7Baggers

Sterling Construction Company, Inc
(NASDAQ:STRL) 

STRL stock logo

Sterling Construction Company, Inc., a construction company, engages in the heavy civil, specialty services, and residential construction activities primarily in the southern United States, the Rocky Mountain states, California, and Hawaii. The company undertakes various heavy civil construction pro...

Founded: 1955
Full Time Employees: 2,800
Sector: Industrials
Industry: Engineering & Construction

Share this website to your friends
• Market Cap:
• Exchange:
• Shs Outstanding:
• Employees:
• Beta:
• Return on Equity (ROE) ttm:
• Return on Assets (ROA) ttm:
• EPS ttm:
• Book value per Share:
• Cash per Share:
• Current ast per Share:
• P/E ttm:
• P/E forward:
• P/E ttm high:
• P/E ttm low:
• P/S ttm:
• P/B ttm:
• P/FCF ttm:
• PEG ratio:
• Cash Ratio ttm:
• Quick Ratio ttm:
• Current Ratio ttm:
• Gross Mgn ttm:
• EBITDA Mgn ttm:
• Operating Mgn ttm:
• Net Income Mgn ttm:
• Trailing Div yield:
• Forward Div yield:
• Payout Ratio ttm:
• Ex-Dividend date:
• Target Price High:
• Target Price Low:
• Target Price Mean:
• Number of Analysts:
• Debt Ratio ttm:
• Debt to Equity ttm:
• Total Net Debt:
At a glance:
Bull Thesis:
Bear Thesis:
Main Competitors:
Moat:
Income Statements:
Quarterly
Annual
    Unit: USD2026-03-31 2025-12-31 2025-09-30 2025-06-30 2025-03-31 2024-12-31 2024-09-30 2024-06-30 2024-03-31 2023-12-31 2023-09-30 2023-06-30 2023-03-31 2022-12-31 2022-09-30 2022-06-30 2022-03-31 2021-12-31 2021-09-30 2021-06-30 2021-03-31 2020-12-31 2020-09-30 2020-06-30 2020-03-31 2019-12-31 2019-09-30 2019-06-30 2019-03-31 2018-12-31 2018-09-30 2018-06-30 2018-03-31 2017-12-31 2017-09-30 2017-06-30 2017-03-31 2016-12-31 2016-09-30 2016-06-30 2016-03-31 2015-12-31 2015-09-30 2015-06-30 2015-03-31 2014-12-31 2014-09-30 2014-06-30 2014-03-31 2013-12-31 2013-09-30 2013-06-30 2013-03-31 2012-12-31 2012-09-30 2012-06-30 2012-03-31 2011-12-31 2011-09-30 2011-06-30 2011-03-31 2010-12-31 2010-09-30 2010-06-30 2010-03-31 2009-12-31 2009-09-30 2009-06-30 2009-03-31 2008-12-31 2008-09-30 2008-06-30 2008-03-31 2007-12-31 2007-09-30 2007-06-30 2007-03-31 2006-12-31 2006-09-30 2006-06-30 2006-03-31 2005-12-31 2005-09-30 2005-06-30 2005-03-31 2004-12-31 2004-09-30 2004-06-30 2004-03-31 2003-12-31 
                                                                                              
      revenues
    825,675,000 755,613,000 689,019,000 614,468,000 430,949,000 498,833,000 593,741,000 582,822,000 440,360,000 485,978,000 560,347,000 522,325,000 403,579,000 291,606,000 556,942,000 510,568,000 410,320,000 401,335,000 463,449,000 401,666,000 315,316,000 347,228,000 383,458,000 400,038,000 296,688,000 346,544,000 291,699,000 264,086,000 223,949,000 255,175,000 291,266,000 268,734,000 222,492,000 253,911,000 304,219,000 246,412,000 153,416,000 168,345,000 205,629,000 189,582,000 126,567,000 152,488,000 176,000,000 177,425,000 117,682,000 153,612,000 189,275,000 194,806,000 134,538,000 125,916,000 185,935,000 133,350,000 111,035,000 158,089,000 205,283,000 168,709,000 98,425,000 113,989,000 159,427,000 128,498,000 99,242,000 137,997,000 118,874,000 116,865,000 86,157,000 71,677,000 103,929,000 120,375,000 94,866,000 109,272,000 114,148,000 106,728,000 84,926,000 88,343,000 77,714,000 71,275,000 68,888,000 64,115,000 68,743,000 60,010,000 56,480,000 61,634,000 61,163,000        
      cost of revenues
    -631,379,000 -591,495,000 -518,803,000 -471,328,000 -336,109,000 -392,156,000 -463,942,000 -470,079,000 -363,456,000 -394,223,000 -468,480,000 -430,051,000 -341,837,000 -223,585,000 -474,919,000 -442,184,000 -354,181,000 -345,661,000 -405,645,000 -345,419,000 -270,284,000 -300,619,000 -333,542,000 -340,439,000 -261,443,000 -312,965,000 -262,483,000 -238,590,000 -204,446,000 -228,360,000 -259,735,000 -237,269,000 -201,898,000 -229,942,000 -273,588,000 -221,207,000 -144,129,000 -161,442,000 -188,597,000 -173,493,000 -122,737,000 -140,268,000 -161,542,000 -168,314,000 -124,518,000 -149,915,000 -180,919,000 -182,307,000 -126,669,000   -149,985,000 -109,650,000 -141,819,000 -191,114,000 -153,550,000 -96,552,000 -812,549,000 144,671,000 114,916,000 91,643,000 109,246,000 105,876,000 104,162,000 77,908,000 64,240,000 87,387,000 101,796,000 83,055,000 99,713,000 101,576,000 94,988,000 76,825,000 76,250,000 69,799,000 63,229,000 63,256,000 57,443,000 60,865,000 52,700,000 49,794,000 54,142,000 54,261,000        
      gross profit
    194,296,000 164,118,000 170,216,000 143,140,000 94,840,000 106,677,000 129,799,000 112,743,000 76,904,000 91,755,000 91,867,000 92,274,000 61,742,000 68,021,000 82,023,000 68,384,000 56,139,000 55,674,000 57,804,000 56,247,000 45,032,000 46,609,000 49,916,000 59,599,000 35,245,000 33,579,000 29,216,000 25,496,000 19,503,000 26,815,000 31,531,000 31,465,000 20,594,000 23,969,000 30,631,000 25,205,000 9,287,000 6,903,000 17,032,000 16,089,000 3,830,000 12,220,000 14,458,000 9,111,000 -6,836,000 3,697,000 8,356,000 12,499,000 7,869,000  8,359,000 -16,635,000 1,385,000 16,270,000 14,169,000 15,159,000 1,873,000 3,900,000 14,756,000 13,582,000 7,599,000 28,751,000 12,998,000 12,703,000 8,249,000 7,437,000 16,542,000 18,579,000 11,811,000 9,559,000 12,572,000 11,740,000 8,101,000 12,093,000 7,915,000 8,046,000 5,632,000 6,672,000 7,878,000 7,310,000 6,686,000 7,492,000 6,902,000        
      yoy
    104.87% 53.85% 31.14% 26.96% 23.32% 16.26% 41.29% 22.18% 24.56% 34.89% 12.00% 34.94% 9.98% 22.18% 41.90% 21.58% 24.66% 19.45% 15.80% -5.62% 27.77% 38.80% 70.85% 133.76% 80.72% 25.22% -7.34% -18.97% -5.30% 11.87% 2.94% 24.84% 121.75% 247.23% 79.84% 56.66% 142.48% -43.51% 17.80% 76.59% -156.03% 230.54% 73.03% -27.11% -186.87%  -0.04% -175.14% 468.16%  -41.01% -209.74% -26.05% 317.18% -3.98% 11.61% -75.35% -86.44% 13.53% 6.92% -7.88% 286.59% -21.42% -31.63% -30.16% -22.20% 31.58% 58.25% 45.80% -20.95% 58.84% 45.91% 43.84% 81.25% 0.47% 10.07% -15.76% -10.95% 14.14%            
      qoq
    18.39% -3.58% 18.92% 50.93% -11.10% -17.81% 15.13% 46.60% -16.19% -0.12% -0.44% 49.45% -9.23% -17.07% 19.94% 21.81% 0.84% -3.68% 2.77% 24.90% -3.38% -6.63% -16.25% 69.10% 4.96% 14.93% 14.59% 30.73% -27.27% -14.96% 0.21% 52.79% -14.08% -21.75% 21.53% 171.40% 34.54% -59.47% 5.86% 320.08% -68.66% -15.48% 58.69% -233.28% -284.91% -55.76% -33.15% 58.84%   -150.25% -1301.08% -91.49% 14.83% -6.53% 709.34% -51.97% -73.57% 8.64% 78.73% -73.57% 121.20% 2.32% 53.99% 10.92% -55.04% -10.96% 57.30% 23.56% -23.97% 7.09% 44.92% -33.01% 52.79% -1.63% 42.86% -15.59% -15.31% 7.77% 9.33% -10.76% 8.55%         
      general and administrative expense
    -47,850,000 -48,611,000 -37,585,000 -33,987,000 -34,631,000 -32,598,000 -30,672,000 -27,856,000 -27,298,000 -26,111,000 -25,237,000 -24,034,000 -23,321,000 -13,518,000 -26,466,000 -23,424,000 -23,072,000 -25,941,000 -19,637,000 -15,829,000 -17,099,000 -20,206,000 -15,154,000 -18,451,000 -17,604,000 -15,098,000 -10,839,000 -10,774,000                                                               
      intangible asset amortization
    -7,093,000 -7,114,000 -6,035,000 -4,536,000 -4,503,000 -4,180,000 -4,280,000 -4,280,000 -4,297,000 -4,017,000 -3,736,000 -3,737,000 -3,736,000 -3,509,000 -3,509,000 -3,514,000 -3,568,000 -2,866,000 -2,866,000 -2,866,000 -2,866,000 -2,867,000 -2,866,000 -2,866,000 -2,837,000                                                                  
      acquisition related costs
    -1,407,000 -304,000 -5,349,000 -2,495,000 -179,000 -212,000 -72,000 -101,000 -36,000 -521,000 -103,000 -59,000 -190,000 -65,000 -277,000 -230,000 -255,000     -13,000 -401,000 -139,000 -473,000 -2,153,000 -1,896,000                                                                
      earn-out expense
    -2,488,000 -1,007,250 -1,343,000 -1,343,000 -1,343,000                                                                                      
      other operating income
    2,356,000 7,118,000 5,405,000 3,785,000 1,892,000                               -4,037,000 -471,000 -2,817,000 -3,785,000 -3,604,000 246,000 -2,588,000 -958,000 325,000 1,761,000 256,000 -603,000 -457,000 1,056,000 -293,000 1,340,000 6,000 252,000 188,000 261,000 1,525,000                                   
      operating income
    137,814,000 119,967,000 125,309,000 104,564,000 56,076,000 62,271,000 87,492,000 72,734,000 42,125,000 55,768,000 57,137,000 60,263,000 32,627,000 42,825,000 47,686,000 41,090,000 28,269,000 19,781,000 32,031,000 32,720,000 22,755,000 20,912,000 28,831,000 33,046,000 12,103,000 9,732,000 12,115,000 11,184,000 4,720,000 9,410,000 14,372,000 12,150,000 6,679,000 6,969,000 12,639,000 8,356,000 -1,788,000 -5,316,000 3,672,000 3,381,000 -6,466,000 72,000 2,381,000 -162,000 -16,678,000 -5,628,000 -1,573,000 2,535,000 441,000  1,523,000 -26,115,000 -7,974,000 7,129,000 4,171,000 8,240,000 -4,562,000 -68,970,000 7,761,000 7,287,000 1,688,000 19,535,000 6,179,000 7,379,000 2,816,000 1,091,000 12,964,000 14,718,000 8,684,000 5,846,000 9,432,000 8,207,000 4,643,000 7,728,000 4,658,000 5,278,000 3,365,000              
      yoy
    145.76% 92.65% 43.22% 43.76% 33.12% 11.66% 53.13% 20.69% 29.11% 30.22% 19.82% 46.66% 15.42% 116.50% 48.87% 25.58% 24.23% -5.41% 11.10% -0.99% 88.01% 114.88% 137.98% 195.48% 156.42% 3.42% -15.70% -7.95% -29.33% 35.03% 13.71% 45.40% -473.55% -231.09% 244.20% 147.15% -72.35% -7483.33% 54.22% -2187.04% -61.23% -101.28% -251.37% -106.39% -3881.86%  -203.28% -109.71% -105.53%  -63.49% -416.93% 74.79% -110.34% -46.26% 13.08% -370.26% -453.06% 25.60% -1.25% -40.06% 1690.56% -52.34% -49.86% -67.57% -81.34% 37.45% 79.33% 87.03% -24.35% 102.49% 55.49% 37.98%                  
      qoq
    14.88% -4.26% 19.84% 86.47% -9.95% -28.83% 20.29% 72.66% -24.46% -2.40% -5.19% 84.70% -23.81% -10.19% 16.05% 45.35% 42.91% -38.24% -2.11% 43.79% 8.81% -27.47% -12.75% 173.04% 24.36% -19.67% 8.32% 136.95% -49.84% -34.53% 18.29% 81.91% -4.16% -44.86% 51.26% -567.34% -66.37% -244.77% 8.61% -152.29% -9080.56% -96.98% -1569.75% -99.03% 196.34% 257.79% -162.05% 474.83%   -105.83% 227.50% -211.85% 70.92% -49.38% -280.62% -93.39% -988.67% 6.50% 331.69% -91.36% 216.15% -16.26% 162.04% 158.11% -91.58% -11.92% 69.48% 48.55% -38.02% 14.93% 76.76% -39.92% 65.91% -11.75% 56.85%               
      interest income
    3,638,000 2,942,000 5,677,000 6,901,000 6,827,000 7,824,000 7,591,000 6,305,000 5,902,000 5,813,000 4,150,000 2,203,000 1,974,000 678,000 167,000 30,000 10,000 13,000 13,000 12,000 14,000 15,000 23,000 24,000 99,000 156,000 331,000 291,000 364,000 413,000 274,000 201,000 129,000 122,000 107,000 44,000 41,000 14,000 15,000 1,000 3,000 -4,000 32,000 69,000 363,000 110,000 113,000 189,000 358,000 8,000 335,000 255,000 281,000 87,000 287,000 511,000 416,000 403,000 309,000 565,000 378,000 541,000 583,000 483,000 202,000 166,000 129,000 118,000 159,000 257,000 303,000 223,000 287,000 248,000 480,000 475,000 466,000 433,000 329,000            
      interest expense
    -4,014,000 -5,419,000 -4,140,000 -4,995,000 -5,232,000 -5,792,000 -6,286,000 -6,513,000 -6,664,000 -6,804,000 -7,257,000 -7,731,000 -7,528,000 -6,390,000 -5,134,000 -4,480,000 -4,587,000 -3,688,000 -3,919,000 -5,737,000 -6,004,000 -6,840,000 -7,177,000 -7,557,000 -7,803,000 -7,698,000 -3,024,000 -2,904,000 -3,060,000 -3,085,000 -3,067,000 -3,111,000 -3,087,000 -3,128,000 -3,576,000 -2,984,000 -112,000 -452,000 -491,000 -812,000 -873,000 -909,000 -1,087,000 -634,000 -382,000 -357,000 -211,000 -251,000 -319,000   -209,000 -99,000 34,000 -159,000 -432,000 -385,000 -286,000 -357,000 -374,000 -214,000 -296,000 -297,000 -297,000 -297,000 -80,000 -52,000 -45,000 -58,000 227,000 -144,000 -152,000 -130,000 222,000 13,000 42,000  30,000 76,000            
      income before income taxes
    137,438,000 117,490,000 126,846,000 106,470,000 57,671,000 155,592,000 88,797,000 72,526,000 41,363,000 54,777,000 54,030,000 54,735,000 27,073,000 34,685,000 42,719,000 36,640,000 26,120,000 16,106,000 29,093,000 28,396,000 16,428,000 13,786,000 21,677,000 25,513,000 4,399,000 -5,538,000 9,422,000 8,571,000 2,024,000                                                       3,647,000 1,228,000      
      income tax expense
    -33,673,000 -25,793,000 -30,517,000 -27,362,000 -15,080,000 -38,400,000 -23,404,000 -17,952,000 -7,604,000 -12,341,000 -13,891,000 -14,505,000 -7,033,000 -12,280,000 -12,562,000 -10,268,000 -6,597,000 -5,068,750 -7,336,000 -8,179,000 -4,760,000 -3,678,000 -6,280,000 -7,248,000 -1,184,000 -445,500 -913,000 -706,000 -163,000 -187,000 -1,413,000 -98,000  351,000 -344,000 -98,000 -27,000   -27,000    -28,000 -3,000             -823,750 -1,984,000 -1,145,000 -166,000 -1,236,250 -1,824,000 -2,263,000 -858,000 -3,038,500 -4,214,000 -5,021,000 -2,919,000 -1,904,000 -3,245,000 -2,781,000 -1,591,000                189,000  
      net income, including noncontrolling interests
    103,765,000 91,697,000 96,329,000 79,108,000 42,591,000 117,192,000 65,393,000 54,574,000 33,759,000 42,436,000 40,139,000 40,230,000 20,040,000                                                                              
      less: net income attributable to noncontrolling interests
    -7,796,000 -4,100,000 -4,241,000 -8,117,000 -3,114,000 -3,979,000 -4,072,000 -2,695,000 -2,711,000 -2,263,000 -786,000 -750,000 -391,000 -424,000 -634,000 -411,000 -271,000 -573,000 -631,000 -161,000 -1,113,000 -203,000 -240,000 -55,000 -100,000 -159,000 -552,000 -37,000 -46,000                                                              
      net income attributable to sterling common stockholders
    95,969,000 87,597,000 92,088,000 70,991,000 39,477,000 113,213,000 61,321,000 51,879,000 31,048,000 40,173,000 39,353,000 39,480,000 19,649,000 31,725,000 29,523,000 25,961,000 19,252,000 10,908,000 21,126,000 20,056,000 10,555,000 5,824,000 15,157,000 18,210,000 3,115,000 22,301,000 7,957,000 7,828,000 1,815,000 5,607,000 8,915,000 8,176,000 2,489,000 3,080,000 7,132,000 3,662,000  -722,500 2,415,000 2,023,000  -4,819,500 256,000 -2,542,000 -16,992,000   1,200,000 205,000   -17,025,000  2,926,000 990,000 3,287,000 -7,500,000 -43,616,000 3,461,000 4,211,000 44,000 9,372,000 3,496,000 4,667,000 1,552,000 761,000 8,092,000 9,285,000 5,565,000                      
      net income per share
                                                                             0.223 0.31 0.35 0.23 0.243 0.34 0.32 0.32          
      basic
    3.13 2.86 3.02 2.33 1.29 3.68 1.68 1.31 1.28 1.28 0.64 0.72 0.98 0.86 0.64 0.38 0.74 0.7 0.37 0.21 0.54 0.65 0.11 0.83 0.3 0.3 0.07 0.21 0.33 0.3 0.09 0.11 0.27 0.14      -0.25 0.01   -0.035 -0.21     -0.93 -0.39 0.01 0.01 0.15 -0.44 -2.71 0.21 0.26  0.55 0.22 0.29 0.1 0.04 0.61 0.7 0.42 0.273 0.46 0.39 0.24                  
      diluted
    3.09 2.82 2.97 2.31 1.28 3.64 1.97 1.67 1.27 1.26 1.27 0.64 0.7 0.97 0.86 0.64 0.36 0.72 0.69 0.37 0.2 0.54 0.65 0.11 0.81 0.3 0.29 0.07 0.21 0.33 0.3 0.09 0.1 0.26 0.13      -0.25 0.01   -0.035 -0.21     -0.93 -0.39 0.01 0.01 0.15 -0.44 -2.71 0.21 0.25  0.54 0.21 0.28 0.09 0.04 0.59 0.68 0.41 0.26 0.44 0.37 0.23                  
      weighted-average common shares outstanding:
                                                                                              
