7Baggers

Alamo Group Inc
(NYSE:ALG) 

ALG stock logo

Alamo Group Inc. designs, manufactures, distributes, and services agricultural and infrastructure maintenance equipment for governmental and industrial use worldwide. The company offers hydraulically-powered and tractor-mounted mowers, such as boom-mounted mowers; other cutters and replacement parts...

Founded: 1955
Full Time Employees: 4,270
Sector: Industrials
Industry: Farm & Heavy Construction Machinery

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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 2010-03-31 2009-12-31 2009-03-31 2008-12-31 2008-03-31 2007-12-31 2007-03-31 2006-12-31 2005-12-31 2004-12-31 2003-12-31 2003-06-30 2002-12-31 
                                                                               
      net sales:
                                                                               
      vegetation management
    175,420,000 138,746,000 173,059,000 178,358,000 163,890,000 159,802,000 190,115,000 211,535,000 223,747,000 214,357,000 246,902,000 261,346,000 256,435,000 232,545,000 228,511,000 255,003,000 221,006,000                                                           
      industrial equipment
    241,729,000 234,904,000 246,983,000 240,715,000 227,060,000 225,521,000 211,186,000 204,768,000 201,839,000 203,185,000 172,742,000 179,348,000 155,336,000 154,059,000 140,282,000 141,211,000 140,999,000                                                           
      total net sales
    417,149,000 373,650,000 420,042,000 419,073,000 390,950,000 385,323,000 401,301,000 416,303,000 425,586,000 417,542,000 419,644,000 440,694,000 411,771,000 386,604,000 368,793,000 396,214,000 362,005,000 337,173,000 338,311,000 347,550,000 311,189,000 288,624,000 291,759,000 268,635,000 314,448,000 300,189,000 271,829,000 285,186,000 261,934,000 256,038,000 257,572,000 257,125,000 238,087,000 243,260,000 240,455,000 213,276,000 215,389,000 205,522,000 216,766,000 211,489,000 210,971,000 224,431,000 231,614,000 215,734,000 207,798,000 228,277,000 233,175,000 206,353,000 171,250,000 165,605,000 174,738,000 178,064,000 158,429,000 149,404,000 156,078,000 167,009,000 155,911,000 146,997,000 155,057,000 160,824,000 140,715,000  128,389,000  110,143,000  133,781,000  120,147,000     73,536,000  
      cost of sales
    312,344,000 288,649,000 318,359,000 310,781,000 288,109,000 293,535,000 300,414,000 308,122,000 313,954,000 308,622,000 305,501,000 322,620,000 299,264,000 288,809,000 276,428,000 296,497,000 275,364,000 253,521,000 252,015,000 259,410,000 234,763,000 221,915,000 213,123,000 200,810,000 235,508,000 232,113,000 203,119,000 212,053,000 198,626,000 193,406,000 190,800,000 190,671,000 177,830,000 182,349,000 175,516,000 158,597,000 161,225,000 157,589,000 162,055,000 159,311,000 160,694,000 175,694,000 174,105,000 165,069,000 162,261,000 179,905,000 177,735,000 159,067,000 133,120,000 129,254,000 131,582,000 133,973,000 123,517,000 117,361,000 119,008,000 127,848,000 120,673,000 118,427,000 117,834,000 123,433,000 108,814,000  100,254,000  88,416,000  108,800,000  98,590,000     56,692,000  
      gross profit
    104,805,000 85,001,000 101,683,000 108,292,000 102,841,000 91,788,000 100,887,000 108,181,000 111,632,000 108,920,000 114,143,000 118,074,000 112,507,000 97,795,000 92,365,000 99,717,000 86,641,000 83,652,000 86,296,000 88,140,000 76,426,000 66,709,000 78,636,000 67,825,000 78,940,000 68,076,000 68,710,000 73,133,000 63,308,000 62,632,000 66,772,000 66,454,000 60,257,000 60,911,000 64,939,000 54,679,000 54,164,000 47,933,000 54,711,000 52,178,000 50,277,000 48,737,000 57,509,000 50,665,000 45,537,000 48,372,000 55,440,000 47,286,000 38,130,000 36,351,000 43,156,000 44,091,000 34,912,000 32,043,000 37,070,000 39,161,000 35,238,000 28,570,000 37,223,000 37,391,000 31,901,000  28,135,000  21,727,000  24,981,000  21,557,000     16,844,000  
      yoy
    1.91% -7.39% 0.79% 0.10% -7.87% -15.73% -11.61% -8.38% -0.78% 11.38% 23.58% 18.41% 29.85% 16.91% 7.03% 13.13% 13.37% 25.40% 9.74% 29.95% -3.18% -2.01% 14.45% -7.26% 24.69% 8.69% 2.90% 10.05% 5.06% 2.83% 2.82% 21.53% 11.25% 27.08% 18.69% 4.79% 7.73% -1.65% -4.87% 2.99% 10.41% 0.75% 3.73% 7.15% 19.43% 33.07% 28.46% 7.25% 9.22% 13.44% 16.42% 12.59% -0.93% 12.16% -0.41% 4.73% 10.46%  32.30%  46.83%  12.63%  0.79%           
      qoq
    23.30% -16.41% -6.10% 5.30% 12.04% -9.02% -6.74% -3.09% 2.49% -4.58% -3.33% 4.95% 15.04% 5.88% -7.37% 15.09% 3.57% -3.06% -2.09% 15.33% 14.57% -15.17% 15.94% -14.08% 15.96% -0.92% -6.05% 15.52% 1.08% -6.20% 0.48% 10.28% -1.07% -6.20% 18.76% 0.95% 13.00% -12.39% 4.85% 3.78% 3.16% -15.25% 13.51% 11.26% -5.86% -12.75% 17.24% 24.01% 4.89% -15.77% -2.12% 26.29% 8.95% -13.56% -5.34% 11.13% 23.34% -23.25% -0.45% 17.21%                
      selling, general and administrative expenses
    57,767,000 58,260,000 59,931,000 57,136,000 54,330,000 53,295,000 56,747,000 60,817,000 60,594,000 60,068,000 60,564,000 59,858,000 59,668,000 51,282,000 52,723,000 55,009,000 53,635,000 52,136,000 52,586,000 50,887,000 47,330,000 47,331,000 44,069,000 41,551,000 51,248,000 44,180,000 44,255,000 43,784,000 40,702,000 37,940,000 38,523,000 39,668,000 38,896,000 40,042,000 37,328,000 34,522,000 34,063,000 35,655,000 33,699,000 34,137,000 33,988,000 34,342,000 33,939,000 34,230,000 33,409,000 32,661,000 33,914,000 32,490,000 27,499,000 28,240,000 27,830,000 26,530,000 25,173,000 24,434,000 23,992,000 24,836,000 24,245,000 23,340,000 22,762,000 23,685,000                
      amortization expense
    4,879,000 4,210,000 4,210,000 4,078,000 4,049,000 4,052,000 4,061,000 4,055,000 4,059,000 4,054,000 3,826,000 3,824,000 3,815,000 3,796,000 3,802,000 3,792,000 3,887,000 3,649,000 3,667,000 3,663,000 3,658,000 3,653,000 3,644,000 3,613,000                                                    
      income from operations
    42,159,000 22,531,000 37,542,000 47,078,000 44,462,000 34,441,000 40,079,000 43,309,000 46,979,000 44,798,000 49,753,000 54,392,000 49,024,000 42,717,000 35,840,000 40,916,000 29,119,000 27,867,000 30,043,000 33,590,000 25,438,000 15,725,000 30,923,000 22,661,000 23,856,000 18,238,000 24,455,000 29,349,000 22,606,000 24,692,000 28,249,000 26,786,000 21,361,000 20,869,000 27,611,000 20,157,000 20,101,000 12,278,000 21,012,000 18,041,000 16,289,000 14,395,000 23,570,000 16,435,000 12,128,000 15,711,000 21,526,000 14,796,000 10,631,000 8,111,000 15,326,000 17,561,000 9,739,000 6,953,000 13,078,000 14,325,000 10,993,000 11,077,000 14,461,000 13,706,000 9,341,000  6,467,000  3,177,000  5,362,000  3,065,000     5,209,000  
      yoy
    -5.18% -34.58% -6.33% 8.70% -5.36% -23.12% -19.44% -20.38% -4.17% 4.87% 38.82% 32.94% 68.36% 53.29% 19.30% 21.81% 14.47% 77.21% -2.85% 48.23% 6.63% -13.78% 26.45% -22.79% 5.53% -26.14% -13.43% 9.57% 5.83% 18.32% 2.31% 32.89% 6.27% 69.97% 31.41% 11.73% 23.40% -14.71% -10.85% 9.77% 34.31% -8.38% 9.50% 11.08% 14.08% 93.70% 40.45% -15.75% 9.16% 16.65% 17.19% 22.59% -11.41% -37.23% -9.56% 4.52% 17.69%  123.61%  194.02%  20.61%  3.65%           
      qoq
    87.12% -39.98% -20.26% 5.88% 29.10% -14.07% -7.46% -7.81% 4.87% -9.96% -8.53% 10.95% 14.76% 19.19% -12.41% 40.51% 4.49% -7.24% -10.56% 32.05% 61.77% -49.15% 36.46% -5.01% 30.80% -25.42% -16.68% 29.83% -8.45% -12.59% 5.46% 25.40% 2.36% -24.42% 36.98% 0.28% 63.72% -41.57% 16.47% 10.76% 13.16% -38.93% 43.41% 35.51% -22.81% -27.01% 45.49% 39.18% 31.07% -47.08% -12.73% 80.32% 40.07% -46.83% -8.71% 30.31% -0.76% -23.40% 5.51% 46.73%                
      interest expense
    -4,624,000 -4,102,000 -3,897,000 -3,684,000 -3,194,000 -3,473,000 -4,886,000 -6,098,000 -6,091,000 -6,587,000 -6,729,000 -6,837,000 -5,940,000 -4,791,000 -3,734,000 -3,189,000 -2,647,000 -2,406,000 -2,660,000 -2,854,000 -2,613,000 -2,916,000 -3,461,000 -3,941,000 -5,519,000 -5,525,000 -1,837,000 -1,935,000 -1,450,000 -1,260,000 -1,399,000 -1,497,000 -1,337,000 -598,000 -1,414,000 -1,500,000 -1,327,000 -1,580,000 -1,405,000 -1,523,000 -1,406,000 -1,582,000 -1,671,000 -1,848,000 -1,623,000 -1,257,000 -1,497,000 -1,044,000 -239,000 -264,000 -319,000 -336,000 -242,000 -260,000 -392,000 -525,000 -443,000 -707,000 -506,000 -444,000 -765,000  -1,250,000  -1,096,000  -1,835,000  -2,183,000     -631,000  
      interest income
    1,481,000 1,614,000 1,522,000 1,195,000 1,238,000 760,000 562,000 514,000 801,000 360,000 385,000 357,000 383,000 530,000 93,000 57,000 72,000 272,000 296,000 293,000 288,000 398,000 306,000 306,000 356,000 367,000 359,000 330,000 173,000 101,000 100,000 109,000 100,000 79,000 100,000 81,000 76,000 53,000 43,000 56,000 62,000 69,000 27,000 41,000 52,000 74,000 41,000 35,000 61,000 57,000 44,000 41,000 44,000 55,000 66,000 58,000 55,000 90,000 32,000 52,000 72,000  812,000  160,000  410,000  289,000     155,000  
      other income
    32,000 1,263,000 -210,000 -3,183,000 -663,000 2,730,000 -32,000 -65,000 98,000 1,667,000 138,000 -1,046,000 1,002,000 -200,000 1,413,000 -134,000 -1,752,000 -715,000 36,000 3,253,000 -630,000 -1,277,000 -333,000 -1,288,000 2,341,000 -353,000 242,000   -983,000 -265,000 -92,000 -134,000 416,000 -1,411,000 -665,000 -208,000 522,000 127,000 242,000 -622,000 4,631,000 895,000 488,000 860,000 719,000 421,000 153,000 474,000 436,000 558,000 343,000 289,000 139,000 -234,000 152,000 -574,000 253,000 817,000 -75,000 -147,000  -10,000  45,000  251,000  53,000     396,000  
      income before income taxes
    39,048,000 21,306,000 34,957,000 41,406,000 41,843,000 34,458,000 35,723,000 37,660,000 41,787,000 40,238,000 43,547,000 46,866,000 44,469,000 38,256,000 33,612,000 37,650,000 24,792,000 25,018,000 27,715,000 34,282,000 22,483,000 11,930,000 27,435,000 17,738,000 21,034,000 12,727,000 23,219,000 27,449,000 20,940,000 22,550,000 26,685,000 25,306,000 19,990,000 20,766,000 24,886,000 18,073,000 18,642,000 11,273,000 19,777,000 16,816,000 14,323,000 17,513,000 22,821,000 15,116,000 11,417,000 15,247,000 20,491,000 13,940,000 10,927,000 8,340,000 15,609,000 17,609,000 9,830,000 6,887,000 12,518,000 14,010,000 10,031,000 10,713,000 14,804,000 13,239,000 8,501,000  6,019,000  2,286,000  4,188,000  1,224,000     5,129,000  
      provision for income taxes
    9,864,000 5,794,000 9,574,000 10,300,000 10,043,000 6,377,000 8,318,000 9,336,000 9,667,000 8,715,000 8,632,000 10,492,000 11,120,000 9,091,000 7,791,000 9,178,000 6,322,000 5,791,000 10,196,000 8,245,000 5,021,000 3,850,000 7,402,000 4,749,000 5,506,000 3,159,000 5,801,000 6,782,000 5,687,000 5,961,000 3,142,000 6,535,000 5,407,000 17,526,000 8,294,000 5,757,000 6,475,000 3,685,000 6,541,000 6,254,000 5,664,000 6,129,000 8,065,000 5,406,000 4,058,000 3,896,000 7,124,000 4,745,000 3,689,000 2,316,000 4,276,000 5,822,000 2,880,000 2,688,000 3,943,000 4,666,000 3,246,000      2,026,000      391,000     1,861,000  
      net income
    29,184,000 15,512,000 25,383,000 31,106,000 31,800,000 28,081,000 27,405,000 28,324,000 32,120,000 31,523,000 34,915,000 36,374,000 33,349,000 29,165,000 25,821,000 28,472,000 18,470,000 19,227,000 17,519,000 26,037,000 17,462,000 8,080,000 20,033,000 12,989,000 15,528,000 9,568,000 17,418,000 20,667,000 15,253,000 16,589,000 23,543,000 18,771,000 14,583,000 3,240,000 16,592,000 12,316,000 12,167,000 7,588,000 13,236,000 10,562,000 8,659,000 11,384,000 14,756,000 9,710,000 7,359,000 11,351,000 13,367,000 9,195,000 7,238,000 6,024,000 11,333,000 11,787,000 6,950,000 4,199,000 8,575,000 9,344,000 6,785,000 7,433,000 10,056,000 8,914,000 5,667,000  3,993,000  1,543,000  2,832,000  833,000     3,268,000  
      yoy
    -8.23% -44.76% -7.38% 9.82% -1.00% -10.92% -21.51% -22.13% -3.69% 8.09% 35.22% 27.75% 80.56% 51.69% 47.39% 9.35% 5.77% 137.96% -12.55% 100.45% 12.45% -15.55% 15.01% -37.15% 1.80% -42.32% -26.02% 10.10% 4.59% 412.01% 41.89% 52.41% 19.86% -57.30% 25.36% 16.61% 40.51% -33.35% -10.30% 8.77% 17.67% 0.29% 10.39% 5.60% 1.67% 88.43% 17.95% -21.99% 4.14% 43.46% 32.16% 26.15% 2.43% -43.51% -14.73% 4.82% 19.73%  151.84%  267.27%  41.00%  85.23%           
      qoq
    88.14% -38.89% -18.40% -2.18% 13.24% 2.47% -3.24% -11.82% 1.89% -9.72% -4.01% 9.07% 14.35% 12.95% -9.31% 54.15% -3.94% 9.75% -32.71% 49.11% 116.11% -59.67% 54.23% -16.35% 62.29% -45.07% -15.72% 35.49% -8.05% -29.54% 25.42% 28.72% 350.09% -80.47% 34.72% 1.22% 60.35% -42.67% 25.32% 21.98% -23.94% -22.85% 51.97% 31.95% -35.17% -15.08% 45.37% 27.04% 20.15% -46.85% -3.85% 69.60% 65.52% -51.03% -8.23% 37.72% -8.72% -26.08% 12.81% 57.30%                
      net income per common share:
                                                                               
