7Baggers

Encore Wire Corporation
(NASDAQ:WIRE) 

WIRE stock logo

Encore Wire Corporation manufactures and sells electrical building wires and cables for interior electrical wiring in the United States. Its products include NM-B cables for use as interior wiring in homes, apartments, and manufactured housing; THHN/THWN-2 cables and metal-clad and armored cables fo...

Founded: 1989
Full Time Employees: 1,380
Sector: Industrials
Industry: Electrical Equipment & Parts

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Quarterly
Annual
    Unit: USD2024-03-31 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 2011-06-30 2011-03-31 2010-12-31 2010-09-30 2010-06-30 2010-03-31 2009-12-31 2009-09-30 2009-06-30 2009-03-31 2008-12-31 2008-09-30 2008-06-30 2008-03-31 2007-12-31 2007-09-30 2007-06-30 2007-03-31 2006-12-31 2006-09-30 2006-06-30 2006-03-31 2005-12-31 2005-09-30 2005-06-30 2005-03-31 2004-12-31 2004-09-30 2004-06-30 2004-03-31 2003-12-31 
                                                                                     
      net sales
    632,661,000 633,778,000 636,991,000 636,460,000 660,492,000 693,885,000 762,363,000 838,235,000 723,072,000 687,852,000 716,320,000 744,408,000 444,140,000 380,823,000 339,700,000 253,631,000 302,794,000 302,252,000 321,169,000 336,866,000 314,707,000 319,727,000 340,732,000 336,793,000 291,431,000 301,292,000 292,030,000 291,534,000 279,392,000 239,247,000 237,168,000 238,831,000 225,544,000 250,856,000 262,756,000 253,747,000 250,262,000 285,342,000 297,351,000 307,088,000 277,198,000 293,514,000 309,927,000 289,460,000 265,351,000 258,000,000 269,152,000 264,730,000 280,466,000 871,005,000 309,469,000 303,351,000 -4,461,000 242,751,000 236,094,000 175,229,000 177,082,000 168,695,000 159,351,000 144,485,000 180,190,000 296,338,000 322,845,000 281,759,000 281,941,000 308,481,000 333,635,000 260,729,000 1,248,343,326,000 372,915,000 362,048,000 252,048,000 244,172,000 207,459,000 169,265,000 137,193,000 147,506,293 158,629,000 138,148,000 158,942,000  
      yoy
    -4.21% -8.66% -16.45% -24.07% -8.65% 0.88% 6.43% 12.60% 62.80% 80.62% 110.87% 193.50% 46.68% 26.00% 5.77% -24.71% -3.79% -5.47% -5.74% 0.02% 7.99% 6.12% 16.68% 15.52% 4.31% 25.93% 23.13% 22.07% 23.87% -4.63% -9.74% -5.88% -9.88% -12.09% -11.63% -17.37% -9.72% -2.78% -4.06% 6.09% 4.46% 13.77% 15.15% 9.34% -5.39% -70.38% -13.03% -12.73% -6387.07% 258.81% 31.08% 73.12% -102.52% 43.90% 48.16% 21.28% -1.72% -43.07% -50.64% -48.72% -36.09% -3.94% -3.23% 8.07% -99.98% -17.28% -7.85% 3.44% 511155.72% 79.75% 113.89% 83.72% 65.53% 30.78% 22.52% -13.68%      
      qoq
    -0.18% -0.50% 0.08% -3.64% -4.81% -8.98% -9.05% 15.93% 5.12% -3.97% -3.77% 67.61% 16.63% 12.11% 33.93% -16.24% 0.18% -5.89% -4.66% 7.04% -1.57% -6.16% 1.17% 15.57% -3.27% 3.17% 0.17% 4.35% 16.78% 0.88% -0.70% 5.89% -10.09% -4.53% 3.55% 1.39% -12.29% -4.04% -3.17% 10.78% -5.56% -5.30% 7.07% 9.09% 2.85% -4.14% 1.67% -5.61% -67.80% 181.45% 2.02% -6900.07% -101.84% 2.82% 34.73% -1.05% 4.97% 5.86% 10.29% -19.82% -39.19% -8.21% 14.58% -0.06% -8.60% -7.54% 27.96% -99.98% 334652.78% 3.00% 43.64% 3.23% 17.70% 22.56% 23.38% -6.99% -7.01% 14.83% -13.08%   
      cost of goods sold
    496,672,000 497,370,000 488,749,000 470,312,000 455,407,000 445,430,000 462,916,000 517,463,000 479,325,000 452,719,000 445,554,000 467,066,000 359,636,000 322,020,000 286,241,000 217,132,000 257,021,000 266,505,000 278,181,000 290,956,000 273,381,000 266,501,000 286,227,000 292,296,000 253,937,000 259,281,000 252,943,000 255,662,000 240,187,000 205,722,000 209,350,000 210,200,000 195,401,000 217,805,000 224,421,000 220,842,000 217,832,000 260,125,000 263,278,000 273,576,000 245,022,000 260,798,000 272,023,000 249,309,000 241,050,000 235,661,000 245,016,000 245,339,000 256,005,000 760,782,000 278,837,000 269,596,000 5,708,000 219,983,000 209,179,000 164,628,000 168,016,000 157,340,000 147,491,000 126,650,000 140,163,000 267,993,000 303,322,000 246,289,000 268,431,000 282,962,000 286,073,000 235,985,000 1,004,270,529,000 298,649,000 255,195,000 212,676,000 176,040,000 176,462,000 153,894,000 126,446,000 126,827,934 136,859,000 117,112,000 126,021,000  
      gross profit
    135,989,000 136,408,000 148,242,000 166,148,000 205,085,000 248,455,000 299,447,000 320,772,000 243,747,000 235,133,000 270,766,000 277,342,000 84,504,000 58,803,000 53,459,000 36,499,000 45,773,000 35,747,000 42,988,000 45,910,000 41,326,000 53,226,000 54,505,000 44,497,000 37,494,000 42,011,000 39,087,000 35,872,000 39,205,000 33,525,000 27,818,000 28,631,000 30,143,000 33,051,000 38,335,000 32,905,000 32,430,000 25,217,000 34,073,000 33,512,000 32,176,000 32,716,000 37,904,000 40,151,000 24,301,000 22,339,000 24,136,000 19,391,000 24,461,000 110,223,000 30,632,000 33,755,000 -10,169,000 22,768,000 26,915,000 10,601,000 9,066,000 11,355,000 11,860,000 17,835,000 40,027,000 28,345,000 19,523,000 35,470,000 13,510,000 25,519,000 47,562,000 24,744,000 244,072,797,000 74,266,000 106,853,000 39,372,000 68,132,000 30,997,000 15,371,000 10,747,000 20,678,359 21,770,000 21,036,000 32,921,000  
      yoy
    -33.69% -45.10% -50.49% -48.20% -15.86% 5.67% 10.59% 15.66% 188.44% 299.87% 406.49% 659.86% 84.62% 64.50% 24.36% -20.50% 10.76% -32.84% -21.13% 3.18% 10.22% 26.70% 39.45% 24.04% -4.36% 25.31% 40.51% 25.29% 30.06% 1.43% -27.43% -12.99% -7.05% 31.07% 12.51% -1.81% 0.79% -22.92% -10.11% -16.54% 32.41% 46.45% 57.04% 107.06% -0.65% -79.73% -21.21% -42.55% -340.54% 384.11% 13.81% 218.41% -212.17% 100.51% 126.94% -40.56% -77.35% -59.94% -39.25% -49.72% 196.28% 11.07% -58.95% 43.35% -99.99% -65.64% -55.49% -37.15% 358135.19% 139.59% 595.16% 266.35% 229.48% 42.38% -26.93% -67.36%      
      qoq
    -0.31% -7.98% -10.78% -18.99% -17.46% -17.03% -6.65% 31.60% 3.66% -13.16% -2.37% 228.20% 43.71% 10.00% 46.47% -20.26% 28.05% -16.84% -6.36% 11.09% -22.36% -2.35% 22.49% 18.68% -10.75% 7.48% 8.96% -8.50% 16.94% 20.52% -2.84% -5.02% -8.80% -13.78% 16.50% 1.46% 28.60% -25.99% 1.67% 4.15% -1.65% -13.69% -5.60% 65.22% 8.78% -7.45% 24.47% -20.73% -77.81% 259.83% -9.25% -431.94% -144.66% -15.41% 153.89% 16.93% -20.16% -4.26% -33.50% -55.44% 41.21% 45.19% -44.96% 162.55% -47.06% -46.35% 92.22% -99.99% 328546.75% -30.50% 171.39% -42.21% 119.80% 101.66% 43.03% -48.03% -5.01% 3.49% -36.10%   
      gross margin %
    21.49% 21.52% 23.27% 26.11% 31.05% 35.81% 39.28% 38.27% 33.71% 34.18% 37.80% 37.26% 19.03% 15.44% 15.74% 14.39% 15.12% 11.83% 13.38% 13.63% 13.13% 16.65% 16.00% 13.21% 12.87% 13.94% 13.38% 12.30% 14.03% 14.01% 11.73% 11.99% 13.36% 13.18% 14.59% 12.97% 12.96% 8.84% 11.46% 10.91% 11.61% 11.15% 12.23% 13.87% 9.16% 8.66% 8.97% 7.32% 8.72% 12.65% 9.90% 11.13% 227.95% 9.38% 11.40% 6.05% 5.12% 6.73% 7.44% 12.34% 22.21% 9.57% 6.05% 12.59% 4.79% 8.27% 14.26% 9.49% 19.55% 19.91% 29.51% 15.62% 27.90% 14.94% 9.08% 7.83% 14.02% 13.72% 15.23% 20.71%  
      selling, general, and administrative expenses
    61,088,000 36,913,500 50,279,000 38,671,000 58,704,000 35,477,000 55,291,000 50,405,000 36,212,000 29,027,250 43,816,000 41,140,000 31,152,000 17,348,500 26,350,000 20,755,000 22,290,000 17,878,750 22,672,000 23,846,000 24,999,000 17,149,750 24,214,000 21,498,000 22,887,000 14,299,500 19,142,000 19,319,000 18,737,000 13,189,000 18,721,000 16,726,000 17,309,000 11,988,000 16,063,000 15,857,000 16,031,000 12,782,250 17,442,000 18,235,000 15,451,000 12,121,250 17,126,000 16,213,000 15,147,000 11,532,500 15,726,000 15,327,000 15,077,000 4,020,750 16,083,000 18,149,000 10,389,500 15,506,000 14,068,000  8,060,500 10,905,000 10,730,000 10,608,000 11,768,000 15,682,000 16,923,000 14,467,000 11,434,750 15,324,000 16,835,000 13,579,000 11,690,000 16,589,000 16,733,000 13,438,000 8,313,500 12,769,000 10,898,000 9,587,000 10,958,563 11,124,000 8,917,000 11,218,000  
      operating income
    74,901,000 79,552,000 97,963,000 127,477,000 146,381,000 192,945,000 244,156,000 270,367,000 207,535,000 182,699,000 226,950,000 236,202,000 53,352,000 31,189,000 27,109,000 15,744,000 23,483,000 12,820,000 20,316,000 22,064,000 16,327,000 31,613,000 30,291,000 22,999,000 14,607,000 22,483,000 19,945,000 16,553,000 20,468,000 16,930,000 9,097,000 11,905,000 12,834,000 16,510,000 22,272,000 17,048,000 16,399,000 7,470,000 16,631,000 15,277,000 16,725,000 16,748,000 20,778,000 23,938,000 9,154,000 7,488,000 8,410,000 4,064,000 9,384,000 61,729,000 14,549,000 15,606,000 -12,378,000 7,262,000 12,847,000 -1,384,000 -2,459,000 450,000 1,130,000 7,227,000 25,919,000 12,663,000 2,600,000 21,003,000 -1,151,000 10,195,000 30,727,000 11,165,000 184,326,498,000 57,677,000 90,120,000 25,934,000 55,051,000 18,228,000 4,473,000 1,160,000 9,719,796 10,646,000 12,119,000 21,703,000  
      yoy