      basic
    30,652 30,542 30,519 30,408 30,547 30,830 30,735 30,914 30,977 30,755 30,800 30,780 30,618 30,199 30,278 30,225 29,964 28,600 28,710 28,582 28,279 27,859 28,003 27,941 27,736 26,671 26,365 26,338 26,377 26,903 26,908 26,887 26,854 26,274 26,486 26,978   25,002,964 22,761,671   19,627,674 19,269,977 18,901,739  18,809,401 17,942,124 16,667,939 16,635,179 16,652,074 16,629,630 16,598,255 16,420,886 16,404,749 16,359,597 16,322,477 16,395,739 16,385,729 16,483,691 16,464,842 16,194,708 16,199,356 16,119,234 16,087,808   13,223,165                   5,343,508 5,316,440 5,172,458  
      diluted
    31,038 30,947 30,960 30,762 30,881 31,146 31,070 31,145 31,186 31,208 31,217 31,000 30,789 30,564 30,540 30,362 30,112 29,101 29,213 29,054 28,763 28,195 28,233 27,957 27,992 27,119 26,637 26,623 26,723 27,194 27,295 27,125 27,078 26,712 26,920 27,336   25,364,881 22,958,551   19,627,674 19,269,977 18,901,739  18,809,401 18,110,025 16,855,173 16,635,179 16,652,074 16,629,630 16,598,255 16,420,886 16,504,033 16,444,324 16,322,477 16,395,739 16,440,835 16,594,509 16,624,459 16,563,169 16,549,056 16,542,667 16,532,581   13,730,182                   7,127,758 7,081,760 7,266,573  
      other operating expense
         -7,416,000 -7,283,000 -7,772,000 -3,148,000 -5,338,000 -5,654,000 -4,181,000 -1,868,000 -8,104,000 -4,085,000 -126,000 -975,000 -3,209,000 -3,270,000 -4,832,000 -2,312,000 -2,611,000 -2,664,000 -5,097,000 -2,228,000 -1,901,000 -4,366,000 -3,538,000 -2,294,000 -5,141,000 -5,452,000 -5,693,000 -815,000 -5,194,000 -4,863,000                                                        
      continuing operations:
                                                                                              
      net income from continuing operations
             40,173,000 39,353,000 39,480,000 19,649,000                                                             4,692,000 3,443,000 3,797,000 2,536,000 2,915,000 3,545,000 3,156,000 3,022,000 5,066,000 2,723,000        
      discontinued operations
                                                                                              
      pretax loss
                                                                                              
      income tax benefit
                                    -41,000     -17,000 -41,000   2,000 39,000   -59,000 -546,000 -28,000  -14,150,000 380,000 9,747,000 2,800,000 -1,567,000 -847,000 -984,000 3,976,000                                  
      net loss from discontinued operations
                                                                                              
      net income from discontinued operations
                                                                                 0.02 0.01 0.02 0.02 -531,999.93 57,000        
      pretax income
                                                                                              
      gain on extinguishment of debt
                 607,000   2,428,000  968,000 1,401,000                                                                       
      net income
                 19,013,000 30,157,000 26,372,000 19,523,000 11,481,000 21,757,000 20,217,000 11,668,000 6,027,000 15,397,000 18,265,000 3,215,000 22,460,000 8,509,000 7,865,000 1,861,000 6,551,000 10,166,000 9,142,000 3,680,000 4,314,000 8,826,000 4,563,000 -1,886,000 -5,774,000 3,155,000 2,543,000 -7,336,000 -856,000 1,365,000 -995,000 -16,700,000 -5,934,000 -2,217,000 2,445,000 480,000  2,095,000 -16,220,000 -4,419,000 5,780,000 4,069,000 7,668,000 195,000 -48,419,000 5,941,000 6,292,000 1,482,000 13,373,000 4,721,000 5,849,000 2,280,000 1,064,000 8,827,000 9,770,000 5,866,000 3,832,000 5,978,000 5,140,000 3,117,000 4,692,000 3,443,000 3,797,000 2,511,000 3,153,000 3,610,000 3,364,000 3,193,000 5,093,000 2,780,000 2,401,000 827,000 3,046,000 716,000 1,624,000 268,000  
      yoy
                 65.60% 38.61% 30.44% 67.32% 90.49% 41.31% 10.69% 262.92% -73.17% 80.95% 132.23% 72.76% 242.85% -16.30% -13.97% -49.43% 51.85% 15.18% 100.35% -295.12% -174.71% 179.75% 79.43% -74.29% 574.53% 131.14% -355.58% -56.07% -85.57% -161.57% -140.70% -3579.17%  -205.82% -115.07% -110.86%  -48.51% -311.53% -2366.15% -111.94% -31.51% 21.87% -86.84% -462.07% 25.84% 7.57% -35.00% 1156.86% -46.52% -40.13% -61.13% -72.23% 47.66% 90.08% 88.19% -18.33% 73.63% 35.37% 24.13% 48.81% -4.63% 12.87% -21.36% -38.09% 29.86% 40.11% 286.09% 67.20% 288.27% 47.84% 208.58%      
      qoq
                 -36.95% 14.35% 35.08% 70.05% -47.23% 7.62% 73.27% 93.60% -60.86% -15.70% 468.12% -85.69% 163.96% 8.19% 322.62% -71.59% -35.56% 11.20% 148.42% -14.70% -51.12% 93.43% -341.94% -67.34% -283.01% 24.07% -134.66% 757.01% -162.71% -237.19% -94.04% 181.43% 167.66% -190.67% 409.38%   -112.92% 267.05% -176.45% 42.05% -46.94% 3832.31% -100.40% -915.00% -5.58% 324.56% -88.92% 183.27% -19.29% 156.54% 114.29% -87.95% -9.65% 66.55% 53.08% -35.90% 16.30% 64.90% -33.57% 36.28% -9.32% 51.21% -20.36% -12.66% 7.31% 5.36% -37.31% 83.20% 15.79% 190.33% -72.85% 325.42% -55.91% 505.97%   
      loss on extinguishment of debt
                        -337,000               -755,000        -240,000                                               
      general and administrative expenses
                                -12,489,000 -12,264,000 -11,707,000 -13,622,000 -13,100,000 -11,806,000 -13,129,000 -12,812,000 -10,604,000 -9,402,000 -9,575,000 -9,104,000 -10,542,000 -9,560,000 -11,119,000 -9,598,000 -11,603,000 -9,581,000 -9,326,000 -9,507,000 -8,484,000   -9,486,000 -9,611,000 -8,818,000 -10,259,000 -8,444,000 -7,666,000 -5,358,000 -7,071,000 -6,300,000 -6,056,000 -7,413,000 -6,774,000 -5,241,000 -5,464,000 -4,435,000 -3,508,000 -3,814,000 -3,214,000 -3,673,000 -3,201,000 -3,442,000 -3,447,000 4,481,000 3,257,000 2,876,000 2,575,000 2,650,000 2,866,000 2,842,000 2,309,000 2,320,000 2,410,000        
      weighted-average number of common shares outstanding used in computing per share amounts:
                                                                                              
      basic
    30,652 30,542 30,519 30,408 30,547 30,830 30,735 30,914 30,977 30,755 30,800 30,780 30,618 30,199 30,278 30,225 29,964 28,600 28,710 28,582 28,279 27,859 28,003 27,941 27,736 26,671 26,365 26,338 26,377 26,903 26,908 26,887 26,854 26,274 26,486 26,978   25,002,964 22,761,671   19,627,674 19,269,977 18,901,739  18,809,401 17,942,124 16,667,939 16,635,179 16,652,074 16,629,630 16,598,255 16,420,886 16,404,749 16,359,597 16,322,477 16,395,739 16,385,729 16,483,691 16,464,842 16,194,708 16,199,356 16,119,234 16,087,808   13,223,165                   5,343,508 5,316,440 5,172,458  
      diluted
    31,038 30,947 30,960 30,762 30,881 31,146 31,070 31,145 31,186 31,208 31,217 31,000 30,789 30,564 30,540 30,362 30,112 29,101 29,213 29,054 28,763 28,195 28,233 27,957 27,992 27,119 26,637 26,623 26,723 27,194 27,295 27,125 27,078 26,712 26,920 27,336   25,364,881 22,958,551   19,627,674 19,269,977 18,901,739  18,809,401 18,110,025 16,855,173 16,635,179 16,652,074 16,629,630 16,598,255 16,420,886 16,504,033 16,444,324 16,322,477 16,395,739 16,440,835 16,594,509 16,624,459 16,563,169 16,549,056 16,542,667 16,532,581   13,730,182                   7,127,758 7,081,760 7,266,573  
      income before income taxes and noncontrolling interests in earnings
                                 6,738,000 11,579,000 9,240,000 3,721,000                                                          
      noncontrolling interests in earnings
                                 -944,000 -1,251,000 -966,000 -1,191,000                                                          
      income before income taxes and earnings attributable to noncontrolling interests
                                     3,963,000 9,170,000 4,661,000  -392,500 3,196,000 2,570,000  -4,084,500 1,326,000 -967,000  -5,875,000 -1,671,000 2,473,000   1,715,000 -25,967,000  7,347,000 4,916,000 8,652,000  -68,726,000 7,925,000 7,437,000 1,648,000                              
      noncontrolling owners’ interests in earnings of subsidiaries and joint ventures
                                     -1,234,000 -1,694,000 -901,000 -371,000 -574,000 -740,000 -520,000 8,000     -1,318,000 -1,718,000 -1,245,000 -275,000   -805,000 -161,000 -2,854,000 -3,079,000 -4,381,000 -7,695,000 4,803,000 -2,480,000  -1,438,000                              
      loss before income taxes and earnings attributable to noncontrolling interests
                                        -1,859,000    -7,336,000                                                  
      net loss attributable to sterling common stockholders
                                        -2,257,000    -7,328,000     -7,252,000 -3,935,000      -4,580,000                                      
      net income per share
                                                                             0.223 0.31 0.35 0.23 0.243 0.34 0.32 0.32          
      basic and diluted
                                        -0.09 -0.28 0.1 0.09 -0.37                                                  
      weighted-average number of common shares outstanding used in computing per share amounts:
                                                                                              
      basic and diluted
                                        25,022 23,140   19,760,221 19,375,213    18,063,466                                             
      noncontrolling owners’ interests in earnings of subsidiaries
                                             -268,000 -1,109,000 -1,547,000 -292,000                                              
      net earnings per share attributable to sterling common stockholders:
                                                                                              
      basic
                                               -0.13 -0.9   0.07 0.01                                          
      diluted
                                               -0.13 -0.9   0.07 0.01                                          
      income before income taxes and earnings attributable to noncontrolling owners’ interests
                                                -16,697,000    480,000                                          
      gain on sale of securities
                                                                -204,000 -1,082,000 80,000 547,000 417,000                          
      gain on sale of securities and other
                                                     -316,000 163,000 102,000 573,000 97,000 617,000 333,000 750,000 127,000 212,000 -41,000                               
      loss before income taxes and earnings attributable to noncontrolling owners’ interests
                                                        -7,219,000                                      
      other income
                                                            1,231,000 164,000 76,000 5,000 145,000 -1,803,000 -45,000 -83,000 31,000 300,000 -70,000 -47,000 87,000 -40,000 61,000 -91,000 -11,000 116,000  108,000 308,000 29,000 89,000            
      income (loss ) before income taxes and earnings attributable to noncontrolling interests
                                                            -3,781,000                                  
      noncontrolling owners' interests in earnings of subsidiaries and joint ventures
                                                               -2,081,000                               
      income before income taxes and earnings attributable to non-controlling interests
                                                                 4,449,000 6,545,000                            
      less: net income attributable to non-controlling interests
                                                                 -784,000 -1,225,000                            
      income before income taxes and earnings attributable to the non-controlling interests
                                                                   8,112,000 3,138,000                          
      less: net income attributable to the non-nontrolling interests of subsidiaries and joint ventures
                                                                   -1,182,000                           
      less: net income attributable to the non-controlling interests of subsidiaries
                                                                    -728,000                          
      income before income taxes and earnings attributable to the noncontrolling interest
                                                                     9,154,500 13,041,000 14,791,000 8,785,000                      
      less: net income attributable to the noncontrolling interest in earnings of subsidiary
                                                                     -380,250 -735,000 -485,000 -301,000                      
      weighted average number of common shares outstanding used in computing per share amounts:
                                                                                              
      basic
                                                                     13,358,903 13,275,416  13,188,266  13,125,671 13,110,500 13,068,864                  
      diluted
                                                                     13,855,709 13,740,464  13,715,629  13,705,477 13,783,307 13,684,249                  
      income before income taxes andminority interest
                                                                         5,667,250 9,591,000                    
      minority interest in earnings ofsubsidiary
                                                                         -204,750 -368,000 -357,000                   
      income before income taxes and minority interest
                                                                           8,278,000 4,800,000                  
      minority interest in earnings of rhb
                                                                            -92,000                  
      income from continuing operations before income taxes
                                                                             7,692,000 5,125,000 5,711,000 3,831,000 4,454,000 5,354,000 4,832,000 4,563,000 5,034,000 4,126,000        
      income taxes
                                                                             1,222,500 1,682,000 1,914,000 1,295,000 1,256,750 1,809,000 1,676,000 1,541,000 705,000 1,403,000        
      income (loss) from discontinued operations, net of income taxes of 0, 45, 0 and 290, respectively
                                                                             -6,250                 
      basic net income per share:
                                                                                              
      net income per share
                                                                             0.223 0.31 0.35 0.23 0.243 0.34 0.32 0.32          
      weighted average number of shares outstanding used in computing basic per share amounts
                                                                             11,043,948 11,003,346 10,969,513               
      diluted net income per share:
                                                                                              
      weighted average number of shares outstanding used in computing diluted per share amounts
                                                                             11,836,176 11,774,116 11,783,284               
      income from discontinued operations, net of income taxes of 0, 144, 0 and 245, respectively
                                                                                              
      net income from discontinued operations, net of income taxes of 0 and 102
                                                                                -25,000              
      weighted average number of shares outstanding used
                                                                                              
      in computing basic per share amounts
                                                                                10,919,145              
      diluted net income per share
                                                                                0.21    0.28   0.26 0.09      
      in computing diluted per share amounts
                                                                                11,774,690              
      income from discontinued operations, net of income taxes of 45, 37, 290 and 268, respectively
                                                                                 111,000 65,000            
      weighted-average number of shares outstanding used in computing basic per share amounts
                                                                                 10,582,730 10,779,232 10,576,649 10,002,088 7,775,476 7,801,717 7,720,053 7,389,499 5,342,847     
      weighted-average number of shares outstanding used in computing diluted per share amounts
                                                                                 11,714,310 11,793,285 11,799,809 11,266,294 9,537,923 9,704,822 9,413,612 9,283,485 7,027,682     
      net interest income
                                                                                   364,000 186,000          
      income from discontinued operations, net of income taxes of 144, 136, 245 and 230, respectively
                                                                                   208,000           
      net income from discontinued operations, net of income taxes of 102 and 94, respectively
                                                                                    171,000          
      interest expense, net of interest income
                                                                                     138,000 366,000 435,000 547,000 470,000 487,000 219,000 519,000  
      income from continuing operations before minority interest and income taxes
                                                                                     5,034,000 4,126,000        
      minority interest
                                                                                              