      basic
    2,420 1,290 2,110 2,590 2,650 2,350 2,290 2,360 2,690 2,640 2,930 3,050 2,800 2,450 2,180 2,390 1,560 1,620 1,480 2,200 1,480 690 1,700 1,100 1,320 810 1,480 1,760 1,300 1,420 2,010 1,610 1,260 280 1,430 1,070 1,060 660 1,150 930 760 1,000 1,300 860 650 1,000 1,110 760 600 500 940 980 580 350 720 790 570 630 850 750 480  340  160  290  90     340  
      diluted
    2,410 1,280 2,100 2,570 2,640 2,330 2,280 2,350 2,670 2,630 2,910 3,030 2,790 2,440 2,160 2,390 1,550 1,620 1,470 2,190 1,470 680 1,690 1,100 1,310 810 1,470 1,750 1,300 1,410 2,000 1,600 1,240 270 1,420 1,050 1,050 650 1,140 920 750 990 1,280 840 640 990 1,100 750 590 490 930 970 570 350 710 770 560 620 840 740 470  340  150  290  80     330  
      average common shares:
                                                                               
      basic
    12,051,000 5,000 12,029,000 12,020,000 11,990,000 3,000 11,977,000 11,974,000 11,944,000 4,000 11,928,000 11,921,000 11,899,000 2,000 11,883,000 11,880,000 11,860,000 2,000 11,842,000 11,842,000 11,820,000 6,000 11,788,000 11,778,000 11,761,000 5,000 11,748,000 11,726,000 11,698,000 11,000 11,689,000 11,652,000 11,606,000 14,000 11,586,000 11,547,000 11,472,000 10,000 11,460,000 11,422,000 11,389,000 12,000 11,380,000 11,352,000 11,280,000 -202,000 12,050,000 12,097,000 12,084,000 10,000 12,069,000 12,044,000 12,006,000 12,000 11,903,000 11,884,000 11,873,000 3,000 11,857,000 11,845,000 11,832,000  11,747,000  9,939,000  9,797,000  9,765,000     9,718,000  
      diluted
    12,103,000 2,000 12,094,000 12,083,000 12,048,000 2,000 12,041,000 12,044,000 12,020,000 4,000 11,996,000 11,993,000 11,962,000 2,000 11,941,000 11,938,000 11,916,000 1,000 11,900,000 11,902,000 11,882,000 5,000 11,851,000 11,842,000 11,827,000 4,000 11,813,000 11,798,000 11,777,000 3,000 11,777,000 11,759,000 11,739,000 16,000 11,708,000 11,671,000 11,620,000 14,000 11,595,000 11,550,000 11,507,000 5,000 11,496,000 11,498,000 11,436,000 -212,000 12,206,000 12,276,000 12,270,000 16,000 12,229,000 12,200,000 12,158,000 11,000 12,056,000 12,058,000 12,027,000 2,000 11,947,000 11,966,000 11,980,000  11,833,000  9,963,000  9,921,000  9,947,000     9,767,000  
      dividends declared
    340 225 300 300 300 195 260 260 260 165 220 220 220 135 180 180 180 105 140 140 140 97.5 130 130 130 90 120 120 120 82.5 110 110 110 75 100 100 100 67.5 90 90 90 60 80 80 80 52.5 70 70 70 52.5 70 70 70 45 60 60 60 45 60 60 60  60  60  60  60     60  
      industrial
                     165,526,500 218,988,000 231,207,000 211,911,000 202,688,000 196,241,000 182,257,000 229,975,000 283,530,000 158,499,000 168,000,000 158,425,000 160,011,000 156,721,000 150,031,000 132,167,000 147,160,000 132,388,000 117,342,000 125,816,000 122,459,000 121,205,000 117,146,000 123,278,000 135,943,000 127,385,000 118,521,000 116,912,000 127,670,000 125,952,000 105,082,000 77,314,000 77,754,000 71,890,000 77,639,000 69,334,000 66,512,000 61,972,000 70,137,000 64,732,000 64,275,000 56,965,000 59,321,000 49,033,000  46,140,000  43,152,000  62,612,000  58,057,000     29,460,000  
      agricultural
                     83,736,000 119,323,000 116,343,000 99,278,000 85,936,000 95,518,000 86,378,000 84,473,000 182,555,000 59,797,000 55,159,000 53,173,000 55,887,000 61,464,000 59,071,000 58,647,000 56,468,000 64,923,000 54,221,000 51,777,000 48,884,000 56,443,000 51,845,000 48,662,000 47,900,000 58,919,000 52,981,000 48,457,000 54,182,000 57,668,000 52,631,000 49,845,000 47,292,000 61,157,000 57,255,000 49,636,000 44,980,000 54,135,000 53,081,000 48,271,000 43,483,000 55,301,000 55,470,000 49,739,000  40,299,000  23,831,000  32,503,000  29,394,000     26,750,000  
      amortization expenses
                            3,836,000                                                   
      european
                             41,474,000 53,533,000 62,027,000 50,336,000 40,140,000 39,387,000 48,023,000 47,273,000 39,632,000 43,144,000 41,713,000 37,796,000 34,179,000 39,118,000 42,498,000 39,031,000 40,588,000 45,310,000 44,232,000 42,429,000 46,425,000 49,555,000 48,640,000 44,091,000 40,559,000 41,691,000 43,170,000 39,459,000 37,912,000 39,971,000 43,791,000 42,908,000 39,239,000 42,791,000 46,033,000 41,943,000  41,950,000  43,160,000  38,666,000  32,696,000     17,326,000  
      other expense
                               -295,000 -389,000                                               
      north american
                                                                               
      benefit from income taxes
                                                             2,976,750 4,748,000 4,325,000 2,834,000    743,000  1,356,000         
      selling, general and administrative expense
                                                                22,560,000  21,668,000  18,550,000  19,619,000  18,492,000     11,635,000  
      average common shares
                                                                               
      basic
    12,051,000 5,000 12,029,000 12,020,000 11,990,000 3,000 11,977,000 11,974,000 11,944,000 4,000 11,928,000 11,921,000 11,899,000 2,000 11,883,000 11,880,000 11,860,000 2,000 11,842,000 11,842,000 11,820,000 6,000 11,788,000 11,778,000 11,761,000 5,000 11,748,000 11,726,000 11,698,000 11,000 11,689,000 11,652,000 11,606,000 14,000 11,586,000 11,547,000 11,472,000 10,000 11,460,000 11,422,000 11,389,000 12,000 11,380,000 11,352,000 11,280,000 -202,000 12,050,000 12,097,000 12,084,000 10,000 12,069,000 12,044,000 12,006,000 12,000 11,903,000 11,884,000 11,873,000 3,000 11,857,000 11,845,000 11,832,000  11,747,000  9,939,000  9,797,000  9,765,000     9,718,000  
      diluted
    12,103,000 2,000 12,094,000 12,083,000 12,048,000 2,000 12,041,000 12,044,000 12,020,000 4,000 11,996,000 11,993,000 11,962,000 2,000 11,941,000 11,938,000 11,916,000 1,000 11,900,000 11,902,000 11,882,000 5,000 11,851,000 11,842,000 11,827,000 4,000 11,813,000 11,798,000 11,777,000 3,000 11,777,000 11,759,000 11,739,000 16,000 11,708,000 11,671,000 11,620,000 14,000 11,595,000 11,550,000 11,507,000 5,000 11,496,000 11,498,000 11,436,000 -212,000 12,206,000 12,276,000 12,270,000 16,000 12,229,000 12,200,000 12,158,000 11,000 12,056,000 12,058,000 12,027,000 2,000 11,947,000 11,966,000 11,980,000  11,833,000  9,963,000  9,921,000  9,947,000     9,767,000  
    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 2007-06-30 2007-03-31 2006-12-31 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 2003-06-30 2003-03-31 2002-12-31 2002-09-30 
                                                                                                 
        assets
                                                                                                 
        current assets:
                                                                                                 