    -48.83% -58.77% -59.88% -52.85% -29.47% 5.61% 7.58% 14.46% 288.99% 485.78% 737.18% 1400.27% 127.19% 143.28% 33.44% -28.64% 43.83% -59.45% -32.93% -4.07% 11.78% 40.61% 51.87% 38.94% -28.63% 32.80% 119.25% 39.04% 59.48% 2.54% -59.15% -30.17% -21.74% 121.02% 33.92% 11.59% -1.95% -55.40% -19.96% -36.18% 82.71% 123.66% 147.06% 489.03% -2.45% -87.87% -42.20% -73.96% -175.81% 750.03% 13.25% -1227.60% 403.38% 1513.78% 1036.90% -119.15% -109.49% -96.45% -56.54% -65.59% -2351.87% 24.21% -91.54% 88.11% -100.00% -82.32% -65.90% -56.95% 334728.61% 216.42% 1914.76% 2135.69% 466.38% 71.22% -63.09% -94.66%      
      qoq
    -5.85% -18.79% -23.15% -12.91% -24.13% -20.97% -9.69% 30.28% 13.59% -19.50% -3.92% 342.72% 71.06% 15.05% 72.19% -32.96% 83.17% -36.90% -7.92% 35.14% -48.35% 4.36% 31.71% 57.45% -35.03% 12.72% 20.49% -19.13% 20.90% 86.11% -23.59% -7.24% -22.27% -25.87% 30.64% 3.96% 119.53% -55.08% 8.86% -8.66% -0.14% -19.40% -13.20% 161.50% 22.25% -10.96% 106.94% -56.69% -84.80% 324.28% -6.77% -226.08% -270.45% -43.47% -1028.25% -43.72% -646.44% -60.18% -84.36% -72.12% 104.68% 387.04% -87.62% -1924.76% -111.29% -66.82% 175.21% -99.99% 319484.06% -36.00% 247.50% -52.89% 202.01% 307.51% 285.60% -88.07% -8.70% -12.15% -44.16%   
      operating margin %
    11.84% 12.55% 15.38% 20.03% 22.16% 27.81% 32.03% 32.25% 28.70% 26.56% 31.68% 31.73% 12.01% 8.19% 7.98% 6.21% 7.76% 4.24% 6.33% 6.55% 5.19% 9.89% 8.89% 6.83% 5.01% 7.46% 6.83% 5.68% 7.33% 7.08% 3.84% 4.98% 5.69% 6.58% 8.48% 6.72% 6.55% 2.62% 5.59% 4.97% 6.03% 5.71% 6.70% 8.27% 3.45% 2.90% 3.12% 1.54% 3.35% 7.09% 4.70% 5.14% 277.47% 2.99% 5.44% -0.79% -1.39% 0.27% 0.71% 5.00% 14.38% 4.27% 0.81% 7.45% -0.41% 3.30% 9.21% 4.28% 14.77% 15.47% 24.89% 10.29% 22.55% 8.79% 2.64% 0.85% 6.59% 6.71% 8.77% 13.65%  
      net interest and other income
    7,330,000 7,426,000 8,601,000 8,067,000 9,174,000 5,997,000 3,087,000 647,000 115,000 78,000 52,000 38,000 25,000 79,000 39,000 267,000 884,000 1,006,000 1,033,000 1,082,000 1,079,000 842,000 596,000 393,000 343,000 243,000 148,000 20,000 -16,000 -16,000 -9,000 -21,000                 -20,000   -6,000                              
      income before income taxes
    82,231,000 86,978,000 106,564,000 135,544,000 155,555,000 198,942,000 247,243,000 271,014,000 207,650,000 182,777,000 227,002,000 236,240,000 53,377,000 31,268,000 27,148,000 16,011,000 24,367,000 13,826,000 21,349,000 23,146,000 17,406,000 32,455,000 30,887,000 23,392,000 14,950,000 22,726,000 20,093,000 16,573,000 20,484,000 16,946,000 9,106,000 11,926,000 12,837,000 16,532,000 22,290,000 17,064,000 16,499,000 7,494,000 16,644,000 15,280,000 16,741,000 16,768,000 20,788,000 23,956,000 9,171,000 7,486,000 8,414,000 4,072,000 9,404,000 61,646,000 14,549,000 15,612,000 -11,056,000 7,189,000 12,753,000 -4,086,000 -2,902,000 110,000 654,000 6,939,000 25,435,000 12,178,000 2,013,000 20,271,000 -2,049,000 9,273,000 29,575,000 10,011,000 176,572,348,000 55,147,000 88,175,000 24,801,000 53,791,000 17,154,000 3,703,000 328,000 9,391,158 9,985,000 11,358,000 21,070,000  
      benefit from income taxes
    18,954,000 20,855,000 24,512,000 30,803,000 36,072,000 44,944,000 55,470,000 60,476,000 46,119,000 41,135,000 51,464,000 53,187,000 12,188,000 7,168,000 6,136,000 3,664,000 5,760,000 3,291,000 4,948,000 5,364,000 3,995,000 7,425,000 7,209,000 5,303,000 3,597,000 -5,762,000 6,129,000 5,640,000 6,852,000 5,544,000 3,107,000 4,087,000 4,238,000 5,579,000 7,779,000 5,711,000 5,710,000 2,441,000 5,581,000 5,126,000 5,887,000 5,557,000 6,986,000 8,454,000 2,776,000 2,265,000 2,887,000 1,702,000  20,976,000 5,088,000  1,273,750 2,097,000 4,618,000    54,000 2,323,000 2,858,750 4,101,000 682,000 6,652,000 4,238,750 3,518,000 9,865,000 3,572,000              
      net income
    63,277,000 66,123,000 82,052,000 104,741,000 119,483,000 153,998,000 191,773,000 210,538,000 161,531,000 141,642,000 175,538,000 183,053,000 41,189,000 24,100,000 21,012,000 12,347,000 18,607,000 10,535,000 16,401,000 17,782,000 13,411,000 25,030,000 23,678,000 18,089,000 11,353,000 28,488,000 13,964,000 10,933,000 13,632,000 11,402,000 5,999,000 7,839,000 8,599,000 10,953,000 14,511,000 11,353,000 10,789,000 5,053,000 11,063,000 10,154,000 10,854,000 11,211,000 13,802,000 15,502,000 6,395,000 5,221,000 5,527,000 2,370,000 6,694,000 40,670,000 9,461,000 10,654,000 -7,125,000 5,092,000 8,135,000 -2,466,000 -1,904,000 325,000 600,000 4,616,000 16,744,000 8,077,000 1,331,000 13,619,000 -1,108,000 5,755,000 19,710,000 6,439,000 115,024,237,000 35,761,000 57,059,000 16,137,000 35,410,000 11,205,000 2,426,000 1,037,000 6,436,037 6,391,000 7,269,000 13,265,000  
      yoy
    -47.04% -57.06% -57.21% -50.25% -26.03% 8.72% 9.25% 15.01% 292.17% 487.73% 735.42% 1382.57% 121.36% 128.76% 28.11% -30.56% 38.74% -57.91% -30.73% -1.70% 18.13% -12.14% 69.56% 65.45% -16.72% 149.85% 132.77% 39.47% 58.53% 4.10% -58.66% -30.95% -20.30% 116.76% 31.17% 11.81% -0.60% -54.93% -19.84% -34.50% 69.73% 114.73% 149.72% 554.09% -4.47% -87.16% -41.58% -77.75% -193.95% 698.70% 16.30% -532.04% 274.21% 1466.77% 1255.83% -153.42% -111.37% -95.98% -54.92% -66.11% -1611.19% 40.35% -93.25% 111.51% -100.00% -83.91% -65.46% -60.10% 324735.46% 219.15% 2251.98% 1456.12% 450.18% 75.32% -66.63% -92.18%      
      qoq
    -4.30% -19.41% -21.66% -12.34% -22.41% -19.70% -8.91% 30.34% 14.04% -19.31% -4.11% 344.42% 70.91% 14.70% 70.18% -33.64% 76.62% -35.77% -7.77% 32.59% -46.42% 5.71% 30.90% 59.33% -60.15% 104.01% 27.72% -19.80% 19.56% 90.07% -23.47% -8.84% -21.49% -24.52% 27.82% 5.23% 113.52% -54.33% 8.95% -6.45% -3.18% -18.77% -10.97% 142.41% 22.49% -5.54% 133.21% -64.60% -83.54% 329.87% -11.20% -249.53% -239.93% -37.41% -429.89% 29.52% -685.85% -45.83% -87.00% -72.43% 107.30% 506.84% -90.23% -1329.15% -119.25% -70.80% 206.10% -99.99% 321547.15% -37.33% 253.59% -54.43% 216.02% 361.87% 133.94% -83.89% 0.70% -12.08% -45.20%   
      net income margin %
    10.00% 10.43% 12.88% 16.46% 18.09% 22.19% 25.16% 25.12% 22.34% 20.59% 24.51% 24.59% 9.27% 6.33% 6.19% 4.87% 6.15% 3.49% 5.11% 5.28% 4.26% 7.83% 6.95% 5.37% 3.90% 9.46% 4.78% 3.75% 4.88% 4.77% 2.53% 3.28% 3.81% 4.37% 5.52% 4.47% 4.31% 1.77% 3.72% 3.31% 3.92% 3.82% 4.45% 5.36% 2.41% 2.02% 2.05% 0.90% 2.39% 4.67% 3.06% 3.51% 159.72% 2.10% 3.45% -1.41% -1.08% 0.19% 0.38% 3.19% 9.29% 2.73% 0.41% 4.83% -0.39% 1.87% 5.91% 2.47% 9.21% 9.59% 15.76% 6.40% 14.50% 5.40% 1.43% 0.76% 4.36% 4.03% 5.26% 8.35%  
      earnings per common and common equivalent share – basic
    4,020 4,340 4,930 6,130 6,600 8,490 10,110 10,840 8,080 7,010 8,600 8,890 2,000 1,170 1,020 600 890 500 780 850 640 1,200 1,140 870 540 1,370 670 530 660 550 290 380 420 442.5 700                                               
      earnings per common and common equivalent share – diluted
    3,920 4,220 4,820 6,010 6,500 8,340 9,970 10,710 7,960 6,910 8,510 8,820 1,990 1,170 1,020 600 890 500 780 850 640 1,200 1,130 860 540 1,360 670 520 650 550 290 380 410 440 700                                               
      weighted-average common and common equivalent shares outstanding – basic
    15,738,000 16,873,000 16,638,000 17,093,000 18,099,000 19,159,000 18,968,000 19,419,000 20,003,000 20,439,000 20,421,000 20,581,000 20,568,000 20,599,000 20,548,000 20,496,000 20,792,000 20,904,000 20,912,000 20,898,000 20,884,000 20,845,000 20,853,000 20,847,000 20,835,000 20,767,000 20,758,000 20,751,000 20,738,000 20,704,000 20,704,000 20,694,000 20,688,000 20,713,000 20,716,000 20,737,000 20,725,000 20,714,000 20,718,000 20,715,000 20,703,000 20,676,000                                        
      weighted-average common and common equivalent shares outstanding – diluted
    16,143,000 17,223,000 17,007,000 17,431,000 18,369,000 19,446,000 19,243,000 19,666,000 20,302,000 20,649,000 20,629,000 20,763,000 20,719,000 20,653,000 20,602,000 20,537,000 20,851,000 20,990,000 20,991,000 20,988,000 20,983,000 20,910,000 20,919,000 20,918,000 20,911,000 20,847,000 20,837,000 20,835,000 20,834,000 20,773,000 20,775,000 20,765,000 20,747,000 20,787,000 20,774,000 20,836,000 20,782,000 20,821,000 20,819,000 20,835,000 20,839,000 20,764,000                                        
      cash dividends declared per share
    0.02 0.02 0.02 0.02 0.02 0.02 0.02 0.02 0.02 0.02 0.02 0.02 0.02 0.02 0.02 0.02 0.02 0.02 0.02 0.02 0.02 0.02 0.02 0.02 0.02 0.02 0.02 0.02 0.02 0.02 0.02 0.02 0.02 0.02 0.02 0.02 0.02 0.02 0.02 0.02 0.02 0.02 0.02 0.02 0.02 0.02 0.02 0.02 0.02 0.06 0.02 0.02 0.015 0.02 0.02 0.02 0.015 0.02 0.02 0.02 0.015 0.02 0.02 0.02 0.015 0.02 0.02 0.02              
      net interest and other incomes
                                    -3,000     -8,000 -13,000 -3,000 -16,000 -11,000 -10,000 -18,000 -17,000 -8,000 -4,000 -8,000     717,500 73,000 94,000 2,702,000 276,250 340,000 476,000                       
      other incomes:
                                                                                     