      income from continuing operations
                                                                                     0.18 0.35        
      income from discontinued operations
                                                                                     0.018 0.01        
      contract revenues
                                                                                       57,228,000 39,413,000 37,317,000 40,221,000 29,354,000 25,586,000  
      distribution revenues
                                                                                       6,089,000 6,536,000      
      cost of contract revenues earned
                                                                                       51,223,000 36,056,000 35,247,000 36,323,000 24,739,000 22,908,000  
      cost of goods sold, including occupancy, buying and warehouse expenses
                                                                                       5,017,000 5,563,000 3,450,000 4,710,000 4,527,000 5,776,000  
      selling and administrative expenses
                                                                                       2,984,000 2,525,000 2,309,000 2,816,000 2,389,000 2,476,000  
      provision for doubtful accounts
                                                                                       11,000 30,000      
      income before minority interest and income taxes
                                                                                       3,647,000 1,228,000 -140,000 1,338,000 2,869,000 630,000  
      income taxes:
                                                                                              
      state income tax expense
                                                                                       6,000 -17,000 1,000  9,000   
      deferred income tax expense
                                                                                       1,240,000 418,000      
      total income tax expense
                                                                                       1,246,000 401,000      
      basic net income per share
                                                                                       0.31 0.11      
      current income tax expense
                                                                                              
      sales
                                                                                         4,391,250 5,453,000 5,389,000 6,723,000  
      minority interest in net earnings of subsidiary
                                                                                         215,500 253,000 442,000 167,000  
      income before taxes
                                                                                         993,750 1,085,000 2,427,000 463,000  
      federal income tax expense
                                                                                         338,000 369,000 794,000   
      net income tax expense
                                                                                         342,000 369,000 803,000 195,000  
      basic and diluted net income per share:
                                                                                              
      basic
                                                                                         0.123 0.13 0.31 0.05  
      diluted
                                                                                         0.093 0.1 0.23 0.04  
      weighted-average number of shares outstanding:
                                                                                              
      basic
    30,652 30,542 30,519 30,408 30,547 30,830 30,735 30,914 30,977 30,755 30,800 30,780 30,618 30,199 30,278 30,225 29,964 28,600 28,710 28,582 28,279 27,859 28,003 27,941 27,736 26,671 26,365 26,338 26,377 26,903 26,908 26,887 26,854 26,274 26,486 26,978   25,002,964 22,761,671   19,627,674 19,269,977 18,901,739  18,809,401 17,942,124 16,667,939 16,635,179 16,652,074 16,629,630 16,598,255 16,420,886 16,404,749 16,359,597 16,322,477 16,395,739 16,385,729 16,483,691 16,464,842 16,194,708 16,199,356 16,119,234 16,087,808   13,223,165                   5,343,508 5,316,440 5,172,458  
      diluted
    31,038 30,947 30,960 30,762 30,881 31,146 31,070 31,145 31,186 31,208 31,217 31,000 30,789 30,564 30,540 30,362 30,112 29,101 29,213 29,054 28,763 28,195 28,233 27,957 27,992 27,119 26,637 26,623 26,723 27,194 27,295 27,125 27,078 26,712 26,920 27,336   25,364,881 22,958,551   19,627,674 19,269,977 18,901,739  18,809,401 18,110,025 16,855,173 16,635,179 16,652,074 16,629,630 16,598,255 16,420,886 16,504,033 16,444,324 16,322,477 16,395,739 16,440,835 16,594,509 16,624,459 16,563,169 16,549,056 16,542,667 16,532,581   13,730,182                   7,127,758 7,081,760 7,266,573  
      state tax expense
                                                                                            6,000  
      weighted-average number of shares outstanding used in computing basic and diluted per share amounts:
                                                                                              
      basic
    30,652 30,542 30,519 30,408 30,547 30,830 30,735 30,914 30,977 30,755 30,800 30,780 30,618 30,199 30,278 30,225 29,964 28,600 28,710 28,582 28,279 27,859 28,003 27,941 27,736 26,671 26,365 26,338 26,377 26,903 26,908 26,887 26,854 26,274 26,486 26,978   25,002,964 22,761,671   19,627,674 19,269,977 18,901,739  18,809,401 17,942,124 16,667,939 16,635,179 16,652,074 16,629,630 16,598,255 16,420,886 16,404,749 16,359,597 16,322,477 16,395,739 16,385,729 16,483,691 16,464,842 16,194,708 16,199,356 16,119,234 16,087,808   13,223,165                   5,343,508 5,316,440 5,172,458  
      diluted
    31,038 30,947 30,960 30,762 30,881 31,146 31,070 31,145 31,186 31,208 31,217 31,000 30,789 30,564 30,540 30,362 30,112 29,101 29,213 29,054 28,763 28,195 28,233 27,957 27,992 27,119 26,637 26,623 26,723 27,194 27,295 27,125 27,078 26,712 26,920 27,336   25,364,881 22,958,551   19,627,674 19,269,977 18,901,739  18,809,401 18,110,025 16,855,173 16,635,179 16,652,074 16,629,630 16,598,255 16,420,886 16,504,033 16,444,324 16,322,477 16,395,739 16,440,835 16,594,509 16,624,459 16,563,169 16,549,056 16,542,667 16,532,581   13,730,182                   7,127,758 7,081,760 7,266,573  
    Balance Sheets:
    Quarterly
    Annual
      Unit: USD2026-03-31 2025-12-31 2025-09-30 2025-06-30 2025-03-31 2024-12-31 2024-09-30 2024-06-30 2024-03-31 2023-12-31 2023-09-30 2023-06-30 2023-03-31 2022-12-31 2022-09-30 2022-06-30 2022-03-31 2021-12-31 2021-09-30 2021-06-30 2021-03-31 2020-12-31 2020-09-30 2020-06-30 2020-03-31 2019-12-31 2019-09-30 2019-06-30 2019-03-31 2018-12-31 2018-09-30 2018-06-30 2018-03-31 2017-12-31 2017-09-30 2017-06-30 2017-03-31 2016-12-31 2016-09-30 2016-06-30 2016-03-31 2015-12-31 2015-09-30 2015-06-30 2015-03-31 2014-12-31 2014-09-30 2014-06-30 2014-03-31 2013-12-31 2013-09-30 2013-06-30 2013-03-31 2012-12-31 2012-09-30 2012-06-30 2012-03-31 2011-12-31 2011-09-30 2011-06-30 2011-03-31 2010-12-31 2010-09-30 2010-06-30 2010-03-31 2009-12-31 2009-09-30 2009-06-30 2009-03-31 2008-12-31 2008-09-30 2008-06-30 2008-03-31 2007-12-31 2007-09-30 2007-06-30 2007-03-31 2006-12-31 2006-09-30 2006-06-30 2006-03-31 2005-12-31 2005-09-30 2005-06-30 2005-03-31 2004-12-31 2004-09-30 2004-06-30 2004-03-31 2003-12-31 
                                                                                                
        assets
                                                                                                
        current assets:
                                                                                                
        cash and cash equivalents
      511,858,000 390,721,000 306,395,000 699,373,000 638,647,000 664,195,000 648,127,000 539,985,000 480,414,000 471,563,000 409,398,000 278,121,000 202,576,000 181,544,000 146,479,000 72,905,000 80,395,000 81,840,000 117,702,000 93,630,000 61,402,000 66,185,000 72,593,000 70,612,000 73,905,000 45,733,000 76,530,000 71,730,000 56,764,000 94,095,000 89,336,000 66,585,000 55,462,000 83,953,000 66,541,000 60,058,000 37,147,000 42,785,000 43,021,000 42,635,000 14,919,000 4,426,000 11,488,000 14,336,000 17,196,000 22,843,000 17,000,000 14,281,000 1,287,000 1,872,000 5,014,000 1,029,000 4,154,000 3,142,000 1,034,000 19,112,000 16,610,000 16,371,000 16,650,000 10,267,000 12,370,000 49,441,000 13,076,000 36,823,000 46,867,000 54,406,000 62,239,000 78,571,000 57,712,000 55,305,000 62,094,000 85,197,000 72,202,000 80,649,000 14,894,000 15,596,000 15,153,000 28,466,000 18,996,000 15,945,000 35,419,000 22,267,000 20,138,000 6,451,000 1,005,000 3,518,000 3,352,000 3,672,000 2,869,000 2,765,000 
        accounts receivable
      513,903,000 501,163,000 496,058,000 347,661,000 285,751,000 247,050,000 329,882,000 374,771,000 274,010,000 252,435,000 326,331,000 296,496,000 230,148,000 262,646,000 329,548,000 302,844,000 226,397,000 232,153,000 218,683,000 211,529,000 170,186,000 177,424,000                                                                     
        contract assets
      131,724,000 101,154,000 102,736,000 51,778,000 48,704,000 55,387,000 79,736,000 77,034,000 88,329,000 88,600,000 107,327,000 115,011,000 125,494,000 109,803,000 153,666,000 121,667,000 87,865,000 83,310,000 85,498,000 86,184,000 90,109,000 84,975,000                                                                     
        receivables from and equity in construction joint ventures
      7,229,000 6,179,000 5,204,000 7,968,000 6,912,000 5,811,000 7,814,000 5,467,000 18,222,000 17,506,000 14,593,000 11,407,000 13,648,000 14,122,000 16,316,000 16,910,000 19,292,000 16,896,000 21,656,000 18,011,000 18,166,000 16,653,000 13,802,000 12,396,000 10,789,000 9,196,000 14,651,000 14,381,000 11,625,000 10,720,000 11,521,000 11,766,000 12,485,000 11,380,000 9,069,000 7,463,000 7,890,000 7,130,000 9,469,000 7,365,000 8,316,000 12,930,000 11,089,000 10,837,000 9,698,000 9,153,000 10,621,000 8,817,000 11,196,000 6,118,000 12,260,000 8,543,000 9,450,000 11,005,000 10,767,000 6,889,000 7,546,000 6,057,000 8,135,000 5,910,000 6,288,000 6,744,000 7,599,000 4,607,000                           
        other current assets
      29,977,000 35,245,000 52,755,000 22,979,000 17,720,000 17,383,000 18,086,000 19,511,000 17,883,000 17,875,000 18,315,000 14,765,000 16,094,000 29,139,000 23,549,000 23,170,000 21,941,000 20,492,000 22,483,000 24,738,000 15,366,000 16,306,000 14,171,000 11,965,000 10,335,000 11,790,000 11,065,000 7,951,000 6,696,000 8,074,000 8,857,000 9,066,000 6,479,000 7,529,000 9,654,000 11,206,000 6,609,000 5,448,000 6,170,000 5,428,000 4,627,000 6,013,000 9,044,000 5,652,000 4,451,000 5,278,000 10,153,000 11,769,000 11,485,000 11,377,000 9,026,000 10,180,000 8,194,000 4,459,000 5,406,000 5,032,000                                   
        total current assets
      1,194,691,000 1,034,462,000 963,148,000 1,132,299,000 997,734,000 1,021,880,000 1,083,645,000 1,016,768,000 878,858,000 847,979,000 875,964,000 715,800,000 587,960,000 597,254,000 669,558,000 537,496,000 435,890,000 434,691,000 466,022,000 434,092,000 355,229,000 361,543,000 427,218,000 416,447,000 371,088,000 357,521,000 332,746,000 309,023,000 268,918,000 302,616,000 313,376,000 289,883,000 257,179,000 278,526,000 279,793,000 260,749,000 180,967,000 175,908,000 200,064,000 201,139,000 153,738,000 134,921,000 157,154,000 162,658,000 157,295,000 156,974,000 181,439,000 177,048,000 127,094,000 114,485,000 176,763,000 156,963,000 149,243,000 164,758,000 213,753,000 189,841,000 166,248,000 164,023,000 198,068,000 178,721,000 170,961,000 176,329,000 179,529,000 188,089,000 184,049,000 189,188,000 178,534,000 190,845,000 161,157,000 152,722,000  158,345,000 135,124,000 142,950,000 111,322,000 106,914,000 103,967,000 107,408,000 112,305,000 99,963,000 94,424,000 73,627,000 78,770,000 63,090,000 53,880,000 48,078,000 52,028,000 43,012,000 43,894,000 40,199,000 
        property and equipment
      284,303,000 278,269,000 268,033,000 244,810,000 244,659,000 236,795,000 270,532,000 268,185,000 258,802,000 243,648,000 231,058,000 228,461,000 215,217,000 215,482,000 222,647,000 214,976,000 212,603,000 204,316,000 148,444,000 142,015,000 135,428,000 126,668,000 121,534,000 119,596,000 117,818,000 116,030,000 48,584,000 49,217,000 52,011,000 51,999,000 52,196,000 51,726,000 52,142,000 54,406,000 59,464,000 61,275,000 65,821,000 68,127,000 70,363,000 72,035,000 72,481,000 73,475,000 74,550,000 80,813,000 82,541,000 87,098,000 90,453,000 88,925,000 89,432,000 93,683,000 95,926,000 97,498,000 101,902,000 102,308,000 102,326,000 102,403,000 82,680,000 83,429,000 83,719,000 81,102,000 78,944,000 74,681,000 76,011,000 75,345,000 78,034,000 80,282,000 71,681,000 74,608,000 76,015,000 77,993,000 78,582,000 76,245,000 73,433,000 72,389,000 62,390,000 58,121,000 50,782,000 46,617,000 45,795,000 38,919,000 35,266,000 27,271,000 27,130,000 27,151,000 23,020,000 21,227,000     
        investment in unconsolidated subsidiary
      100,482,000 105,813,000 108,512,000 109,040,000 109,291,000 107,400,000                                                                                     
        operating lease right-of-use assets
      53,941,000 58,167,000 64,232,000 44,470,000 48,264,000 52,668,000 54,748,000 58,970,000 55,169,000 57,235,000 58,492,000 61,106,000 62,278,000 59,415,000 60,384,000 46,628,000 37,344,000 24,520,000 17,470,000 16,609,000 15,804,000 16,515,000 17,250,000 17,076,000 14,790,000 13,979,000 14,589,000 14,995,000 15,290,000                                                              
        goodwill
      584,821,000 585,221,000 580,564,000 283,664,000 283,664,000 264,597,000 281,363,000 281,363,000 281,363,000 281,117,000 262,692,000 262,692,000 262,671,000 262,692,000 252,887,000 252,887,000 252,353,000 259,791,000 192,014,000 192,014,000 192,014,000 192,014,000 192,014,000 192,014,000 191,892,000 191,892,000 85,231,000 85,231,000 85,231,000 85,231,000 85,231,000 85,231,000 85,231,000 85,231,000 85,277,000 90,971,000 54,820,000 54,820,000 54,820,000 54,820,000 54,820,000 54,820,000 54,820,000 54,820,000 54,820,000 54,820,000 54,820,000 54,820,000 54,820,000 54,820,000 54,820,000 54,820,000 54,820,000 54,820,000 54,460,000 54,460,000 54,500,000 54,050,000 121,010,000 114,745,000 114,745,000 114,745,000 114,745,000 114,745,000 114,745,000 114,745,000 57,232,000 57,232,000 57,232,000 57,232,000 57,232,000 57,232,000 57,232,000 57,232,000 12,735,000 12,735,000 12,735,000 12,735,000 12,735,000 12,735,000 12,735,000 12,735,000 12,735,000 12,863,000 12,863,000 12,863,000 7,809,000 7,809,000  7,809,000 
        other intangibles
      548,009,000 554,702,000 561,716,000 329,158,000 333,694,000 316,390,000 315,540,000 319,820,000 324,100,000 328,397,000 287,914,000 291,650,000 295,387,000 299,123,000 293,532,000 297,041,000 300,055,000 303,223,000 236,289,000 239,155,000 242,021,000 244,887,000 247,754,000 250,620,000 253,486,000 256,323,000 40,617,000 41,218,000                                                               
        other non-current assets
      17,425,000 17,197,000 16,062,000 17,449,000 17,233,000 17,044,000 17,757,000 19,444,000 19,204,000 18,808,000 7,685,000 7,649,000 7,615,000 7,654,000 4,325,000 4,502,000 4,488,000 4,455,000 4,078,000 3,305,000 3,310,000 3,250,000 153,000 153,000 172,000 183,000 202,000 211,000                                                               
        total assets
      2,783,672,000 2,633,831,000 2,562,267,000 2,160,890,000 2,034,539,000 2,016,774,000 2,023,585,000 1,964,550,000 1,817,496,000 1,777,184,000 1,723,805,000 1,567,358,000 1,431,128,000 1,441,620,000 1,503,333,000 1,353,530,000 1,242,733,000 1,230,996,000 1,064,317,000 1,027,190,000 947,216,000 952,694,000 1,022,512,000 1,017,510,000 976,395,000 961,940,000 521,969,000 499,895,000 463,514,000 482,573,000 494,164,000 470,685,000 439,035,000 463,298,000 473,035,000 455,453,000 304,576,000 301,823,000 328,215,000 330,962,000 284,007,000 267,284,000 290,674,000 307,318,000 301,001,000 306,451,000 335,068,000 329,714,000 280,821,000 273,018,000 354,112,000 329,069,000 316,147,000 331,510,000 375,281,000 352,882,000 308,863,000 303,831,000 404,034,000 375,888,000 366,052,000 367,131,000 371,730,000 379,784,000 378,411,000 385,741,000 308,871,000 324,170,000 295,954,000 289,615,000  293,617,000 267,649,000 274,515,000 187,107,000 178,552,000 168,361,000 167,772,000 171,293,000 152,079,000 144,650,000 118,455,000 122,789,000 108,709,000 96,658,000 89,544,000     
        liabilities and stockholders’ equity
                                                                                                
