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U.S. Silica Holdings, Inc
(NYSE:SLCA) 

SLCA stock logo

U.S. Silica Holdings, Inc. produces and sells commercial silica in the United States. It operates through two segments, Oil & Gas Proppants and Industrial & Specialty Products. The company offers whole grain commercial silica products to be used as fracturing sand in connection with oil and natural ...

Full Time Employees: 2,177
Sector: Energy
Industry: Oil & Gas Equipment & Services
Energy
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At a glance:
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Income Statements:
Quarterly
Annual
    Unit: USD2024-06-30 2024-03-31 2023-12-31 2023-09-30 2023-06-30 2023-03-31 2022-09-30 2022-06-30 2022-03-31 2021-09-30 2021-06-30 2021-03-31 2020-12-31 2020-09-30 2020-03-31 2019-12-31 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 
                                                   
      sales:
    		                                               
      product
    		263,891,000 261,794,000 266,155,000 294,256,000 322,514,000 344,014,000 309,831,000 290,325,000 233,234,000 216,134,000 268,087,000 191,390,000 190,189,000 159,637,000 222,161,000 865,431,000 303,041,000 296,860,000 293,419,000 348,635,000 345,957,000 294,788,000 306,442,000 295,768,000 246,022,000 209,321,000                      
      service
    		53,624,000 64,148,000 69,882,000 72,705,000 84,270,000 98,226,000 108,982,000 98,188,000 71,653,000 51,164,000 49,214,000 43,026,000 37,088,000 16,835,000 47,438,000 214,192,000 91,813,000 81,890,000 63,961,000 74,537,000 81,476,000 74,525,000 54,124,000 49,255,000 44,443,000 35,476,000                      
      total sales
    		317,515,000 325,942,000 336,037,000 366,961,000 406,784,000 442,240,000 418,813,000 388,513,000 304,887,000 267,298,000 317,301,000 234,416,000 227,277,000 176,472,000 269,599,000 1,079,623,000 394,854,000 378,750,000 357,380,000 423,172,000 427,433,000 369,313,000 360,566,000 345,023,000 290,465,000 244,797,000                      
      cost of sales
    		                                               
      total cost of sales
    		205,768,000 223,724,000 226,764,000 240,957,000 259,773,000 293,133,000 291,520,000 268,896,000 226,869,000 207,448,000 192,955,000 176,989,000 141,418,000 107,592,000 201,317,000 839,133,000 294,160,000 297,538,000 287,038,000 322,336,000 292,845,000 260,910,000 254,706,000 227,923,000 197,411,000 187,475,000                      
      operating expenses:
    		                                               
      selling, general and administrative
    		37,620,000 30,754,000 31,653,000 29,287,000 28,694,000 29,163,000 33,933,000 34,817,000 40,110,000 30,956,000 27,509,000 26,224,000 27,777,000 27,216,000 30,052,000 112,189,000 38,659,000 34,656,000 32,168,000 37,980,000 42,232,000 34,591,000 29,637,000 29,602,000 26,012,000 22,341,000 19,167,000 18,472,000 14,585,000 15,503,000 15,682,000 13,559,000 6,575,000 26,961,000 35,659,000 18,600,000 19,267,000 15,445,000 14,456,000 12,800,000 10,099,000 12,404,000 11,542,000 10,135,000 9,718,000 9,904,000  
      depreciation, depletion and amortization
    		29,446,000 31,368,000 32,505,000 35,822,000 33,546,000 35,386,000 34,500,000 34,715,000 37,749,000 39,981,000 41,165,000 41,348,000 39,964,000 40,069,000 38,449,000 134,545,000 44,899,000 44,600,000 46,527,000 37,150,000 36,563,000 28,592,000 27,335,000 24,673,000 23,626,000 21,599,000 21,194,000 17,175,000 15,209,000 14,556,000 16,378,000 15,158,000 13,695,000 13,243,000 12,664,000 12,425,000 10,341,000 9,589,000 10,098,000 9,152,000 8,890,000 8,278,000 7,179,000 5,968,000 5,974,000 5,978,000  
      total operating expenses
    		67,066,000 62,122,000 64,158,000 65,109,000 62,240,000 64,549,000 68,433,000 69,532,000 77,859,000 70,948,000 68,674,000 67,610,000 70,385,000 67,507,000 172,367,000 610,581,000 83,558,000 79,256,000 344,410,000 75,130,000 94,979,000 63,183,000 56,972,000 54,275,000 49,638,000 43,940,000                      
      operating income
    		44,681,000 40,096,000 45,115,000 60,895,000 84,771,000 84,558,000 58,860,000 50,085,000 159,000 -11,098,000 55,672,000 -10,183,000 15,474,000 1,373,000 -104,085,000 -370,091,000 17,136,000 1,956,000 -274,068,000 25,706,000 39,609,000 45,220,000 48,888,000 62,825,000 43,416,000 13,382,000 -6,399,000 -17,325,000 -15,507,000 -14,300,000 -12,562,000 4,092,000 10,041,000 25,101,000 43,566,000 60,534,000 43,776,000 28,291,000 22,045,000 31,437,000 30,542,000 27,217,000 29,137,000 30,076,000 29,987,000 29,788,000  
      yoy
    		-47.29% -52.58% -23.35% 21.58% 53215.09% -861.92% 5.73% -591.85% -98.97% -908.30% -153.49% -97.25% -9.70% -29.81% -62.02% -1539.71% -56.74% -95.67% -660.60% -59.08% -8.77% 237.92% -863.99% -462.63% -379.98% -193.58% -49.06% -523.39% -254.44% -156.97% -128.83% -93.24% -77.06% -11.28% 97.62% 92.56% 43.33% 3.95% -24.34% 4.53% 1.85% -8.63%      
      qoq
    		11.44% -11.12% -25.91% -28.17% 0.25% 43.66% 17.52% 31400.00% -101.43% -119.93% -646.72% -165.81% 1027.02% -101.32% -71.88% -2259.73% 776.07% -100.71% -1166.16% -35.10% -12.41% -7.50% -22.18% 44.70% 224.44% -309.13% -63.06% 11.72% 8.44% 13.84% -406.99% -59.25% -60.00% -42.38% -28.03% 38.28% 54.73% 28.33% -29.88% 2.93% 12.22% -6.59% -3.12% 0.30% 0.67%   
      other income:
    		                                               