      interest and other income
                                     -85,000 -81,000 -78,000 -162,000                                             
      interest expense
                                     63,000 63,000 62,000 62,000                                             
      net income per common and common equivalent share – basic
                                       550 520 240 530 490 520 540 670 750 310 250 270 110 290   460 115 220 350 -110 60 10 30                       
      net income per common and common equivalent share – diluted
                                       540 520 240 530 490 520 540 660 750 310 250 270 110 290   460 115 220 350 -110 60 10 30                       
      weighted-average common and common equivalent shares – basic
                                              20,680,000 20,669,000 20,664,000 21,680,000 20,657,000 21,997,000 23,427,000 23,300,000  23,217,000  23,193,000 23,171,000 23,159,000  23,006,000 22,999,000  23,113,000     23,362,000     23,262,000  23,117,000   23,106,000  23,104,000  15,208,000  
      weighted-average common and common equivalent shares – diluted
                                              20,768,000 20,738,000 20,733,000 21,732,000 20,712,000 22,037,000 23,477,000 23,410,000  23,378,000  23,337,000 23,334,000 23,159,000  23,308,000 23,299,000  23,396,000            23,537,000       15,678,000  
      benefit for income taxes
                                                    2,710,000   4,958,000    -1,620,000 540,500 -215,000           14,791,500 19,386,000 31,116,000 8,664,000 1,629,250 5,949,000 1,277,000 -709,000 3,872,250 3,594,000 4,089,000 7,805,000  
      net income per common and common equivalent share — basic
                                                     102.5 410         200 250 350                    
      weighted-average common and common equivalent shares — basic
                                                      23,264,000      23,011,000     23,125,000 23,120,000 23,181,000 23,342,000  23,356,000 23,314,000  23,267,000  23,213,000  23,111,000 23,107,000    15,367,000   
      net income per common and common equivalent share — diluted
                                                     100 400         200 245 340                    
      weighted-average common and common equivalent shares — diluted
                                                      23,405,000      23,298,000     23,415,000 23,426,000 23,454,000 23,690,000  23,712,000 23,689,000  23,680,000 23,719,000 23,694,000  23,495,000 23,393,000    15,727,000   
      selling, general and administrative expenses
                                                           11,985,000                          
      net interest & other incomes
                                                               288,000    732,000 806,750 922,000 1,152,000 1,154,000 1,402,000 2,530,000 1,945,000 1,133,000 669,000 1,074,000 770,000 832,000 513,750 661,000 761,000 633,000  
      weighted-average common and common equivalent share — basic
                                                               22,997,000                      
      weighted-average common and common equivalent share — diluted
                                                               23,277,000                      
      net interest and other income and expense
                                                                451,000 485,000 587,000                   
      net income per common and common equivalent shares — basic
                                                                  60 590   840 280    700 157.5 480 100    470   
      net income per common and common equivalent shares — diluted
                                                                  60 580   830 270   2,410 680 157.5 480 100    460   
      net income per common and common equivalent shares – basic
                                                                    342.5 250     2,450     40 292.5 280  870  
      net income per common and common equivalent shares - diluted
                                                                    337.5 240          40 285 270    
      weighted-average common and common equivalent shares - diluted
                                                                     23,708,000          23,427,000  23,478,000    
      net earnings per common and common equivalent share — basic
                                                                        1,172.5 1,540            
      net earnings per common and common equivalent share — diluted
                                                                        1,150 1,510            
      net income per common and common equivalent shares – diluted
                                                                                   850  
    Balance Sheets:
    Quarterly
    Annual
      Unit: USD2024-03-31 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 2011-06-30 2011-03-31 2010-12-31 2010-09-30 2010-06-30 2009-12-31 2009-09-30 2009-06-30 2009-03-31 2008-12-31 2008-09-30 2008-06-30 2008-03-31 2007-12-31 2007-09-30 2007-06-30 2007-03-31 2006-12-31 2006-09-30 2006-06-30 2006-03-31 2005-12-31 2005-09-30 2005-06-30 2005-03-31 2004-12-31 2004-09-30 2004-06-30 2004-03-31 2003-12-31 
                                                                                      