        current liabilities:
                                                                                                
        accounts payable
      234,475,000 226,810,000 198,323,000 159,259,000 128,885,000 130,420,000 160,199,000 163,841,000 135,426,000 145,968,000 150,218,000 140,620,000 119,450,000 121,887,000 192,902,000 164,506,000 143,400,000 144,982,000 142,740,000 137,934,000 111,131,000 95,201,000 127,336,000 131,098,000 123,172,000 137,593,000 110,624,000 101,342,000 81,870,000 99,426,000 106,271,000 96,384,000 85,123,000 97,457,000 100,565,000 89,468,000 71,448,000 67,097,000 76,861,000 79,853,000 63,389,000 58,959,000 59,502,000 75,760,000 71,462,000 66,792,000 81,097,000 90,157,000 62,006,000 61,599,000 79,113,000 55,822,000 54,051,000 47,796,000 65,781,000 62,272,000 44,826,000 34,428,000 51,379,000 35,449,000 33,358,000 35,432,000 42,509,000 34,554,000 32,596,000 32,619,000 27,475,000 38,737,000 26,047,000 26,111,000 30,488,000 30,739,000 21,910,000 27,190,000 22,257,000 24,073,000 23,177,000 17,373,000 19,478,000 18,351,000 19,720,000 20,416,000 29,245,000 24,467,000 27,012,000 18,189,000 18,887,000 16,510,000 17,664,000 14,439,000 
        contract liabilities
      695,617,000 652,357,000 616,273,000 553,171,000 534,388,000 508,846,000 563,531,000 556,134,000 485,049,000 444,160,000 432,213,000 335,877,000 242,326,000 239,297,000 224,739,000 161,961,000 116,182,000 127,932,000 141,236,000 141,236,000 111,232,000 114,019,000                                                                     
        current maturities of long-term debt
      15,138,000 15,146,000 15,154,000 15,162,000 26,419,000 26,423,000 26,425,000 26,428,000 26,469,000 26,520,000 35,142,000 35,062,000 35,059,000 32,610,000 29,705,000 26,273,000 30,368,000 28,230,000 21,239,000 23,186,000 59,962,000 77,434,000 57,476,000 54,979,000 50,211,000 42,473,000 12,238,000 12,128,000 393,000 2,899,000 3,014,000 826,000 1,057,000 3,978,000 986,000 1,039,000 2,939,000 3,845,000 4,653,000 4,854,000 4,857,000 5,192,000 5,171,000 5,019,000 966,000 965,000 964,000 478,000 194,000 134,000 220,000 232,000 207,000 73,000 73,000 573,000 573,000 573,000 573,000 73,000 73,000 73,000    73,000    73,000                     
        current portion of long-term lease obligations
      16,200,000 18,679,000 20,980,000 18,202,000 19,333,000 20,498,000 19,531,000 19,831,000 19,143,000 19,641,000 18,403,000 18,129,000 17,376,000 19,715,000 17,418,000 12,582,000 10,117,000 8,841,000 8,314,000 7,942,000 7,627,000 7,588,000 7,624,000 7,423,000 7,410,000 7,095,000 7,492,000 7,059,000 7,009,000                                                              
        accrued compensation
      51,218,000 62,657,000 62,033,000 36,596,000 24,918,000 36,774,000 43,198,000 29,768,000 19,831,000 27,758,000 35,506,000 25,335,000 16,904,000 24,136,000 37,448,000 33,044,000 25,815,000 22,803,000 34,801,000 27,134,000 22,124,000 18,013,000 24,328,000 19,075,000 14,187,000 13,727,000 14,576,000 12,148,000 10,500,000 9,448,000 14,866,000 13,096,000 9,011,000 9,054,000 14,566,000 12,022,000 7,885,000 5,322,000 10,412,000 10,855,000 9,395,000 5,977,000 12,600,000 10,274,000 8,728,000 5,169,000 10,985,000 8,943,000 6,809,000 5,755,000 7,810,000 6,350,000 4,950,000 4,909,000 9,701,000 7,419,000 5,385,000 5,329,000 9,051,000 7,180,000 6,206,000 6,920,000                             
        other current liabilities
      71,102,000 46,805,000 54,030,000 13,841,000 22,826,000 18,997,000 26,152,000 24,854,000 19,799,000 14,121,000 14,355,000 12,742,000 13,574,000 8,966,000 10,096,000 9,023,000 13,632,000 18,972,000 9,088,000 8,810,000 9,910,000 9,629,000 11,368,000 10,589,000 10,403,000 6,393,000 6,982,000 5,183,000 6,300,000 4,676,000 6,275,000 7,063,000 8,519,000 9,348,000 15,188,000 7,699,000 6,745,000 6,150,000 5,545,000 4,869,000 4,572,000 3,896,000 5,222,000 5,304,000 4,727,000 4,207,000 4,304,000 4,015,000 3,330,000 4,504,000 3,980,000 4,095,000 2,700,000 2,691,000 5,006,000 4,367,000 2,250,000 8,359,000 6,556,000 10,737,000                               
        total current liabilities
      1,083,750,000 1,022,454,000 966,793,000 796,231,000 756,769,000 741,958,000 839,036,000 820,856,000 705,717,000 678,168,000 685,837,000 567,765,000 444,689,000 446,611,000 512,308,000 407,389,000 339,514,000 351,760,000 357,724,000 346,242,000 322,246,000 321,884,000 357,369,000 337,692,000 286,332,000 293,504,000 213,659,000 198,532,000 162,010,000 179,174,000 194,669,000 175,761,000 158,462,000 182,292,000 194,953,000 187,323,000 151,778,000 146,592,000 159,430,000 157,372,000 121,363,000 104,647,000 115,592,000 131,521,000 120,242,000 104,650,000 127,739,000 135,876,000 102,018,000 105,799,000 122,717,000 91,457,000 78,124,000 77,274,000 131,129,000 120,873,000 74,114,000 69,285,000 91,887,000 72,704,000 67,857,000 69,051,000 87,721,000 77,754,000 76,653,000 75,310,000 62,756,000 78,126,000 62,233,000 57,599,000  73,127,000 54,327,000 60,887,000 51,631,000 53,008,000 52,130,000 44,534,000 53,936,000 44,001,000 48,361,000 55,273,000 56,171,000 46,892,000 44,518,000 32,324,000 30,257,000 25,514,000 30,946,000 33,711,000 
        long-term debt
      272,321,000 275,903,000 279,479,000 283,050,000 283,603,000 289,898,000 296,185,000 302,459,000 308,721,000 314,996,000 321,589,000 329,284,000 365,548,000 398,735,000 407,090,000 415,998,000 417,331,000 428,588,000 299,923,000 303,531,000 279,175,000 291,249,000 335,237,000 367,028,000 408,828,000 390,627,000 62,489,000 66,497,000 76,923,000 79,117,000 78,424,000 85,749,000 85,106,000 86,160,000 88,619,000 88,125,000 1,358,000 1,549,000 6,952,000 13,044,000 27,273,000 16,107,000 30,509,000 33,260,000 33,477,000 37,021,000 36,810,000 19,622,000 21,084,000 8,331,000 20,568,000 29,469,000 11,892,000 24,201,000 10,208,000 268,000 245,000 263,000 8,281,000 299,000 318,000 336,000 355,000 25,373,000 30,391,000 40,409,000 40,428,000 50,446,000 50,464,000 55,483,000 60,501,000 60,519,000 60,534,000 65,556,000 30,566,000 25,597,000 20,628,000 30,659,000 28,000,000 24,000,000 16,000,000 13,788,000 15,742,000 13,474,000 6,668,000 13,329,000 15,802,000 12,075,000 11,054,000 6,568,000 
        long-term lease obligations
      38,527,000 40,186,000 43,588,000 26,729,000 29,334,000 32,455,000 35,445,000 39,180,000 36,180,000 37,722,000 40,204,000 43,087,000 45,164,000 40,103,000 43,121,000 34,103,000 27,326,000 15,831,000 9,306,000 8,783,000 8,202,000 8,958,000 9,668,000 9,733,000 7,465,000 6,976,000 7,191,000 8,030,000 8,466,000                                                              
        deferred tax liability
      125,055,000 123,145,000 118,616,000 114,774,000 110,010,000 109,360,000 82,894,000 80,304,000 78,303,000 76,764,000 61,847,000 58,449,000 54,387,000 51,659,000 40,311,000 29,871,000 20,758,000 14,656,000 10,287,000 3,956,000                                   368,000 368,000   22,524,000 20,442,000 19,913,000 18,591,000 17,456,000 15,874,000 15,741,000 15,369,000 15,051,000 14,408,000 12,249,000 11,117,000 9,288,000 5,593,000 4,281,000 3,098,000 2,975,000 1,615,000 1,615,000 1,588,000 1,325,000            
        other long-term liabilities
      68,750,000 65,708,000 68,796,000 28,733,000 27,896,000 16,625,000 15,666,000 16,926,000 17,261,000 16,573,000 6,242,000 5,563,000 4,666,000 5,116,000 4,754,000 4,580,000 4,410,000 4,819,000 9,218,000 9,420,000 10,285,000 10,584,000 10,124,000 8,221,000 5,654,000 619,000 1,088,000 1,101,000 1,115,000 1,229,000 1,230,000 1,246,000 1,252,000 1,271,000 595,000 473,000 419,000 362,000 911,000 389,000 355,000 338,000 328,000 323,000 616,000 753,000 734,000 812,000 1,126,000 2,105,000 2,245,000 2,482,000 2,625,000 2,728,000 2,498,000 2,417,000 2,398,000 2,597,000 2,657,000 177,000                               
        total liabilities
      1,588,403,000 1,527,396,000 1,477,272,000 1,249,517,000 1,207,612,000 1,190,296,000 1,292,643,000 1,283,536,000 1,165,279,000 1,153,331,000 1,138,331,000 1,025,444,000 932,873,000 963,821,000 1,063,446,000 946,155,000 865,093,000 870,769,000 741,224,000 728,420,000 671,523,000 683,965,000 763,196,000 776,425,000 757,465,000 740,729,000 338,710,000 325,202,000 297,237,000                                                              
        commitments and contingencies
                                                                                                
        stockholders’ equity:
                                                                                                
        common stock, par value 0.01 per share...
      315,000 315,000 315,000 312,000 312,000 312,000 312,000 312,000 311,000 309,000 308,000 308,000 308,000 306,000 303,000 303,000 302,000 298,000 288,000 286,000 286,000 283,000 283,000 283,000 283,000 283,000 271,000 271,000 271,000 271,000 271,000 271,000 270,000 271,000 270,000 270,000 251,000 250,000 250,000 250,000 198,000 198,000 196,000 195,000 189,000 188,000 188,000 188,000 167,000 167,000 167,000 166,000 166,000 165,000 165,000 163,000 163,000 163,000 164,000 165,000 165,000  162,000 161,000 160,000  132,000 132,000 131,000 131,000 131,000 131,000 131,000 130,000    109,000 108,000 108,000 105,000 82,000 81,000 77,000  74,000 53,000 53,000 53,000 51,000 
        additional paid in capital
      367,469,000 366,101,000 369,505,000 287,596,000 283,050,000 288,395,000 295,831,000 291,401,000 288,173,000 293,570,000 295,178,000 291,757,000 288,328,000 287,914,000 281,576,000 279,120,000 276,597,000 280,274,000 255,313,000 253,467,000 251,335,000 256,423,000 254,860,000 253,820,000 250,689,000 251,019,000 234,309,000 233,559,000 233,502,000 233,795,000 233,056,000 232,265,000 231,607,000 231,183,000 231,848,000 231,321,000 209,555,000 208,922,000 208,435,000 208,031,000 188,534,000 188,147,000 206,639,000 205,994,000 205,672,000 205,697,000 205,534,000 205,343,000 191,160,000 190,926,000 197,168,000 197,573,000 197,353,000 197,067,000 196,495,000 196,325,000 196,240,000 196,143,000 197,463,000 198,749,000 198,839,000 198,849,000    197,898,000    150,223,000    147,786,000    114,630,000             
        treasury stock
      -146,846,000 -130,547,000 -103,745,000 -99,126,000 -99,918,000 -63,121,000 -48,901,000 -29,006,000              -1,445,000 -2,651,000 -3,435,000 -4,247,000 -6,142,000 -6,581,000 -6,688,000 -7,182,000 -4,731,000                             -1,432,000 -1,362,000 -62,000                        -1,000 -1,000 -1,000 -1,000 -1,000 -1,000 
        retained earnings
      968,617,000 872,648,000 785,051,000 692,963,000 621,972,000 582,495,000 469,282,000 407,961,000 356,082,000 325,034,000 284,861,000 245,508,000 206,028,000 186,379,000 154,654,000 125,131,000 99,170,000 79,918,000 69,010,000 47,884,000 27,828,000 17,273,000 11,449,000                           -62,317,000 -9,906,000 -9,735,000 5,786,000 12,220,000 12,047,000 11,818,000 9,310,000 16,509,000 59,101,000 55,808,000 51,597,000 51,553,000 42,181,000 38,685,000 34,318,000 32,708,000 32,034,000 23,615,000  8,762,000 4,930,000                    
        total sterling stockholders’ equity
      1,189,555,000 1,108,517,000 1,051,126,000 881,745,000 805,416,000 808,081,000 716,524,000 670,668,000 644,566,000 618,913,000 580,347,000 537,573,000 494,664,000 474,599,000 437,111,000 405,233,000 375,909,000 358,767,000 321,688,000 297,996,000 275,080,000 267,270,000 257,628,000 239,637,000 217,537,000 219,918,000 180,665,000 171,851,000 163,472,000                                  241,692,000                            
        noncontrolling interests
      5,714,000 -2,082,000 33,869,000 29,628,000 21,511,000 18,397,000 14,418,000 10,346,000 7,651,000 4,940,000 5,127,000 4,341,000 3,591,000 3,200,000 2,776,000 2,142,000 1,731,000 1,460,000 1,405,000 774,000 613,000 1,459,000 1,688,000 1,448,000 1,393,000 1,293,000 2,594,000 2,842,000 2,805,000 7,859,000 6,915,000 7,014,000 6,047,000 4,856,000 3,622,000 1,928,000 1,027,000 656,000 1,161,000 421,000 -99,000 -91,000 7,008,000 6,850,000 7,754,000 7,462,000 6,145,000 4,427,000 3,182,000 3,901,000 3,585,000 2,700,000 2,624,000 2,438,000 2,739,000 1,783,000 1,509,000 1,527,000 1,306,000                                
        total stockholders’ equity
      1,195,269,000 1,106,435,000 1,084,995,000 911,373,000 826,927,000 826,478,000 730,942,000 681,014,000 652,217,000 623,853,000 585,474,000 541,914,000 498,255,000 477,799,000 439,887,000 407,375,000 377,640,000 360,227,000 323,093,000 298,770,000 275,693,000 268,729,000 259,316,000 241,085,000 218,930,000 221,211,000 183,259,000 174,693,000 166,277,000                                         159,116,000  147,315,000 141,927,000 138,612,000 101,935,000 98,332,000 93,988,000 90,991,000 87,343,000 83,362,000 79,542,000 48,612,000 43,202,000 40,039,000 36,604,000 35,208,000 19,900,000 19,115,000 17,395,000 16,636,000 
        total liabilities and stockholders’ equity
      2,783,672,000 2,633,831,000 2,562,267,000 2,160,890,000 2,034,539,000 2,016,774,000 2,023,585,000 1,964,550,000 1,817,496,000 1,777,184,000 1,723,805,000 1,567,358,000 1,431,128,000 1,441,620,000 1,503,333,000 1,353,530,000 1,242,733,000 1,230,996,000 1,064,317,000 1,027,190,000 947,216,000 952,694,000 1,022,512,000 1,017,510,000 976,395,000 961,940,000 521,969,000 499,895,000 463,514,000                               375,888,000 366,052,000 367,131,000 371,730,000 379,784,000 378,411,000 385,741,000 308,871,000 324,170,000 295,954,000 289,615,000  293,617,000 267,649,000 274,515,000 187,107,000 178,552,000 168,361,000 167,772,000 171,293,000 152,079,000 144,650,000          
        receivable from affiliate
         2,540,000  32,054,000                                                                                     
        members’ interest subject to mandatory redemption and undistributed earnings
            23,417,000 23,811,000 19,097,000 29,108,000 22,612,000 21,296,000 18,419,000 21,597,000 55,862,000 54,214,000 55,754,000 55,115,000 54,766,000 56,488,000 51,615,000 51,290,000 50,798,000 53,751,000 49,186,000 49,003,000 51,272,000 48,831,000 47,132,000 49,343,000    47,386,000   44,183,000 45,230,000    50,438,000                                                 
        current assets of discontinued operations
                                                                                                