        cash and cash equivalents
      195,234,000 309,659,000 244,806,000 201,823,000 200,274,000 197,274,000 140,038,000 118,535,000 121,802,000 51,919,000 113,534,000 112,061,000 109,320,000 47,016,000 75,308,000 75,894,000 84,277,000 42,115,000 89,189,000 85,630,000 105,265,000 50,195,000 93,515,000 82,002,000 84,425,000 42,311,000 60,279,000 48,190,000 39,023,000 34,043,000 48,880,000 43,602,000 75,850,000 25,373,000 69,068,000 74,637,000 70,662,000 16,793,000 56,485,000 44,972,000 49,654,000 26,922,000 42,657,000 34,522,000 36,661,000 39,533,000 38,644,000 37,359,000 42,253,000 63,960,000 53,603,000 17,841,000 33,491,000 48,291,000 38,313,000 33,520,000 37,858,000 10,288,000 25,279,000 26,145,000 28,383,000 30,243,000 24,382,000 20,152,000 21,027,000 17,774,000 13,474,000 6,074,000 4,235,000 4,532,000 5,447,000 3,334,000 22,653,000 4,459,000 8,854,000 10,334,000 2,169,000 8,741,000 7,073,000 14,456,000 7,985,000 8,537,000 2,580,000 7,135,000 4,775,000 7,354,000 3,281,000 2,830,000 1,838,000 5,583,000  
        accounts receivable
      334,956,000 276,866,000 335,210,000 356,236,000 339,596,000 305,561,000 356,617,000 388,512,000 392,940,000 362,007,000 378,107,000 378,675,000 363,525,000 317,581,000 301,919,000 306,967,000 296,857,000 237,970,000 245,517,000 253,179,000 242,971,000 209,276,000 217,276,000 229,714,000 248,773,000 237,837,000 243,296,000 267,064,000 269,785,000 228,098,000 227,828,000 238,126,000 234,747,000 205,767,000 203,068,000 200,223,000 196,244,000 170,329,000 174,047,000 196,901,000 195,692,000 178,305,000 175,940,000 194,942,000 193,176,000 175,008,000 178,072,000 201,930,000 183,361,000 151,396,000 161,704,000 178,993,000 169,678,000 140,268,000 153,834,000 169,974,000 170,391,000 143,934,000 148,285,000 169,695,000 154,614,000 127,388,000 127,610,000 134,832,000 135,295,000 111,745,000 104,156,000 124,733,000 132,747,000 124,197,000 128,323,000 149,809,000 138,564,000 109,260,000 123,628,000 125,024,000 97,825,000 119,965,000 85,368,000 87,878,000 108,531,000 107,755,000 82,337,000 71,972,000 91,421,000 91,254,000 64,263,000 77,696,000 80,015,000 59,720,000  
        inventories
      425,538,000 383,252,000 378,166,000 372,074,000 356,406,000 343,363,000 371,999,000 385,136,000 384,488,000 377,480,000 371,748,000 369,319,000 362,593,000 352,553,000 362,713,000 352,915,000 355,389,000 320,917,000 294,270,000 264,540,000 250,250,000 229,971,000 243,529,000 248,706,000 273,648,000 267,674,000 206,516,000 205,910,000 211,355,000 176,630,000 184,018,000 174,836,000 168,211,000 155,568,000 159,571,000 153,150,000 141,408,000 135,760,000 154,604,000 159,840,000 156,572,000 150,758,000 174,423,000 175,440,000 170,294,000 166,088,000 183,797,000 182,148,000 123,932,000 109,104,000 121,639,000 120,978,000 118,224,000 108,758,000 119,578,000 122,781,000 127,989,000 114,305,000 116,137,000 122,181,000 117,460,000 99,304,000 104,433,000 108,944,000 118,860,000 124,322,000 113,194,000 125,114,000 130,750,000 132,248,000 132,989,000 134,709,000 121,788,000 118,285,000 128,909,000 126,771,000 116,175,000 109,144,000 77,013,000 81,056,000 84,304,000 81,673,000 72,757,000 73,911,000 73,420,000 70,931,000 63,579,000 66,064,000 66,469,000 63,512,000  
        prepaid expenses and other current assets
      15,820,000 11,629,000 9,758,000 12,461,000 14,931,000 11,206,000 10,899,000 14,830,000 16,226,000 12,497,000 9,226,000 10,979,000 9,660,000 9,144,000 7,443,000 11,095,000 12,531,000 9,500,000 6,741,000 9,164,000 9,296,000 7,382,000 7,064,000 7,625,000 10,243,000 10,099,000 7,771,000 6,690,000 6,906,000                                                               
        income tax receivable
      12,023,000 16,687,000 11,453,000  27,000 91,000 51,000 463,000 75,000 54,000 750,000 937,000 318,000 916,000 3,242,000 1,432,000 209,000 1,666,000 66,000 10,007,000 4,051,000 6,186,000 5,771,000 4,066,000 6,878,000 12,907,000 6,615,000 8,250,000 4,918,000 8,745,000 4,460,000 5,345,000 1,306,000 483,000 985,000 4,493,000 243,000 11,000 2,970,000 1,631,000 1,360,000 1,491,000  556,000 449,000 3,546,000  915,000 1,623,000 1,623,000     509,000 937,000 937,000 937,000 448,000 448,000 448,000 448,000  1,195,000 1,195,000 1,195,000                          
        total current assets
      983,571,000 998,093,000 979,393,000 942,594,000 911,234,000 857,495,000 879,604,000 907,476,000 915,531,000 803,957,000 873,365,000 871,971,000 845,416,000 727,210,000 750,625,000 748,303,000 749,263,000 612,168,000 635,783,000 622,520,000 611,833,000 503,010,000 567,155,000 572,113,000 623,967,000 570,828,000 524,477,000 536,104,000 531,987,000 452,843,000 471,308,000 468,680,000 487,924,000 392,527,000 438,162,000 437,990,000 413,560,000 327,618,000 392,695,000 408,272,000 408,412,000 362,886,000 404,207,000 417,452,000 412,080,000 393,302,000 414,274,000 436,139,000 364,207,000 336,953,000 348,074,000 326,821,000 330,582,000 306,800,000 320,587,000 334,823,000 345,542,000 276,123,000 299,241,000 327,011,000 309,136,000 265,060,000 263,195,000 272,481,000 284,033,000 261,733,000 236,501,000 261,675,000 273,329,000 266,025,000 272,261,000 293,114,000 288,164,000 236,969,000 266,508,000 267,136,000 220,771,000 244,158,000 174,081,000 187,873,000 205,450,000 203,314,000 162,235,000 160,816,000 178,502,000 175,295,000 135,674,000 152,638,000 155,015,000 134,690,000  
        rental equipment
      60,273,000 61,102,000 61,558,000 59,606,000 57,198,000 52,942,000 47,260,000 46,630,000 43,102,000 39,264,000 38,431,000 36,375,000 36,125,000 33,723,000 33,156,000 31,168,000 31,850,000 32,514,000 36,244,000 38,619,000 39,693,000 42,266,000 44,774,000 48,583,000 52,045,000 56,467,000 56,177,000 51,517,000 49,342,000 43,978,000 40,461,000 37,057,000 32,751,000 28,493,000 31,044,000 31,441,000 28,047,000 30,970,000 32,506,000 34,063,000 33,994,000 37,564,000 42,214,000 44,437,000 36,779,000 33,631,000 28,927,000 29,160,000                                            
        property, plant and equipment
      386,659,000 392,029,000 380,895,000 371,621,000 373,872,000 365,608,000 373,939,000 371,699,000 369,233,000 365,960,000 357,234,000 352,233,000 341,516,000 335,078,000 325,283,000 325,911,000 324,236,000 321,863,000 316,347,000 314,580,000 313,757,000 312,362,000 307,480,000 302,219,000 297,729,000 302,113,000 243,777,000 243,489,000 236,692,000 219,135,000 214,175,000 207,827,000 210,681,000 202,293,000 196,837,000 190,228,000 182,670,000 180,041,000 179,727,000 180,994,000 180,158,000 178,044,000 172,908,000 173,592,000 168,297,000 171,667,000 173,071,000 177,235,000 160,926,000 158,376,000 154,884,000 149,995,000 147,241,000 146,454,000 147,526,000 146,986,000 150,106,000 147,576,000 143,004,000 144,952,000 143,065,000 139,674,000 139,784,000 138,075,000 140,433,000 142,076,000 130,138,000 128,486,000 125,889,000 125,952,000 128,434,000 135,310,000 128,201,000 124,665,000 118,429,000 115,160,000 111,159,000 105,781,000 95,318,000 95,867,000 96,703,000 94,916,000 94,489,000 91,869,000 91,864,000 96,208,000 82,218,000 77,467,000 75,810,000 75,160,000  
        less: accumulated depreciation
      -223,852,000 -226,052,000 -215,008,000 -210,905,000 -214,689,000 -207,276,000 -210,565,000 -210,096,000 -204,423,000 -199,300,000 -192,715,000 -188,799,000 -183,128,000 -180,071,000 -172,221,000 -172,004,000 -172,552,000 -169,372,000 -168,557,000 -165,200,000 -160,970,000 -156,928,000 -152,276,000 -146,009,000 -141,349,000 -141,388,000 -136,838,000 -138,022,000 -134,955,000 -131,905,000 -130,606,000 -128,090,000 -129,196,000 -125,629,000 -122,842,000 -118,995,000 -116,145,000 -113,412,000 -111,377,000 -110,321,000 -109,854,000 -107,094,000 -105,791,000 -104,201,000 -100,565,000 -100,497,000 -100,655,000 -101,907,000 -99,374,000 -96,472,000 -94,251,000 -91,503,000 -90,519,000 -89,653,000 -89,883,000 -88,269,000 -88,582,000 -86,034,000 -85,297,000 -84,490,000 -81,863,000 -78,490,000 -76,896,000 -74,848,000 -73,871,000 -72,215,000 -70,265,000 -68,124,000 -66,531,000 -64,168,000 -63,905,000 -66,231,000 -64,572,000 -61,513,000 -57,465,000 -55,686,000 -53,788,000 -52,339,000 -52,790,000 -53,018,000 -53,034,000 -53,045,000 -51,435,000 -51,755,000 -51,373,000 -55,469,000 -49,991,000 -46,570,000 -44,775,000 -43,431,000  
        total property, plant and equipment
      162,807,000 165,977,000 165,887,000 160,716,000 159,183,000 158,332,000 163,374,000 161,603,000 164,810,000 166,660,000 164,519,000 163,434,000 158,388,000 155,007,000 153,062,000 153,907,000 151,684,000 152,491,000 147,790,000 149,380,000 152,787,000 155,434,000 155,204,000 156,210,000 156,380,000 160,725,000 106,939,000 105,467,000 101,737,000                                                               
        goodwill
      266,610,000 214,611,000 214,429,000 221,607,000 204,582,000 203,027,000 206,458,000 204,766,000 205,452,000 206,536,000 195,863,000 197,445,000 196,533,000 195,858,000 192,946,000 196,068,000 198,726,000 202,406,000 193,572,000 194,936,000 194,025,000 195,132,000 192,976,000 195,457,000 195,561,000 198,022,000 93,468,000 93,134,000 88,821,000 83,243,000 83,716,000 83,972,000 85,033,000 84,761,000 86,364,000 82,430,000 75,298,000 74,825,000 75,883,000 75,919,000 76,397,000 75,509,000 76,082,000 77,389,000 72,831,000 72,407,000 71,996,000 73,594,000 31,980,000 32,073,000 31,814,000 30,923,000 30,870,000 31,648,000 32,019,000 31,558,000 32,365,000 31,751,000 33,949,000 35,636,000 35,281,000 34,073,000 34,598,000 32,607,000 34,341,000 35,207,000 49,449,000 48,696,000 46,987,000 48,107,000 55,507,000 58,657,000 43,947,000 43,946,000 43,118,000 42,725,000 42,336,000 40,246,000 26,416,000 26,626,000 26,394,000 27,103,000 23,067,000 21,963,000 21,541,000 22,281,000 21,677,000 20,911,000 20,167,000 19,873,000  
        intangible assets
      225,691,000 144,932,000 147,322,000 145,040,000 147,899,000 151,360,000 156,399,000 159,708,000 163,909,000 168,296,000 159,884,000 164,376,000 167,832,000 171,341,000 173,508,000 178,781,000 182,305,000 183,466,000 181,516,000 185,581,000 188,955,000 193,172,000 195,966,000 198,925,000 202,344,000 206,272,000 59,205,000 62,725,000 63,568,000 48,857,000 49,763,000 50,636,000 51,888,000 52,872,000 54,739,000 55,353,000 49,302,000 50,038,000 50,921,000 51,724,000 52,472,000 52,950,000 53,908,000 55,010,000 55,709,000 56,984,000 62,028,000 63,161,000 5,500,000 5,500,000 5,500,000 5,500,000 5,500,000 5,500,000 5,500,000 5,500,000 5,500,000 5,500,000 5,500,000 5,500,000 5,500,000 5,500,000 5,744,000 5,763,000 5,783,000 5,803,000 3,923,000 3,942,000 3,962,000 3,982,000 4,003,000 4,029,000 4,055,000 4,081,000  4,159,000 4,185,000               
        deferred income taxes
      1,264,000 1,264,000 1,119,000 1,118,000 1,118,000 1,118,000 1,450,000 1,402,000 1,388,000 1,375,000 904,000 1,053,000 983,000 969,000 1,043,000 1,006,000 1,054,000 1,110,000 2,004,000 674,000 1,080,000 1,203,000 1,675,000 815,000 1,026,000 1,078,000 1,060,000 961,000 1,893,000 1,783,000 1,553,000 1,545,000 2,497,000 992,000 732,000 652,000 665,000 619,000 1,692,000 1,601,000 1,897,000  6,171,000 7,304,000 5,735,000 4,712,000 6,515,000 6,071,000 5,880,000 5,741,000 5,245,000 3,622,000 3,742,000 3,824,000 3,423,000 3,381,000 3,455,000 3,502,000 4,677,000 3,897,000 3,786,000 3,813,000 2,232,000 3,559,000 3,105,000 3,118,000 2,513,000 2,646,000 2,645,000 2,671,000 1,946,000 1,977,000 2,054,000 2,131,000 2,375,000 2,368,000 2,293,000 2,296,000 2,296,000 2,168,000 2,075,000 2,089,000 2,094,000 4,201,000 4,200,000 4,207,000 2,465,000 4,418,000 4,406,000 4,282,000  
        other non-current assets
      27,228,000 20,637,000 25,271,000 26,968,000 23,480,000 26,005,000 26,796,000 24,385,000 25,228,000 23,298,000 22,548,000 23,105,000 23,935,000 24,400,000 23,451,000 23,143,000 23,133,000 21,587,000 20,869,000 17,116,000 17,780,000 19,112,000 15,709,000 17,585,000 18,553,000 19,371,000 15,067,000 16,671,000 14,905,000                                                               
        total assets
      1,727,444,000 1,606,616,000 1,594,979,000 1,557,649,000 1,504,694,000 1,450,279,000 1,481,341,000 1,505,970,000 1,519,420,000 1,409,386,000 1,455,514,000 1,457,759,000 1,429,212,000 1,308,508,000 1,327,791,000 1,332,376,000 1,338,015,000 1,205,742,000 1,217,778,000 1,208,826,000 1,206,153,000 1,109,329,000 1,173,459,000 1,189,688,000 1,249,876,000 1,212,763,000 856,393,000 866,579,000 852,253,000 721,633,000 734,773,000 725,379,000 745,894,000 639,671,000 686,569,000 680,864,000 635,139,000 552,776,000 624,882,000 645,328,000 646,352,000 603,503,000 644,922,000 665,237,000 647,496,000 629,602,000 654,340,000 682,162,000 465,443,000 438,476,000 449,644,000 425,170,000 427,240,000 404,339,000 419,222,000 436,614,000 451,045,000 380,935,000 402,203,000 434,527,000 416,922,000 370,983,000 370,295,000 378,803,000 395,970,000 377,963,000 353,938,000 378,873,000 387,953,000 384,354,000 398,283,000 426,836,000 401,335,000 350,630,000 376,553,000 374,809,000 326,634,000 341,337,000 246,216,000 260,416,000 278,462,000 275,782,000 231,730,000 226,379,000 244,768,000 243,406,000 194,224,000 209,221,000 210,975,000 191,222,000  
        liabilities and stockholders’ equity
                                                                                                 