        assets
                                                                                      
        current assets:
                                                                                      
        cash and cash equivalents
      614,088,000 560,635,000 581,753,000 667,790,000 697,424,000 730,557,000 573,582,000 469,540,000 466,094,000 438,990,000 294,860,000 157,872,000 154,968,000 183,123,000 217,103,000 250,383,000 206,838,000 230,965,000 203,936,000 184,800,000 177,974,000 178,405,000 134,497,000 102,020,000 107,827,000 123,362,000 101,367,000 85,858,000 86,482,000 95,753,000 79,927,000 81,135,000 78,561,000 79,152,000 58,817,000 45,603,000 53,269,000 54,664,000 38,844,000 19,094,000 36,822,000 36,778,000 16,145,000 1,234,000 32,744,000 33,883,000 17,988,000 47,727,000 83,923,000 112,298,000 46,802,000 75,233,000 103,252,000 90,409,000 90,503,000 226,769,000 213,593,000 232,307,000 230,704,000 217,666,000 108,516,000 104,641,000 101,744,000 78,895,000    24,602,846,000    2,621,718    2,639,579    391,114 
        accounts receivable
      471,246,000 475,291,000 495,179,000 463,318,000 479,831,000 498,762,000 561,669,000 606,132,000 549,404,000 491,126,000 536,178,000 574,191,000 348,709,000 275,781,000 257,210,000 192,067,000 224,123,000 223,098,000 244,869,000 255,968,000 231,470,000 235,353,000 270,591,000 258,414,000 248,466,000 228,885,000 222,951,000 220,553,000 211,669,000 184,876,000 183,531,000 178,765,000 175,215,000 186,065,000 192,005,000 200,306,000 195,571,000 206,908,000 230,180,000 238,622,000 219,147,000 215,739,000 236,933,000 236,172,000 212,790,000 197,980,000 207,544,000 205,535,000 227,818,000 199,366,000 246,750,000 234,851,000 190,364,000 195,727,000 182,309,000 133,176,000 123,303,000 111,636,000 109,663,000 126,184,000 233,539,000 239,835,000 235,503,000 216,780,000 246,502,000 235,776,000 203,646,000 214,963,196,000 292,078,000 271,215,000 183,311,000 164,930,302 159,203,000 124,611,000 103,889,000 108,752,028 117,076,000 96,820,000 118,125,000 81,429,927 
        inventories
      173,669,000 163,679,000 158,991,000 163,215,000 173,878,000 153,187,000 136,187,000 121,418,000 116,331,000 100,816,000 90,727,000 87,920,000 90,343,000 92,322,000 87,171,000 87,880,000 90,568,000 89,684,000 90,244,000 96,039,000 101,592,000 102,367,000 96,006,000 96,866,000 94,498,000 92,365,000 95,419,000 95,458,000 95,638,000 93,274,000 94,415,000 95,585,000 98,472,000 95,254,000 97,834,000 92,562,000 85,354,000 78,251,000 80,473,000 80,182,000 75,623,000 70,780,000 72,613,000 64,503,000 54,368,000 63,656,000 67,049,000 52,505,000 57,381,000 63,491,000 55,155,000 47,974,000 42,104,000 41,746,000 39,992,000 42,563,000 59,216,000 61,045,000 67,491,000 65,533,000 65,197,000 67,894,000 76,416,000 82,013,000 89,286,000 117,724,000 116,945,000 103,947,365,000 114,323,000 134,157,000 73,136,000 67,931,688 50,194,000 49,722,000 48,014,000 39,111,383 51,746,000 66,585,000 80,616,000 59,343,865 
        income tax receivable
        19,867,000 25,566,000   3,206,000          446,000  3,111,000 3,262,000    1,726,000    4,125,000   2,146,000 3,008,000 2,361,000    1,102,000    2,773,000                                        
        prepaid expenses and other
      3,151,000 6,201,000 8,766,000 8,625,000 2,485,000 3,992,000 20,058,000 9,978,000 3,391,000 3,167,000 4,146,000 3,342,000 2,278,000 2,651,000 3,225,000 3,552,000 4,003,000 1,889,000 2,550,000 1,885,000 1,019,000 1,723,000 2,242,000 2,159,000 1,751,000 2,372,000 2,906,000 3,170,000 2,021,000 2,479,000 6,362,000 2,788,000 1,792,000 2,340,000 2,732,000 3,003,000 1,751,000 2,235,000 2,577,000 2,371,000 1,350,000 2,013,000 2,004,000 3,846,000 1,635,000 5,541,000 15,422,000 1,135,000 3,579,000 1,899,000 2,621,000 2,578,000 1,892,000 2,124,000 1,138,000 2,331,000    788,000    8,503,000    6,712,876,000    18,628,669    6,910,293    5,112,219 
        total current assets
      1,262,154,000 1,210,575,000 1,264,556,000 1,328,514,000 1,353,618,000 1,401,641,000 1,294,702,000 1,207,068,000 1,135,220,000 1,035,050,000 925,911,000 823,325,000 596,298,000 555,133,000 564,709,000 533,882,000 525,978,000 549,238,000 544,710,000 541,954,000 512,055,000 519,237,000 503,336,000 461,185,000 452,542,000 446,984,000 422,643,000 409,164,000 395,810,000 376,382,000 366,381,000 361,281,000 356,401,000 370,155,000 351,388,000 341,474,000 337,047,000 345,315,000 352,488,000 340,269,000 336,068,000 330,066,000 330,589,000 307,911,000 307,687,000 306,850,000 313,971,000 310,550,000 377,919,000 377,054,000 357,056,000 367,551,000 342,097,000 331,967,000 315,020,000 407,499,000 414,858,000 412,189,000 413,246,000 411,758,000 411,012,000 416,540,000 414,772,000 395,975,000 407,454,000 411,254,000 382,167,000 371,050,151,000 469,299,000 426,334,000 273,203,000 255,233,456 223,126,000 188,244,000 173,209,000 162,164,326 185,556,000 171,895,000 207,138,000 146,277,125 
        property, plant and equipment
      779,017,000 756,863,000 713,937,000 683,747,000 642,446,000 616,601,000 587,826,000 561,205,000 524,465,000 494,916,000                                                                       
        other assets
      369,000 474,000 496,000 518,000 541,000 490,000 522,000 509,000 539,000 570,000 602,000 636,000 670,000 553,000 600,000 634,000 704,000 737,000 771,000 806,000 790,000 165,000 165,000 165,000 193,000 193,000 193,000 193,000 193,000 193,000 193,000 6,192,000 3,192,000 3,193,000 454,000 275,000 274,000 930,000 1,636,000 1,741,000 1,587,000 1,506,000 1,616,000 543,000 725,000 693,000 798,000 626,000 267,000 260,000 222,000 622,000 194,000 191,000 197,000 203,000 211,000 142,000 129,000 139,000 103,000 98,000 107,000 106,000 120,000 115,000 104,000 119,873,000 102,000 97,000 107,000 105,017 123,000 982,000 123,000 671,899 126,000 120,000 111,000 97,880 
        total assets
      2,041,540,000 1,967,912,000 1,978,989,000 2,012,779,000 1,996,605,000 2,018,732,000 1,883,050,000 1,768,782,000 1,660,224,000 1,530,536,000 1,393,381,000 1,274,904,000 1,030,186,000 966,454,000 941,521,000 884,045,000 866,346,000 883,154,000 870,247,000 854,181,000 816,963,000 818,060,000 799,043,000 754,714,000 742,847,000 733,975,000 708,365,000 695,298,000 679,128,000 657,964,000 644,479,000 636,097,000 619,844,000 628,116,000 603,315,000 585,124,000 572,508,000 572,751,000 564,353,000 542,664,000 534,445,000 525,826,000 525,697,000 498,075,000 472,598,000 472,467,000 475,872,000 466,899,000 522,573,000 516,146,000 491,472,000 501,999,000 477,276,000 464,139,000 446,516,000 534,558,000 542,059,000 539,001,000 539,770,000 533,339,000 530,945,000 536,398,000 532,934,000 513,912,000 522,053,000 519,563,000 486,474,000 474,156,594,000 572,704,000 529,272,000 371,238,000 348,475,618 312,427,000 276,047,000 261,198,000 251,515,085 272,088,000 258,932,000 290,913,000 225,299,232 
        liabilities and stockholders’ equity
                                                                                      