        non-current assets of discontinued operations
                                                                                                
        current liabilities of discontinued operations
                                                                                                
        long-term liabilities of discontinued operations
                                                                                                
        accumulated other comprehensive loss
                      -160,000 -1,723,000 -2,923,000 -3,641,000 -4,369,000 -5,264,000 -6,313,000 -7,323,000 -7,270,000 -209,000                  -18,000 -59,000                                              
        accumulated other comprehensive gain
                    578,000 679,000                                                                           
        deferred tax asset
                          3,410,000 7,817,000 16,589,000 21,604,000 27,149,000 26,012,000                         1,928,000 588,000 1,786,000 1,803,000 793,000 666,000 521,000 1,302,000 78,000 100,000 117,000 82,000 135,000 80,000 161,000 127,000   177,000 1,203,000 1,006,000 1,088,000 1,088,000 1,088,000 1,038,000 1,246,000 3,002,000 4,297,000 4,743,000 5,240,000 5,240,000 4,224,000 4,824,000 4,824,000 3,947,000 3,986,000 1,452,000 1,452,000 1,452,000 1,452,000 
        income taxes payable
                        306,000  260,000  2,251,000 3,594,000 1,656,000 1,212,000 214,000 101,000 340,000 318,000 279,000 88,000 63,000 81,000 280,000 179,000 105,000 78,000 63,000 27,000 67,000 67,000 48,000 27,000  1,868,000 1,868,000 2,036,000 2,036,000 2,035,000     214,000 5,000 66,000 2,013,000 156,000 241,000 1,506,000 1,493,000  638,000 443,000 351,000 23,000 867,000 597,000 547,000  1,246,000                   
        accounts receivable, including retainage
                            271,342,000 269,406,000 221,268,000 248,247,000 160,512,000 157,813,000                                                               
        costs and estimated earnings in excess of billings
                            55,310,000 52,068,000 54,791,000 42,555,000 67,602,000 53,896,000                                                        4,350,000 5,756,000 5,884,000    1,281,000 
        billings in excess of costs and estimated earnings
                            126,986,000 110,934,000 79,293,000 85,011,000 61,533,000 60,571,000                                                               
        retained deficit
                             -3,708,000 -21,918,000 -25,033,000 -47,334,000 -55,291,000 -63,119,000 -64,934,000 -70,544,000 -79,458,000 -87,632,000 -90,121,000 -93,201,000 -100,333,000 -103,995,000 -101,738,000 -95,390,000 -97,805,000 -99,828,000 -92,500,000 -91,376,000 -91,632,000 -89,090,000 -72,098,000 -64,846,000 -60,911,000 -62,112,000                                          
        deferred taxes
                                3,011,000 2,211,000 1,591,000 1,450,000 1,299,000                                                            
        inventory
                                2,386,000 3,252,000                                                               
        preferred stock, par value 0.01 per share...
                                                                                          77,000      
        receivables, including retainage
                                  147,001,000 145,026,000 160,247,000 164,465,000 140,877,000 133,931,000                                                         
        costs and estimated earnings in excess of billings on uncompleted contracts
                                  44,133,000 41,542,000 40,275,000 36,388,000 40,013,000 37,112,000 43,384,000 40,588,000 34,475,000 32,705,000 31,989,000 35,391,000 28,188,000 26,905,000 23,287,000 25,503,000 25,827,000 33,403,000 31,745,000 31,985,000 18,751,000 11,684,000 31,481,000 23,327,000 34,331,000 20,592,000 17,876,000 16,131,000 17,822,000 16,509,000 25,660,000 19,440,000 14,709,000 10,058,000 7,484,000 6,658,000  5,973,000 6,196,000 9,059,000 9,128,000 7,508,000 7,991,000  5,665,000 3,747,000 7,247,000 6,561,000 4,441,000 3,157,000 3,299,000 3,065,000 2,346,000 2,199,000 3,296,000    5,161,000 3,007,000 2,241,000  
        inventories
                                  2,699,000 3,159,000 3,140,000 1,613,000 1,863,000 4,621,000 2,093,000 3,521,000 3,757,000 3,708,000 4,000,000 3,725,000 2,930,000 2,535,000 2,580,000 5,767,000 5,515,000 7,401,000 6,618,000 5,587,000 6,030,000 6,189,000 5,375,000 4,603,000 5,375,000 3,731,000 3,945,000 3,547,000 3,398,000 1,922,000 1,910,000 1,730,000 1,598,000 1,479,000 1,419,000 1,292,000 1,233,000 1,229,000 1,224,000 1,324,000 1,279,000 1,041,000 1,099,000 1,147,000 1,294,000 1,239,000 1,047,000 1,037,000 1,024,000 965,000      5,479,000 6,572,000 4,525,000 4,789,000 4,835,000 5,389,000 4,842,000 
        intangibles
                                  41,818,000 42,418,000 43,018,000 43,618,000 44,218,000 44,818,000 45,200,000 39,490,000                                                       
        other assets
                                  246,000 309,000 343,000 227,000 265,000 317,000 3,301,000 2,968,000 2,968,000 2,968,000 2,968,000 2,968,000 2,968,000 4,068,000 4,150,000 9,027,000 6,345,000 7,559,000 8,356,000 8,921,000 9,475,000 10,030,000 12,405,000 5,591,000 5,827,000 6,651,000 4,742,000 6,178,000 5,435,000 2,329,000 1,237,000 1,320,000 1,402,000 1,376,000 1,445,000 1,605,000 1,583,000 1,526,000 1,424,000 1,485,000 1,550,000 1,668,000 1,732,000 1,795,000 1,860,000 1,944,000 629,000 666,000 676,000 687,000 458,000 458,000 520,000 534,000 754,000 770,000 781,000 883,000 588,000 613,000 638,000 663,000 
        billings in excess of costs and estimated earnings on uncompleted contracts
                                  55,598,000 62,407,000 63,964,000 58,304,000 54,689,000 62,374,000 63,368,000 76,916,000 62,656,000 64,100,000 61,896,000 56,914,000 39,083,000 30,556,000 33,049,000 35,137,000 34,359,000 25,649,000 28,521,000 30,247,000 27,447,000 31,576,000 31,070,000 24,441,000 12,870,000 18,918,000 27,031,000 24,437,000 21,014,000 18,583,000 15,967,000 19,024,000 17,847,000 17,807,000 31,229,000 31,146,000 33,380,000 31,132,000 25,693,000 29,018,000 28,174,000  25,120,000 33,349,000 23,914,000  21,979,000 24,796,000 24,314,000  20,412,000 11,954,000       4,749,000 4,654,000 7,513,000  
        liabilities and equity
                                                                                                
        long-term liabilities:
                                                                                                
        total long-term liabilities
                                   131,139,000 129,797,000 134,832,000 130,281,000 134,817,000 135,543,000 134,944,000 45,960,000 47,141,000 54,329,000 62,693,000 73,839,000 66,883,000 52,615,000 54,408,000 56,293,000 60,653,000 60,381,000 44,733,000 46,379,000 34,425,000 22,813,000 31,951,000 14,517,000 26,929,000 13,074,000 3,053,000 2,643,000 2,860,000 33,462,000 20,918,000 20,231,000 18,927,000 17,811,000 41,247,000 46,132,000 55,778,000 63,047,000 71,635,000 68,957,000                      
        equity:
                                                                                                
        sterling stockholders’ equity:
                                                                                                
        total sterling common stockholders’ equity
                                   164,401,000 162,783,000 153,078,000 144,245,000 141,333,000 138,917,000 131,258,000 105,811,000 107,434,000 113,295,000 110,476,000 88,904,000 95,845,000 115,459,000 114,539,000 116,712,000 133,686,000 140,803,000 144,678,000 129,242,000 128,893,000 187,238,000 187,803,000 203,722,000 210,148,000 209,653,000 208,804,000 206,251,000 213,311,000 255,436,000 253,363,000 250,436,000 250,429,000  236,777,000 232,542,000 230,766,000 183,068,000 174,409,000 164,764,000                      
        total equity
                                   172,260,000 169,698,000 160,092,000 150,292,000 146,189,000 142,539,000 133,186,000 106,838,000 108,090,000 114,456,000 110,897,000 88,805,000 95,754,000 122,467,000 121,389,000 124,466,000 141,148,000 146,948,000 149,105,000 132,424,000 132,794,000 190,823,000 190,503,000 206,346,000 212,586,000 212,392,000 210,587,000 207,760,000 214,838,000 256,742,000                                
        total liabilities and equity
                                   482,573,000 494,164,000 470,685,000 439,035,000 463,298,000 473,035,000 455,453,000 304,576,000 301,823,000 328,215,000 330,962,000 284,007,000 267,284,000 290,674,000 307,318,000 301,001,000 306,451,000 335,068,000 329,714,000 280,821,000 273,018,000 354,112,000 329,069,000 316,147,000 331,510,000 375,281,000 352,882,000 308,863,000 303,831,000 404,034,000                                
        members' interest subject to mandatory redemption and undistributed earnings
                                    48,844,000 47,837,000 43,923,000  46,329,000                                                        
        contracts receivable, including retainage
                                        149,052,000 137,913,000 91,089,000 84,132,000 105,415,000 106,595,000 94,758,000 82,112,000 99,666,000 100,563,000 94,608,000 78,896,000 105,302,000 104,609,000 78,345,000 77,245,000 90,663,000 87,693,000 64,391,000 70,815,000 120,478,000 88,788,000 72,893,000 74,875,000 92,909,000 77,635,000 64,898,000 70,301,000 75,824,000 72,753,000 72,954,000 80,283,000 66,387,000 74,802,000 70,141,000 60,582,000 67,241,000 63,617,000 53,137,000 54,394,000 52,498,000                
        member’s interest subject to mandatory redemption and undistributed earnings
                                         46,346,000   46,466,000 49,260,000 46,211,000  21,778,000 20,825,000 22,200,000 22,879,000 22,837,000 24,299,000 24,169,000 23,989,000                                         
        current obligation for noncontrolling owners’ interest in subsidiaries and joint ventures
                                                      196,000 196,000 524,000 517,000 3,346,000 2,887,000                                     
        accumulated other comprehensive income
                                                   -101,000 -73,000 58,000 27,000 117,000 -191,000 -201,000 417,000 696,000 946,000 498,000 538,000 496,000 140,000 3,000 -103,000 -137,000 324,000 -404,000                           
        short-term investments
                                                        21,016,000 21,000,000 21,562,000 49,211,000 53,454,000 49,676,000 43,582,000 44,855,000 49,824,000 60,503,000 65,752,000 35,752,000 68,932,000 60,204,000 48,634,000 39,319,000 41,231,000 25,487,000 19,724,000 24,379,000 17,383,000   54,000 32,630,000 29,706,000 27,822,000 26,169,000             
        long-term deferred tax, asset
                                                           2,973,000                                     
        obligations for noncontrolling owners’ interests in subsidiaries and joint ventures
                                                        17,759,000 15,158,000 17,160,000 14,721,000                                     
        long-term deferred tax asset
                                                        14,198,000 14,197,000 4,355,000                                      
        current obligation for noncontrolling owners’ interests in subsidiaries and joint ventures
                                                            23,323,000 21,800,000                                   
        obligation for noncontrolling owners’ interests in subsidiaries and joint ventures
                                                            18,686,000 18,369,000 24,346,000                                  
        deposits and other current assets
                                                              3,876,000 2,132,000 1,536,000 2,005,000 2,363,000 2,472,000 5,060,000 5,672,000 5,875,000 5,510,000 1,257,000 1,602,000 2,996,000 2,704,000 1,278,000 1,392,000 1,738,000                  
        obligations for noncontrolling owners' interests in subsidiaries and joint ventures
                                                               16,848,000                                 
        income tax receivable
                                                                1,366,000 1,131,000 2,866,000                              
        liability for put exercised by noncontrolling owner
                                                                8,205,000                                
        obligation for noncontrolling owners' interests in subsidiaries and joint ventures
                                                                21,943,000                                
        commitments and contingencies:
                                                                                                
        noncontrolling owners' interests in subsidiaries and joint ventures
                                                                 28,903,000 27,528,000 28,724,000                             
        other accrued expenses
                                                                  8,867,000 7,326,000 5,626,000 11,343,000 10,161,000 11,135,000 9,492,000 9,431,000 7,342,000 7,741,000 9,924,000 7,720,000 8,413,000 8,250,000 7,272,000 4,016,000 4,516,000 5,502,000 6,761,000 5,122,000 3,567,000 4,265,000 4,092,000 4,183,000 3,790,000 2,291,000 3,993,000 2,042,000 2,794,000 3,322,000 
        1,000,000 shares, none issued
                                                                                                
        19,000,000 shares, 16,468,369 and 16,081,878 shares issued
                                                                   164,000                             
        current maturities of long-term obligations
                                                                    73,000 73,000 73,000  73,000 73,000 73,000                  150,000 339,000 521,000 708,000 
        accrued payroll and related burden
                                                                    8,284,000                            
        non-controlling owners' interests in subsidiaries and joint ventures
                                                                    24,506,000 24,006,000                           
        additional paid-in capital
                                                                    199,025,000 198,335,000 198,064,000  150,902,000 150,662,000 150,373,000  148,700,000 148,231,000 147,983,000  115,821,000 115,662,000 115,116,000  111,361,000 110,990,000 110,536,000 83,779,000 83,642,000 82,181,000 81,201,000 80,688,000 67,423,000 66,971,000 66,881,000 66,400,000 
        costs and estimated earnings in excess of billings on uncompleted ontracts
                                                                      5,654,000                          
        equity in construction joint ventures
                                                                      2,671,000 2,341,000                         
        non-controlling owners' interest in subsidiaries
                                                                      23,084,000                          
        non-controlling owners' interests in subsidiaries
                                                                       23,887,000                         
        19,000,000 shares, 16,081,878 and 13,184,638 shares issued and outstanding
                                                                       160,000                         
        put liability related to and noncontrolling owner's interest in subsidiary
                                                                        7,568,000 6,781,000 6,244,000                      
        retained earnings including accumulated other comprehensive loss of 67 in 2009
                                                                          14,260,000                      
        billings in excess of cost and estimated earnings on uncompleted contracts
                                                                           23,127,000    25,349,000    21,536,000   13,985,000 13,635,000 12,017,000        
        minority interest in rhb
                                                                           6,300,000   6,580,000 6,362,000                 
        long-term liabilities: - sum
                                                                           72,900,000   71,395,000 75,016,000                 
        prepaid federal income tax
                                                                            1,075,000                    
        current maturities of long term obligations
                                                                            74,000 73,000 90,000  123,000 123,000 123,000 123,000 123,000 123,000 123,000 123,000 123,000 153,000 156,000 149,000     
        minority interest in subsidiary
                                                                            7,557,000 7,063,000                   
        costs and estimated earnings in excess of billings on uncompletedcontracts
                                                                             5,904,000                   
        accumulated deficit
                                                                             -1,047,000 -6,187,000 -9,304,000 -13,996,000 -17,440,000 -21,237,000 -23,748,000 -24,126,000 -27,736,000 -31,099,000 -34,292,000 -39,385,000 -42,164,000 -44,565,000 -45,392,000    -49,675,000 
        note receivable, current
                                                                               205,000    300,000             
        other
                                                                               1,574,000 1,968,000 1,952,000 2,208,000 973,000 1,326,000 1,412,000 1,045,000 1,056,000 847,000 650,000 1,453,000 1,554,000 1,159,000 2,004,000 1,289,000 1,436,000 
        note receivable, long term
                                                                                   325,000             
        current maturities of long term debt
                                                                               98,000                 
        note receivable, long-term
                                                                                31,000 116,000 201,000              
        long-term obligations:
                                                                                                
        long-term obligations: - sum
                                                                                33,541,000 27,212,000 22,243,000 32,247,000 30,014,000 24,716,000 16,747,000 14,570,000 23,416,000 21,778,000 15,536,000 22,012,000 34,745,000 25,713,000 24,557,000 19,958,000 
        common stock, 0.01 par value...
                                                                                110,000 110,000               
        preferred stock, 0.01 par value...
                                                                                                
        contracts receivable
                                                                                 50,816,000 50,317,000 42,805,000 53,198,000 44,397,000 38,675,000 34,912,000 40,762,000 38,184,000 31,002,000 26,250,000 33,435,000 25,301,000 26,559,000 26,504,000 
        10,937,268 and 10,875,438 shares issued
                                                                                  109,000              
        accounts receivable, other
                                                                                   276,000             
        assets of discontinued operations held for sale
                                                                                    8,158,000 9,366,000 11,699,000 8,969,000 8,823,000        
        short-term debt, related parties
                                                                                       8,449,000 2,112,000 2,112,000 2,139,000 3,593,000   1,810,000  
        liabilities of discontinued operations held for sale
                                                                                    7,162,000 8,451,000 10,966,000 8,385,000 8,582,000        
        short-term investments, available for sale
                                                                                    22,585,000 20,538,000           
        other long-term obligations
                                                                                    689,000 716,000 747,000 782,000 809,000 911,000 947,000 928,000 964,000 1,001,000 1,017,000  
        long-term debt, related parties
                                                                                        6,865,000 7,393,000 7,921,000 7,755,000 7,219,000 7,059,000 6,908,000 6,758,000 
        deferred compensation expense
                                                                                       -957,000 -1,136,000 -55,000 -108,000 -161,000 -507,000 -124,000 -131,000 -139,000 
        prepaid taxes
                                                                                        80,000 80,000       
        trade accounts receivable, less allowance of 1,058 and 1,015, respectively
                                                                                         3,072,000       
        billings in excess of cost and estimated earnings
                                                                                         11,187,000 7,088,000 4,477,000    9,742,000 
        short-term debt
                                                                                         4,790,000 4,333,000 3,625,000    2,660,000 
        trade accounts receivable, less allowance of 1,045 and 1,015, respectively
                                                                                          4,145,000      
        trade accounts receivable, less allowance of 1,015 and 1,013, respectively
                                                                                           2,361,000     
        put liability
                                                                                             5,578,000 5,578,000 5,578,000 
        minority interest
                                                                                             5,882,000 5,440,000 5,273,000 
        trade accounts receivable, less allowance of 971 and 1,013 respectively
                                                                                            2,680,000    
        property and equipment, at cost
                                                                                            33,616,000 32,496,000 31,773,000 31,991,000 
        less accumulated depreciation
                                                                                            -12,285,000 -11,270,000 -10,114,000 -9,611,000 
        accrued interest
                                                                                            5,000 659,000 644,000 530,000 
        short term debt
                                                                                                