        current liabilities:
                                                                                                 
        trade accounts payable
      141,662,000 125,130,000 129,297,000 111,820,000 104,977,000 84,505,000 97,259,000 102,947,000 103,409,000 99,678,000 110,944,000 116,287,000 101,549,000 97,537,000 100,886,000 107,003,000 114,312,000 101,396,000 107,059,000 104,715,000 93,899,000 75,317,000 82,071,000 63,417,000 88,891,000 81,986,000 69,009,000 67,391,000 70,251,000 54,083,000 71,944,000 63,322,000 61,830,000 55,825,000 59,212,000 57,164,000 54,361,000 43,136,000 48,504,000 55,702,000 54,903,000 45,486,000 60,952,000 60,806,000 57,475,000 47,741,000 68,701,000 65,905,000 66,335,000 45,593,000 55,911,000 53,602,000 55,546,000 41,641,000 47,516,000 49,998,000 54,353,000 40,782,000 47,029,000 56,303,000 53,119,000 45,152,000 46,195,000 46,892,000 44,402,000 36,046,000 38,646,000 45,308,000 49,420,000 54,598,000 64,876,000 65,414,000 48,619,000 39,248,000 50,397,000 48,952,000 34,019,000 52,226,000 26,518,000 30,329,000 32,293,000 30,852,000 26,773,000 26,514,000 30,762,000 28,913,000 18,098,000 21,407,000 20,817,000 15,216,000  
        income taxes payable
      2,704,000 2,332,000  3,973,000 18,725,000 13,259,000 15,687,000 12,829,000 17,596,000 12,529,000 13,695,000 11,284,000 14,801,000 6,592,000 5,218,000 1,498,000 867,000 2,613,000 6,425,000 2,724,000 2,749,000 2,278,000 3,625,000 2,619,000 2,079,000 2,362,000 2,516,000 1,926,000 2,019,000 2,865,000   5,537,000 5,002,000 2,445,000 2,210,000 6,924,000 2,333,000 2,150,000 1,159,000 1,076,000 1,320,000 1,131,000 338,000 420,000 52,000 3,111,000 1,369,000 1,947,000 1,126,000 1,869,000 2,214,000 2,935,000 4,045,000 4,170,000 2,001,000 3,314,000 2,362,000 3,139,000  1,584,000 1,567,000 244,000 77,000 2,566,000 2,688,000 3,305,000 1,971,000 821,000 841,000 2,296,000 2,301,000 1,666,000 2,289,000 293,000 -1,101,000 -1,310,000 785,000 807,000 1,548,000 979,000 1,891,000 1,204,000 3,280,000 3,306,000 2,182,000 1,724,000 353,000 -661,000 79,000  
        accrued liabilities
      68,466,000 75,905,000 76,770,000 76,113,000 73,006,000 77,537,000 84,061,000 76,772,000 77,349,000 86,711,000 79,682,000 72,266,000 72,890,000 71,368,000 71,820,000 66,100,000 68,315,000 73,523,000 67,183,000 62,107,000 60,681,000 64,634,000 56,916,000 52,615,000 52,923,000 59,686,000 48,525,000 47,707,000 42,490,000 43,785,000 38,297,000 37,312,000 33,304,000 40,454,000 35,822,000 35,994,000 27,287,000 33,158,000 32,567,000 33,081,000 30,360,000 38,141,000 37,413,000 36,060,000 37,947,000 41,002,000 44,391,000 45,228,000 32,473,000 33,482,000 36,170,000 31,348,000 30,941,000 31,601,000 31,962,000 29,982,000 28,995,000 30,716,000 29,377,000 30,601,000 33,179,000 29,813,000 32,684,000 32,639,000 31,954,000 32,013,000 28,895,000 28,755,000 25,942,000 26,059,000 29,744,000 34,219,000 23,653,000 22,673,000 24,859,000 24,002,000 23,755,000 22,885,000 18,608,000 18,869,000 18,632,000 19,139,000 18,114,000 19,787,000 19,615,000 17,492,000 13,269,000 13,082,000 11,815,000 12,680,000  
        current maturities of long-term debt and finance lease obligations
      15,000,000 15,000,000 15,000,000 15,000,000 15,009,000 15,008,000 15,009,000 15,008,000 15,008,000 15,008,000 15,008,000 15,008,000 15,008,000 15,009,000 15,010,000 15,015,000 15,022,000 15,032,000 15,059,000 15,069,000 15,078,000 15,066,000 15,068,000 15,072,000 18,826,000 18,840,000 113,000 131,000 134,000                                                               
        total current liabilities
      227,832,000 218,367,000 221,067,000 206,906,000 211,717,000 190,309,000 212,016,000 207,556,000 213,362,000 213,926,000 219,329,000 214,845,000 204,248,000 190,506,000 192,934,000 189,616,000 198,516,000 192,564,000 195,726,000 184,615,000 172,407,000 157,295,000 157,680,000 133,723,000 162,719,000 162,874,000 120,163,000 117,155,000 114,894,000 100,852,000 110,430,000 100,651,000 100,946,000 101,363,000 97,755,000 95,448,000 89,108,000 78,700,000 84,593,000 91,153,000 86,414,000 85,024,000 100,271,000 98,054,000 96,353,000 89,367,000 117,939,000 114,627,000 101,894,000 80,621,000 94,692,000 87,922,000 90,239,000 78,128,000 84,711,000 83,435,000 90,583,000 75,693,000 80,798,000 88,694,000 89,840,000 79,189,000 82,501,000 85,192,000 87,520,000 79,364,000 76,269,000 79,947,000 81,563,000 85,684,000 100,293,000 107,409,000 78,570,000 67,578,000 78,825,000 76,113,000 59,803,000 80,422,000 48,930,000 52,816,000 54,426,000 56,143,000 49,052,000 51,784,000 56,771,000 52,246,000 34,706,000 36,968,000 76,516,000 30,558,000  
        long-term debt and finance lease obligations, net of current maturities
      275,467,000 190,748,000 194,430,000 198,115,000 201,789,000 205,473,000 209,157,000 278,591,000 306,525,000 220,269,000 308,892,000 332,576,000 356,259,000 286,943,000 348,463,000 356,149,000 357,834,000 254,522,000 279,215,000 299,910,000 338,605,000 270,320,000 359,021,000 423,723,000 471,429,000 425,141,000 150,192,000 166,232,000 180,234,000                                                               
        long-term tax liability
      470,000 470,000 471,000 626,000 626,000 626,000 708,000 490,000 2,633,000 2,634,000 2,634,000 2,464,000 3,781,000 3,781,000 3,781,000 2,444,000 4,416,000 4,416,000 4,408,000 4,408,000 4,408,000 3,954,000 6,778,000 6,778,000 6,778,000 7,432,000 6,710,000 6,378,000 6,378,000 6,120,000 7,347,000 12,316,000 12,316,000 12,316,000                                                          
        other long-term liabilities
      24,964,000 24,113,000 24,423,000 25,975,000 24,201,000 24,619,000 28,886,000 23,964,000 24,335,000 23,694,000 22,171,000 22,804,000 23,628,000 23,668,000 24,821,000 24,642,000 25,908,000 27,119,000 28,095,000 26,921,000 27,600,000 30,744,000 25,817,000 25,361,000 25,307,000 19,254,000 14,190,000 14,340,000 13,127,000 8,436,000 7,474,000 7,415,000 7,391,000 7,291,000 7,522,000 7,407,000 7,106,000 6,969,000 5,935,000 5,843,000 5,879,000 5,782,000 6,084,000 5,940,000 5,645,000 5,656,000 3,843,000 3,756,000 3,540,000 3,494,000 3,710,000 3,765,000 3,693,000 3,646,000 4,496,000 4,453,000 4,383,000 4,319,000 3,862,000 4,110,000 4,079,000 2,109,000 2,348,000 2,252,000 2,310,000 3,665,000 4,144,000 4,422,000 4,797,000 5,139,000 3,934,000 4,042,000 5,424,000 4,100,000 2,722,000 2,752,000 2,614,000 2,283,000              
        total liabilities
      554,520,000 457,913,000 462,373,000 442,253,000                                                                                        
        stockholders’ equity:
                                                                                                 