      interest expense
    		-22,042,000 -24,263,000 -25,622,000 -26,039,000 -25,987,000 -24,061,000 -20,174,000 -17,430,000 -17,173,000 -17,796,000 -17,918,000 -17,711,000 -16,155,000 -19,274,000 -22,277,000 -71,707,000 -23,765,000 -23,978,000 -21,281,000 -21,999,000 -20,214,000 -7,070,000 -7,244,000 -8,347,000 -8,105,000 -7,646,000 -7,998,000 -6,684,000 -6,647,000 -6,643,000 -6,835,000 -6,684,000 -6,249,000 -6,836,000 -5,431,000 -4,950,000 -4,013,000 -3,808,000 -4,086,000 -4,144,000 -3,535,000 -3,576,000 -3,244,000 -3,326,000 -3,428,000 -3,797,000  
      other income, net, including interest income
    		4,079,000 2,523,000 17,778,000 4,016,000 2,497,000 -2,352,000 3,576,000 2,099,000 1,531,000 2,580,000 -186,000 2,605,000 8,758,000 -409,000 17,671,000 4,445,000 15,074,000 722,000 1,336,000 1,062,000 1,081,000 665,000 1,525,000 1,502,000 1,258,000 -4,928,000 867,000 493,000 608,000 1,790,000 -90,000 309,000  11,000 379,000 120,000 221,000 38,000 152,000 260,000 63,000 122,000 3,931,000 348,000 179,000 154,000  
      total other income
    		-17,963,000 -21,740,000 -7,844,000 -22,023,000 -23,490,000 -26,413,000 -16,598,000 -15,331,000 -15,642,000 -15,216,000 -18,104,000 -15,106,000 -7,397,000 -19,683,000 -4,606,000 -67,262,000 -8,691,000 -23,256,000 -19,945,000 -20,937,000 -19,133,000 -6,405,000 -5,719,000 -6,845,000 -6,847,000 -12,574,000                      
      income before income taxes
    		26,718,000 18,356,000 37,271,000 38,872,000 61,281,000 58,145,000 42,262,000 34,754,000 -15,483,000 -26,314,000 37,568,000 -25,289,000 8,077,000 -18,310,000 -108,691,000 -437,353,000 8,445,000 -21,300,000 -294,013,000 4,769,000 20,476,000 38,815,000 43,169,000 55,980,000 36,569,000 808,000 -13,530,000 -23,516,000 -21,546,000 -19,153,000   3,611,000 18,276,000 38,514,000 55,704,000 39,984,000 24,521,000 18,111,000 27,073,000 27,070,000 23,763,000 29,824,000 27,098,000 26,738,000 26,145,000  
      income tax expense
    		-7,529,000 -4,775,000 -10,193,500 -12,064,000 -15,137,000   -11,919,000        -596,000 -2,384,000    -2,832,000             -3,453,000 -5,276,000 -14,427,000 -11,330,000 -6,150,000 -1,658,000 -5,739,000 -6,878,000 -6,486,000 -8,030,000 -8,302,000 -7,287,000 -7,032,000  
      net income
    		19,189,000 13,581,000 28,965,000 26,808,000 46,144,000 44,572,000 32,003,000 22,835,000 -8,514,000 -20,174,000 25,902,000 -20,935,000 4,317,000 -14,216,000 -72,605,000 -335,818,000 6,061,000 -19,328,000 -256,075,000 6,316,000 17,644,000 31,294,000 71,952,000 41,273,000 29,459,000 2,522,000 -6,943,000 -11,339,000 -11,991,000 -10,660,000 -15,320,000 2,412,000 9,953,000 14,823,000 33,238,000 41,277,000 28,654,000 18,371,000 16,453,000 21,334,000 20,192,000 17,277,000 21,794,000 18,796,000 19,451,000 19,113,000  
      yoy
    		-58.41% -69.53% -9.49% 17.40% -641.98% -320.94% 23.55% -209.08% -297.22% 41.91% -135.68% -93.77% -28.77% -26.45% -71.65% -5416.94% -65.65% -161.76% -455.90% -84.70% -40.11% 1140.84% -1136.32% -463.99% -345.68% -123.66% -54.68% -570.11% -220.48% -171.92% -146.09% -94.16% -65.26% -19.31% 102.02% 93.48% 41.91% 6.33% -24.51% 13.50% 3.81% -9.61%      
      qoq
    		41.29% -53.11% 8.05% -41.90% 3.53% 39.27% 40.15% -368.21% -57.80% -177.89% -223.73% -584.94% -130.37% -80.42% -78.38% -5640.64% -131.36% -92.45% -4154.39% -64.20% -43.62% -56.51% 74.33% 40.10% 1068.08% -136.32% -38.77% -5.44% 12.49% -30.42% -735.16% -75.77% -32.85% -55.40% -19.48% 44.05% 55.97% 11.66% -22.88% 5.66% 16.87% -20.73% 15.95% -3.37% 1.77%   
      less: net income attributable to non-controlling interest
    		-88,000 -107,000 -144,000 -101,000 -115,000 -76,000 -68,000 -73,000 -121,000 -179,000 -126,000 -157,000 -250,000 -254,000 -260,000 -586,000 -89,000 -4,000                              
      net income attributable to u.s. silica holdings, inc.
    		19,277,000 13,688,000 29,109,000 26,909,000 46,259,000 44,648,000 32,071,000 22,908,000 -8,393,000 -19,995,000 26,028,000 -20,778,000 4,567,000 -13,962,000 -72,345,000 -335,232,000 6,150,000 -19,324,000 -256,062,000 6,316,000                            
      earnings per share attributable to u.s. silica holdings, inc.:
    		                                               
      basic
    		0.25 0.18 0.38 0.35 0.6 0.58 0.42 0.3   0.35     -4.57 0.08 -0.26 -3.34 0.08 0.23 0.39 0.89 0.51 0.36 0.03 -0.08 -0.17 -0.19 -0.2 -0.29 0.05 0.19 0.28 0.62 0.77 0.53 0.34 0.31 0.4 0.38 0.33 0.41 0.36 0.37 0.37  
      diluted
    		0.24 0.17 0.37 0.34 0.59 0.57 0.41 0.29   0.34     -4.57 0.08 -0.26 -3.33 0.08 0.22 0.39 0.88 0.5 0.36 0.03 -0.08 -0.17 -0.19 -0.2 -0.29 0.04 0.18 0.27 0.61 0.76 0.53 0.34 0.31 0.4 0.38 0.32 0.41 0.36 0.36 0.37  
      weighted-average shares outstanding:
    		                                               
      basic
    		78,170 77,671 76,980 77,125 77,089 76,517 75,587 75,508 75,240 74,523 74,339 73,927 73,634 73,688 73,467 73,253 73,301 73,040 76,453 77,365 77,784 79,496 81,051 81,121 81,087 80,983 65,037 66,676 63,417 54,470 53,344 53,321 53,303               
      diluted
    		79,676 79,032 78,520 78,700 78,338 78,292 77,770 77,966 75,240 74,523 76,136 73,927 73,634 73,688 73,467 73,253 73,505 73,040 76,453 77,859 78,480 80,309 81,960 81,783 81,945 82,244 65,037 66,676 63,417 54,470 53,601 53,742 53,857               
      dividends declared per share
    		              0.02 0.19 0.06 0.06 0.06 0.06 0.06 0.06 0.06 0.06 0.06 0.06 0.06 0.06 0.06 0.06 0.06 0.13 0.13               
      income tax benefit
    		     -13,573,000 -10,259,000  6,969,000 6,140,000 -11,666,000 4,354,000 -3,760,000 4,094,000 36,086,000   1,972,000 37,938,000 1,547,000  -7,521,000 28,783,000 -14,707,000 -7,110,000 1,714,000 6,587,000 12,177,000 9,555,000 8,493,000                  
      goodwill and other asset impairments
    		         11,000  38,000 2,644,000 222,000 103,866,000                                 
      loss per share attributable to u.s. silica holdings, inc.:
    		                                               
      basic
    		        -0.11 -0.27  -0.28 0.06 -0.19 -0.98                                 
      diluted
    		        -0.11 -0.27  -0.28 0.06 -0.19 -0.98                                 
      asset impairment
    		                  4,046,000  16,184,000                           
      earnings per share:
    		                                               
      basic
    		0.25 0.18 0.38 0.35 0.6 0.58 0.42 0.3   0.35     -4.57 0.08 -0.26 -3.34 0.08 0.23 0.39 0.89 0.51 0.36 0.03 -0.08 -0.17 -0.19 -0.2 -0.29 0.05 0.19 0.28 0.62 0.77 0.53 0.34 0.31 0.4 0.38 0.33 0.41 0.36 0.37 0.37  
      diluted
    		0.24 0.17 0.37 0.34 0.59 0.57 0.41 0.29   0.34     -4.57 0.08 -0.26 -3.33 0.08 0.22 0.39 0.88 0.5 0.36 0.03 -0.08 -0.17 -0.19 -0.2 -0.29 0.04 0.18 0.27 0.61 0.76 0.53 0.34 0.31 0.4 0.38 0.32 0.41 0.36 0.36 0.37  
      sales
    		                          182,373,000 137,748,000 116,994,000 122,510,000 136,112,000 155,408,000 147,511,000 203,958,000 249,589,000 241,256,000 205,801,000 180,095,000 149,474,000 144,372,000 129,828,000 122,311,000 118,846,000 115,885,000 104,599,000 102,591,000  
      cost of goods sold
    		                          148,411,000 119,426,000 102,707,000 106,751,000 116,614,000 122,599,000 117,200,000 138,653,000 157,700,000 149,697,000 132,417,000 126,770,000 102,875,000 90,983,000 80,297,000 74,412,000 70,988,000 69,706,000 58,920,000 56,921,000  
      operating expenses
    		                                               
      other income
    		                                               
      other income/
    		                                               
      income/(loss) before income taxes
    		                              4,901,000 -2,283,000                
      income tax benefit/
    		                              1,896,000 4,695,000 6,342,000               
      other (expense)/income
    		                                               
      other (expense)/income, net, including interest income
    		                                -181,000               
      early extinguishment of debt
    		                                       -480,000        
      advisory fee to parent
    		                                               
      advisory fees to parent
    		                                               
    Balance Sheets:
    Quarterly
    Annual
      Unit: USD2024-06-30 2024-03-31 2023-12-31 2023-09-30 2023-06-30 2023-03-31 2022-09-30 2022-06-30 2022-03-31 2021-09-30 2021-06-30 2021-03-31 2020-12-31 2020-09-30 2020-03-31 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 
                                                    
        assets
      		                                              
        current assets:
      		                                              