        current maturities of long-term debt, related parties
                                                                                            1,520,000    
        current maturities of obligations related to the put
                                                                                            953,000    
        long-term obligations related to the put
                                                                                            10,760,000    
        deficit
                                                                                            -47,068,000 -47,784,000 -49,407,000  
        trade accounts receivable, less allowance of 1,043 and 1,013 respectively
                                                                                             2,741,000   
        current maturities of long-term obligations, related party
                                                                                             1,310,000   
        trade accounts receivable, less allowance of 1,023 and 1,013 respectively
                                                                                              4,095,000  
        goodwill,
                                                                                              7,809,000  
        trade accounts receivable, less allowance of 1,013 and 841, respectively
                                                                                               1,919,000 
        short term debt, related parties
                                                                                               2,310,000 
        other long term obligations
                                                                                               1,054,000 
      Cashflow Statements:
      Quarterly
      Annual
        Unit: USD2026-03-31 2025-09-30 2025-06-30 2025-03-31 2024-12-31 2024-09-30 2024-06-30 2024-03-31 2023-12-31 2023-09-30 2023-06-30 2023-03-31 2022-12-31 2022-09-30 2022-06-30 2022-03-31 2021-12-31 2021-09-30 2021-06-30 2021-03-31 2020-12-31 2020-09-30 2020-06-30 2020-03-31 2019-12-31 2019-09-30 2019-06-30 2019-03-31 2018-12-31 2018-09-30 2018-06-30 2018-03-31 2017-12-31 2017-09-30 2017-06-30 2017-03-31 2016-12-31 2016-09-30 2016-06-30 2016-03-31 2015-12-31 2015-09-30 2015-06-30 2015-03-31 2014-12-31 2014-09-30 2014-06-30 2014-03-31 2013-12-31 2013-09-30 2013-06-30 2013-03-31 2012-12-31 2012-09-30 2012-06-30 2012-03-31 2011-12-31 2011-09-30 2011-06-30 2011-03-31 2010-12-31 2010-09-30 2010-06-30 2010-03-31 2009-12-31 2009-09-30 2009-06-30 2009-03-31 2008-12-31 2008-09-30 2008-06-30 2008-03-31 2007-12-31 2007-09-30 2007-06-30 2007-03-31 2006-12-31 2006-06-30 2006-03-31 2005-12-31 2005-09-30 2005-06-30 2005-03-31 2004-12-31 2004-06-30 2004-03-31 
                                                                                              
          cash flows from operating activities:
                                                                                              
          net income
        103,765,000 96,329,000 79,108,000 42,591,000 117,192,000 65,393,000 54,574,000 33,759,000 42,436,000 40,139,000 40,230,000 20,040,000 32,149,000 30,157,000 26,372,000 19,523,000 11,481,000 21,757,000 20,217,000 11,668,000 6,027,000 15,397,000 18,265,000 3,215,000 22,460,000 8,509,000 7,865,000 1,861,000  10,168,000 9,141,000 3,680,000 4,314,000 8,826,000        1,365,000 -995,000 -16,700,000 -5,934,000 -2,217,000 2,446,000 480,000 -51,484,000 2,094,000 -16,217,000 -4,419,000 5,780,000 4,071,000 7,666,000 195,000 12,509,000 5,941,000 6,292,000 1,482,000 13,373,000 4,721,000 5,850,000 2,280,000 1,064,000 8,828,000 9,770,000 5,866,000 3,832,000 5,977,000 5,140,000 3,117,000 4,692,000 3,444,000 3,797,000 2,511,000 3,153,000 6,556,000 3,193,000      1,891,000 268,000 
          adjustments to reconcile net income to net cash from operating activities:
                                                                                              
          depreciation and amortization
        23,034,000 19,913,000 17,622,000 16,991,000 17,864,000 17,363,000 16,925,000 16,258,000 14,874,000 14,857,000 13,980,000 13,692,000 13,516,000 13,138,000 13,645,000 11,767,000 8,865,000 8,629,000 8,402,000 8,305,000 8,146,000 8,098,000 8,256,000 8,285,000 8,452,000 3,815,000 4,084,000 4,389,000  4,204,000 4,183,000 4,124,000 3,854,000 4,753,000 4,317,000 4,070,000 3,951,000 3,953,000 3,982,000 4,162,000 4,050,000 4,089,000 4,116,000 4,274,000 4,539,000 4,608,000 4,568,000 4,633,000 4,630,000 4,534,000 4,864,000 4,622,000 4,370,000 5,243,000 4,854,000 4,530,000  4,339,000 4,225,000 4,211,000 3,954,000 3,713,000 4,131,000 3,972,000 3,413,000 3,349,000 3,365,000 3,603,000 3,413,000 3,203,000 3,267,000 3,285,000 2,780,000 2,103,000 2,210,000 2,451,000 1,437,000 3,643,000 1,804,000 1,238,000 1,294,000 1,277,000 1,255,000 1,071,000 2,362,000 1,181,000 
          amortization of debt issuance costs and non-cash interest
        169,000 161,000 216,000 256,000 269,000 280,000 292,000 305,000 393,000 457,000 455,000 422,000 500,000 534,000 546,000 556,000 486,000 492,000 604,000 660,000 704,000 727,000                                                                 
          gain on disposal of property and equipment
        -739,000 -1,160,000 -558,000 -782,000 -193,000 -316,000 -2,379,000 -585,000 -1,184,000 -1,471,000 -959,000 -1,672,000 -711,000 -1,210,000 -488,000 -228,000 -220,000 -739,000 -369,000 -68,000 -453,000 -444,000 -205,000 -393,000  -25,000 -403,000 -38,000   -220,000 -250,000   -38,000 -358,000 -112,000 19,000   -274,000 -206,000 -240,000 -759,000 -90,000 11,000 -633,000 -283,000 -1,072,000 -730,000 65,000 -100,000  -253,000 -1,520,000 -1,204,000                               
          distribution of earnings from unconsolidated subsidiary
        6,999,000 5,933,000                                                                                     
          equity in earnings from unconsolidated subsidiary
        -1,668,000 -5,405,000 -3,785,000 -1,892,000                                                                                   
          deferred taxes
        1,909,000 3,842,000 4,764,000 650,000 26,466,000 2,590,000 2,000,000 1,517,000 4,558,000 3,398,000 4,062,000 2,728,000 11,517,000 10,470,000 8,865,000 5,640,000 4,015,000 6,119,000 7,152,000 4,142,000 8,493,000 4,723,000 5,310,000 913,000                                                               
          stock-based compensation
        7,497,000 5,963,000 5,595,000 6,683,000 5,250,000 4,371,000 4,796,000 4,586,000 3,647,000 3,972,000 3,763,000 3,240,000 3,531,000 2,732,000 2,627,000 3,836,000                                                                       
          changes in operating assets and liabilities
        24,602,000 -41,950,000 -27,853,000 20,386,000 98,710,000 62,593,000 44,762,000 -6,249,000 82,645,000 88,756,000 70,518,000 10,608,000 44,537,000 40,384,000 -36,078,000 -19,393,000 -14,865,000 7,110,000 16,181,000 11,863,000 1,420,000 8,443,000 5,061,000 -4,676,000 24,103,000 -1,889,000 1,333,000 -27,449,000                                                           
          net cash from operating activities
        165,568,000 83,626,000 85,428,000 84,883,000 174,269,000 152,274,000 120,970,000 49,591,000 147,369,000 150,108,000 132,049,000 49,058,000 88,469,000 96,058,000 15,406,000 19,183,000 15,852,000 44,250,000 52,772,000 38,720,000 28,334,000 38,688,000 41,490,000 10,771,000 32,616,000 12,802,000 14,917,000 -19,242,000  33,343,000 13,769,000 -23,293,000 29,960,000 5,385,000   8,789,000 8,975,000 25,895,000 840,000 5,477,000 7,116,000 -681,000 -2,943,000 3,605,000 -6,641,000 4,705,000 -12,182,000 -9,724,000 15,108,000 -16,698,000 -10,248,000 19,743,000 -18,085,000 21,753,000 1,378,000  -1,931,000 1,122,000 5,446,000 9,642,000 13,688,000 9,041,000 14,702,000 4,833,000 9,446,000    -678,000 18,951,000 656,000          4,089,000 7,090,000 4,707,000 315,000 -834,000 
          cash flows from investing activities:
                                                                                              
          acquisitions, net of cash acquired
         -446,296,000 -37,860,000 -6,396,000 -3,811,000 -1,016,000     -14,971,000                                                                         
          capital expenditures
        -19,629,000 -19,661,000 -13,338,000 -17,924,000 -15,645,000 -14,000,000 -28,877,000 -22,432,000 -15,135,000 -10,385,000 -24,638,000 -14,221,000 -13,077,000 -18,887,000 -13,976,000 -14,969,000 -7,336,000 -17,165,000 -10,941,000 -11,209,000 -10,776,000 -7,514,000 -7,220,000 -7,354,000 -7,526,000 -3,017,000 -3,814,000  -4,270,000 -3,366,000 -1,897,000 -1,115,000 -2,435,000   -2,036,000 -2,782,000 -3,252,000 -2,818,000 -1,000,000 -3,819,000 -2,106,000 -1,161,000 895,000 -6,737,000 -5,384,000 -2,283,000 -3,567,000 -4,644,000 -1,791,000 -4,898,000 -9,541,000 -9,962,000 -11,946,000 -5,910,000  -4,421,000 -6,738,000 -8,433,000 -5,611,000 -4,193,000 -1,958,000 -1,647,000 -885,000 -479,000    -5,916,000 -6,589,000 -4,467,000          -5,416,000 -3,000,000 -1,038,000 -1,255,000 -531,000 
          free cash flows
        145,939,000 63,965,000 72,090,000 66,959,000 158,624,000 138,274,000 92,093,000 27,159,000 132,234,000 139,723,000 107,411,000 34,837,000 75,392,000 77,171,000 1,430,000 4,214,000 8,516,000 27,085,000 41,831,000 27,511,000 17,558,000 31,174,000 34,270,000 3,417,000 25,090,000 9,785,000 14,917,000 -23,056,000  29,073,000 10,403,000 -25,190,000 28,845,000 2,950,000   6,753,000 6,193,000 22,643,000 -1,978,000 4,477,000 3,297,000 -2,787,000 -4,104,000 4,500,000 -13,378,000 -679,000 -14,465,000 -13,291,000 10,464,000 -18,489,000 -15,146,000 10,202,000 -28,047,000 9,807,000 -4,532,000  -6,352,000 -5,616,000 -2,987,000 4,031,000 9,495,000 7,083,000 13,055,000 3,948,000 8,967,000    -6,594,000 12,362,000 -3,811,000          -1,327,000 4,090,000 3,669,000 -940,000 -1,365,000 
          proceeds from sale of property and equipment
        1,945,000 1,369,000 1,072,000 1,573,000 2,323,000 890,000 4,543,000 2,401,000 4,197,000 1,082,000 1,799,000 6,726,000 1,904,000 2,092,000 545,000 406,000 2,020,000 1,403,000 482,000 208,000 816,000 788,000 257,000 512,000 69,000 463,000 665,000 137,000  192,000 421,000 886,000 2,554,000 3,923,000 1,319,000 588,000 527,000 793,000 679,000 715,000 2,684,000 2,581,000 414,000 2,864,000         549,000 5,068,000    366,000 382,000 182,000   434,000 31,000 41,000 44,000 225,000 125,000 127,000 500,000 483,000 188,000 695,000 43,000 149,000 716,000  561,000 193,000   96,000 164,000 53,000 92,000 91,000 
          net cash from investing activities
        -17,684,000 -464,588,000 -12,266,000 -54,211,000 -123,547,000 -16,921,000 -24,334,000 -21,047,000 -62,115,000 -9,303,000 -22,839,000 6,505,000 -41,933,000 -16,795,000 -16,464,000 -14,563,000 -186,227,000 -15,762,000 -10,459,000 -11,001,000 -9,960,000 -6,726,000 -6,963,000 -6,842,000 -403,780,000 -2,554,000 -375,000 -3,677,000  -4,078,000 -2,945,000 -1,011,000 1,439,000 1,627,000 -57,726,000 -1,237,000 -1,509,000 -1,989,000 -2,573,000 -2,103,000 1,684,000 -3,233,000 -4,642,000 1,703,000 2,099,000 -6,113,000 -3,394,000 -23,000 19,648,000 -2,370,000 -716,000 23,561,000 -28,115,000 -8,067,000 -14,292,000 -1,058,000  3,349,000 -765,000 -38,403,000 27,113,000 -11,914,000 -13,632,000 -10,423,000 -59,379,000 -15,854,000 -8,131,000 3,115,000  -22,799,000 -6,106,000 -4,225,000          -5,320,000 -2,836,000 -3,431,000 -1,163,000 -440,000 
          cash flows from financing activities:
                                                                                              
          repayments of debt
        -3,793,000 -3,792,000 -10,669,000 -6,606,000 -6,608,000 -6,607,000 -6,646,000 -6,678,000 -16,641,000 -9,261,000 -36,746,000 -30,843,000 -5,761,000 -5,842,000 -5,842,000 -5,928,000 -4,089,000 -4,112,000 -9,529,000 -30,543,000 -25,050,000 -30,051,000                                                                 
          repurchase of common stock
        -12,275,000 -4,700,000 -43,846,000 -20,000,000 -20,454,000                                                                                 
          withholding taxes paid on net share settlement of equity awards
        -10,679,000 -3,524,000 -358,000 -5,768,000 -8,044,000 -144,000 -249,000 -13,015,000 -4,988,000 -251,000 -40,000 -4,288,000                                                                           
          net cash from financing activities
        -26,747,000 -12,016,000 -12,436,000 -56,220,000 -34,654,000 -27,211,000 -37,065,000 -19,693,000 -23,089,000 -9,528,000 -36,786,000 -35,131,000 -15,177,000 -5,842,000 -5,842,000 -5,928,000 134,652,000 -4,113,000 -10,131,000 -32,502,000 -24,782,000 -29,981,000 -37,820,000 24,243,000 340,367,000 -5,448,000 424,000 -14,412,000  -6,514,000 299,000 -4,187,000 -13,987,000 -529,000 89,911,000 -1,339,000 -7,516,000 -6,600,000 4,394,000 11,756,000 -14,223,000 -6,731,000 2,463,000 -4,407,000    11,620,000    -12,301,000 10,480,000 8,074,000 -4,959,000 -81,000  4,965,000 -2,460,000 -4,114,000 -390,000 -25,521,000 -5,453,000 -11,818,000 46,713,000 -9,924,000 461,000 -5,765,000                 1,755,000 1,378,000 
          net change in cash, cash equivalents, and restricted cash
        121,137,000 -392,978,000 60,726,000 -25,548,000 16,068,000 108,142,000 59,571,000 8,851,000 62,165,000 131,277,000 72,424,000 20,432,000 31,359,000 73,421,000 -6,900,000 -1,308,000 -35,723,000 24,375,000                                                                     
          cash, cash equivalents and restricted cash at beginning of period
        390,721,000 664,195,000 471,563,000 185,265,000                                                                           
          cash, cash equivalents and restricted cash at end of period
        511,858,000 -392,978,000 60,726,000 638,647,000 16,068,000 108,142,000 59,571,000 480,414,000 62,165,000 131,277,000 72,424,000 205,697,000                                                                           
          less: restricted cash
                     153,000 -590,000 -6,990,000 -139,000 -303,000                                                                     
          cash and cash equivalents at end of period
        511,858,000 -392,978,000 60,726,000 638,647,000  108,142,000 59,571,000 480,414,000      73,574,000 -7,490,000 80,395,000 -35,862,000 24,072,000 32,228,000 61,402,000 -6,408,000 1,981,000 -3,293,000 73,905,000 -30,797,000 4,800,000 14,966,000 56,764,000  22,751,000 11,123,000 55,462,000 17,412,000 6,483,000 22,911,000 37,147,000 -236,000 386,000 27,716,000 14,919,000 -7,062,000 -2,848,000 -2,860,000 17,196,000 5,843,000 2,719,000 12,994,000 1,287,000 -3,142,000 3,985,000 -3,125,000 4,154,000 2,108,000 -18,078,000 2,502,000 16,610,000  6,383,000 -2,103,000 12,370,000 36,365,000 -23,747,000 -10,044,000 46,867,000 -7,833,000 -16,332,000 20,859,000 57,712,000 -6,789,000 -23,103,000 12,995,000 72,202,000 65,755,000 -702,000 443,000 15,153,000 9,470,000 15,945,000 35,419,000 2,129,000 13,687,000 5,446,000 1,005,000    
          non-cash items:
                                                                                              
          accrued capital expenditures
        3,551,000 2,365,000                                                                                     
          debt issuance costs
                                       -13,760,000                                                     
          other
            -2,000 -6,000          599,000 -1,000     9,742,000 -675,000 -299,000 24,000 577,000 -501,000  790,000 964,000 492,000 789,000 -33,000 -113,000 -6,000 -112,000 -46,000 1,073,000 -2,000,000 1,133,000 -575,000 -298,000 -109,000 -90,000 -248,000 -147,000 84,000 -15,000 5,000 -73,000   18,000                               
          share consideration for acquisitions
                                                                                              
          gain on deconsolidation of subsidiary
                                                                                              
          gain on debt extinguishment
                       -968,000                                                                     
          gain on disposition of myers
                                                                                              