        common stock
      1,210,000 1,207,000 1,207,000 1,206,000 1,205,000 1,202,000 1,201,000 1,201,000 1,200,000 1,196,000 1,196,000 1,196,000 1,194,000 1,191,000 1,191,000 1,191,000 1,189,000 1,187,000 1,187,000 1,186,000 1,184,000 1,181,000 1,180,000 1,179,000 1,176,000 1,175,000 1,175,000 1,174,000 1,167,000 1,166,000 1,166,000 1,165,000 1,158,000 1,158,000 1,156,000 1,156,000 1,150,000 1,146,000 1,146,000 1,145,000 1,141,000 1,139,000 1,139,000 1,139,000 1,132,000 1,130,000 1,129,000 1,213,000 1,213,000 1,211,000 1,211,000 1,209,000 1,206,000 1,203,000 1,195,000 1,193,000 1,191,000 1,190,000 1,190,000 1,190,000 1,188,000 1,187,000 1,185,000 1,182,000 1,179,000 1,179,000 1,009,000 1,005,000 1,001,000 996,000 996,000 986,000 984,000 984,000 982,000 981,000 980,000 979,000 979,000 979,000 979,000 979,000 978,000 978,000 977,000 977,000 977,000 976,000 976,000 976,000 976,000 
        additional paid-in-capital
      156,887,000  153,704,000 151,120,000 147,907,000  144,616,000 142,147,000 139,022,000  135,571,000 133,598,000 131,657,000  128,780,000 127,180,000 125,681,000  123,446,000 121,253,000 120,541,000  117,339,000 115,594,000 114,967,000  112,629,000 111,476,000 109,285,000  107,737,000 106,794,000 104,588,000  102,913,000 102,355,000 100,695,000  99,222,000 98,616,000 97,378,000  96,610,000 96,245,000 94,298,000  93,097,000 93,431,000 91,989,000  91,046,000 90,165,000 89,414,000  86,963,000 86,552,000 85,938,000  85,401,000 85,172,000                                
        treasury stock
      -4,566,000 -4,566,000 -4,566,000 -4,566,000 -4,566,000 -4,566,000 -4,566,000 -4,566,000 -4,566,000 -4,566,000 -4,566,000 -4,566,000 -4,566,000 -4,566,000 -4,566,000 -4,566,000 -4,566,000 -4,566,000 -4,566,000 -4,566,000 -4,566,000 -4,566,000 -4,566,000 -4,566,000 -4,566,000 -4,566,000 -4,566,000 -3,381,000 -1,916,000 -426,000 -426,000 -426,000 -426,000 -426,000 -426,000 -426,000 -426,000 -426,000 -426,000 -426,000 -426,000 -426,000 -426,000 -426,000 -426,000 -426,000 -426,000 -426,000 -426,000 -426,000 -426,000 -426,000 -426,000 -426,000 -426,000 -426,000 -426,000 -426,000 -426,000 -426,000 -426,000 -426,000 -426,000 -426,000 -426,000 -426,000 -426,000 -426,000 -426,000 -426,000 -426,000 -426,000 -426,000 -426,000 -426,000 -426,000 -426,000 -426,000 -426,000 -426,000 -426,000 -426,000 -426,000 -426,000 -426,000 -426,000 -426,000 -426,000 -426,000 -426,000 -426,000 
        retained earnings
      1,070,824,000 1,045,733,000 1,033,831,000 1,012,057,000 984,552,000 956,347,000 931,379,000 907,089,000 881,876,000 852,859,000 823,960,000 791,669,000 757,917,000 727,183,000 700,156,000 676,474,000 650,141,000 633,804,000 616,235,000 591,014,000 566,634,000 550,826,000 544,280,000 525,778,000 514,320,000 500,320,000 492,161,000 476,152,000 456,889,000 443,040,000 427,737,000 405,479,000 387,985,000 374,678,000 372,597,000 357,163,000 346,009,000 334,988,000 328,432,000 316,227,000 306,691,000 299,057,000 288,582,000 274,737,000 265,932,000 259,476,000 248,913,000 269,943,000 261,595,000 255,203,000 250,025,000 239,535,000 228,591,000 222,480,000 218,997,000 210,519,000 201,887,000 195,814,000 189,094,000 179,750,000 171,545,000 166,589,000 162,400,000 154,209,000 150,043,000 146,756,000 139,386,000 135,405,000 133,011,000 132,064,000 134,509,000 130,647,000 125,671,000 123,426,000 117,103,000 113,655,000 113,407,000 105,618,000 104,261,000 104,721,000 100,922,000 97,297,000 95,309,000 92,846,000 89,232,000 84,983,000 84,249,000 81,371,000 78,680,000 78,544,000  
        accumulated other comprehensive loss
      -51,431,000 -49,098,000 -51,570,000 -44,421,000 -72,037,000 -81,595,000 -54,910,000 -66,155,000 -60,976,000 -54,517,000 -68,427,000 -55,955,000 -63,854,000 -68,268,000 -88,530,000 -63,837,000 -45,265,000 -48,990,000 -44,640,000 -37,006,000 -41,912,000 -40,326,000 -53,020,000 -60,834,000 -65,488,000 -40,838,000 -50,347,000 -42,589,000 -43,941,000 -44,831,000 -39,322,000 -38,565,000 -26,923,000 -30,166,000 -29,747,000 -37,337,000 -44,572,000 -47,756,000 -40,858,000 -39,324,000 -32,354,000 -36,079,000 -31,805,000 -23,798,000 -29,806,000                                               
        total stockholders’ equity
      1,172,924,000 1,148,703,000 1,132,606,000 1,115,396,000 1,057,061,000 1,018,254,000 1,017,720,000 979,716,000 956,556,000 932,763,000 887,734,000 865,942,000 822,348,000 785,360,000 737,031,000 736,442,000 727,180,000 705,663,000 691,662,000 671,881,000 641,881,000 625,643,000 605,213,000 577,151,000 560,409,000 569,757,000 551,052,000 542,832,000 521,484,000 507,371,000 496,892,000 474,447,000 466,382,000 449,108,000 446,493,000 422,911,000 402,856,000 387,717,000 387,516,000 376,238,000 372,430,000 360,469,000 354,100,000 347,897,000 331,130,000 337,670,000 337,464,000 369,973,000 356,567,000 350,465,000 340,199,000 322,370,000 311,550,000 310,286,000 305,025,000 292,375,000 287,156,000 276,658,000 274,534,000 273,071,000 262,733,000 253,260,000 249,517,000 232,139,000 234,143,000 235,377,000 200,882,000 193,656,000 182,119,000 184,312,000 201,528,000 208,423,000 201,910,000 198,698,000 189,454,000                 
        total liabilities and stockholders’ equity
      1,727,444,000 1,606,616,000 1,594,979,000 1,557,649,000 1,504,694,000 1,450,279,000 1,481,341,000 1,505,970,000 1,519,420,000 1,409,386,000 1,455,514,000 1,457,759,000 1,429,212,000 1,308,508,000 1,327,791,000 1,332,376,000 1,338,015,000 1,205,742,000 1,217,778,000 1,208,826,000 1,206,153,000 1,109,329,000 1,173,459,000 1,189,688,000 1,249,876,000 1,212,763,000 856,393,000 866,579,000 852,253,000 721,633,000 734,773,000 725,379,000 745,894,000 639,671,000 686,569,000 680,864,000 635,139,000 552,776,000 624,882,000 645,328,000 646,352,000 603,503,000 644,922,000 665,237,000 647,496,000 629,602,000 654,340,000 682,162,000 465,443,000 438,476,000 449,644,000 425,170,000 427,240,000 404,339,000 419,222,000 436,614,000 451,045,000 380,935,000 402,203,000 434,527,000 416,922,000 370,983,000 370,295,000 378,803,000 395,970,000 377,963,000 353,938,000 378,873,000 387,953,000 384,354,000 398,283,000 426,836,000 401,335,000 350,630,000 376,553,000                 
        additional paid-in capital
       155,427,000    146,866,000    137,791,000    129,820,000    124,228,000    118,528,000    113,666,000    108,422,000    103,864,000    99,765,000    96,778,000    93,849,000    91,439,000    88,660,000    85,704,000   84,606,000 84,377,000 83,906,000 83,385,000 82,936,000 82,721,000 57,217,000 56,724,000 56,168,000 55,683,000 55,115,000 54,153,000 53,785,000 53,610,000 52,892,000 52,597,000 52,400,000 51,853,000 51,736,000 51,702,000 51,702,000 51,664,000 51,577,000 51,547,000 51,461,000 51,451,000 51,439,000 51,355,000 51,354,000 51,345,000  
        deferred pension liability
                        963,000 1,219,000 1,475,000 1,731,000 1,274,000 1,464,000 1,654,000 1,844,000 1,606,000 1,719,000 1,832,000  706,000 879,000 1,052,000  1,999,000 2,409,000 2,519,000  3,790,000 3,926,000 4,063,000  4,337,000 4,788,000 5,239,000  1,264,000 1,720,000 2,138,000  8,248,000 8,959,000 9,448,000  9,273,000 10,104,000 10,487,000  5,727,000 6,140,000 6,782,000  6,355,000 7,207,000 7,506,000  8,614,000 8,651,000 8,758,000  371,000 730,000 983,000   4,084,000  4,755,000              
        prepaid expenses
                                   5,327,000 6,122,000 6,771,000 7,810,000 5,336,000 5,470,000 5,487,000 5,003,000 4,725,000 4,589,000 4,928,000 5,134,000 5,410,000 5,016,000 4,688,000 5,765,000 4,415,000 7,246,000 7,716,000 7,158,000 5,129,000 5,883,000 5,387,000 5,447,000 5,659,000 4,930,000 4,230,000 4,912,000 3,157,000 4,415,000 4,645,000 4,445,000 3,864,000 3,343,000 3,799,000 4,551,000 3,579,000 3,164,000 3,108,000 2,952,000 2,377,000 3,556,000 3,285,000 3,105,000 2,834,000 2,742,000 2,639,000 2,309,000 4,012,000 2,331,000 2,315,000 2,555,000 3,260,000 2,467,000 3,597,000 4,686,000 1,549,000 2,086,000 1,630,000 2,287,000 1,593,000  
        other assets
                                   3,699,000 4,403,000 3,752,000 4,316,000 3,362,000 1,533,000 1,765,000 1,742,000 2,077,000 2,835,000 3,076,000 2,876,000 2,169,000 1,287,000 1,441,000 1,648,000 1,466,000 1,763,000 2,497,000 1,743,000 1,589,000 1,026,000 855,000 972,000 997,000 1,002,000 1,095,000 1,192,000 1,098,000 725,000 861,000 746,000 855,000 971,000 567,000 1,093,000 1,201,000 1,303,000 1,309,000 1,422,000 1,702,000 1,692,000 1,666,000 1,249,000 2,191,000 1,539,000 1,024,000 1,630,000 2,590,000 2,470,000 2,637,000 2,518,000 3,046,000 2,926,000 3,038,000 3,786,000 4,043,000 3,598,000 3,485,000 3,368,000 3,500,000  
        current maturities of long-term debt and capital lease obligations
                                   119,000 189,000 17,000 275,000 82,000 276,000 80,000 536,000 73,000 1,372,000 1,211,000 75,000 77,000 473,000 528,000 511,000 551,000 852,000 1,241,000 1,139,000 420,000 499,000 519,000 571,000 588,000 808,000   1,190,000    2,319,000    5,453,000    4,186,000                      
        long-term debt and capital lease obligation, net of current maturities
                                   85,179,000    60,000,000    70,017,000    144,006,000    190,024,000    8,000    118,000    8,621,000    23,106,000    44,336,000                          
        accrued pension liabilities
                                   1,944,000    1,225,000    2,929,000    4,499,000    5,714,000    2,538,000    9,871,000    10,792,000    7,151,000    7,640,000    8,682,000                      
        long-term debt and capital lease obligations, net of current maturities
                                    101,000,000 119,000,000 147,000,000  126,000,000 146,017,000 127,017,000  134,018,000 164,003,000 173,004,000  175,005,000 203,014,000 208,013,000  190,005,000 188,006,000   90,000 35,000 10,049,000  13,270,000                                     
        deferred income tax
                                                302,000 322,000   884,000 884,000   243,000 239,000 246,000  255,000 644,000 649,000  338,000 338,000 338,000  866,000 2,334,000 3,164,000                           
        accumulated other comprehensive income
                                                   -16,359,000 -5,249,000 5,812,000 2,196,000 3,038,000 -1,657,000 -8,113,000 -7,235,000 -1,631,000 -1,704,000 -5,463,000 -1,434,000 -5,624,000 -725,000 7,385,000 5,820,000 1,533,000 2,452,000 -6,211,000 411,000 5,147,000 3,696,000 948,000 -7,635,000 -4,005,000 11,334,000 23,063,000 21,896,000 21,104,000 18,903,000 16,256,000 15,373,000 7,515,000 6,926,000 8,226,000 8,281,000 11,898,000 13,394,000 9,976,000 9,014,000 9,921,000 7,828,000 3,845,000 668,000 39,000  
        current maturities of long-term debt
                                                             810,000 3,272,000  915,000 1,452,000 1,620,000  2,512,000 3,250,000 5,434,000  5,423,000 3,913,000 5,380,000  3,377,000 5,475,000 4,632,000 3,368,000 3,276,000 4,260,000 3,339,000 4,526,000 2,997,000 2,070,000 2,522,000 4,261,000 2,961,000 2,203,000 3,088,000 3,659,000 1,615,000 2,126,000 44,545,000 2,583,000  
        long-term debt
                                                             41,384,000 53,512,000  30,777,000 56,421,000 47,021,000  23,122,000 44,496,000 56,845,000  62,928,000 91,257,000 110,027,000 99,884,000 91,500,000 105,355,000 114,017,000 78,527,000 101,750,000 108,954,000 78,526,000 85,327,000 30,912,000 39,178,000 59,393,000 54,948,000 18,428,000 15,580,000 33,702,000 40,524,000 14,379,000 32,616,000 716,000 27,833,000 23,856,000 
        income tax receivables
                                                                    1,195,000                             
        assets held for sale
                                                                        426,000 426,000 432,000 291,000 291,000 291,000 291,000 291,000 291,000 291,000 341,000 901,000 721,000 431,000 431,000 448,000 448,000 448,000 448,000 1,048,000 1,048,000 1,290,000 1,390,000 1,430,000  
        accrued pension liability
                                                                               1,040,000                  
        intangible assets
                                                                                4,133,000                 
        deferred pension liability
                                                                                3,804,000                 
        liabilities and stockholders' equity
                                                                                                 
        stockholders' equity:
                                                                                                 
        total stockholders' equity
                                                                                 183,063,000 181,734,000 165,539,000 163,476,000 165,202,000 161,458,000 161,412,000 160,832,000 154,921,000 150,258,000 146,906,000 144,067,000 137,121,000 131,252,000 130,478,000  
        total liabilities and stockholders' equity
                                                                                 374,809,000 326,634,000 341,337,000 246,216,000 260,416,000 278,462,000 275,782,000 231,730,000 226,379,000 244,768,000 243,406,000 194,224,000 209,221,000 210,975,000 191,222,000  
        defined pension liability
                                                                                  4,270,000               
        cash and cash equivalents ..................................................................
                                                                                                6,419,000 
        accounts receivable .............................................................................
                                                                                                55,454,000 
        inventories ..............................................................................................
                                                                                                64,983,000 
        deferred income taxes ...........................................................................
                                                                                                3,971,000 
        prepaid expenses ...................................................................................
                                                                                                1,209,000 
        total current assets ...........................................................................
                                                                                                132,036,000 
        property, plant and equipment ..............................................................
                                                                                                70,761,000 
        less: accumulated depreciation ....................................................
                                                                                                -41,998,000 
        goodwill ....................................................................................................
                                                                                                18,765,000 
        assets held for sale..................................................................................
                                                                                                1,595,000 
        other assets ..............................................................................................
                                                                                                3,642,000 
        total assets ......................................................................................
                                                                                                184,801,000 
        trade accounts payable .......................................................................
                                                                                                13,988,000 
        income taxes payable ............................................................................
                                                                                                1,007,000 
        accrued liabilities ..................................................................................
                                                                                                11,272,000 
        current maturities of long-term debt ...................................................
                                                                                                2,551,000 
        total current liabilities ......................................................................
                                                                                                28,818,000 
        deferred income taxes .............................................................................
                                                                                                2,071,000 
        additional paid-in capital ...........................................................................
                                                                                                51,345,000 
        retained earnings ........................................................................................
                                                                                                79,649,000 
        accumulated other comprehensive income ............................................
                                                                                                -1,488,000 
        total stockholders' equity ...............................................................
                                                                                                130,056,000 
        total liabilities and stockholders' equity .......................................
                                                                                                184,801,000 
      Cashflow 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 2010-09-30 2010-06-30 2010-03-31 2009-09-30 2009-06-30 2009-03-31 2008-09-30 2008-06-30 2008-03-31 2007-09-30 2007-06-30 2007-03-31 2006-06-30 2006-03-31 2005-09-30 2005-06-30 2005-03-31 2004-09-30 2004-06-30 2004-03-31 2003-06-30 2003-03-31 
                                                                                           
          operating activities
                                                                                           
          net income
        29,184,000 15,512,000 25,383,000 31,106,000 31,800,000 28,081,000 27,405,000 28,324,000 32,120,000 31,523,000 34,915,000 36,374,000 33,349,000 29,165,000 25,821,000 28,472,000 18,470,000 19,227,000 17,519,000 26,037,000 17,462,000 8,080,000 20,033,000 12,989,000 15,528,000 9,568,000 17,418,000 20,667,000 15,253,000 16,589,000 23,543,000 18,771,000 14,583,000 3,240,000 16,592,000 12,316,000 12,167,000 7,588,000 13,236,000 10,562,000 8,659,000 11,384,000 14,756,000 9,710,000 7,359,000 11,351,000 13,367,000 9,195,000 7,238,000 6,024,000 11,333,000 11,787,000 6,950,000 4,199,000 8,575,000 9,344,000 6,785,000 7,433,000 10,056,000 8,914,000 5,667,000 8,150,000 4,870,000 3,993,000 4,583,000 2,992,000 1,543,000 4,453,000 5,565,000 2,832,000 4,216,000 4,035,000 833,000 5,339,000 1,942,000 4,384,000 4,210,000 2,573,000 4,198,000 4,832,000 2,304,000 3,268,000 665,000 
          adjustment to reconcile net income to net cash from operating activities:
                                                                                           