        cash and cash equivalents
      		278,180,000 234,481,000 245,716,000 222,435,000 186,961,000 139,494,000 267,133,000 312,379,000 239,768,000 250,587,000 212,700,000 154,411,000 150,920,000 134,923,000 144,701,000 189,388,000 161,615,000 202,498,000 345,583,000 322,357,000 329,512,000 384,567,000 463,650,000 598,535,000 660,903,000 711,225,000 264,060,000 454,208,000 463,395,000 277,077,000 253,765,000 251,488,000 252,555,000 267,281,000 121,708,000 105,974,000 85,700,000 78,256,000 128,687,000 47,068,000 42,919,000 61,022,000 93,010,000 102,625,000 84,641,000 59,199,000 
        accounts receivable
      		180,105,000 189,506,000 185,917,000 183,434,000 194,679,000 226,395,000 236,231,000 225,110,000 198,835,000 176,759,000 223,229,000 211,840,000 206,934,000 173,827,000 232,855,000 237,393,000 258,348,000 215,486,000 247,692,000 280,019,000 251,275,000 212,586,000 206,099,000 159,110,000 139,970,000 89,006,000 70,725,000 54,293,000 59,078,000 58,706,000 85,605,000 77,777,000 96,355,000 120,881,000 129,755,000 108,452,000 97,369,000 75,207,000 74,661,000 61,784,000 65,249,000 59,564,000 59,471,000 49,904,000 56,766,000 46,600,000 
        inventories
      		141,646,000 139,535,000 149,429,000 162,636,000 161,820,000 152,419,000 143,198,000 133,371,000 123,784,000 116,405,000 113,346,000 106,151,000 104,684,000 104,711,000 119,084,000 148,397,000 143,149,000 162,087,000 170,723,000 167,415,000 76,579,000 92,376,000 86,174,000 74,278,000 69,458,000 78,709,000 77,429,000 67,158,000 67,091,000 65,004,000 70,671,000 64,183,000 65,035,000 66,712,000 64,642,000 58,650,000 51,171,000 64,212,000 59,127,000 52,190,000 42,776,000 39,835,000 36,228,000 40,131,000 31,936,000 29,307,000 
        prepaid expenses and other current assets
      		11,326,000 15,124,000 19,682,000 26,375,000 13,678,000 16,525,000 24,658,000 13,393,000 14,525,000 29,204,000 19,915,000 24,321,000 23,147,000 44,280,000 17,926,000 12,876,000 14,572,000 17,966,000 18,827,000 14,439,000 13,023,000 13,715,000 15,124,000 10,254,000 12,401,000 12,323,000 14,092,000 8,899,000 10,375,000 9,921,000 12,516,000 9,658,000 10,775,000 9,267,000 8,710,000 8,936,000 13,890,000 11,104,000 10,826,000 7,668,000 7,686,000 6,738,000 8,599,000 7,165,000 5,804,000 8,561,000 
        total current assets
      		611,257,000 578,646,000 600,744,000 594,880,000 557,138,000 534,833,000 671,220,000 684,253,000 576,912,000 572,955,000 569,190,000 497,133,000 486,313,000 457,741,000 514,566,000 590,064,000 579,072,000 600,237,000 785,629,000 787,421,000 670,389,000 703,244,000 771,047,000 842,177,000 884,129,000 892,945,000 434,323,000 585,703,000 607,718,000 439,140,000 483,749,000 499,297,000 523,749,000 562,325,000 423,494,000 380,769,000 341,220,000 321,496,000 310,895,000 180,732,000 168,752,000 177,267,000 208,479,000 220,249,000 203,430,000 175,569,000 
        property, plant and mine development
      		1,096,046,000 1,107,352,000 1,125,220,000 1,131,970,000 1,148,681,000 1,161,250,000 1,190,957,000 1,208,738,000 1,228,071,000 1,277,133,000 1,300,211,000 1,333,317,000 1,368,092,000 1,415,636,000 1,487,221,000 1,803,203,000 1,820,102,000 1,826,303,000 1,868,382,000 1,825,653,000 1,195,722,000 1,169,155,000 1,049,805,000 919,840,000 806,288,000 783,313,000 790,565,000 555,487,000 553,005,000 561,196,000 563,262,000 567,197,000 565,337,000 565,755,000 536,721,000 441,450,000 443,406,000 442,116,000 437,748,000 429,364,000 429,611,000 414,218,000 393,756,000 363,828,000 345,277,000 336,788,000 
        lease right-of-use assets
      		41,882,000 41,678,000 41,095,000 43,342,000 43,619,000 39,818,000 47,425,000 46,138,000 41,751,000 44,866,000 37,103,000 35,697,000                                   
        goodwill
      		185,649,000 185,649,000 185,649,000 185,649,000 185,649,000 185,649,000 185,649,000 185,649,000 185,649,000 185,649,000 185,649,000 185,649,000 185,649,000 185,649,000 185,649,000 273,524,000 273,524,000 261,340,000 414,741,000 414,257,000 274,879,000 272,079,000 301,744,000 246,181,000 242,301,000 240,975,000 233,196,000 68,647,000 68,647,000 68,647,000 68,647,000 68,647,000 68,647,000 68,647,000 68,910,000 68,403,000 68,403,000 68,403,000 68,403,000 68,403,000 68,403,000 68,403,000 68,403,000 68,403,000 68,403,000 68,403,000 
        intangible assets
      		126,636,000 129,033,000 131,384,000 133,750,000 136,097,000 138,452,000 143,105,000 145,484,000 147,694,000 152,445,000 154,815,000 157,219,000 159,582,000 164,632,000 181,597,000 189,207,000 190,584,000 194,626,000 195,498,000 194,795,000 148,702,000                          
        other assets
      		11,730,000 12,701,000 12,501,000 11,383,000 10,182,000 9,921,000 9,239,000 8,849,000 7,620,000 7,567,000 8,310,000 9,218,000 9,842,000 11,724,000 15,244,000 12,856,000 16,459,000 18,334,000 24,405,000 27,219,000 17,346,000 12,798,000 14,973,000 15,013,000 14,798,000 15,509,000 16,031,000 17,323,000 18,127,000 18,709,000 19,444,000 17,915,000 13,882,000 12,317,000 11,046,000 11,073,000 8,659,000 9,635,000 9,325,000 8,369,000 8,451,000 7,844,000 7,266,000 6,458,000 6,182,000 6,367,000 
        total assets
      		2,073,200,000 2,055,059,000 2,096,593,000 2,100,974,000 2,081,366,000 2,069,923,000 2,247,595,000 2,279,111,000 2,187,697,000 2,240,615,000 2,255,278,000 2,218,233,000 2,246,947,000 2,276,647,000 2,433,124,000 3,065,514,000 3,089,440,000 2,900,840,000 3,288,655,000 3,249,345,000 2,307,038,000 2,307,283,000 2,286,906,000 2,174,171,000 2,087,240,000 2,073,220,000 1,620,833,000 1,249,153,000 1,268,300,000 1,108,619,000 1,156,593,000 1,174,670,000 1,193,353,000 1,238,153,000 1,067,089,000 922,861,000 883,177,000 863,461,000 848,505,000 705,478,000 694,061,000 686,810,000 697,189,000 678,459,000 643,050,000 605,796,000 
        liabilities and stockholders’ equity
      		                                              
        current liabilities:
      		                                              