          change in fair value of interest rate swap
                    117,000 -147,000 -83,000 -90,000 9,000 10,000                                                                     
          disposition, net of cash disposed
                                                                                              
          deconsolidation, net of cash
                                                                                              
          cash received from credit facility
                                                                                              
          distributions to noncontrolling interest owners
                        -518,000 -1,959,000     -1,460,000 -800,000 -5,100,000             -951,000   -1,000 -196,000 -994,000 -321,000   -3,596,000 -1,704,000    -1,367,000 -918,000 -3,900,000                           
          less: restricted cash - continuing operations
                   -3,121,000                                                                           
          cash and cash equivalents at end of period - continuing operations
                62,165,000 131,277,000 75,545,000 202,576,000                                                                           
          supplemental disclosures of cash flow information:
                                                                                              
          cash paid during the period for interest
                                       3,056,000   2,983,000 113,000 199,000 489,000 1,120,000 820,000 996,000 1,144,000 373,000 376,000 315,000 227,000 268,000 265,000 55,000 274,000 84,000 182,000 -330,000 -116,000 414,000 120,000  168,000 62,000 2,000 4,000 8,000 7,000 25,000  13,000 13,000 13,000  25,000 15,000 82,000  11,000   73,000 278,000 169,000        
          cash paid during the period for income taxes
                                            67,000    5,000 105,000 437,000 -27,000 27,000   1,000 148,000 21,000 85,000 150,000 755,000 2,000,000  362,000 364,000 1,665,000                           
          share consideration given for acquisitions
                                                                                              
          deferred payments from buyer of myers
                                                                                              
          disposition proceeds
                 14,000,000                                                                           
          less: cash, cash equivalents and restricted cash - discontinued operations
                                                                                              
          tax basis election and other payments due to sellers
                                                                                              
          less: restricted cash (other current assets) - continuing operations
                                                                                              
          cash, cash equivalents, and restricted cash at beginning of period
                     88,693,000                                                                     
          cash, cash equivalents, and restricted cash at end of period
                     73,421,000 -6,900,000 87,385,000 -35,723,000 24,375,000                                                                     
          loss on debt extinguishment
                       -2,428,000    337,000                                                                 
          stock-based compensation expense
                        6,081,000 1,840,000 2,015,000 1,835,000 3,682,000 1,765,000 3,962,000 2,234,000  819,000 649,000 1,021,000  798,000 766,000 617,000 309,000 557,000 1,337,000 640,000 599,000 406,000 405,000 400,000 285,000 830,000 331,000 158,000 257,000 209,000 149,000 234,000 189,000 259,000 202,000 278,000 265,000 165,000 159,000 105,000  124,000 133,000 125,000  176,000 155,000 142,000  145,000 160,000 139,000  140,000 128,000 105,000  124,000 441,000 417,000           
          purchase of treasury stock
                                -3,201,000                                                           
          notes and deferred payments to sellers
                                                                                              
          change in interest rate swap
                           -22,000                                                                   
          net change in cash and cash equivalents
                           -4,783,000 -6,408,000 1,981,000 -3,293,000 28,172,000 -30,797,000                                                              
          cash and cash equivalents at beginning of period
                           66,185,000 45,733,000 94,095,000  83,953,000 42,785,000 4,426,000 22,843,000 1,872,000 3,142,000 16,371,000  49,441,000 54,406,000 55,305,000 80,649,000 28,466,000 22,267,000 22,267,000 -69,000 3,518,000    
          plateau acquisition, net of cash acquired
                                                                                              
          tax basis election
                                                                                              
          change in interest rate hedge
                                                                                              
          other borrowings
                                                                                              
          loss on interest rate hedge
                              101,000 171,000                                                               
          amortization of debt issuance costs
                               1,022,000                                                               
          borrowings on revolving credit facility
                               30,000,000                                                               
          repayments of long-term debt
                               -5,082,000 -77,186,000 -4,672,000                                                             
          amortization of deferred debt costs
                                1,018,000 773,000                                                             
          loss on disposal of property and equipment
                                        -33,000       175,000                  -72,000 -9,000 -145,000                           
          unrealized gain on hedge
                                                                                              
          tealstone acquisition, net of cash acquired
                                                                                              
          estimated tax basis election
                                                                                              
          warrants issued to lenders
                                                                                              
          deferred tax expense
                                 800,000 620,000 141,000                         440,000 1,529,000 -185,000 -2,951,000  2,169,000 397,000 1,268,000 1,846,000 1,069,000 662,000 283,000 -563,000 734,000 2,153,000 2,158,000 2,666,000 3,777,000 1,312,000 1,183,000 1,954,000 1,568,000 1,783,000 1,295,000 1,229,000 3,218,000 1,541,000 -289,000 1,162,000 1,240,000 418,000 -3,456,000 983,000  
          net decrease in cash and cash equivalents
                                  14,966,000 -37,331,000    -28,491,000            -5,647,000                            -8,447,000               
          amortization of deferred loan costs
                                   833,000                                                           
          additions to property and equipment
                                   -3,814,000  -4,270,000 -3,366,000 -1,897,000 -1,115,000 -2,435,000 -4,045,000 -1,825,000 -2,036,000 -2,782,000 -3,252,000 -2,818,000 -1,000,000 -3,819,000 -2,106,000 -1,161,000 895,000 -6,737,000 -5,384,000 -2,283,000 -3,567,000 -4,644,000 -1,791,000 -4,898,000 -9,541,000 -9,962,000 -11,946,000 -5,910,000  -4,421,000 -6,738,000 -8,433,000 -5,611,000 -4,193,000 -1,958,000 -1,647,000 -885,000 -479,000 -2,315,000 -1,598,000 -2,924,000 -5,916,000 -6,589,000 -4,467,000 -3,286,000 -6,399,000 -9,583,000 -7,051,000 -2,349,000 -13,619,000 -7,860,000 -1,444,000 -1,532,000 -5,416,000 -3,000,000 -1,038,000 -1,255,000 -531,000 
          repayments on long-term debt
                                   -5,610,000                                                           
          net cash provided by:
                                                                                              
          operating activities
                                                                                              
          investing activities
                                                                                              
          financing activities
                                                                                              
          total increase in cash and cash equivalents
                                                                                              
          net income attributable to sterling common stockholders
                                     8,917,000 8,174,000 2,489,000 3,080,000 7,132,000         -2,542,000 -16,992,000   1,201,000 205,000     2,926,000 992,000 3,285,000 -7,500,000 11,371,000 3,461,000 4,211,000 44,000 9,372,000 3,496,000 4,667,000 1,552,000 761,000 8,093,000 9,285,000 5,565,000                   
          plus: noncontrolling interests in earnings
                                     1,251,000 967,000 1,191,000                                                       
          changes in operating assets and liabilities:
                                                                                              
          contracts receivable
                                     4,218,000 -23,588,000 -6,946,000 15,121,000 -4,881,000 -33,206,000 -6,957,000 21,283,000 1,180,000 -11,837,000 -12,646,000 17,554,000 897,000 -5,955,000 -15,712,000 26,406,000 -693,000 -26,264,000 -1,100,000 13,418,000 -2,970,000                                     
          costs and estimated earnings in excess of billings on uncompleted contracts
                                     -3,887,000 3,625,000 -2,901,000 6,272,000 -2,796,000 -3,169,000 -1,770,000 -716,000 3,402,000 -7,203,000 -1,283,000 -3,618,000 2,216,000 324,000 7,576,000 -1,658,000 240,000 -13,234,000 -7,067,000 19,797,000 -8,154,000                                     
          inventories
                                     -1,527,000 249,000 2,759,000 -2,528,000 1,428,000 1,454,000 -49,000 292,000 -275,000 -795,000 -395,000                                               
          receivables from and equity in construction joint ventures
                                     245,000 719,000 -1,105,000 -2,311,000 -1,606,000 427,000 -760,000 2,339,000 -2,104,000 951,000 4,614,000 -1,841,000 -252,000 -1,139,000 -545,000 1,468,000 -1,804,000 2,379,000 -5,078,000 6,142,000 -3,717,000                                     
          other assets
                                     92,000 -2,548,000 1,102,000 5,111,000 -2,058,000 -1,370,000 -1,059,000 1,841,000 -742,000 -801,000 297,000 213,000                                              
          accounts payable
                                     9,887,000 11,261,000 -12,334,000 -3,108,000 3,765,000 8,571,000 4,351,000 -9,764,000 -2,992,000 16,465,000 4,429,000 -543,000 -16,258,000 4,298,000 4,669,000 -14,305,000 -9,061,000 28,151,000 407,000  23,290,000                                     
          billings in excess of costs and estimated earnings on uncompleted contracts
                                     5,660,000 3,615,000 -7,685,000 -994,000 -13,548,000 13,957,000 -1,444,000 2,204,000 4,982,000 17,831,000 8,527,000 -2,493,000 -2,088,000 778,000 8,710,000 -2,872,000 -1,726,000 2,800,000 -4,129,000 506,000 6,629,000                                     
          accrued compensation and other liabilities
                                     1,175,000 2,652,000 -891,000 2,141,000 11,257,000 -9,175,000 3,207,000 -6,118,000 785,000 1,754,000 4,123,000 -7,377,000 4,401,000 -2,281,000 2,110,000 -9,103,000 3,885,000 3,633,000 -919,000 683,000 1,052,000                                     
          members' interest subject to mandatory redemption and undistributed earnings
                                     1,007,000 3,914,000 -3,463,000                                                       
          cash received – oaktree facility
                                                                                              
          repayments – equipment-based term loan and other
                                     -204,000                                                         
          repayments – oaktree facility
                                     -5,750,000 -4,679,000                                                       
          net increase in cash and cash equivalents
                                     22,751,000   17,412,000 6,483,000 22,911,000 -5,638,000 -236,000 386,000 27,716,000 10,493,000 -7,062,000 -2,848,000   5,843,000 2,719,000 12,994,000 -585,000  3,985,000 -3,125,000 1,012,000  -18,078,000 2,502,000 239,000  6,383,000 -2,103,000 -37,071,000 36,365,000 -23,747,000 -10,044,000 -7,539,000 -7,833,000 -16,332,000 20,859,000 2,407,000  -23,103,000            5,446,000 -2,513,000 166,000 907,000  
          impairment on building held-for-sale
                                                                                              
          transportation and construction equipment acquired through financing arrangements
                                       171,000   70,000 5,000 224,000 430,000 81,000 1,501,000 174,000 399,000 588,000                                           
          plus: noncontrolling owners’ interests in earnings of subsidiaries and joint ventures
                                        1,234,000 1,694,000 901,000 371,000 574,000 740,000 520,000 -8,000     1,318,000 1,718,000 1,245,000 275,000 653,000 2,284,000 805,000 161,000 2,854,000 3,079,000 4,381,000 7,695,000  2,480,000 2,081,000 1,438,000                           
          revaluation of noncontrolling interest due to a new agreement
                                                                                              
          income tax receivable
                                                60,000 -56,000 -38,000 1,453,000 4,134,000 710,000 27,000 -87,000 -3,297,000 669,000                                     
          member’s interest subject to mandatory redemption and undistributed earnings
                                             -2,794,000 3,049,000 -4,227,000  -953,000 2,733,000 -679,000 42,000                                          
          tealstsone acquisition, net of cash acquired
                                        139,000                                                     
          restricted cash
                                                                                             
          cash received from oaktree facility
                                                                                              
          cumulative daily drawdowns – prior credit facility
                                                                                              
          cumulative daily repayments – prior credit facility
                                                                                              
          cumulative drawdowns – equipment-based revolver
                                            -34,871,000 5,000,000 14,000,000 1,450,000 -1,450,000                                             
          cumulative repayments – equipment-based revolver
                                             -18,100,000 -900,000                                               
          cash received from (used to pay) equipment-based term loan
                                                                                              
          repayments under long-term obligations – other
                                                                                              
          net proceeds from stock issued
                                            -2,000       -32,000 28,000                                         
          share consideration given for tealstone acquisition
                                                                                              
          revaluation of noncontrolling interests
                                                                                              
          cash received–term loan
                                                                                             
          cumulative repayments – equipment-based term loan and other
                                           -1,333,000  -6,598,000 -1,650,000 -1,298,000                                               
          cumulative repayments – term loan and other
                                                                                              
          net loss attributable to sterling common stockholders
                                           -2,257,000 -6,348,000 2,415,000 2,023,000 -7,328,000 -1,124,000    -7,252,000    -52,137,000 -190,000 -17,022,000 -4,580,000                                   
          net loss
                                           -1,886,000 -5,774,000 3,155,000 2,543,000 -7,336,000                                               
          adjustments to reconcile net loss to net cash from operating activities:
                                                                                              
          members’ interest subject to mandatory redemption and undistributed earnings
                                           -1,047,000                                                   
          net cash (used in) provided operating activities
                                           -3,062,000                                                   
          loss on extinguishment of debt
                                                                                            
          cumulative daily drawdowns – credit facility
                                                14,122,000 2,470,000 44,538,000 65,840,000 92,761,000 86,817,000 84,482,000 66,278,000 66,228,000 58,585,000 58,325,000 35,888,000 55,012,000 17,000,000 2,000,000 1,000,000  14,000,000 1,000,000 1,000,000 2,700,000 25,000,000 30,000,000 48,000,000 40,000,000 50,000,000 50,000,000 55,000,000 60,000,000 60,000,000 60,000,000               
          cumulative daily repayments – credit facility
                                                -14,121,000 -2,471,000 -75,307,000 -69,672,000 -92,303,000 -71,263,000 -86,563,000 -53,416,000 -78,854,000 -67,422,000 -40,775,000 -48,179,000 -41,000,000 -7,000,000 -2,000,000 -1,000,000  -6,000,000 -1,000,000 -1,000,000 -2,700,000                          
          cash received from equipment-based term loan
                                                1,020,000 -1,020,000                                             
          repayments under long-term obligations – equipment-based term loan and other
                                                                                              
          deferred loan costs
                                                                                             
          cash received– equipment-based term loan
                                                                                              
          restricted cash used as collateral for letter of credit
                                                                                              
          plus: noncontrolling owners’ interests in earnings of subsidiaries
                                                268,000 1,109,000 1,547,000 292,000                                           
          gain on sale of securities
                                                                     -80,000 -547,000 -417,000                       
          tax impact from exercise of stock options and restricted stock
                                                                                              
          purchases of short-term securities, available-for-sale
                                                        -478,000                                     
          sales of short-term securities, available-for-sale
                                                        20,945,000 321,000                                     
          issuance of common stock pursuant to warrants and options exercised
                                                            21,000                                 
          tax impact from exercise of stock options
                                                        -32,000 2,000 15,000  14,000                                 
          other current assets
                                                  -2,853,000 2,502,000    727,000                                       
          interest expense accreted on noncontrolling interests
                                                            248,000 248,000    212,000                             
          acquisition of noncontrolling interests
                                                                                              
          issuance of noncontrolling interest in rhb in exchange for net assets of acquired companies
                                                            -5,429,000                                 
          goodwill adjustments
                                                                                              
          deferred tax benefit
                                                         -894,000 -9,141,000 -139,000                                  189,000 
          inventories, deposits and other current assets
                                                     349,000    -6,959,000                                     
          proceeds from sales of property and equipment
                                                     624,000 1,990,000 2,260,000  2,431,000 1,273,000 813,000    3,306,000                               
          net cash from in financing activities
                                                     15,473,000                                         
          revaluation of noncontrolling interest obligations, net of tax
                                                         -747,000 1,501,000 -1,854,000                                   
          purchases of short-term securities, available for sale
                                                           -505,000   -9,304,000 -9,779,000  -14,557,000 -25,646,000 -57,516,000         -6,996,000    -30,965,000 -43,320,000 -26,241,000 -23,271,000 -37,397,000 -62,057,000         
          sales of short-term securities, available for sale
                                                           28,151,000   3,417,000 11,325,000  25,872,000 31,237,000 27,364,000           54,000 63,541,000 40,396,000 24,357,000 21,618,000 33,813,000 41,519,000         
          goodwill impairment
                                                                                              
          gain on sale of securities and other
                                                        381,000 5,000 -471,000                                   
          accounts payables
                                                                                              
          net assets of acquired companies, net of cash acquired
                                                                                              
          purchases of treasury stock
                                                                 -1,751,000 -1,645,000 -196,000                           
          reclassification of amounts payable to noncontrolling interest owner
                                                                 1,054,000                           
          tax benefit related to the exercise of rhb’s liability
                                                                                              
          net liabilities assumed in connection with acquisitions
                                                                                              
          interest expense accreted on discounted liabilities
                                                               248,000                               
          net cash from (used) in financing activities
                                                         -8,753,000                                     
          decrease in contracts receivable
                                                           6,424,000 49,663,000   1,982,000  -8,767,000   5,523,000 -3,071,000 201,000 7,329,000                     1,203,000  
          increase in costs and estimated earnings in excess of billings on uncompleted contracts
                                                           -13,739,000    -1,312,000                  -686,000             
          decrease in receivables from and equity in construction joint ventures
                                                           1,555,000 -238,000 -3,878,000    -2,225,000                             
          increase in income tax receivable
                                                           -2,672,000    -1,079,000                               
          increase in inventories, deposits and other current assets
                                                           -1,881,000    -1,906,000                               
          increase in accounts payable
                                                           6,246,000    4,762,000      7,458,000 1,958,000 -23,000      -251,000               2,071,000 3,225,000 
          increase in billings in excess of costs and estimated earnings on uncompleted contracts
                                                           -6,048,000 -8,113,000 2,594,000 3,423,000 2,431,000  -4,372,000 1,177,000 40,000   -2,234,000 2,248,000             1,124,000 -1,682,000 350,000 1,618,000    -272,000 -5,088,000 -2,229,000 
          increase in accrued compensation and other liabilities
                                                           81,000 -7,200,000 3,080,000 4,146,000 -2,303,000  -2,237,000                   -1,175,000 956,000 -650,000 34,000 75,000 392,000 1,500,000 -1,524,000 -870,000 -264,000 
          loss on sale of securities and other
                                                            -106,000 -116,000 -47,000 -649,000  -212,000                             
          tax expense (benefits) from exercise of stock options and restricted stock
                                                                                              