          provision for doubtful accounts
        -376,000 175,000 -35,000 -46,000 35,000 484,000 726,000 429,000 79,000 -114,000 123,000 -69,000 313,000 105,000 4,000 -24,000 339,000 373,000 18,000 228,000 -113,000 319,000 125,000 219,000 197,000 295,000 123,000 181,000 -24,000 203,000 26,000 -64,000 -94,000 189,000 85,000 -80,000 -7,000 358,000 -48,000 103,000 69,000 337,000 128,000 374,000 126,000 165,000 198,000 133,000 -27,000 104,000 -20,000 33,000 -86,000 44,000 221,000 -23,000 11,000     201,000 414,000 177,000 199,000        195,000        127,000 34,000 164,000 
          depreciation - property, plant and equipment
        6,722,000 6,940,000 6,746,000 6,837,000 6,561,000  6,748,000 6,699,000 6,580,000  5,934,000 5,749,000 5,521,000  5,659,000 5,412,000 5,236,000  5,252,000 5,299,000 5,247,000  4,830,000 4,783,000 4,624,000  3,715,000 3,530,000 3,338,000  3,146,000 3,107,000 3,135,000                                                   
          depreciation - rental equipment
        3,029,000 3,021,000 2,900,000 2,935,000 2,884,000  2,443,000 2,459,000 2,355,000  2,211,000 2,154,000 2,105,000  1,900,000 1,875,000 1,890,000  2,144,000 2,211,000 2,207,000  2,346,000 2,642,000 2,516,000  2,447,000 2,235,000 2,088,000  1,807,000 1,578,000 1,405,000                                                   
          amortization of intangibles
        4,879,000 4,210,000 4,210,000 4,078,000 4,049,000 4,052,000 4,061,000 4,055,000 4,059,000 4,054,000 3,826,000 3,824,000 3,815,000 3,796,000 3,802,000 3,792,000 3,887,000 3,649,000 3,667,000 3,663,000 3,658,000 3,653,000 3,644,000 3,613,000 3,836,000 2,577,000 1,112,000 1,114,000 855,000 875,000 874,000 875,000 881,000 872,000 891,000 777,000 777,000 776,000 779,000 777,000 772,000 774,000 776,000 782,000 781,000 1,329,000 621,000                 86,000                    
          amortization of debt issuance
        176,000 176,000 176,000 175,000 176,000 176,000 176,000 175,000 176,000 176,000 176,000 175,000 176,000 167,000 166,000 167,000 167,000 167,000 166,000 167,000 167,000 134,000 166,000                       53,000 53,000 45,000 32,000 31,000 32,000 31,000 32,000 31,000 32,000 31,000 32,000 31,000 32,000 31,000 94,000 93,000 94,000 94,000                    
          stock-based compensation expense
        1,847,000 1,575,000 3,693,000 2,367,000 2,303,000 1,956,000 2,427,000 2,633,000 2,125,000 2,051,000 1,805,000 1,869,000 1,699,000 932,000 1,508,000 1,750,000 1,371,000 591,000 2,840,000 1,316,000 1,240,000 1,004,000 1,079,000 1,103,000 933,000 928,000 766,000 948,000 627,000 640,000 622,000 730,000 458,000 615,000 480,000 446,000 328,000 339,000 351,000 439,000 285,000 295,000 296,000 290,000 176,000  141,000 1,359,000 301,000  501,000 453,000 192,000  174,000 404,000 196,000  204,000 424,000 140,000 133,000 152,000 189,000 176,000 142,000 111,000 121,000 147,000 175,000 176,000 170,000 131,000           
          provision for deferred income tax expense
        1,640,000                       767,000 -4,095,000 5,865,000 -4,855,000 441,000 1,865,000     1,402,000 -54,000 21,000 -41,000 -2,491,000 4,849,000      -1,166,000 2,700,000 -1,476,000 -1,201,000 -131,000 106,000 -1,039,000 -37,000 93,000 -97,000 -456,000 79,000 69,000                           
          gain on sale of property, plant and equipment
        -654,000 -2,075,000    150,000    -4,417,000 -146,000 -342,000 -1,716,000 -5,000 -87,000 -47,000 -22,000 383,000 -2,000 -3,545,000 -615,000 -57,000 -154,000 -138,000 -745,000 -180,000 -448,000 -104,000 -180,000 -63,000 -149,000 -132,000 -17,000 -29,000 -74,000 -171,000 -67,000 22,000 -128,000 -74,000 -165,000 -3,933,000 -30,000 -69,000 -14,000  -41,000                                     
          changes in operating assets and liabilities:
                                                                                           
          accounts receivable
        -53,368,000 59,433,000 18,452,000 -6,402,000 -30,865,000 42,165,000 35,504,000 2,497,000 -33,154,000 25,592,000 -3,625,000 -12,435,000 -44,825,000 -10,171,000 -860,000 -15,793,000 -58,231,000 10,535,000 5,129,000 -8,996,000 -34,239,000 10,452,000 14,204,000 19,714,000 -16,306,000 22,710,000 21,114,000 2,559,000 -34,936,000 -2,113,000 10,344,000 -7,262,000 -27,998,000 -2,804,000 3,189,000 1,529,000 -25,048,000 1,324,000 22,701,000 -3,766,000 -16,383,000 -3,936,000 16,431,000 398,000 -22,550,000 545,000 19,715,000 -671,000 -32,185,000 10,342,000 20,161,000 -9,641,000 -31,377,000 13,826,000 17,231,000 -1,193,000 -25,094,000 6,947,000 18,312,000 -14,786,000 -25,625,000 11,220,000 -2,830,000 -26,050,000 21,075,000 12,335,000 -10,541,000 15,037,000 -1,698,000 -28,058,000 23,649,000 2,400,000 -25,680,000 5,624,000 -27,327,000 20,616,000 -3,002,000 -24,949,000 19,543,000 -688,000 -24,958,000 3,405,000 -20,227,000 
          inventories
        -23,101,000 -3,753,000 -7,789,000 -6,980,000 -9,613,000 21,043,000 16,611,000 -1,975,000 -9,185,000 8,376,000 -5,947,000 -4,570,000 -8,703,000 16,383,000 -16,937,000 -3,046,000 -34,139,000 -24,055,000 -19,787,000 -13,069,000 -21,552,000 17,002,000 7,610,000 26,958,000 -11,675,000 9,070,000 2,610,000 6,075,000 -17,098,000 5,530,000 -9,405,000 -9,825,000 -12,291,000 4,217,000 361,000 260,000 -4,696,000 16,605,000 5,254,000 -5,182,000 -4,337,000 22,694,000 -1,222,000 -3,182,000 -8,531,000 17,430,000 -5,547,000 -8,023,000 -14,853,000 12,594,000 2,560,000 -3,255,000 -11,123,000 11,211,000 4,506,000 3,623,000 -12,408,000 8,773,000 3,091,000 -4,127,000 -16,410,000 7,787,000 7,519,000 4,200,000 13,455,000 9,049,000 -485,000 -3,578,000 1,786,000 -2,446,000 3,804,000 -1,128,000 -8,951,000 -3,162,000 -10,792,000 3,354,000 -4,097,000 -8,176,000 23,000 -2,946,000 -2,902,000 1,553,000 -2,503,000 
          rental equipment
        -2,262,000 -2,506,000 -4,972,000 -5,115,000 -7,148,000 -8,571,000 -3,061,000 -5,992,000 -6,206,000 -2,754,000 -4,287,000 -2,387,000 -4,502,000 -2,780,000 -3,915,000 -1,274,000 -1,227,000 1,678,000 232,000 -1,137,000 365,000 353,000 1,463,000 820,000 1,906,000 -1,759,000 -7,108,000 -4,409,000 -7,453,000 -5,666,000 -5,211,000 -5,884,000 -5,663,000 1,273,000 -1,052,000 -4,791,000 1,516,000 116,000 46,000 -1,763,000 1,916,000 2,728,000 69,000 -11,348,000 -3,148,000                                       
          prepaid expenses and other assets
        -1,818,000 623,000 4,277,000 9,019,000 -7,096,000  1,765,000 1,626,000 -4,974,000  1,950,000 -795,000 380,000  2,190,000 997,000 -3,989,000  -1,655,000 699,000 -712,000  2,931,000 3,973,000 -1,139,000  -1,984,000 -1,921,000 -1,472,000  -435,000 313,000 -1,765,000  1,816,000 654,000 358,000  -321,000 -654,000 -1,241,000  -904,000 542,000 -1,895,000  -194,000 5,258,000 -2,312,000  -956,000 -136,000 -313,000  -829,000 1,090,000 -1,486,000  154,000 -483,000 -1,287,000 51,000 1,019,000 -1,273,000 235,000 271,000 -370,000 -1,565,000 -331,000 690,000 25,000 -653,000 586,000 4,200,000 1,440,000 -111,000 1,105,000 -951,000 1,975,000 -2,416,000 4,296,000 789,000 -529,000 
          trade accounts payable and accrued liabilities
        7,328,000 -6,913,000 18,662,000 4,507,000 13,987,000 -14,869,000 -770,000 -214,000 180,000 -16,971,000 4,349,000 12,871,000 4,564,000 -8,575,000 3,433,000 -5,716,000 7,979,000 -3,799,000 9,048,000 11,262,000 16,021,000 -1,361,000 21,491,000 -26,746,000 2,833,000 -3,084,000 3,926,000 3,992,000 1,563,000 -11,667,000 9,838,000 7,442,000 -1,483,000 877,000 -810,000 6,845,000 4,776,000 -3,487,000 -7,631,000 5,081,000 655,000 -14,026,000 2,701,000 -294,000 9,911,000 -23,105,000 8,015,000 -3,475,000 19,767,000 -13,341,000 4,779,000 -1,652,000 14,634,000 -6,680,000 -1,169,000 -1,914,000 10,723,000 -5,731,000 -7,986,000 19,000 9,520,000 -2,968,000 4,097,000 11,406,000 -7,604,000 -4,597,000 -3,031,000 1,640,000 6,599,000 8,829,000 -9,417,000 1,676,000 13,867,000 -7,228,000 17,929,000 -1,755,000 2,674,000 4,435,000 -4,437,000 4,333,000 8,213,000 3,016,000 2,566,000 
          income taxes payable
        5,080,000 -2,515,000 -15,421,000 -14,928,000 5,489,000 -2,172,000 3,163,000 -5,151,000 5,160,000 -660,000 2,779,000 -4,197,000 8,783,000 2,024,000 1,938,000 -646,000 -382,000 -5,618,000 13,680,000 -6,043,000 2,629,000 -1,831,000 -760,000 3,363,000 5,829,000 -6,599,000 2,215,000 -3,402,000 2,925,000 -1,445,000 919,000 -9,420,000 -386,000 3,022,000 3,561,000 -8,549,000 4,323,000 3,432,000 -331,000 -146,000 -47,000 -1,289,000 1,342,000 233,000 3,414,000 -6,712,000 2,763,000 42,000 832,000 -2,370,000 -483,000 -729,000 -983,000 489,000 2,236,000 -1,272,000 885,000 -1,308,000 3,207,000 -1,568,000 69,000 243,000 -657,000 -1,913,000 1,328,000 963,000 -80,000 75,000 1,674,000 -576,000 872,000 1,350,000 201,000 -315,000 -39,000 584,000 -836,000 708,000 -45,000 1,145,000 366,000 -1,059,000 1,278,000 
          other long-term liabilities
        -1,818,000 -686,000 -1,342,000                                -101,000 373,000 -68,000  142,000 71,000 -154,000  -79,000 -165,000 -229,000  -920,000 172,000 -268,000  -433,000 -147,000 -318,000  -415,000 -458,000 142,000  -660,000 -325,000 1,457,000   -365,000   -105,000   495,000   139,000  19,000         
          net cash (used) provided by operating activities
        -23,512,000                                                                                   
          investing activities
                                                                                           