        current liabilities:
                                                                                      
        trade accounts payable
      84,355,000 80,548,000 80,914,000 90,725,000 41,594,000 62,780,000 68,576,000 70,708,000 73,189,000 75,353,000 67,475,000 77,458,000 69,811,000 56,726,000 58,122,000 30,039,000 34,062,000 40,509,000 39,907,000 46,053,000 30,673,000 36,706,000 46,674,000 34,684,000 41,097,000 36,330,000 32,158,000 37,587,000 35,642,000 18,577,000 22,204,000 25,090,000 21,579,000 28,743,000 26,051,000 24,915,000 29,722,000 31,147,000 24,865,000   23,465,000    20,112,000    14,676,000   32,897,000   11,942,000  10,691,000  4,639,000    22,170,000    13,412,749,000    17,276,887    15,090,694    24,430,205 
        accrued liabilities
      69,157,000 79,590,000 80,502,000 70,725,000 63,969,000 81,381,000 83,040,000 72,782,000 61,525,000 78,747,000 68,623,000 58,540,000 34,886,000 36,866,000 36,531,000 27,338,000 23,646,000 34,787,000 33,197,000 30,145,000 24,512,000 36,866,000 34,015,000 26,941,000 23,621,000 35,005,000 29,525,000 24,979,000 20,560,000 27,986,000 23,687,000 20,217,000 16,704,000 25,499,000 22,922,000 21,779,000 17,773,000 28,191,000 26,180,000   23,006,000    23,438,000    25,312,000   23,191,000   17,140,000  15,208,000  20,104,000    23,162,000    23,771,944,000    19,304,108    13,658,285    10,431,600 
        income taxes payable
      14,895,000    23,610,000   1,689,000 48,393,000  15,932,000 42,093,000 13,190,000  1,420,000 2,499,000     2,558,000  938,000  4,205,000 296,000 276,000  2,735,000 4,319,000     1,121,000 1,729,000   4,897,000   1,447,000    1,807,000    1,174,000                               
        total current liabilities
      168,407,000 160,138,000 161,416,000 161,450,000 129,173,000 144,161,000 151,616,000 145,179,000 183,107,000 154,100,000 152,030,000 178,091,000 117,887,000 93,592,000 96,073,000 59,876,000 57,708,000 75,296,000 73,104,000 76,198,000 57,743,000 73,572,000 81,627,000 61,625,000 68,923,000 71,631,000 61,959,000 62,566,000 58,937,000 50,882,000 52,248,000 54,379,000 46,203,000 62,715,000 56,718,000 50,596,000 48,953,000 59,338,000 55,942,000   47,918,000    45,357,000    42,570,000   58,153,000   130,617,000  33,738,000  33,725,000    49,065,000    37,184,693,000    56,120,779    29,481,910    40,020,275 
        long-term liabilities:
                                                                                      
        deferred income taxes and other
      60,176,000 60,197,000 55,881,000 54,437,000 53,528,000 55,905,000 46,717,000 39,707,000 33,180,000 37,347,000 34,476,000 33,188,000 32,902,000 35,133,000 31,798,000 32,058,000 31,466,000 28,762,000 28,464,000 25,340,000 24,580,000                                                            
        total long-term liabilities
      60,176,000  55,881,000 54,437,000 53,528,000                                                                            
        total liabilities
      228,583,000  217,297,000 215,887,000 182,701,000                                                                            
        commitments and contingencies
                                                                                      
        stockholders’ equity:
                                                                                      
        preferred stock, .01 par value:
                                                                                      
        authorized shares – 2,000,000; none issued
                                                                                      
        common stock
                                                          264,000   263,000    262,000    261,000    260,353,000    259,391    258,631     
        authorized shares – 40,000,000;
                                                                                      
        issued shares – 27,442,440 and 27,276,834
      274,000                                                                                
        additional paid-in capital
      108,452,000 106,035,000 99,984,000 94,468,000 87,978,000 83,622,000 80,930,000 78,123,000 74,847,000 72,753,000 71,217,000 70,366,000 68,777,000 67,885,000 67,494,000 66,554,000 63,469,000 63,009,000 62,705,000 62,652,000 62,013,000 60,822,000 59,880,000 59,568,000 59,147,000 58,192,000 57,563,000 56,412,000 55,982,000 55,311,000 54,837,000 53,725,000 53,494,000 53,024,000 51,672,000 51,406,000 50,922,000 50,598,000 50,416,000   49,459,000    48,298,000    47,342,000   45,040,000   44,057,000  42,830,000  42,486,000    41,806,000    40,848,753,000    38,931,690    38,019,869    34,193,455 
        treasury stock
      -867,222,000 -867,222,000 -781,244,000 -658,798,000 -530,891,000 -402,639,000 -380,262,000 -286,870,000 -213,397,000 -155,014,000 -144,450,000 -111,718,000 -111,718,000 -111,718,000 -111,718,000 -111,718,000 -111,636,000 -91,056,000 -91,056,000 -91,056,000 -91,056,000 -91,056,000 -91,056,000 -91,056,000 -91,056,000 -91,056,000 -91,056,000 -91,056,000 -91,056,000 -91,056,000 -91,056,000 -91,056,000 -91,056,000 -91,056,000 -91,056,000 -88,134,000 -88,134,000 -88,134,000 -88,134,000   -88,134,000    -88,134,000    -21,496,000   -21,294,000   -21,269,000  -21,269,000  -21,269,000    -17,315,000    -15,274,643,000    -15,274,643    -15,274,643    -15,274,643 
        retained earnings
      2,571,453,000 2,508,491,000 2,442,679,000 2,360,950,000 2,256,545,000 2,137,412,000 1,983,778,000 1,792,372,000 1,582,216,000 1,421,079,000 1,279,837,000 1,104,706,000 922,068,000 881,292,000 857,604,000 837,005,000 825,070,000 806,874,000 796,761,000 780,778,000 763,414,000 750,421,000 725,808,000 702,548,000 684,876,000 673,940,000 645,868,000 632,321,000 621,803,000 608,586,000 597,599,000 592,014,000 584,589,000 576,404,000 565,865,000 551,768,000 540,830,000 530,456,000 525,817,000   494,990,000    449,734,000    431,631,000   383,367,000   369,933,000  372,435,000  368,140,000    330,217,000    301,286,530,000    186,618,864    136,540,408    103,180,371 
        total stockholders’ equity
      1,812,957,000 1,747,577,000 1,761,692,000 1,796,892,000 1,813,904,000 1,818,666,000 1,684,717,000 1,583,896,000 1,443,937,000 1,339,089,000 1,206,875,000 1,063,625,000 879,397,000 837,729,000 813,650,000 792,111,000 777,172,000 779,096,000 768,679,000 752,643,000 734,640,000 720,456,000 694,901,000 671,329,000 653,236,000 641,345,000 612,643,000 597,945,000 586,997,000 573,109,000 561,648,000 554,950,000 547,294,000 538,639,000 526,748,000 515,307,000 503,885,000 493,187,000 488,366,000   456,581,000    410,164,000    457,743,000   407,377,000   392,984,000  394,258,000  389,619,000    354,969,000    327,120,993,000    210,535,302    159,544,265    121,776,397 
        total liabilities and stockholders’ equity
      2,041,540,000 1,967,912,000 1,978,989,000 2,012,779,000 1,996,605,000 2,018,732,000 1,883,050,000 1,768,782,000 1,660,224,000 1,530,536,000 1,393,381,000 1,274,904,000 1,030,186,000 966,454,000 941,521,000 884,045,000 866,346,000 883,154,000 870,247,000 854,181,000 816,963,000 818,060,000 799,043,000 754,714,000 742,847,000 733,975,000 708,365,000 695,298,000 679,128,000 657,964,000 644,479,000 636,097,000 619,844,000 628,116,000 603,315,000 585,124,000 572,508,000 572,751,000 564,353,000   525,826,000    472,467,000    516,146,000   477,276,000   534,558,000  539,001,000  533,339,000    513,912,000    474,156,594,000    348,475,618    251,515,085    225,299,232 
        income taxes receivable
       4,769,000    15,143,000    951,000    1,256,000    3,602,000    1,389,000            7,344,000    1,951,000       350,000   1,015,000   975,000    1,078,000 2,660,000    1,587,000    9,784,000    18,523,158,000        4,751,043     
        issued shares – 27,276,834 and 27,139,611
       273,000                                                                               
        issued shares – 27,257,531 and 27,139,611
        273,000                                                                              
        issued shares – 27,252,624 and 27,139,611
         272,000                                                                             
        issued shares – 27,242,118 and 27,139,611
          272,000                                                                            
        issued shares – 27,139,611 and 27,083,100
           271,000 271,000                                                                          
        issued shares – 27,132,850 and 27,083,100
             271,000                                                                         
        issued shares – 27,127,850 and 27,083,100
              271,000                                                                        
        issued shares – 27,083,100 and 27,025,388
               271,000                                                                       
        property, plant and equipment - at cost:
                                                                                      