          other changes in operating assets and liabilities:
                                                                                              
          decrease in costs and estimated earnings in excess of billings on uncompleted contracts
                                                            -2,716,000 -1,745,000    -5,690,000                   142,000 -866,000 -147,000 1,097,000 1,054,000 1,406,000 128,000 -723,000   
          decrease in other current assets
                                                                     616,000 327,000 -809,000                       
          increase in accounts payables
                                                                                              
          tax benefits from exercise of stock options
                                                                                              
          revaluation of noncontrolling interest – rlw and rhb’s put/call liability
                                                                                              
          decrease in income tax receivable
                                                                                              
          decrease in prepaid expenses and other assets
                                                             519,000                                147,000 
          repayments under long-term obligations
                                                                 -19,000 -18,000 -19,000 -18,000 -18,000 -18,000 -18,000 -19,000 -19,000 -18,000    -31,000 -36,000   -31,000 8,420,000 -8,515,000 -8,484,000 -556,000 -288,000 -589,000 -1,329,000    
          utilization of tax impact from exercise of stock options
                                                             -14,000                                 
          revaluation of noncontrolling interest – rlw put/call liability, net of tax
                                                             763,000 175,000 301,000                               
          increase in contracts receivable
                                                                                 -1,682,000 -499,000 -7,512,000  -9,485,000     -4,752,000    
          increase in trade payables
                                                                 8,992,000 2,091,000 -2,074,000                 -2,105,000 -2,065,000 -696,000 -8,829,000 8,585,000 -2,545,000 8,823,000    
          increase in receivables from and equity in construction joint ventures
                                                               -1,489,000                               
          revenues
                                                                                              
          gross profit
                                                                                              
          general and administrative expenses
                                                                                              
          unusual items
                                                                                              
          other income
                                                                                              
          operating income
                                                                                              
          gains on the sale of short-term investments
                                                                                              
          interest income
                                                                                              
          interest expense
                                                                                              
          income before taxes
                                                                                              
          income taxes
                                                                                              
          net income attributable to noncontrolling interest in earnings of subsidiaries
                                                                                              
          gross margin
                                                                                              
          operating margin
                                                                                              
          contract backlog, end of year
                                                                                              
          cash and cash equivalents
                                                                                              
          net cash from:
                                                                                              
          supplementary information:
                                                                                              
          working capital
                                                                                              
          utilization of tax benefits from exercise of stock options
                                                                                              
          interest expense accreted on noncontrolling interest
                                                                   212,000      52,000 52,000 51,000                   
          loss on sale of securities
                                                                   204,000                           
          increase in accrued compensation and other accrued expenses
                                                                   1,894,000                           
          stock based compensation expense
                                                                                     492,000         
          excess tax benefits from exercise of stock options
                                                                            -696,000 -289,000 -117,000 -116,000               
          cash paid for business combinations, net of cash acquired
                                                                                              
          (issuance) payments on note receivables
                                                                                              
          increase in deferred loan costs
                                                                                              
          utilization of excess tax benefits from exercise of stock options
                                                                                              
          net proceeds from sale of common stock
                                                                                    27,039,000 27,059,000        
          plus: net income attributable to non-controlling interests
                                                                     1,225,000 1,183,000 728,000                       
          adjustments to reconcile net income to net cash
                                                                                              
          provided by operating activities:
                                                                                              
          accreted interest on puts of non-controlling interest owners
                                                                                              
          decrease in costs and estimated earnings
                                                                                              
          in excess of billings on uncompleted contracts
                                                                       319,000   69,000 -1,620,000  -2,087,000                 
          decrease in receivables from and equity in unconsolidated joint ventures
                                                                                              
          increase in billings in excess of costs and
                                                                                              
          estimated earnings on uncompleted contracts
                                                                          844,000 5,047,000  -8,229,000      2,778,000           
          increase in other accrued expenses
                                                                     2,425,000 1,376,000 -883,000                       
          purchases of short-term investments
                                                                     -12,573,000 -59,351,000 -18,100,000                       
          proceeds from sales of short-term investments
                                                                     5,045,000 47,243,000 9,293,000                       
          distribution of earnings to non-controlling interest
                                                                     -1,018,000 -552,000 -1,824,000                       
          cash paid during the period for taxes
                                                                         4,500,000    1,500,000   770,000 440,000   282,000 13,000 7,000        
          loss on sale of property and equipment
                                                                         73,000                -77,000 -131,000 22,000 5,000 5,000 
          interest expense accreted on non-controlling interest
                                                                      292,000 292,000                       
          decrease in equity investment in unconsolidated joint ventures
                                                                                              
          (issuance) of note receivable
                                                                                              
          cumulative daily reductions – credit facility
                                                                      -30,000,000 -40,000,000 -48,000,000 -50,000,000 -50,000,000 -55,000,000 -59,920,000 -60,018,000 -60,062,000 -65,000,000               
          issuance of common stock pursuant to the exercise of options and warrants
                                                                      99,000 24,000  95,000 130,000 11,000                   
          gain on sale of property and equipment
                                                                       -31,000         -111,000 -13,000 -106,000 -271,000  -158,000 -118,000        
          plus: non-controlling interests in earnings of subsidiaries
                                                                                              
          (gain) loss on sale of property and equipment
                                                                                              
          (increase) decrease in contracts receivable
                                                                        20,943,000   -9,559,000    1,258,000               
          (increase) decrease in costs and estimated earnings in excess of billings on uncompleted contracts
                                                                        2,466,000                      
          (increase) decrease in prepaid expenses and other assets
                                                                                              
          increase (decrease) in trade payables
                                                                                              
          increase (decrease) in billings in excess of costs and estimated earnings on uncompleted contracts
                                                                        -6,137,000       -1,434,000               
          increase (decrease) in accrued compensation and other liabilities
                                                                                              
          distributions to non-controlling interest owners
                                                                                              
          cash paid during the period for interest, net of 13, 107 and 53 of capitalized interest expense in 2009, 2008 and 2007, respectively
                                                                                              
          cash flows provided by operating activities:
                                                                                              
          plus: net income attributable to noncontrolling interest
                                                                         735,000 485,000 301,000                   
          (increase) decrease in other current assets
                                                                           -125,000  -976,000                 
          increase (decrease) in accounts payable
                                                                           -64,000    -5,280,000  -1,816,000 896,000 5,804,000           
          increase (decrease) in other accrued expenses
                                                                           -350,000   669,000 280,000               
          (issuance) payment on note receivable
                                                                                             
          distribution of earnings to noncontrolling interest
                                                                         -408,000                   
          expenditures related to 2007 equity offering
                                                                             -143,000               
          adjustments to reconcile net income to net cash provided by operating activities:
                                                                                              
          purchases of short-term investments, available for sale
                                                                          -19,669,000 -6,405,000                   
          proceeds from sales of short-term investments, available for sale
                                                                          13,978,000 10,993,000                   
          loss (gain) on sale of property and equipment
                                                                           -89,000  -61,000 91,000 11,000               
          (increase) decrease in costs and estimated earnings
                                                                                              
          increase (decrease) in billings in excess of costs and
                                                                                              
          net cash from by operating activities
                                                                           5,057,000                   
          issuance of note receivable
                                                                           -350,000                   
          payments received on note receivable
                                                                             63,000 61,000 60,000  95,000 77,000 77,000           
          net income from discontinued operations
                                                                                -25,000 238,000 379,000 171,000        
          net income from continuing operations
                                                                                4,692,000 3,444,000 3,797,000 2,536,000 2,915,000 6,177,000 3,022,000        
          adjustments to reconcile income from continuing operations to net cash from continuing operating activities:
                                                                                              
          minority interest in net earnings of subsidiary
                                                                            89,000 370,000 357,000 92,000            100,000 609,000 167,000 
          interest expense accreted on minority interest
                                                                            -179,000 126,000 126,000 126,000               
          (increase) in contracts receivable
                                                                            6,658,000          -3,763,000       -55,000 
          (decrease) increase in trade payables
                                                                                              
          (decrease) increase in billings in excess of costs and estimated earnings on uncompleted contracts
                                                                                              
          (decrease) increase in accrued compensation and other liabilities
                                                                                              
          net cash from continuing operations operating activities
                                                                                              
          cash flows from continuing operations investing activities:
                                                                                              
          net cash from continuing operations investing activities
                                                                                -19,349,000 -9,280,000 -11,318,000 -7,988,000 -5,791,000 -35,802,000 -9,873,000        
          cash flows from continuing operations financing activities:
                                                                                              
          repayments under related party long term debt
                                                                                              
          distributions to rhb minority interest owner
                                                                                              
          payments on note receivable
                                                                                              
          net cash from continuing operations financing activities
                                                                                    2,018,000 29,399,000         
          net increase in cash and cash equivalents from continuing operations
                                                                                       2,129,000       
          cash provided by discontinued operations
                                                                                              
          cash used in discontinued investing activities
                                                                                              
          cash used in discontinued operations financing activities
                                                                                              
          net cash from discontinued operations
                                                                                    -124,000 -77,000 -53,000 -77,000       
          cash paid during the period for interest, net of 107, 53 and 14 of capitalized interest expense in 2008, 2007 and 2006, respectively
                                                                                              
          adjustments to reconcile income from operations to
                                                                                              
          net cash from operating activities:
                                                                                              
          (increase) in costs and estimated earnings
                                                                                              
          issuance of common stock pursuant to the exercise ofoptions and warrants
                                                                                              
          net cash provided (used) by financing activities
                                                                                              
          increase in costs and estimated earnings
                                                                                              
          issuance of common stock pursuant to the exercise of options
                                                                              3,000 120,000  35,000 106,000 69,000           
          net cash used by financing activities
                                                                              150,000 -4,878,000               
          adjustments to reconcile income from operations to net cash from operating activities:
                                                                                              
          (increase) in costs and estimated earnings in excess of billings on uncompleted contracts
                                                                               -1,918,000             -1,726,000 -960,000 
          (increase) in other current assets
                                                                               -53,000               
          (increase) in inventories
                                                                                             -547,000 
          net cash from continuing operating activities
                                                                                14,919,000 3,479,000 6,609,000 4,560,000 13,243,000 81,000 1,743,000 5,898,000       
          cumulative daily drawdowns – revolver
                                                                                              
          cumulative daily reductions – revolver
                                                                                              
          cash from discontinued operating activities
                                                                                    -287,000 -594,000 -347,000 -26,000       
          cash used in discontinued operations investing activities
                                                                                              
          cash from discontinued operations financing activities
                                                                                    -4,614,000 555,000 328,000        
          cash paid during the period for interest, net of 53 and 14 of capitalized interest expense in 2007 and 2006
                                                                                              
          supplemental disclosure of non-cash financing activities:
                                                                                              
          capital lease obligations for new equipment
                                                                                              
          increase in inventories
                                                                                 -10,000 -13,000 -59,000       -2,047,000    
          decrease in other assets
                                                                                              
          increase in bilings in excess of costs and estimated earnings on uncompleted contracts
                                                                                              
          purchase of certain assets of rdi
                                                                                    -2,206,000 -2,206,000        
          cumulative daily drawdowns – revolvers
                                                                                 50,000,000    24,000,000 16,000,000        
          cumulative daily reductions – revolvers
                                                                                 -44,938,000    -13,788,000 -13,788,000        
          net proceeds from the sale of common stock
                                                                                              
          net cash provided by continuing operations financing activities
                                                                                              
          net decrease in cash and cash equivalents of continuing operations
                                                                                 -702,000 443,000 -13,313,000           
          cash provided by discontinued operating activities
                                                                                              
          cash used for discontinued operations investing activities
                                                                                              
          cash provided by discontinued operations financing activities
                                                                                              
          supplemental disclosure of non-cash activity:
                                                                                              
          change in accrual of discontinued operations
                                                                                             
          increase in other assets
                                                                                              
          (decrease) increase in other accrued expenses
                                                                                              
          cash used in discontinued operating activities
                                                                                              
          increase in costs and estimated earnings in
                                                                                              
          excess of billings on uncompleted contracts
                                                                                   -1,284,000           
          (increase) decrease in other assets
                                                                                   -609,000           
          decrease in other accrued expenses
                                                                                   -986,000           
          cumulative daily drawdowns - revolvers
                                                                                   20,000,000       32,523,000    
          cumulative daily reductions - revolvers
                                                                                   -30,000,000       -38,477,000    
          net cash from continuing operations financing activities:
                                                                                   -9,885,000   21,282,000        
          net cash (used in) discontinued operations
                                                                                              
          fair value of induced conversion of debt to equity
                                                                                              
          net cash paid upon acquisition of tsc minority interest
                                                                                              
          cumulative daily drawdowns- revolver
                                                                                              
          cumulative daily reductions — revolver
                                                                                    -36,025,000          
          issuance of common stock pursuant to warrants and options
                                                                                    171,000 663,000 495,000        
          cash from discontinued operations investing activities
                                                                                    4,777,000 -38,000 -34,000        
          adjustments to reconcile income from operations to net cash from continuing operating activities:
                                                                                              
          gain on sale of equipment
                                                                                              
          decrease in prepaid expense and other assets
                                                                                     -149,000 217,000 70,000 -248,000 719,000 189,000    
          proceeds from sale of equipment
                                                                                              
          cumulative daily drawdowns — revolver
                                                                                              
          net increase in cash and cash equivalents of continuing operations
                                                                                     -6,322,000 13,152,000        
          deferred compensation expense
                                                                                      183,000 107,000 110,000 193,000 53,000 67,000 258,000 215,000 
          increase in put liability
                                                                                              
          accretion of zero coupon notes
                                                                                              
          cumulative daily drawdowns of revolvers
                                                                                       26,810,000 35,963,000      
          cumulative daily reductions of revolvers
                                                                                       -28,764,000 -34,860,000      
          issuance of common stock, pursuant to options and warrants
                                                                                       35,000 274,000      
          net cash from continuing financing activities:
                                                                                       -2,475,000       
          cash paid during period for taxes
                                                                                              
          continuing operations
                                                                                              
          income from continuing operations
                                                                                              
          gain on sale of surplus equipment
                                                                                              
          proceeds from sale of surplus equipment
                                                                                              
          net cash from continuing investing activities
                                                                                              
          discontinued operations
                                                                                              
          cash from discontinued investing activities
                                                                                              
          cash from discontinued financing activities
                                                                                              
          cash paid for interest
                                                                                              
          cash paid for income taxes
                                                                                              
          reduction of deferred tax valuation allowance
                                                                                             
          income from operations
                                                                                         2,401,000 827,000    
          provision for doubtful accounts
                                                                                              
          increase in accounts receivable
                                                                                         1,061,000 -1,813,000    
          decrease in inventories
                                                                                           264,000 7,000  
          increasein billings in excess of costs and estimated earnings on uncompleted contracts
                                                                                         4,099,000 2,611,000    
          privitization of scpi
                                                                                              
          net cash from financing activities:
                                                                                         6,677,000 -6,767,000    
          bad debt expense
                                                                                          29,000    
          effect of scpi reverse stock split
                                                                                              
          issuance of common stock, pursuant to options
                                                                                          516,000    
          other changes in operating assets and liabilities, net of effect from acquisitions:
                                                                                              
          decrease in accounts receivable
                                                                                              
          net cash paid upon acquisition of kinsel business
                                                                                              
          net cash paid upon acquisition of shh minority interest
                                                                                              
          cumulative daily drawdowns-revolvers
                                                                                              
          additions to long-term obligations
                                                                                              
          proceeds from issuance of short-term debt
                                                                                              
          cash paid during period for:
                                                                                              
          interest
                                                                                              
          decrease in trade accounts receivable
                                                                                            -822,000  
          borrowings under short-term obligations
                                                                                              
          borrowings on long-term obligations
                                                                                              
          reductions in long-term obligations
                                                                                              
          cancellation of long term debt
                                                                                              
          cash received from option exercises
                                                                                            379,000  
          purchase of minority interest in subsidiary
                                                                                            -49,000 -49,000 
          cash and cash equivalents, beginning of period
                                                                                            2,765,000  
          cash and cash equivalents, end of period
                                                                                            3,672,000  
          (increase) in prepaid expenses and other assets
                                                                                            -568,000  
          net borrowings (payments) on long-term obligations
                                                                                            1,425,000 1,102,000 
          (increase) in trade accounts receivable
                                                                                             -2,176,000 
          cash paid for option exercises
                                                                                             325,000 
          net increase in cash
                                                                                             104,000 
          cash at beginning of period
                                                                                             2,765,000 
          cash at end of period
                                                                                             2,869,000 
          loss from equity investments
                                                                                              
          net cash paid upon acquisition of kinsel heavy highway construction business
                                                                                              
          net cash paid upon acquisition of sterling houston holdings
                                                                                              
          (repayments) borrowings under long term obligations
                                                                                              
          proceeds from issuance of long term debt
                                                                                              
          issuance of common stock, net of expenses
                                                                                              
          principal payments on long-term obligations
                                                                                              
          sale of treasury stock
                                                                                              
          cash paid during the period for operating activities from continuing operations:
                                                                                              
          income taxes, net of refunds received