        accounts payable and accrued expenses
      		124,462,000 122,588,000  161,797,000 156,973,000 178,738,000 222,665,000 200,945,000 162,970,000 157,082,000 135,595,000 127,123,000 121,920,000 128,193,000 196,959,000 231,260,000 223,611,000 216,400,000 231,302,000 206,994,000 154,148,000                          
        current portion of operating lease liabilities
      		16,666,000 17,753,000 18,569,000 19,490,000 19,654,000 19,101,000 19,255,000 16,843,000 13,158,000 15,846,000 15,074,000 16,571,000 17,388,000 30,887,000 50,402,000 59,479,000 61,583,000                              
        current portion of long-term debt
      		10,171,000 12,708,000 16,367,000 19,763,000 10,152,000 13,590,000 22,770,000 14,232,000 16,303,000 20,484,000 38,841,000 40,200,000 42,042,000 44,248,000 40,233,000 13,093,000 13,112,000 13,327,000 13,479,000 13,969,000 4,305,000 4,504,000 4,735,000 4,832,000 5,034,000 4,821,000 6,745,000 3,336,000 3,333,000 3,330,000 3,327,000 3,324,000 3,321,000 4,718,000 3,490,000 3,489,000 3,489,000 3,488,000 3,487,000 2,434,000 2,434,000 2,433,000 6,364,000 6,364,000 6,364,000 6,364,000 
        current portion of deferred revenue
      		1,115,000 1,226,000 3,124,000 5,479,000 8,244,000 10,793,000 14,095,000 14,131,000 2,643,000 6,744,000 10,464,000 13,956,000 13,545,000 15,531,000 9,799,000 26,161,000 28,838,000 31,612,000 40,755,000 52,021,000 52,305,000 36,128,000 33,089,000 25,402,000 18,926,000 13,700,000   7,216,000 15,738,000    26,771,000      570,000 2,938,000 4,855,000 6,118,000 8,081,000 10,393,000 10,393,000 
        income tax payable
      		4,722,000 5,697,000 311,000 2,458,000 3,362,000 4,436,000 1,660,000 2,177,000 8,866,000            605,000 1,566,000 8,341,000 2,791,000         4,997,000    2,648,000 1,037,000   6,149,000 20,596,000 10,197,000 7,223,000 2,550,000  
        total current liabilities
      		157,136,000 159,972,000 185,850,000 208,987,000 198,385,000 226,658,000 280,445,000 248,328,000 203,940,000 200,156,000 199,974,000 197,850,000 194,895,000 218,859,000 297,393,000 329,993,000 327,144,000 261,339,000 285,536,000 272,984,000 211,994,000 213,945,000 210,291,000 157,350,000 116,595,000 109,960,000 103,128,000 71,850,000 70,886,000 83,918,000 98,621,000 108,986,000 119,264,000 146,261,000 127,265,000 79,612,000 66,043,000 64,133,000 65,485,000 61,918,000 67,478,000 80,090,000 78,310,000 71,990,000 52,052,000 70,458,000 
        long-term debt
      		797,472,000 796,755,000 823,670,000 847,849,000 871,913,000 897,013,000 1,089,713,000 1,190,327,000 1,191,980,000 1,195,092,000 1,196,409,000 1,196,559,000 1,197,660,000 1,208,969,000 1,212,264,000 1,229,820,000 1,245,242,000 1,246,428,000 1,251,053,000 1,253,384,000 506,607,000 506,732,000 506,569,000 506,295,000 507,484,000 508,417,000 499,886,000 486,705,000 487,540,000 488,375,000 489,208,000 490,041,000 490,873,000 497,579,000 365,345,000 366,218,000 367,090,000 367,963,000 368,835,000 251,774,000 252,383,000 252,992,000 253,600,000 254,209,000 254,817,000 255,425,000 
        deferred revenue
      		12,313,000 12,456,000 12,388,000 13,100,000 13,355,000 14,390,000 17,124,000 22,151,000 16,491,000 17,045,000 17,053,000 17,972,000 20,147,000 28,811,000 38,310,000 81,904,000 86,930,000 81,707,000 79,095,000 59,424,000 69,670,000 82,286,000 89,373,000 79,808,000 66,360,000 58,090,000 9,131,000 4,622,000 66,948,000 59,676,000 14,022,000 26,771,000 26,771,000 64,722,000 26,850,000        946,000 899,000 701,000 2,128,000 
        liability for pension and other post-retirement benefits
      		23,714,000 24,679,000 28,715,000 24,627,000 28,343,000 30,476,000 34,789,000 31,974,000 28,843,000 38,923,000 31,739,000 34,543,000 48,169,000 67,913,000 65,475,000 60,830,000 56,879,000 57,194,000 46,045,000 47,022,000 50,167,000 52,867,000 52,472,000 59,411,000 56,363,000 56,746,000 63,715,000 63,887,000 60,600,000 55,893,000 60,099,000 53,765,000 61,554,000 59,932,000 32,727,000 34,431,000 36,189,000 36,802,000 50,672,000 52,019,000 52,768,000 52,747,000 47,630,000 49,190,000 50,328,000 52,078,000 
        deferred income taxes
      		102,000,000 100,452,000 100,458,000 94,000,000 85,444,000 73,304,000 53,135,000 46,569,000 30,388,000 48,033,000 57,148,000 47,630,000 49,386,000 40,334,000 33,940,000 130,942,000 131,053,000 137,239,000 169,432,000 172,610,000 38,371,000 29,856,000 60,735,000 52,328,000 49,643,000 50,075,000 57,330,000 1,314,000 9,770,000  8,925,000 21,472,000 23,776,000 22,295,000 20,771,000 18,582,000 18,022,000 17,737,000    10,108,000    28,007,000 
        operating lease liabilities
      		51,069,000 53,912,000 55,089,000 58,922,000 61,937,000 60,135,000 69,269,000 71,161,000 71,355,000 76,806,000 71,068,000 71,603,000 76,361,000 76,827,000 108,741,000 139,379,000 149,040,000                              
        other long-term liabilities
      		36,506,000 36,508,000  28,467,000 27,649,000 26,390,000 34,622,000 34,167,000 33,906,000 36,552,000 33,148,000 33,801,000  31,268,000 37,407,000 60,181,000 59,054,000                              
        total liabilities
      		1,180,210,000 1,184,734,000 1,241,066,000 1,275,952,000 1,287,026,000 1,328,366,000 1,579,097,000 1,644,677,000 1,576,903,000 1,612,607,000 1,606,539,000 1,599,958,000 1,620,156,000 1,672,981,000 1,793,530,000 2,033,049,000 2,055,342,000 1,848,536,000 1,919,174,000 1,890,841,000 954,055,000 910,777,000 938,111,000 871,963,000 813,344,000 799,930,000 810,038,000 707,807,000 713,307,000 724,452,000 758,926,000 770,671,000 795,305,000 834,337,000 675,946,000 569,377,000 556,529,000 554,167,000 560,859,000 438,442,000 443,106,000 455,116,000 459,001,000 459,197,000 443,638,000 483,862,000 
        commitments and contingencies
      		                                              
        stockholders’ equity:
      		                                              
        preferred stock, 0.01 par value...
      		                                              