          acquisitions, net of cash acquired
        -166,507,000 -701,000 -11,000                     -342,253,000 -6,032,000 -2,022,000 -50,477,000     -30,000 -12,083,000   -188,000 -3,465,000 -104,000 -751,000   19,000            -2,000 5,000 -431,000    129,000   -3,464,000 -8,875,000 -36,328,000 91,000 80,000 -5,913,000 8,000 51,000 -3,127,000   
          purchase of property, plant and equipment
        -4,507,000 -5,227,000 -12,429,000 -6,963,000 -6,008,000 -6,005,000 -7,927,000 -4,408,000 -6,653,000 -10,694,000 -8,813,000 -9,239,000 -8,999,000 -7,642,000 -8,534,000 -10,607,000 -4,358,000 -10,679,000 -5,227,000 -5,880,000 -3,477,000 -2,912,000 -2,417,000 -5,167,000 -7,378,000 -11,849,000 -7,065,000 -7,139,000 -5,284,000 -7,806,000 -7,952,000 -3,184,000 -7,645,000 -3,804,000 -3,418,000 -4,011,000 -2,257,000 -2,510,000 -1,010,000 -4,430,000 -1,761,000 -8,449,000 -1,929,000 -3,215,000 -1,886,000 -3,117,000 -2,370,000 -2,101,000 -2,218,000 -3,729,000 -2,715,000 -4,079,000 -3,116,000 -1,114,000 -1,072,000 -784,000 -1,684,000 -1,664,000 -1,657,000 -1,615,000 -1,433,000 -1,396,000 -1,305,000 -878,000 -809,000 -775,000 -1,077,000 -1,458,000 -1,889,000 -1,705,000 -1,855,000 -2,781,000 -2,097,000 -4,150,000 -2,796,000 -926,000 -5,099,000 -1,055,000 -1,138,000 -1,195,000 -1,258,000 -798,000 -749,000 
          proceeds from sale of property, plant and equipment
        1,242,000 3,416,000 252,000 696,000 116,000 139,000 2,110,000 47,000 749,000 9,588,000 163,000 398,000 2,533,000 1,039,000 346,000 148,000 33,000 380,000 -25,000 8,631,000 681,000 270,000 270,000 778,000 2,385,000 290,000 1,326,000 189,000 472,000 304,000 409,000 531,000 97,000 212,000 138,000 343,000 74,000 394,000 399,000 146,000 354,000 4,049,000 98,000 78,000 21,000 378,000 60,000 956,000 48,000 46,000 56,000 96,000 277,000 41,000 320,000 154,000 49,000 245,000 81,000 70,000 44,000 1,722,000 63,000 76,000 30,000 35,000 30,000 39,000 109,000 61,000 47,000 308,000 -86,000 80,000 90,000 50,000 124,000 16,000 42,000 85,000 25,000 650,000 90,000 
          net cash from investing activities
        -169,772,000 -4,275,000 -12,188,000 -23,838,000 -5,892,000 -6,099,000 -5,817,000 -4,361,000 -5,904,000 -28,666,000 -8,650,000 -8,841,000 -6,466,000 -6,766,000 -8,188,000 -12,459,000 -4,325,000 -28,097,000 -5,296,000 2,751,000 -2,796,000 -2,642,000 -2,147,000 -4,389,000 -4,993,000 -353,908,000 -11,771,000 -8,972,000 -55,289,000 -7,614,000 -7,543,000 -2,653,000 -7,548,000 -3,622,000 -15,363,000 -30,108,000 -2,183,000 -2,116,000 -661,000 -4,284,000 -1,595,000 -4,400,000 -1,831,000 -3,137,000 -5,330,000 -2,843,000 -3,061,000 -196,757,000 -2,170,000 -3,664,000 -3,680,000 -3,983,000 -2,839,000 -1,073,000 -752,000 -630,000 -1,635,000 -7,352,000 -1,576,000                         
          financing activities
                                                                                           
          borrowings on bank revolving credit facility
        120,000,000   8,000,000 11,000,000 42,000,000 134,000,000 49,000,000 17,000,000 26,000,000 91,000,000 32,000,000 28,000,000 34,000,000 128,000,000 60,000,000 25,000,000 17,000,000 86,000,000 17,000,000 9,000,000 15,000,000 74,000,000 76,000,000 19,000,000 19,000,000 103,000,000 33,000,000 22,000,000 14,000,000 90,000,000 17,000,000 17,000,000 43,000,000 66,000,000 8,000,000 22,000,000 5,000,000 44,000,000 17,000,000 10,000,000 19,000,000 33,000,000 25,000,000 48,000,000                                     
          repayments on bank revolving credit facility
        -31,600,000     -76,750,000 -66,250,000 -44,000,000  -37,000,000 -46,000,000 -18,000,000  -32,000,000 -32,000,000 -21,000,000  -42,000,000 -52,000,000 -14,000,000  -70,000,000 -59,000,000 -24,000,000  -35,000,000 -33,000,000 -8,000,000  -40,000,000 -42,000,000 -3,000,000  -37,000,000 -24,000,000 -9,000,000  -52,000,000 -14,000,000 -15,000,000  -38,000,000 -24,000,000 -15,000,000  -46,000,000                                     
          principal payments on long-term debt and finance leases
        -3,750,000 -3,750,000 -3,753,000 -3,752,000 -3,752,000  -3,753,000 -3,751,000 -3,813,000  -3,752,000 -3,751,000 -3,753,000  -3,756,000 -3,758,000 -3,763,000  -3,771,000 -3,771,000 -3,766,000  -3,774,000 -7,529,000 -3,791,000                                                           
          dividends paid
        -4,093,000 -3,610,000 -3,609,000 -3,601,000 -3,595,000 -3,113,000 -3,115,000 -3,111,000 -3,103,000 -2,624,000 -2,624,000 -2,622,000 -2,615,000 -2,138,000 -2,139,000 -2,139,000 -2,133,000 -1,658,000 -1,658,000 -1,657,000 -1,654,000 -1,534,000 -1,531,000 -1,531,000 -1,528,000 -1,409,000 -1,409,000 -1,404,000 -1,404,000 -1,286,000 -1,285,000 -1,277,000 -1,276,000 -1,159,000 -1,158,000 -1,151,000 -1,146,000 -1,032,000 -1,031,000 -1,026,000 -1,025,000 -909,000 -911,000 -905,000 -903,000 -788,000 -848,000 -846,000 -846,000 -845,000 -844,000 -842,000 -840,000 -715,000 -714,000 -713,000 -712,000 -713,000 -712,000 -710,000 -710,000 -707,000 -705,000 -705,000 -602,000 -599,000 -595,000 -590,000 -588,000 -588,000 -587,000 -586,000 -586,000 -585,000 -585,000 -585,000 -584,000 -585,000 -584,000 -583,000 -584,000 -583,000 -583,000 
          proceeds from exercise of stock options
        1,014,000 148,000 275,000 873,000 354,000 323,000 167,000 694,000 728,000 169,000 213,000 327,000 877,000 164,000 92,000 73,000 474,000 191,000 1,311,000 -602,000 776,000 187,000 666,000 237,000 369,000 108,000 388,000 1,840,000 237,000                                                       
          common stock repurchased
        -1,398,000 -1,383,000 -26,000 -1,613,000 -28,000 -125,000 -201,000 -1,618,000 -45,000 -253,000 -736,000 -56,000 -322,000 -390,000                                                                
          net cash from (used) in financing activities
        80,173,000                                                                                   
          effect of exchange rate changes on cash and cash equivalents
        -1,314,000  -1,872,000 9,183,000 3,297,000  3,570,000 -1,479,000 -3,129,000  -3,516,000 1,903,000 791,000  -4,805,000 -3,374,000 284,000  -2,061,000 647,000 -889,000  2,034,000 2,363,000 -3,517,000  -1,188,000 499,000 324,000  499,000 -2,167,000 181,000  1,431,000 1,620,000 575,000  -503,000 -1,995,000 1,088,000  -1,201,000 1,354,000 -2,290,000                                       
          net change in cash and cash equivalents
        -114,425,000 64,853,000 42,983,000 1,549,000 3,000,000 57,236,000 21,503,000 -3,267,000 69,883,000 -61,615,000 1,473,000 2,741,000 62,304,000 -28,292,000 -586,000 -8,383,000 42,162,000 -47,074,000 3,559,000 -19,635,000 55,070,000 -43,320,000 11,513,000 -2,423,000 42,114,000 -17,968,000 12,089,000 9,167,000 4,980,000 -14,837,000 5,278,000 -32,248,000 50,477,000 -43,695,000 -5,569,000 3,975,000 53,869,000 -39,692,000 11,513,000 -4,682,000 22,732,000 -15,735,000 8,135,000 -2,139,000 -2,872,000 889,000 1,285,000 -4,894,000 -21,707,000 10,357,000 35,762,000 -15,650,000 -14,800,000 9,978,000 4,793,000 -4,338,000 27,570,000 -14,991,000 -866,000 -2,238,000 -1,860,000 4,230,000 -875,000 3,253,000 7,400,000 1,839,000 -297,000 2,113,000 -19,319,000 18,194,000 11,928,000 -1,480,000 8,165,000 2,977,000 1,668,000 6,471,000 -552,000 5,957,000 2,360,000 -2,579,000 4,073,000 992,000 -3,745,000 
          cash and cash equivalents at beginning of the year
        309,659,000 197,274,000 51,919,000 47,016,000 42,115,000 50,195,000 42,311,000 34,043,000                                                       
          cash and cash equivalents at end of the period
        195,234,000  42,983,000 1,549,000 200,274,000  21,503,000 -3,267,000 121,802,000  1,473,000 2,741,000 109,320,000  -586,000 -8,383,000 84,277,000  3,559,000 -19,635,000 105,265,000  11,513,000 -2,423,000 84,425,000  12,089,000 9,167,000 39,023,000  5,278,000 -32,248,000 75,850,000  -5,569,000 3,975,000 70,662,000  11,513,000 -4,682,000 49,654,000  8,135,000 -2,139,000 36,661,000  1,285,000 -4,894,000 42,253,000  35,762,000 -15,650,000 33,491,000  4,793,000 -4,338,000 37,858,000  -866,000 -2,238,000 28,383,000 4,230,000 -875,000 21,027,000 7,400,000 1,839,000 4,235,000 2,113,000 -19,319,000 22,653,000 11,928,000 -1,480,000 10,334,000 2,977,000 8,741,000 6,471,000 -552,000 8,537,000 2,360,000 -2,579,000 7,354,000 992,000 1,838,000 
          cash paid during the period for:
                                                                                           
          interest
        4,743,000 3,993,000 3,881,000 3,622,000 3,239,000 3,438,000 5,205,000 6,314,000 5,830,000 6,629,000 6,589,000 7,075,000 5,065,000 4,833,000 3,744,000 3,379,000 2,619,000 2,409,000 2,632,000 2,650,000 2,557,000 2,900,000 3,604,000 5,032,000 5,513,000 4,128,000 2,042,000 2,224,000 1,061,000 1,310,000 1,363,000 1,403,000 1,123,000 144,000 1,942,000 1,646,000 1,485,000 1,363,000 1,515,000 1,499,000 1,419,000 1,861,000 1,918,000 1,603,000 1,554,000 1,461,000 1,359,000 244,000 256,000 230,000 488,000 214,000 186,000 335,000 497,000 492,000 513,000 567,000 561,000 421,000 746,000 865,000 1,056,000 1,121,000 1,121,000 1,373,000 1,165,000 1,934,000 1,827,000 1,971,000 2,259,000 2,651,000 1,970,000 1,927,000 1,126,000 917,000 873,000 442,000 419,000 802,000 194,000 746,000 485,000 
          income taxes
        3,525,000 6,993,000 13,865,000 25,833,000 6,241,000 11,422,000 7,152,000 16,546,000 5,306,000 7,618,000 9,821,000 16,849,000 3,042,000 7,940,000 9,547,000 14,041,000 3,574,000 12,714,000 4,504,000 12,889,000 2,758,000 3,831,000 9,172,000 1,447,000 2,690,000 4,668,000 8,396,000 7,221,000 2,814,000 3,727,000 6,931,000 14,571,000 5,066,000 2,476,000 4,255,000 14,078,000 2,366,000 2,459,000 2,453,000 5,990,000 5,735,000 4,018,000 6,553,000 5,241,000 2,897,000 8,001,000 5,041,000 5,660,000 3,541,000 6,030,000 8,007,000 3,695,000 3,848,000 2,350,000 2,688,000 6,069,000 2,426,000 4,191,000 1,157,000 6,023,000 3,876,000 665,000 4,035,000 2,178,000 -52,000 137,000 1,821,000 639,000 -22,000 2,249,000 399,000 -276,000 1,075,000 1,614,000 821,000 1,600,000 2,379,000 1,600,000 2,175,000 1,589,000 1,217,000 1,134,000 819,000 
          adjustments to reconcile net income to cash from operating activities:
                                                                                           
          changes in operating assets and liabilities, net of acquisitions:
                                                                                           
          long term tax payable
                                                                                           
          net cash from operating activities
         75,119,000 65,513,000 22,710,000 14,201,000 79,136,000 96,326,000 33,192,000 1,124,000 54,123,000 39,847,000 35,978,000 1,206,000 35,709,000 22,210,000 11,596,000 -54,985,000 6,280,000 33,991,000 17,997,000 -8,601,000 48,358,000 77,265,000 53,136,000 5,574,000 44,603,000 43,311,000 33,260,000 -32,361,000 9,323,000 31,301,000 432,000 -28,146,000 28,922,000 29,460,000 13,865,000 -1,443,000 27,518,000 43,177,000 9,944,000 -5,085,000 21,342,000 39,977,000 4,149,000 -12,908,000 5,800,000 39,535,000 4,263,000 -19,388,000 14,673,000 38,519,000 -1,272,000 -20,293,000 23,728,000 33,131,000 12,105,000 -17,701,000 15,730,000 28,666,000                         
          capital expenditures
         -5,227,000 -12,429,000 -6,963,000 -6,008,000 -6,005,000 -7,927,000 -4,408,000 -6,653,000 -10,694,000 -8,813,000 -9,239,000 -8,999,000 -7,642,000 -8,534,000 -10,607,000 -4,358,000 -10,679,000 -5,227,000 -5,880,000 -3,477,000 -2,912,000 -2,417,000 -5,167,000 -7,378,000 -11,849,000 -7,065,000 -7,139,000 -5,284,000 -7,806,000 -7,952,000 -3,184,000 -7,645,000 -3,804,000 -3,418,000 -4,011,000 -2,257,000 -2,510,000 -1,010,000 -4,430,000 -1,761,000 -8,449,000 -1,929,000 -3,215,000 -1,886,000 -3,117,000 -2,370,000 -2,101,000 -2,218,000 -3,729,000 -2,715,000 -4,079,000 -3,116,000 -1,114,000 -1,072,000 -784,000 -1,684,000 -1,664,000 -1,657,000                         
          free cash flows
         69,892,000 53,084,000 15,747,000 8,193,000 73,131,000 88,399,000 28,784,000 -5,529,000 43,429,000 31,034,000 26,739,000 -7,793,000 28,067,000 13,676,000 989,000 -59,343,000 -4,399,000 28,764,000 12,117,000 -12,078,000 45,446,000 74,848,000 47,969,000 -1,804,000 32,754,000 36,246,000 26,121,000 -37,645,000 1,517,000 23,349,000 -2,752,000 -35,791,000 25,118,000 26,042,000 9,854,000 -3,700,000 25,008,000 42,167,000 5,514,000 -6,846,000 12,893,000 38,048,000 934,000 -14,794,000 2,683,000 37,165,000 2,162,000 -21,606,000 10,944,000 35,804,000 -5,351,000 -23,409,000 22,614,000 32,059,000 11,321,000 -19,385,000 14,066,000 27,009,000                         
          purchase of patents
                                                                                         