        land and land improvements
                72,838,000 73,725,000 60,662,000 60,662,000 60,662,000 60,662,000 60,648,000 52,354,000 52,354,000 51,317,000 51,169,000 51,169,000 51,169,000 51,075,000 51,075,000 51,024,000 51,024,000 50,548,000 50,548,000 50,934,000 50,635,000 50,635,000 50,635,000 50,580,000 50,326,000 48,323,000 48,305,000 48,305,000 48,305,000 48,269,000 48,269,000 47,324,000 47,744,000 44,217,000 18,488,000 18,466,000 18,343,000 18,124,000 17,971,000 17,971,000 17,971,000 17,971,000 17,971,000 17,928,000 17,928,000 13,177,000 11,727,000 11,727,000 11,727,000 11,727,000    10,837,000    9,591,600,000    8,375,138    6,783,457    5,858,077 
        construction-in-progress
                60,097,000 42,440,000 113,788,000 91,688,000 66,160,000 45,226,000 42,824,000 49,847,000 45,280,000 31,126,000 27,409,000 24,623,000 28,370,000 24,047,000 19,522,000 13,782,000 16,122,000 36,750,000 40,394,000 35,825,000 31,319,000 30,198,000 23,332,000 33,942,000 43,444,000 58,174,000 51,037,000 48,245,000 29,262,000 17,884,000 14,372,000 12,222,000 11,543,000 9,206,000 27,413,000 25,434,000 22,562,000 29,897,000 16,233,000 12,480,000 8,758,000 12,954,000 15,564,000 9,925,000 6,842,000 6,481,000    7,483,000    10,058,000    6,671,210,000    12,112,616    3,378,129    2,396,219 
        buildings and improvements
                215,452,000 216,793,000 153,141,000 153,094,000 152,896,000 152,896,000 152,723,000 152,536,000 152,322,000 152,322,000 152,258,000 151,758,000 151,092,000 151,092,000 150,603,000 150,603,000 141,339,000 122,379,000 121,639,000 121,432,000 121,385,000 121,253,000 121,080,000 102,432,000 101,051,000 97,064,000 96,593,000 96,405,000 96,405,000 96,175,000 93,406,000 90,930,000 90,367,000 90,949,000 90,833,000 90,790,000 90,438,000 76,055,000 75,952,000 75,952,000 75,611,000 69,920,000 69,440,000 69,440,000 69,477,000 68,125,000 68,125,000 65,058,000 65,026,000 65,026,000 65,026,000 64,615,000 61,342,000 61,342,000 47,065,000 47,065,000 47,065,000 47,065,117,000 47,065,000 47,065,000 38,063,000 38,063,138 38,130,000 38,130,000 38,130,000 37,972,384 31,120,000 30,994,000 30,994,000 30,855,408 
        machinery and equipment
                391,491,000 389,647,000 378,465,000 373,902,000 363,976,000 353,300,000 341,896,000 334,204,000 326,893,000 326,542,000 320,153,000 314,175,000 304,191,000 303,937,000 301,743,000 300,250,000 303,344,000 298,947,000 290,038,000 289,493,000 287,781,000 281,802,000 276,776,000 274,755,000 260,954,000 241,724,000 237,456,000 228,371,000 227,479,000 225,923,000 225,247,000 224,502,000 220,913,000 218,630,000 197,294,000 196,838,000 193,087,000 191,725,000 191,212,000 186,032,000 179,993,000 179,136,000 174,916,000 174,531,000 173,605,000 168,984,000 164,480,000 166,170,000 159,949,000 156,234,000 144,501,000 143,315,000 143,081,000 142,867,000 142,622,000 140,252,000 136,663,000 136,552,315,000 134,053,000 125,910,000 121,656,000 120,326,345 119,835,000 118,561,000 116,416,000 115,865,574 115,747,000 109,616,000 109,488,000 104,849,050 
        furniture and fixtures
                13,646,000 13,714,000 12,015,000 15,345,000 12,249,000 12,249,000 11,796,000 10,926,000 10,855,000 10,123,000 9,920,000 9,687,000 9,687,000 9,687,000 9,608,000 9,602,000 9,522,000 9,350,000 9,204,000 9,204,000 9,188,000 9,207,000 9,114,000 9,012,000 8,960,000 8,929,000 8,779,000 8,682,000 8,652,000 8,620,000 8,564,000 8,564,000 8,525,000 8,466,000 8,466,000 8,426,000 8,296,000 8,193,000 7,947,000 7,947,000 7,440,000 7,133,000 7,066,000 6,807,000 6,807,000 6,742,000 6,742,000 6,742,000 6,674,000 6,604,000 6,542,000 6,543,000 6,124,000 6,124,000 4,155,000 4,147,000 4,115,000 4,072,333,000 3,928,000 3,916,000 3,654,000 3,624,317 3,624,000 3,634,000 3,500,000 3,194,755 2,992,000 2,966,000 2,966,000 2,941,609 
        total property, plant and equipment
                753,524,000 736,319,000 718,071,000 694,691,000 655,943,000 624,333,000 609,887,000 599,867,000 587,704,000 571,430,000 560,909,000 551,412,000 544,509,000 539,838,000 532,551,000 525,261,000 521,351,000 517,974,000 511,823,000 506,888,000 500,308,000 493,095,000 480,937,000 470,721,000 464,735,000 454,214,000 442,170,000 430,008,000 410,103,000 396,871,000 389,858,000 383,542,000 379,092,000 371,468,000 342,494,000 339,954,000 332,726,000 323,994,000 309,315,000 300,382,000 289,773,000 287,114,000  278,631,000 274,659,000  260,340,000 257,059,000   242,512,000 239,449,000                   
        accumulated depreciation
                -286,656,000 -285,376,000 -284,853,000 -283,923,000 -279,731,000 -274,804,000 -270,223,000 -266,688,000 -262,938,000 -260,009,000 -256,791,000 -252,754,000 -248,967,000 -246,474,000 -242,439,000 -238,463,000 -235,822,000 -232,033,000 -228,698,000 -225,499,000 -222,403,000 -224,471,000 -220,686,000 -215,953,000 -213,262,000 -210,839,000 -206,983,000 -203,502,000 -199,874,000 -196,217,000 -193,068,000 -189,288,000 -185,600,000 -181,847,000 -178,308,000 -175,030,000 -171,623,000 -168,271,000 -164,928,000 -161,550,000 -155,579,000 -153,288,000 -149,972,000 -146,650,000 -143,360,000 -136,653,000 -133,350,000 -130,389,000 -127,057,000 -125,632,000    -113,397,000    -100,966,005,000    -89,364,409    -78,515,439    -67,976,136 
        property, plant and equipment - net
                466,868,000 450,943,000 433,218,000  376,212,000 349,529,000 339,664,000  324,766,000 311,421,000 304,118,000  295,542,000 293,364,000 290,112,000  285,529,000 285,941,000 283,125,000  277,905,000                     133,826,000  131,981,000 131,299,000                          
        issued shares – 27,060,100 and 27,025,388
                271,000                                                                      
        issued shares – 27,056,100 and 27,025,388
                 271,000                                                                     
        issued shares – 27,040,850 and 27,025,388
                  270,000                                                                    
        property, plant and equipment – at cost:
                                                                                      