        common stock, 0.01 par value...
      		893,000 891,000 877,000 877,000 877,000 876,000 853,000 852,000 851,000 837,000 837,000 832,000 827,000 827,000 824,000 821,000 820,000 818,000 815,000 815,000 814,000 812,000                         
        additional paid-in capital
      		1,257,430,000 1,253,497,000 1,249,460,000 1,245,551,000 1,241,828,000 1,238,098,000 1,230,293,000 1,226,484,000 1,222,780,000 1,213,165,000 1,207,670,000 1,203,922,000 1,200,023,000 1,197,464,000 1,187,962,000 1,176,057,000 1,173,259,000 1,169,383,000 1,165,661,000 1,160,235,000 1,153,336,000 1,147,084,000 1,140,554,000 1,134,245,000 1,131,253,000 1,129,051,000 660,448,000 381,349,000 379,336,000 194,670,000 192,915,000 191,042,000 193,140,000 191,086,000 188,174,000 185,155,000 180,340,000 174,799,000 172,024,000 166,195,000 164,535,000 163,579,000 162,911,000 162,085,000 162,100,000 103,757,000 
        retained deficit
      		-171,194,000 -190,471,000 -204,159,000 -233,268,000 -260,177,000 -306,436,000 -382,674,000 -414,745,000 -437,641,000 -410,233,000 -390,238,000 -416,267,000 -395,496,000 -400,061,000 -353,862,000                                
        treasury stock
      		-202,632,000 -202,363,000 -196,745,000 -196,406,000 -196,162,000 -196,116,000 -185,657,000 -186,826,000 -188,092,000 -183,483,000 -183,420,000 -182,515,000 -181,615,000 -181,542,000 -181,369,000 -180,775,000 -180,125,000 -178,215,000 -120,078,000 -120,056,000 -103,940,000 -25,456,000  -491,000 -3,422,000 -3,869,000 -5,105,000 -10,850,000 -13,323,000 -15,845,000 -15,960,000 -15,937,000 -16,156,000 -542,000 -38,000      -364,000 -970,000 -1,050,000 -215,000   
        accumulated other comprehensive income
      		2,857,000 2,623,000  1,578,000 857,000  -2,816,000 -281,000 3,502,000  3,161,000 1,103,000                                   
        total u.s. silica holdings, inc. stockholders’ equity
      		887,354,000 864,177,000 849,308,000 818,332,000 787,223,000 733,974,000 659,999,000 625,484,000 601,400,000 617,724,000 638,010,000 607,075,000 615,260,000 591,847,000 628,495,000 1,019,945,000 1,021,889,000 1,044,820,000 1,366,269,000                            
        non-controlling interest
      		5,636,000 6,148,000 6,219,000 6,690,000 7,117,000 7,583,000 8,499,000 8,950,000 9,394,000 10,284,000 10,729,000 11,200,000 11,531,000 11,819,000 11,099,000 12,520,000 12,209,000 7,484,000 3,212,000                            
        total stockholders' equity
      		892,990,000 870,325,000 855,527,000 825,022,000 794,340,000 741,557,000 668,498,000 634,434,000 610,794,000 628,008,000 648,739,000 618,275,000 626,791,000 603,666,000 639,594,000 1,032,465,000 1,034,098,000 1,052,304,000 1,369,481,000                            
        total liabilities and stockholders’ equity
      		2,073,200,000 2,055,059,000 2,096,593,000 2,100,974,000 2,081,366,000 2,069,923,000 2,247,595,000 2,279,111,000 2,187,697,000 2,240,615,000 2,255,278,000 2,218,233,000 2,246,947,000 2,276,647,000 2,433,124,000 3,065,514,000 3,089,440,000 2,900,840,000 3,288,655,000 3,249,345,000 2,307,038,000 2,307,283,000 2,286,906,000 2,174,171,000 2,087,240,000 2,073,220,000 1,620,833,000 1,249,153,000 1,268,300,000 1,108,619,000 1,156,593,000 1,174,670,000 1,193,353,000 1,238,153,000 1,067,089,000 922,861,000 883,177,000 863,461,000 848,505,000 705,478,000 694,061,000 686,810,000 697,189,000 678,459,000 643,050,000 605,796,000 
        accounts payable and accrued liabilities
      		  147,479,000                                            
        other long-term obligations
      		  34,896,000          33,538,000     64,629,000 88,013,000 85,417,000 77,246,000 25,091,000 18,503,000 16,633,000 16,474,000 15,925,000 18,668,000 17,828,000 17,563,000 17,077,000 18,115,000 17,725,000 16,472,000 16,094,000 15,417,000 14,913,000 14,445,000 13,951,000 12,434,000 10,531,000 10,323,000 10,176,000 13,702,000 13,420,000 13,139,000 12,858,000 
        accumulated other comprehensive loss
      		  -125,000   -2,448,000    -2,562,000   -8,479,000 -24,841,000 -25,060,000 -21,382,000 -15,985,000 -15,020,000 -8,753,000 -9,663,000 -11,632,000 -13,926,000 -13,703,000 -17,317,000 -15,347,000 -15,876,000 -20,466,000 -20,756,000 -18,699,000 -16,171,000 -19,482,000 -15,579,000 -20,159,000 -19,818,000 -3,597,000 -3,749,000 -3,858,000 -4,017,000 -13,130,000 -13,255,000 -13,753,000 -14,175,000 -11,600,000 -11,739,000 -12,368,000 -12,361,000 
        income tax deposits
      		           410,000 628,000   2,010,000 1,388,000 2,200,000 2,804,000 3,191,000     1,397,000 1,682,000 8,017,000 1,145,000 939,000 6,583,000 6,260,000 3,979,000  746,000 2,753,000 5,074,000   2,629,000 1,881,000       
        operating lease right-of-use assets
      		            37,469,000 41,265,000 48,847,000 196,660,000 209,699,000                              
        retained earnings
      		               45,224,000 43,920,000 67,854,000 328,624,000 327,173,000 314,405,000 287,992,000 221,132,000 184,959,000 160,600,000 163,173,000 175,210,000 190,964,000 207,040,000 220,974,000 239,655,000 243,934,000 240,683,000 232,551,000 206,066,000 171,540,000 149,630,000 137,978,000 128,219,000 113,566,000 100,008,000 82,731,000 87,398,000 68,602,000 49,151,000 30,038,000 
        total stockholders’ equity
      		                   1,358,504,000 1,352,983,000 1,396,506,000 1,348,795,000 1,302,208,000 1,273,896,000 1,273,290,000 810,795,000 541,346,000 554,993,000 384,167,000 397,667,000 403,999,000 398,048,000 403,816,000 391,143,000 353,484,000 326,648,000 309,294,000 287,646,000 267,036,000 250,955,000 231,694,000 238,188,000 219,262,000 199,412,000 121,934,000 
        current portion of capital leases
      		                    631,000 706,000 1,090,000 1,961,000 2,190,000 2,237,000 1,136,000                    
        trade names
      		                     33,068,000 33,068,000 33,068,000 32,318,000 32,318,000 32,318,000 14,474,000 14,474,000 14,474,000 14,914,000 14,914,000 14,914,000 14,914,000 14,991,000 10,436,000 10,436,000 10,436,000 10,436,000 10,436,000 10,436,000 10,436,000 10,436,000 10,436,000 10,436,000 10,436,000 
        intellectual property
      		                     64,786,000 64,836,000 65,384,000 57,524,000 57,270,000 57,700,000                    
        customer relationships
      		                     52,153,000 51,433,000 52,508,000 49,882,000 50,890,000 56,700,000 6,205,000 6,329,000 6,453,000 6,577,000 6,700,000 6,824,000 6,984,000 7,331,000 5,915,000 6,018,000 6,120,000 6,223,000 6,325,000 6,428,000 6,531,000 6,634,000 6,737,000 6,839,000 6,942,000 
        accounts payable
      		                     148,772,000 140,188,000 102,376,000 71,951,000 70,778,000 68,692,000 48,217,000 45,394,000 49,631,000 57,982,000 53,815,000 56,699,000 85,781,000 67,550,000 52,826,000 46,431,000 37,376,000 40,600,000 30,711,000 30,307,000 37,333,000 39,598,000 37,588,000 19,705,000 36,579,000 
        dividends payable
      		                     5,229,000 5,231,000 5,229,000 5,223,000 5,221,000 4,546,000 4,080,000 3,339,000 3,453,000 6,772,000 6,754,000 6,738,000 6,805,000 6,791,000 6,770,000 26,000 6,709,000 6,681,000 6,634,000       
        accrued liabilities
      		                     16,841,000 17,494,000 14,698,000 13,202,000 13,034,000 12,821,000 11,538,000 11,547,000 11,708,000 14,055,000 14,431,000 13,922,000 17,911,000 16,998,000 13,020,000 10,879,000 10,823,000 10,755,000 9,178,000 10,080,000 9,481,000 9,415,000 8,620,000 8,771,000 9,875,000 
        accrued interest
      		                     199,000 123,000 61,000 69,000 169,000 57,000 57,000 57,000 58,000 58,000 58,000 60,000 60,000 41,000 41,000 41,000 41,000 45,000 148,000 154,000 2,000 120,000 86,000 99,000 1,659,000 
        obligations under capital lease
      		                      168,000 138,000 425,000 717,000 1,281,000                    
        preferred stock
      		                                              
        common stock
      		                      812,000 812,000 812,000 811,000 708,000 639,000 639,000 539,000 539,000 539,000 540,000 539,000 538,000 538,000 536,000 534,000 533,000 530,000 529,000 529,000 529,000 529,000   
        short-term investments
      		                            6,840,000 21,849,000 46,007,000 70,740,000 75,253,000 75,143,000 75,155,000 75,101,000 75,068,000 74,980,000 24,986,000        
        book overdraft
      		                              2,405,000 3,833,000 6,756,000 4,215,000 5,545,000 3,466,000 2,529,000 4,659,000 3,651,000 5,013,000 4,376,000 5,390,000 6,498,000 4,028,000 4,170,000 5,588,000 
        debt issuance costs
      		                                 7,211,000 4,596,000 4,815,000 5,035,000 5,255,000 5,475,000 1,849,000 1,980,000 2,111,000 2,215,000 2,348,000 2,483,000 1,291,000 
        deferred income tax
      		                                      9,979,000 10,141,000 10,122,000  11,171,000 20,424,000 24,283,000  
        current portion of capital lease
      		                                      266,000 364,000 489,000      
        short-term debt
      		                                       6,866,000 10,551,000      
        income tax receivable
      		                                             3,895,000 
        note payable to parent
      		                                             15,000,000 
        common stock—0.01 par value...
      		                                            529,000  
        common stock - 0.01 par value...
      		                                             500,000 
      Cashflow Statements:
      Quarterly
      Annual
        Unit: USD2024-06-30 2024-03-31 2023-12-31 2023-09-30 2023-06-30 2023-03-31 2022-09-30 2022-06-30 2022-03-31 2021-09-30 2021-06-30 2021-03-31 2020-03-31 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 
                                                   
          operating activities:
        		                                           
          net income
        		19,189,000 13,581,000 28,965,000 26,808,000 46,144,000 44,572,000 32,003,000 22,835,000 -8,514,000 -20,174,000 25,902,000 -20,935,000 -72,605,000 6,061,000 -19,328,000 -256,075,000 6,316,000 17,644,000 31,294,000 71,952,000 41,273,000 29,459,000 2,522,000 -6,943,000 -11,462,000 -11,991,000 -10,660,000 -15,320,000 2,412,000 9,953,000 14,823,000 33,238,000 41,277,000 28,654,000 18,371,000 16,453,000 21,334,000 20,192,000 17,277,000 21,794,000 18,796,000 19,451,000 19,113,000 
          adjustments to reconcile net income to net cash from operating activities:
        		                                           