          repayment on bank revolving credit facility
                                                                                           
          contingent consideration payment after acquisition
                                                                                           
          net cash from financing activities
         -7,212,000 -8,470,000 -6,506,000 -8,606,000 -6,570,000 -72,576,000 -30,619,000 77,792,000 -91,147,000 -26,208,000 -26,299,000 66,773,000  -9,803,000 -4,146,000 101,188,000    67,356,000 -90,120,000 -65,639,000 -53,533,000 45,050,000  -18,263,000 -15,620,000 92,306,000  -18,979,000 -27,860,000 85,990,000 -66,821,000 -21,097,000 18,598,000 56,920,000 -66,594,000 -30,500,000 -8,347,000 28,324,000 -32,537,000 -28,810,000 -4,505,000 17,656,000 -916,000 -33,262,000 186,746,000 164,000 -1,204,000 -428,000 -10,524,000 9,672,000 -12,661,000 -28,572,000 -15,002,000 46,293,000 -23,551,000 -26,742,000 8,717,000 22,505,000   11,986,000   11,530,000 -14,860,000 -10,746,000 35,906,000     55,389,000   37,598,000      
          effect of exchange rate changes on cash
                                                       854,000 -313,000 552,000 1,351,000 129,000 -1,340,000 -16,000 986,000 -811,000 613,000 182,000 -1,214,000 106,000 989,000 1,364,000 -756,000 -895,000 424,000 233,000 -71,000 -840,000 387,000 41,000 487,000 152,000 94,000 842,000 -30,000 -197,000 -195,000 -29,000 -70,000 -15,000 -405,000 352,000 -123,000 
          cash and cash equivalents at end of the year
                                                                                           
          cash paid during the year for:
                                                                                           
          provision for deferred income tax
          10,860,000 -538,000 -1,641,000  -2,385,000 -169,000 148,000  -4,076,000 -331,000 436,000  -4,378,000 -2,448,000 2,797,000  -7,205,000 1,002,000 -502,000                                                               
          long-term tax payable
              218,000    170,000    1,337,000    454,000  -654,000  332,000 258,000                                                       
          contingent consideration payment from acquisition
              -4,402,000                                                                           
          loss on sale of property, plant and equipment
               -25,000 151,000                                        -22,000                                   
          other assets and long-term liabilities
            3,280,000  2,210,000 -36,000 1,510,000  -310,000 -595,000 -189,000  629,000 97,000 869,000  2,945,000 -1,097,000 -318,000  -523,000 -1,091,000 1,819,000  1,872,000 1,299,000 -25,000  102,000 111,000 104,000                                                   
          depreciation - pp&e
                                         2,985,000 3,071,000                                                 
          depreciation - rental
                                         1,278,000 1,449,000                                                 
          provision for deferred income tax benefit
                                                292,000  866,000                    -1,224,000 188,000         -16,000        11,000 8,000 2,000 
          prepaid expenses and other
                                                                                           
          other assets and liabilities
                                                                                           
          principal payments on long-term debt and capital leases
                                     298,000 -16,000      -1,000 -27,000 -4,000 -6,000 -421,000 -9,000 -293,000 274,000 -248,000 -316,000 -42,000 -76,000 -176,000 -77,000 -73,000 -73,000 -1,386,000 -125,000 -114,000 -492,000 -768,000 -398,000 -512,000 -892,000   -908,000   -809,000   931,000   540,000  1,357,000 -638,000 -1,834,000 1,096,000 -1,162,000 -1,259,000 405,000 -2,107,000 1,255,000 
          net cash provided (used) in financing activities
                                                                                           
          proceeds from issuance of long-term debt
                                                                       542,000   2,048,000   1,540,000              
          debt issuance cost
                                                                                         
          treasury stock repurchased
                                                                                           
          net cash provided (used) by financing activities
                          -23,075,000                                                         -21,223,000        
          proceeds from issuance of long-term debt and finance leases
                                  -36,000                                                         
          amortization of debt issuance costs
                                167,000  56,000 55,000 55,000  56,000 55,000 55,000  56,000 55,000 55,000  53,000 53,000 53,000  53,000 53,000 53,000                                       
          net cash provided (used in) in financing activities
                                                                                           
          principal payments on finance leases
                                  -21,000 -39,000 -37,000                                                       
          purchase of common stock for treasury
                                                                                           
          cost of common stock repurchased
                                  900,000 -1,490,000                                                       
          treasury stock
                                                                                           
          net cash provided in financing activities
                                                                                           
          deferred income tax expense
                                      193,000 37,000 930,000                                                   
          long-term tax liability
                                                                                           
          proceeds from sale of common stock
                                      321,000 1,920,000 266,000  78,000 1,375,000 606,000  256,000 681,000 317,000  69,000 1,664,000 275,000  93,000 84,000 250,000 38,000 383,000 300,000 565,000 1,641,000 239,000 212,000 39,000 23,000 25,000 144,000 89,000 391,000 300,000 26,000 320,000 419,000 378,000 850,000   273,000 126,000 67,000 140,000 117,000 38,000 87,000 87,000 10,000 12,000 1,000 9,000 
          redemptions of common stock to satisfy withholding taxes related to stock-based compensation
                                      1,000                                                    
          cash and cash equivalents at beginning of the period
                                      25,373,000  16,793,000  26,922,000  39,533,000  63,960,000  48,291,000  10,288,000  30,243,000 17,774,000 4,532,000 4,459,000 2,169,000 7,073,000 2,580,000 3,281,000 5,583,000 
          proceeds from issuance of debt
                                            460,000  231,000        2,000 16,000 762,000        2,421,000                           
          changes in operating assets and liabilities, net of effect of acquisitions:
                                                                                           
          changes in operating assets and liabilities, net of amounts acquired:
                                                                                           
          depreciation
                                            4,184,000 4,245,000 4,296,000 4,576,000 4,579,000 4,792,000 4,835,000 6,546,000 2,815,000 2,881,000 2,851,000 2,599,000 2,314,000 2,313,000 2,245,000 2,186,000 2,154,000 2,250,000 2,672,000 2,508,000 2,518,000 2,433,000 2,698,000 2,666,000 2,621,000 2,645,000 2,635,000 2,664,000 1,997,000 2,025,000 2,028,000 2,392,000 2,329,000 2,269,000 2,206,000 2,214,000 2,224,000 2,289,000 1,957,000 1,468,000 1,669,000 1,570,000 1,552,000 1,530,000 1,498,000 1,413,000 1,400,000 
          excess tax expense from stock-based payment arrangements
                                                                                           
          excess tax benefits from stock-based payment arrangements
                                              -71,000 -103,000 -38,000  -41,000 -29,000 -10,000  -11,000 -352,000 -74,000  -110,000 -91,000 -20,000 201,000 -28,000 -34,000 -37,000 93,000 -37,000 -101,000 -18,000 -1,000 -14,000 -31,000 -28,000 -23,000 8,000 -3,000 -19,000 -23,000 -23,000 -22,000 -17,000           
          stock repurchased
                                                                                          
          goodwill impairment charge
                                                                                           
          stock-based compensation
                                                                                           
          net change in bank revolving credit facility
                                                            10,000,000 -12,000,000 -28,000,000 -12,000,000 45,000,000 -22,000,000 -25,500,000 9,500,000 24,000,000 -21,000,000 -12,000,000 13,000,000 -28,000,000 -18,500,000 10,500,000 -13,000,000 -10,000,000 34,000,000 -10,500,000 -7,000,000 30,000,000 12,500,000 54,500,000 -20,000,000 5,000,000 37,000,000 -18,000,000 -6,000,000 20,000,000 -8,500,000 13,500,000 
          gain on bargain purchase
                                                                                           
          gain on sale of equipment
                                                                                   -27,000   -26,000     
          adjustment to reconcile net income to net cash used by operating activities:
                                                                                           
          loss on sale of property, plant & equipment
                                                          -51,000 -74,000 -128,000  381,000 -80,000 -37,000  -65,000 -31,000 -34,000   30,000      -39,000              
          benefit from doubtful accounts
                                                                  -57,000 349,000 393,000      35,000 236,000 57,000 25,000 258,000   -64,000 154,000 177,000 207,000 138,000 302,000     
          benefit from deferred income tax (benefit) expense
                                                                  -283,000 -498,000 -552,000                       
          net cash used by operating activities
                                                                    -23,965,000   -6,605,000   -10,709,000  15,004,000 -16,109,000   -16,492,000  -14,657,000   -24,660,000   -10,995,000  -17,144,000 
          net cash used by investing activities
                                                                    -1,389,000 324,000 -1,237,000 -1,233,000   -1,047,000 -1,290,000 -23,964,000 -1,644,000   -5,475,000  -39,034,000   -6,952,000   -4,360,000 -148,000 -659,000 
          adjustment to reconcile net income to net cash provided by operating activities:
                                                                                           
          provision (benefit) for deferred income tax benefit
                                                                                           
          net cash provided by operating activities
                                                                     25,296,000                      
          net cash provided by financing activities
                                                                                30,038,000        19,833,000 -11,189,000 14,181,000 
          adjustment to reconcile net income to net cash provided (used) by operating activities:
                                                                                           
          amortization of intangible
                                                                                           
          other long term liabilities
                                                                                           
          principal payments / proceeds on long-term debt and capital leases
                                                                                           
          proceeds from issuance of long term debt
                                                                                           
          net cash used by financing activities
                                                                                           
          amortization
                                                                        20,000 19,000 20,000 26,000 26,000 26,000 26,000 26,000 28,000 31,000 32,000 49,000 54,000 67,000 72,000 72,000 73,000 71,000 48,000 
          adjustment to reconcile net income to net cash provided (used) by operating activities:
                                                                                           
          net cash provided (used) by operating activities
                                                                                           
          net cash provided (used) by investing activities
                                                                                           
          adjustment to reconcile net income to net cash used by operating activities:
                                                                                           
          benefit from deferred income tax benefit
                                                                          177,000  509,000 -308,000    -3,198,000 75,000 -63,000 16,000 -75,000 20,000     
          benefit for deferred income tax benefit
                                                                                           
          adjustment to reconcile net income to net cash provided (used) by operating activities:
                                                                                           
          adjustment to reconcile net income to net cash provided by operating activities:
                                                                                           
          proceeds from long-term investment
                                                                                           
          adjustment to reconcile net income to net cash used by operating activities:
                                                                                           
          gain (loss) on sale of property, plant & equipment
                                                                                -32,000           
          gain on sale of property, plant & equipment
                                                                                  -47,000      -23,000   
          net cash (used) by investing activities
                                                                                           
          purchase of long-term investment
                                                                                           
          sale of long-term investment
                                                                                           
          net income ......................................................................................................
                                                                                           
          provision for doubtful accounts .......................................................
                                                                                           
          depreciation .........................................................................................
                                                                                           
          amortization .........................................................................................
                                                                                           
          provision for deferred income tax benefit..........................................
                                                                                           
          loss on sale of equipment .......................................................
                                                                                           
          accounts receivable ...........................................................................
                                                                                           
          inventories ................................................... ........................................
                                                                                           
          prepaid expenses and other assets ...................................................
                                                                                           
          trade accounts payable and accrued liabilities ..............................
                                                                                           
          income taxes payable .........................................................................
                                                                                           
          purchase of property, plant and equipment .............................................
                                                                                           
          proceeds from sale of property, plant and equipment ............................
                                                                                           
          purchase of long-term investment ............................................................
                                                                                           
          net cash (used) by investing activities ...................................................
                                                                                           
          net change in bank revolving credit facility ............................................
                                                                                           
          principal payments on long-term debt and capital leases ......................
                                                                                           
          dividends paid ..............................................................................................
                                                                                           
          proceeds from sale of common stock ........................................................
                                                                                           
          cost of common stock repurchased..........................................................
                                                                                           
          net cash provided (used) by financing activities....................................
                                                                                           
          effect of exchange rate changes on cash ..................................................
                                                                                           
          net change in cash and cash equivalents .................................................
                                                                                           
          cash and cash equivalents at beginning of the period ...........................
                                                                                           
          cash and cash equivalents at end of the period .......................................
                                                                                           
          interest ...................................................................................................
                                                                                           
          income taxes ...........................................................................................