        property, plant and equipment – net
                   410,768,000    333,179,000    298,658,000    286,798,000    281,389,000  268,624,000 260,251,000 254,768,000 251,473,000 243,375,000 235,187,000 226,506,000 210,229,000 200,654,000 196,790,000 194,254,000 193,492,000 189,621,000 164,186,000  161,103,000 155,723,000  138,832,000   134,985,000       121,442,000                     
        issued shares – 27,025,388 and 26,939,403
                   270,000 270,000                                                                  
        issued shares – 27,005,388 and 26,939,403
                     270,000                                                                 
        issued shares – 26,946,916 and 26,939,403
                      269,000                                                                
        issued shares – 26,939,403 and 26,906,603
                       269,000                                                               
        issued shares – 26,989,403 and 26,906,603
                        269,000                                                              
        issued shares – 26,933,103 and 26,906,603
                         269,000                                                             
        issued shares – 26,921,603 and 26,906,603
                          269,000                                                            
        deferred income taxes
                           24,032,000 22,515,000 21,760,000 20,688,000 20,999,000 33,763,000 34,787,000 33,194,000 33,973,000 6,357,000 9,072,000 7,920,000     1,306,000 414,000  353,000 4,756,000 2,894,000 2,156,000 5,800,000 5,790,000 5,968,000 2,633,000 5,218,000                                
        issued shares – 26,906,603 and 26,859,203
                           269,000                                                           
        issued shares – 26,882,603 and 26,859,203
                            269,000                                                          
        issued shares – 26,876,603 and 26,859,203
                             269,000                                                         
        issued shares – 26,871,603 and 26,859,203
                              269,000                                                        
        issued shares – 26,859,203 and 26,762,703
                               269,000                                                       
        issued shares – 26,840,203 and 26,762,703
                                268,000                                                      
        issued shares – 26,784,486 and 26,762,703
                                 268,000                                                     
        issued shares – 26,775,986 and 26,762,703
                                  268,000                                                    
        issued shares – 26,762,703 and 26,715,216
                                   268,000                                                   
        non-current deferred income taxes
                                    30,583,000 26,768,000 26,347,000  19,849,000 19,221,000 19,670,000                     10,451,000                       
        issued shares – 26,750,703 and 26,715,216
                                    268,000                                                  
        property, plant and equipment—at cost:
                                                                                      
        issued shares – 26,723,616 and 26,715,216
                                     267,000                                                 
        issued shares – 26,721,216 and 26,715,216
                                      267,000                                                
        noncurrent deferred income taxes
                                       26,762,000    20,226,000    21,327,000    16,946,000    15,833,000   11,746,000   10,957,000    9,320,000    8,968,000    9,850,908,000    10,619,537    12,652,428    10,077,560 
        issued shares – 26,715,216 and 26,657,003
                                       267,000                                               
        issued shares – 26,682,603 and 26,657,003
                                        267,000                                              
        issued shares – 26,679,003 and 26,657,003
                                         267,000                                             
        issued shares – 26,663,803 and 26,657,003
                                          267,000                                            
        issued shares – 26,657,003 and 26,631,653
                                           267,000                                           
        in thousands of dollars, except share data
                                                               2,009,000                       
        non-current deferred income taxes and other
                                            20,045,000                                          
        authorized shares – 40,000,000; issued shares – 26,654,703 and 26,631,653
                                            267,000                                          
        note:
                                                                                      
        issued shares – 26,631,653 and 26,597,753
                                               266,000                                       
        property, plant and equipment — at cost:
                                                                                      
        property, plant and equipment — net
                                                   164,924,000     134,194,000     126,856,000        117,831,000                 
        authorized shares — 2,000,000; none issued
                                                                                      
        issued shares – 26,597,753 and 26,586,703
                                                   266,000                                   
        property, plant and equipment—net
                                                      144,387,000                                
        preferred stock, .01 par value: authorized shares – 2,000,000; none issued
                                                                                      
        issued shares – 26,586,703 and 26,366,752
                                                       266,000                               
        in thousands of dollars
                                                                                      
        deferred income taxes receivable
                                                        4,753,000                              
        current deferred income taxes
                                                         6,915,000 4,485,000 1,961,000    7,839,000        1,879,000  2,300,710,000 4,278,000 3,046,000 2,729,000 1,121,079    732,931     
        current income taxes payable
                                                          2,065,000                   19,539,784        5,158,470 
        current portion of notes payable
                                                             100,430,000                         
        preferred stock, .01 par value: authorized shares– 2,000,000. issued and outstanding shares – none
                                                                                      
        long-term notes payable
                                                                 100,675,000    100,910,000    98,974,291,000             
        other long-term liabilities
                                                                         1,025,709,000             
        convertible preferred stock, .01 par value: authorized shares — 2,000,000. issued and outstanding shares — none.
                                                                                      
        prepaid expenses and other assets
                                                              18,746,000 5,166,000 4,408,000  1,012,000 1,244,000 1,109,000  1,514,000 7,081,000 12,542,000  23,937,000 15,156,000 11,964,000  11,707,000 9,400,000 14,278,000  7,925,000 7,361,000 8,028,000  
        current income taxes receivable
                                                               2,035,000 980,000                      
        construction in progress
                                                              9,266,000 7,362,000 10,076,000  15,606,000 14,139,000 13,432,000  19,921,000 14,230,000 10,913,000  6,509,000 11,341,000 18,291,000  6,929,000 2,862,000 4,189,000  6,325,000 10,389,000 4,668,000  
        net property, plant and equipment
                                                              126,990,000 126,670,000   119,830,000 119,760,000                   
        long term notes payable
                                                               100,554,000                       
        authorized shares – 40,000,000; issued shares – 26,154,452 and 26,145,452
                                                               262,000                       
        total property, plant, and equipment
                                                                253,452,000    234,816,000  224,555,000 215,298,000 208,358,000  201,023,000 197,638,000 190,039,000  175,611,000 170,280,000 169,313,000  162,078,000 159,859,000 154,010,000  
        net property, plant, and equipment
                                                                126,395,000    118,055,000  114,479,000 108,194,000 104,203,000              
        convertible preferred stock, .01 par value: authorized shares– 2,000,000. issued and outstanding shares – none
                                                                                      
        current taxes receivable
                                                                  2,748,000 2,926,000   10,909,000  96,000       3,453,000 4,739,000  4,613,000    
        land
                                                                  10,837,000 10,837,000 10,837,000  10,792,000 9,604,000 9,602,000  9,468,000 9,406,000 8,375,000  7,093,000 7,093,000 7,078,000  5,894,000 5,894,000 5,894,000  
        accumulated depreciation and amortization
                                                                  -122,682,000 -119,689,000 -116,761,000  -110,076,000 -107,104,000 -104,155,000  97,720,000 94,797,000 92,111,000  86,433,000 83,459,000 81,447,000  75,672,000 72,942,000 70,346,000  
        convertible preferred stock, .01 par value: authorized shares— 2,000,000. issued and outstanding shares — none.
                                                                                      
        cash
                                                                      59,243,000 48,794,000 48,938,000  34,683,000 2,760,000 2,063,000  2,022,000 1,058,000 2,289,000  4,196,000 1,129,000 369,000  
        property, plant, and equipment, at cost:
                                                                                      
        property, plant and equipment-on the basis of cost:
                                                                                      
        property, plant, and equipment — at cost:
                                                                                      
        long-term note payable
                                                                             70,438,087    49,836,482    53,425,000 
        other long term liabilities
                                                                             761,913         
        convertible preferred stock, .01 par value: authorized shares— 2,000,000. issued and outstanding shares — none
                                                                                      
        note: the consolidated balance sheet at december 31, 2004 as presented, is derived from the audited consolidated financial statements at that date.
                                                                                      
        property, plant, and equipment – at cost:
                                                                                      
        contingencies
                                                                                      
        convertible preferred stock, .01 par value: authorized shares– 2,000,000. issued and outstanding shares – none.
                                                                                      