          depreciation, depletion and amortization
        		29,446,000 31,368,000 32,505,000 35,822,000 33,546,000 35,386,000 34,500,000 34,715,000 37,749,000 39,981,000 41,165,000 41,348,000 38,449,000 44,899,000 44,600,000 46,527,000 37,150,000 36,563,000 28,592,000 27,335,000 24,673,000 23,626,000 21,599,000 21,194,000 17,175,000 15,209,000 14,556,000 16,378,000 15,158,000 13,695,000 13,243,000 12,664,000 12,425,000 10,341,000 9,589,000 10,098,000 9,152,000 8,890,000 8,278,000 7,179,000 5,968,000 5,974,000 5,978,000 
          debt issuance amortization
        		659,000 615,000 627,000 642,000 705,000 1,131,000 1,195,000 1,248,000 1,253,000 1,264,000 1,266,000 1,271,000 860,000 1,318,000 1,322,000 91,000 -468,000 4,076,000 345,000 344,000 346,000 345,000 347,000 347,000 349,000 348,000 348,000 347,000 351,000 351,000 352,000 255,000 218,000 219,000 220,000 219,000 199,000 131,000 131,000 134,000 134,000 134,000 113,000 
          original issue discount amortization
        		1,041,000 1,015,000 1,015,000 1,043,000 1,075,000 220,000 239,000 255,000 255,000 257,000 256,000 258,000 690,000 263,000 265,000 -836,000 1,107,000 468,000 93,000 91,000 93,000 94,000 94,000 95,000 91,000 96,000 96,000 94,000 96,000 96,000 96,000 75,000 66,000 65,000 66,000 65,000 60,000 42,000 42,000 42,000 42,000 42,000 42,000 
          deferred income taxes
        		1,476,000 -883,000 6,999,000 8,327,000 11,086,000 8,899,000 7,376,000 17,725,000 -15,312,000 -7,292,000 8,922,000 -4,869,000 -36,979,000 1,610,000 -2,553,000 -38,769,000 -3,324,000 3,237,000 7,786,000 -30,750,000 8,000,000 3,875,000 -1,726,000 -7,045,000 -11,659,000 -9,636,000 -8,563,000 -2,010,000 -1,560,000 -3,802,000 -3,101,000 -6,485,000 2,001,000 882,000 1,160,000 126,000 1,396,000 2,027,000 1,029,000 -4,639,000 4,577,000 747,000 410,000 
          deferred revenue
        		-254,000 -1,700,000 -3,561,000 -3,020,000 -3,584,000 -5,569,000 -5,500,000 -3,088,000 -873,000 -4,271,000 -4,861,000 -5,132,000 -2,525,000 -9,903,000 -7,576,000 -20,155,000 -9,595,000 -10,532,000 3,562,000 -4,049,000 17,252,000 19,924,000 -4,689,000 -3,382,000 -2,389,000 -2,005,000 -1,250,000 -3,367,000 -3,496,000 -3,718,000 -5,498,000 -4,839,000    0 -570,000 -2,368,000 -1,917,000 -2,209,000 -1,916,000 -2,114,000 -1,427,000 
          gain on disposal of property, plant and equipment
        		  -16,797,000 -326,000 -1,092,000 264,000 106,000 -288,000 -375,000 -195,000 -176,000 -35,000           59,000    8,000                 
          equity-based compensation
        		3,935,000 4,051,000 3,909,000 3,723,000 3,731,000 3,286,000 4,743,000 4,696,000 4,382,000 5,495,000 3,753,000 4,143,000 2,847,000 2,799,000 4,045,000 3,725,000 5,427,000 6,931,000 6,254,000 6,530,000 6,568,000 6,442,000 5,510,000 3,032,000 3,720,000 3,449,000 1,906,000 2,033,000 1,913,000 -2,179,000 2,090,000 2,680,000 1,424,000 2,053,000 1,330,000 803,000 853,000 705,000 678,000 668,000 515,000 493,000 654,000 
          allowance for credit losses, net of recoveries
        		-109,000 -1,028,000 -76,000 -95,000 254,000 -186,000 120,000 -28,000 286,000 33,000 -991,000 10,000                                
          other
        		4,856,000 8,212,000 1,978,000 5,224,000 8,736,000 8,024,000 -1,114,000 -2,148,000 8,329,000 -2,367,000 7,607,000 18,456,000 -16,792,000 986,000 -3,872,000 -17,090,000 8,070,000 -3,040,000 -1,476,000 2,783,000 1,979,000 -245,000 1,012,000 1,083,000 1,349,000 558,000 653,000 3,516,000 -2,499,000 -8,904,000 2,630,000 4,987,000 249,000 1,454,000 1,730,000 -5,438,000 -110,000 -78,000 -131,000 -1,629,000 2,391,000 -648,000 -1,306,000 
          changes in operating assets and liabilities:
        		                                           
          accounts receivable
        		9,510,000 -2,561,000 -2,406,000 11,339,000 31,462,000 -17,578,000 -11,303,000 -28,094,000 4,088,000 46,530,000 -10,397,000 -4,917,000 -13,471,000 15,256,000 -43,583,000 48,638,000 32,649,000 14,605,000 -39,077,000 -4,801,000 -36,719,000 -17,653,000 -51,747,000 -15,975,000 -1,333,000 4,834,000 -522,000 25,878,000 -6,864,000 22,107,000 21,344,000 2,835,000 -15,738,000 -10,941,000 -22,985,000 -1,868,000 -12,877,000 3,468,000 -5,688,000 -137,000 -9,613,000 6,827,000 -10,316,000 
          inventories
        		-2,112,000 9,895,000 13,224,000 -780,000 -9,369,000 -4,763,000 -9,638,000 -9,398,000 -7,882,000 -3,059,000 -7,195,000 -1,467,000 2,917,000 -5,248,000 18,938,000 10,353,000 -3,308,000 -9,757,000 15,797,000 -4,304,000 -5,728,000 -4,044,000 9,251,000 -1,280,000 -6,777,000 -67,000 -2,087,000 5,667,000 -6,488,000 852,000 1,677,000 -2,070,000 -3,458,000 -7,479,000 13,041,000 -5,085,000 -6,937,000 -9,414,000 -2,941,000 -3,607,000 3,903,000 -8,195,000 -2,629,000 
          prepaid expenses and other current assets
        		3,797,000 4,561,000 6,693,000 -2,991,000 2,847,000 3,657,000 -2,824,000 1,132,000 3,493,000 -2,653,000 4,406,000 -568,000 -4,820,000 2,952,000 3,151,000 379,000 -4,390,000 639,000 694,000 1,338,000 5,380,000 2,147,000 -78,000 1,750,000 -3,281,000 1,476,000 -454,000 2,595,000 -2,858,000 1,067,000 -1,512,000 -780,000 1,281,000 127,000 -2,786,000 -444,000 -3,109,000 -31,000 -948,000 1,861,000 -1,434,000 -1,361,000 2,757,000 
          income taxes
        		-975,000 5,386,000 -2,148,000 -904,000 -1,074,000 4,308,000 -517,000 -6,689,000 7,666,000 836,000 735,000 218,000 578,000 -622,000 812,000 605,000 388,000 -3,796,000 -961,000 -8,268,000 5,480,000 4,189,000 68,000 6,335,000 -215,000 -206,000 5,644,000 -323,000 -2,281,000 -8,975,000 5,742,000 2,147,000 3,226,000 -6,359,000 3,049,000 4,223,000 -110,000 -7,941,000 -14,351,000 10,399,000 2,974,000 4,673,000 6,445,000 
          accounts payable and accrued expenses
        		1,786,000 -20,700,000  3,386,000 -23,297,000 -32,709,000 19,973,000 57,902,000 -5,197,000 20,950,000 6,821,000 9,053,000 -40,455,000 13,151,000 12,970,000 -959,000 30,749,000 25,047,000 -27,930,000                         
          operating lease liabilities
        		-6,025,000 -6,609,000 -6,410,000 -6,357,000 -6,271,000 -6,503,000 -5,146,000 -4,979,000 -7,518,000 -5,593,000 -5,976,000 -8,159,000                                
          liability for pension and other post-retirement benefits
        		-965,000 -4,037,000 3,956,000 -3,731,000 -2,120,000 -433,000 2,810,000 3,784,000 -4,740,000 5,299,000 -2,816,000 -13,602,000 6,751,000 4,229,000 924,000 5,338,000 -1,031,000 89,000 212,000 83,000 -1,242,000 -43,000 497,000 369,000 -106,000 224,000 820,000 975,000 51,000 -80,000 1,007,000 606,000 -1,282,000 -1,353,000 -151,000 2,649,000    5,019,000    
          other noncurrent assets and liabilities
        		-1,009,000 -492,000 -1,017,000 -1,419,000 -664,000 -1,104,000 -744,000 -1,478,000 -2,011,000 -223,000 -110,000 -1,469,000 -10,597,000 2,280,000 -48,000 -2,678,000                            
          net cash from operating activities
        		63,988,000 40,858,000 54,160,000 76,691,000 92,115,000 40,902,000 66,279,000 88,102,000 15,079,000 74,829,000 68,311,000 13,642,000 -40,803,000 71,587,000 10,901,000 43,016,000 94,747,000 95,334,000 77,609,000 49,003,000 104,912,000 100,008,000 -15,767,000 311,000 -1,251,000 5,075,000 -3,754,000 25,076,000 -2,041,000 18,673,000 19,784,000 64,424,000 51,765,000 24,915,000 30,307,000 17,924,000 18,362,000 15,077,000 -4,912,000 30,961,000 24,698,000 43,742,000 1,549,000 
          investing activities:
        		                                           
          capital expenditures
        		-14,150,000 -12,410,000 -17,529,000 -13,603,000 -15,094,000 -18,929,000 -11,118,000 -10,543,000 -7,030,000 -8,316,000 -3,567,000 -3,511,000 -16,116,000 -34,075,000 -44,376,000 -119,028,000 -61,591,000 -86,869,000 -72,327,000 -95,087,000 -130,668,000 -135,220,000 -23,647,000 -13,694,000 -9,368,000 -17,320,000 -6,068,000 -15,479,000 -11,039,000 -13,751,000 -13,377,000 -41,033,000 -33,565,000 -7,405,000 -10,606,000 -13,635,000 -15,622,000 -8,506,000 -22,707,000 -30,851,000 -35,624,000 -24,258,000 -14,986,000 
          free cash flows
        		49,838,000 28,448,000 36,631,000 63,088,000 77,021,000 21,973,000 55,161,000 77,559,000 8,049,000 66,513,000 64,744,000 10,131,000 -56,919,000 37,512,000 -33,475,000 -76,012,000 33,156,000 8,465,000 5,282,000 -46,084,000 -25,756,000 -35,212,000 -39,414,000 -13,383,000 -10,619,000 -12,245,000 -9,822,000 9,597,000 -13,080,000 4,922,000 6,407,000 23,391,000 18,200,000 17,510,000 19,701,000 4,289,000 2,740,000 6,571,000 -27,619,000 110,000 -10,926,000 19,484,000 -13,437,000 
          capitalized intellectual property costs
        		-57,000 -74,000 -81,000 -61,000 -66,000 -107,000 -211,000 -65,000 -67,000 -60,000 -55,000 -95,000 -494,000 -1,313,000 -1,307,000 -3,001,000 -3,182,000 -2,852,000 -1,011,000 -986,000 -627,000 -728,000 -1,245,000 -700,000                    
          proceeds from sale of property, plant and equipment
        		296,000 169,000 18,114,000 830,000 1,700,000 105,000 423,000 1,034,000 714,000 300,000 272,000 72,000 224,000   -74,000 126,000 219,000 25,960,000 325,000 0 0 12,000 413,000 18,000 8,000 58,000 50,000 0 5,000 72,000 7,000    190,000 86,000   3,000 30,000 0 1,225,000 
          net cash from investing activities
        		-13,911,000 -12,315,000 504,000 -12,834,000 -13,460,000 -18,931,000 -10,906,000 -9,574,000 -6,383,000 -8,076,000 -3,350,000 -3,534,000 -16,386,000 -34,680,000 -45,683,000 -122,027,000 -65,131,000 -832,343,000 -47,378,000 -95,830,000 -232,378,000 -154,584,000 -24,880,000 -14,151,000 -186,056,000 -10,460,000 9,010,000 8,751,000 13,756,000 -9,153,000 -13,305,000 -41,026,000 -131,869,000 -7,405,000 -10,606,000 -63,445,000 -40,536,000 -8,425,000 -22,707,000 -30,848,000 -35,594,000 -24,258,000 -13,761,000 
          financing activities:
        		                                           
          dividends paid
        		  0 0 -22,000 -1,000 0 -12,000 -151,000 -1,000   -4,604,000 -4,682,000 -4,690,000 -4,844,000 -4,936,000 -5,063,000 -5,069,000 -5,092,000 -5,098,000 -5,095,000 -5,092,000 -4,419,000 -3,974,000 -3,344,000 -3,388,000 -6,680,000 -6,673,000 -6,686,000 -6,758,000 -6,739,000 -6,730,000 0 -13,402,000 -6,666,000        
          tax payments related to shares withheld for vested restricted stock and stock units
        		-269,000 -5,618,000 -339,000 -244,000 -46,000 -9,920,000 -187,000 -175,000 -2,052,000 -63,000 -905,000 -1,244,000 -457,000 -650,000 -2,205,000 -167,000 -22,000 -709,000 -3,485,000                         
          payments on short-term debt
        		-3,235,000 -3,235,000 -3,235,000 0 -2,814,000 -2,814,000 0 -2,212,000 -2,212,000 -27,000 -2,080,000 -2,077,000                                
          payments on long-term debt
        		-2,062,000 -27,188,000 -27,250,000 -27,312,000 -27,375,000 -109,062,000 -100,200,000 -3,200,000 -3,338,000 -3,200,000 -3,200,000 -3,200,000 -3,782,000 -4,183,000 -4,043,000 -3,770,000 -4,424,000                           
          financing fees paid
        		-39,000 -3,350,000 -1,000 -295,000 -404,000 -40,949,000          -1,429,000 1,000                           
          distributions to non-controlling interest
        		  -327,000 -326,000 -351,000 -350,000 -383,000 -371,000 -353,000  -345,000 -174,000                                
          principal payments on finance lease obligations
        		-349,000 -423,000 -231,000 -206,000 -176,000 -226,000 -272,000 -397,000 -330,000 -309,000 -102,000 -27,000 -3,000 -19,000 -20,000                             
          net cash from financing activities
        		-6,378,000 -39,778,000 -31,383,000 -28,383,000 -31,188,000 -163,322,000 -100,619,000 -5,917,000 -8,353,000 -28,866,000 -6,672,000 -6,617,000 16,150,000 -9,134,000 -6,101,000 -64,074,000 -6,390,000 729,854,000 -85,286,000 -32,256,000 -7,419,000 -7,792,000 -9,675,000    181,062,000   -10,587,000 -21,205,000 122,175,000 95,838,000 2,764,000 -12,257,000 -4,910,000 103,793,000 -2,503,000 9,516,000 -32,101,000 1,281,000 -1,500,000 37,654,000 
          net increase in cash and cash equivalents
        		  23,281,000 35,474,000 47,467,000 -141,351,000 -45,246,000 72,611,000 343,000 37,887,000 58,289,000 3,491,000        -79,083,000 -134,885,000 -62,368,000 -50,322,000    186,318,000     145,573,000 15,734,000 20,274,000 7,444,000     -31,988,000 -9,615,000 17,984,000 25,442,000 
          cash and cash equivalents, beginning of period
        		0 245,716,000 0 0 0 280,845,000 0 0 239,425,000 0 0 150,920,000 185,740,000 0 202,498,000   0 384,567,000 0 0 0 711,225,000 0 0 0 277,077,000 -4,215,000 0 0 267,281,000 0 0 0 78,256,000 0 0 0 61,022,000 0 0 0 59,199,000 
          cash and cash equivalents, end of period
        		43,699,000 234,481,000 23,281,000 35,474,000 47,467,000 139,494,000 -45,246,000 72,611,000 239,768,000 37,887,000 58,289,000 154,411,000 144,701,000 27,773,000 161,615,000   -7,155,000 329,512,000 -79,083,000 -134,885,000 -62,368,000 660,903,000 447,165,000 -190,148,000 -9,187,000 463,395,000 23,312,000 2,277,000 -1,067,000 252,555,000 145,573,000 15,734,000 20,274,000 85,700,000 -50,431,000 81,619,000 4,149,000 42,919,000 -31,988,000 -9,615,000 17,984,000 84,641,000 
          supplemental cash flow information:
        		                                           
          cash paid during the period for:
        		                                           
          interest
        		21,233,000 21,895,000 23,580,000 24,005,000 26,147,000 21,401,000 18,307,000 15,904,000 15,702,000 16,179,000 16,255,000 16,104,000 20,677,000 22,403,000 21,557,000    6,592,000 5,992,000 5,732,000 6,609,000 6,157,000 6,041,000 5,382,000 5,273,000 5,298,000 5,370,000 5,382,000 5,448,000 5,529,000 4,375,000 3,877,000 3,844,000 3,824,000 3,942,000 4,306,000 3,272,000 3,196,000 3,097,000 2,887,000 3,321,000 3,131,000 
          taxes, net of refunds
        		6,913,000 122,000 3,434,000 5,012,000 5,123,000 354,000 3,391,000 860,000 -20,403,000 309,000 2,256,000 -15,889,000 101,000 1,832,000 -472,000    770,000 8,742,000 1,226,000 -953,000 -57,000    -5,574,000                 
          non-cash items:
        		                                           
          accrued capital expenditures
        		-8,739,000 4,505,000 -129,000 -1,491,000 -1,541,000 4,793,000 2,246,000 1,357,000 121,000 744,000 1,056,000 792,000 20,111,000 -9,105,000 39,239,000                             
          loss on disposal of property, plant and equipment
        		 184,000                  53,000 -32,000   323,000 211,000                   
          contributions from (distributions to) non-controlling interest
        		 36,000                                          
          net decrease in cash and cash equivalents
        		 -11,235,000           -41,039,000 27,773,000 -40,883,000  23,226,000 -7,155,000 -55,055,000                         
          goodwill and other asset impairments
        		         11,000 0 38,000 103,866,000                               
          changes in operating assets and liabilities, net of effects of acquisitions:
        		                                           
          accounts payable and accrued liabilities
        		                   -9,158,000 36,596,000 31,500,000 831,000 1,442,000 13,263,000 2,814,000 -4,398,000 -10,698,000 3,791,000 -2,375,000 -33,071,000 19,143,000 14,567,000 8,536,000 9,111,000 -3,156,000 11,466,000 -498,000 -6,427,000 -2,101,000 2,805,000 17,732,000 -9,978,000 
          proceeds from options exercised
        		      423,000 450,000 83,000 0 0 105,000  0 128,000 0 -1,000   0 251,000 30,000 517,000 492,000 3,034,000 1,277,000 22,000 109,000 1,000 320,000 43,000 130,000 723,000 1,706,000 3,004,000 1,437,000 4,341,000 1,376,000 788,000     
          payments on draw down on the revolver
        		                                           
          cash paid (received) during the period for:
        		                                           
          net assets assumed in business acquisition
        		         0 0 68,000 10,955,000                               
          payments on revolver
        		                                           
          gain on remeasurement of leases
        		                                           
          (payments on) proceeds from draw down of the revolver
        		                                           
          (distributions to) contributions from non-controlling interest
        		            -4,000                               
          proceeds from draw down of the revolver
        		            25,000,000                               
          gain on valuation change of royalty note payable
        		                                           
          inventory step-up adjustments
        		                                           
          (gain) loss on disposal of property, plant and equipment
        		            -419,000  113,000 234,000 215,000 180,000 -5,799,000                         
          benefit from credit losses, net of recoveries
        		            902,000                               
          short-term and long-term obligations-vendor incentives
        		               -1,826,000 0 -3,354,000 57,986,000                         
          acquisition of businesses, net of cash acquired
        		                   -82,000                        
          repurchase of common stock
        		               -57,970,000 0 -15,499,000 -75,000,000         0 0 0 -15,255,000         0 -857,000   
          proceeds from long-term debt
        		               0 0                           
          proceeds from draw down on the revolver
        		                                           
          contributions from non-controlling interest
        		             400,000 4,729,000 4,285,000                            
          related party purchases
        		                                           
          capital lease assumed by third-party
        		                                           
          asset retirement obligation assumed by third-party
        		                                           
          asset impairment
        		                0                           
          bad debt provision, net of recoveries
        		             1,678,000 721,000 -201,000 129,000 150,000 237,000    783,000                     
          acquisition of business, net of cash acquired
        		                -484,000       -170,000        0            
          maturities of short-term investments
        		                        0 6,852,000 15,020,000                 
          issuance of common stock
        		                       478,791,000 0 0 200,000,000                 
          common stock issuance costs
        		                       -11,764,000 -170,000 0 -13,798,000             0 310,000 -507,000 -8,974,000 
          principal payments on capital lease obligations
        		               -179,000 -220,000 -90,000 -75,000 -73,000 -247,000 -313,000 -318,000 -319,000        0    -266,000 -98,000 -125,000 -255,000     
          repayment of long-term debt
        		                  -1,657,000 -1,635,000 -2,306,000 -1,865,000 -1,405,000 -1,167,000 -1,485,000 -1,275,000 -1,275,000 -1,267,000 -1,276,000 -1,275,000 -1,275,000 -938,000 -937,000 -937,000 -938,000 -960,000 -255,716,000 -650,000 -650,000 -650,000 -664,000 -636,000 -650,000 
          bad debt provision
        		                   -250,000 931,000   -1,146,000 -187,000 -49,000 150,000                 
          changes in assets and liabilities, net of effects of acquisitions:
        		                                           
          accrued interest
        		                   74,000 62,000 -8,000 -100,000 112,000 0 0 -1,000 0    20,000    -4,000 -103,000 -6,000 152,000 -1,810,000 34,000 -13,000 132,000 
          financing fees
        		                           0 0 0 -64,000     0    -30,000 0 0 -1,304,000 
          tax payments related to shares withheld for vested restricted stock
        		                    -19,000 -549,000 -3,377,000  -23,000 -460,000 -499,000  -25,000 -279,000 -443,000  -38,000 -305,000 -229,000         
          capital lease obligations incurred to acquire assets
        		                       0            0   744,000     
          common stock issued in connection with acquisitions
        		                       0                    
          equipment received
        		                    0 0 18,185,000                     
          increase in accounts payable and accrued liabilities included in capital expenditures
        		                                           
          changes in operating assets and liabilities, net effects of acquisitions:
        		                                           
          excess tax benefit from equity-based compensation
        		                            39,000 -258,000 -6,000 -140,000 -872,000 -1,363,000 -1,438,000 -557,000 -638,000 -89,000 -96,000     
          proceeds from sales and maturities of short-term investments
        		                           24,180,000                
          advances from customers
        		                               0            
          issuance of long-term debt
        		                                           
          taxes
        		                       -5,877,000 -146,000    -808,000 6,179,000 805,000 9,433,000 9,284,000 16,877,000 2,043,000 3,041,000 4,534,000 13,109,000 20,076,000 630,000 895,000 2,185,000 173,000 
          net cash provided by/(used in) financing activities
        		                        -2,841,000                   
          net (decrease) in cash and cash equivalents
        		                                           
          net increase/(decrease) in cash and cash equivalents
        		                            2,277,000 -1,067,000 -14,726,000      81,619,000 4,149,000 -18,103,000     
          early extinguishment of debt
        		                                   0        
          purchase of short-term investments
        		                                   -50,000,000        
          prepayment penalties
        		                                   0        
          non-cash financing activities:
        		                                           
          change in book overdraft
        		                            -1,426,000 -2,925,000 2,541,000 -1,331,000 2,080,000 937,000 -2,130,000 1,008,000 -1,362,000 637,000 -1,014,000 -1,108,000 2,470,000 -142,000 -1,418,000 
          (gain)/loss on disposal of property, plant and equipment
        		                             843,000 -32,000     -160,000 -49,000   -3,000    
          changes in assets and liabilities:
        		                                           
          advisory services termination fee to golden gate capital
        		                                           
          proceeds from issuance of common stock in initial public offering
        		                                       0 0 0 50,000,000 
          issuance of treasury stock
        		                                       80,000    
          repayment of short-term debt
        		                                           
          contribution of note from parent and related accrued interest
        		                                           
          shares withheld to pay taxes due upon vesting of restricted stock
        		                                           
          increase in long-term debt
        		                                           
          change in revolving credit facility
        		                                     -3,685,000 10,551,000     
          tax payments related to shares withheld for vested restricted stock units
        		                                           
          issuance of short-term debt
        		                                           
          advisory services termination fee to holding company
        		                                           
          vesting of restricted stock
        		                                           
          non-cash investing and financing activities:
        		                                           
          contribution of note payable and accrued interest by holding company
        		                                           
          adjustments:
        		                                           
          capital contributed by parent
        		                                           
          proceeds from issuance of note to parent
        		                                           
          loss on early extinguishment of debt
        		                                           
          advisory services termination fee to parent
        		                                        0 0 -8,000,000 
          contribution of note payable and accrued interest by parent
        		                                        0 0 16,692,000 
          (gain) on disposal of property, plant and equipment
        		                                          -439,000 
          noncash financing activities:
        		                                           
          prepayment penalties on long-term debt