        accumulated other comprehensive income
                                                                                     -492,454 
        see accompanying notes.
                                                                                      
        stockholders’ equity
                                                                                      
        convertible preferred stock, .01 par value:
                                                                                      
        authorized shares – 2,000,000 issued and outstanding shares – none common stock, .01 par value:
                                                                                      
        authorized shares – 20,000,000 issued and outstanding shares – 16,966,750 in 2003 and 16,958,365 in 2002
                                                                                     169,668 
      Cashflow Statements:
      Quarterly
      Annual
        Unit: USD2024-03-31 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 2011-06-30 2011-03-31 2010-12-31 2010-09-30 2010-06-30 2010-03-31 2009-12-31 2009-09-30 2009-06-30 2009-03-31 2008-12-31 2008-09-30 2008-06-30 2008-03-31 2007-12-31 2007-09-30 2007-06-30 2007-03-31 2006-06-30 2006-03-31 2005-12-31 2005-09-30 2005-06-30 2005-03-31 2004-12-31 2004-09-30 2004-06-30 2004-03-31 
                                                                                     
          operating activities:
                                                                                     
          net income
        63,277,000 66,123,000 82,052,000 104,741,000 119,483,000 153,998,000 191,773,000 210,539,000 161,531,000 141,642,000 175,538,000 183,053,000 41,189,000 24,100,000 21,012,000 12,348,000 18,607,000 10,535,000 16,401,000 17,782,000 13,411,000 25,030,000 23,678,000 18,089,000 11,353,000 28,488,000 13,964,000 10,933,000 13,632,000 11,402,000 5,999,000 7,839,000 8,599,000 10,953,000 14,511,000 11,352,000 10,789,000 5,053,000 11,063,000 10,153,000 10,854,000 11,211,000 13,802,000 15,502,000 6,395,000 5,221,000 5,527,000 2,369,000 6,694,000 9,461,000 10,654,000  5,092,000 8,135,000 -2,466,000 -1,904,000 324,000 600,000 4,616,000 16,744,000 8,077,000 1,331,000 13,619,000 -1,108,000 5,754,000 19,711,000 6,439,000 57,059,000 16,137,000 35,410,456 11,205,000 2,426,000 1,037,000 6,436,037 6,391,000 7,268,000 13,265,000 
          adjustments to reconcile net income to net cash from operating activities:
                                                          3,425,000                           
          depreciation and amortization
        8,526,000 8,161,000 8,111,000 8,088,000 7,692,000 7,197,000 6,514,000 6,311,000 6,210,000 6,134,000 6,177,000 5,677,000 5,300,000 5,145,000 4,993,000 4,750,000 4,571,000 4,453,000 4,469,000 4,441,000 4,344,000 4,192,000 4,108,000 4,104,000 4,109,000 4,071,000 3,965,000 3,850,000 3,798,000 3,803,000 4,078,000 4,084,000 4,846,000 4,091,000 4,124,000 3,951,000 3,897,000 3,822,000 3,818,000 3,918,000 3,895,000 3,841,000 3,895,000 3,700,000 3,352,000 3,446,000 3,598,000 3,627,000 3,609,000    3,424,000 3,388,000 3,473,000 3,361,000 3,324,000 3,512,000 3,494,000 3,370,000 3,407,000 3,583,000 3,573,000 3,567,000 3,460,000 3,389,000 3,403,000 2,911,000 2,837,000  3,109,000 3,071,000 3,072,000  2,977,000 2,847,000 2,795,000 
          deferred income taxes
        -9,000 4,338,000 1,465,000 930,000 -2,391,000 9,200,000 7,024,000 6,539,000 -3,224,000 2,903,000 1,319,000 318,000 -2,276,000 3,347,000 -245,000 608,000 2,719,000 332,000 2,228,000 768,000 48,000 1,517,000 755,000 1,072,000 -311,000 -12,764,000 -1,024,000 1,593,000 -779,000 -2,967,000 1,100,000 1,573,000 -968,000 8,762,000 5,079,000 2,826,000 -352,000 -588,000 -1,300,000 371,000 3,866,000 -430,000 1,076,000 5,275,000 -506,000 -1,837,000 -1,338,000 3,189,000 -6,099,000 2,414,000 -2,410,000  -3,305,000 3,825,000 -3,249,000                       
          stock-based compensation attributable to equity awards
        689,000 5,534,000 5,516,000 6,387,000 4,040,000 2,691,000 2,756,000 3,276,000 1,939,000 867,000 851,000 1,331,000 737,000 391,000 396,000 631,000 460,000 304,000 53,000 502,000 760,000 187,000 187,000 421,000 649,000 118,000 118,000                                                   
          other
        221,000 1,946,000 810,000 734,000 673,000 1,686,000 -18,000 -58,000 186,000 746,000 1,007,000 4,030,000 48,000 -48,000 -2,000 -10,000 530,000 -47,000 912,000 -62,000 -49,000 -42,000 -140,000 2,000 -7,000 -186,000 111,000 -13,000 -499,000 -271,000 1,539,000 42,000 -16,000 -44,000 -124,000 21,000 -43,000 -440,000 283,000 57,000 -16,000 -818,000 60,000 65,000 89,000 -617,000 154,000 117,000 255,000 -414,000 109,000  139,000 169,000 -251,000 -546,000 -124,000 87,000 104,000 -555,000 227,000 161,000 268,000 -288,000 65,000 56,000 78,000           
          changes in operating assets and liabilities:
                                                                                     
          accounts receivable
        4,045,000 19,888,000 -31,906,000 15,213,000 18,931,000 62,907,000 44,463,000 -56,728,000 -58,278,000 45,052,000 38,013,000 -226,945,000 -72,928,000 -18,571,000 -65,143,000 32,056,000 -1,725,000 21,771,000 11,099,000 -24,498,000 3,883,000 35,238,000 -12,177,000 -9,948,000 -19,581,000 -6,186,000 -2,146,000 -8,970,000 -26,728,000 -1,324,000 -4,766,000 -3,550,000 10,850,000 5,940,000 8,301,000 -4,735,000 11,337,000 23,272,000 8,442,000 -19,475,000 -3,408,000 21,194,000 -761,000 -23,383,000 -14,810,000 9,611,000 -2,019,000 22,283,000 -28,451,000 -11,899,000 -44,487,000  -13,493,000 -39,848,000 -9,439,000 -9,948,000 -11,718,000 -2,050,000 16,446,000 105,163,000 6,225,000 -4,407,000 -18,798,000 29,677,000 -10,771,000 -32,160,000 11,287,000 -87,949,000 -18,426,000 -5,773,273 -34,787,000 -20,766,000 4,818,000 8,279,900 -20,303,000 21,276,000 -36,875,000 
          inventories
        -9,990,000 -4,688,000 4,224,000 10,663,000 -20,691,000 -17,000,000 -14,769,000 -5,087,000 -15,515,000 -10,089,000 -2,807,000 2,423,000 1,979,000 -5,151,000 709,000 2,688,000 -884,000 560,000 5,795,000 5,553,000 775,000 -6,361,000 860,000 -2,368,000 -2,133,000 3,054,000 39,000 180,000 -2,364,000 1,141,000 1,170,000 2,887,000 -3,218,000 2,580,000 -5,272,000 -7,208,000 -7,103,000 2,222,000 -291,000 -4,559,000 -4,843,000 1,833,000 -8,110,000 -10,135,000 9,288,000 3,393,000 -14,544,000 4,876,000 6,110,000 -7,181,000 -5,870,000  -1,754,000 -7,462,000 10,033,000     -336,000 2,697,000                 
          other assets
        3,093,000 2,537,000 -174,000 -6,159,000 1,478,000 16,040,000 -10,154,000 -6,614,000 -252,000 952,000 -829,000 -1,092,000 907,000 587,000 319,000 475,000 -2,127,000 649,000 -678,000 -924,000 724,000 507,000 -96,000 -393,000 609,000  251,000 -1,161,000 446,000  46,000                              272,000                 
          trade accounts payable and accrued liabilities
        -3,384,000 -7,775,000 3,511,000 46,378,000 -41,031,000 -2,212,000 5,330,000 9,108,000 -24,234,000 16,170,000 3,477,000 37,486,000 9,753,000 -4,182,000 33,276,000 -5,212,000 -16,302,000 609,000 -835,000 18,703,000 -16,437,000 -9,482,000 19,290,000 -3,085,000 -6,558,000 9,927,000 569,000 5,260,000 9,248,000 -226,000 5,226,000 4,330,000 -17,913,000 6,424,000 2,720,000 -1,068,000 -13,935,000 5,711,000 7,465,000 -3,518,000 -349,000 -10,358,000 10,728,000 6,294,000 -3,743,000 -5,912,000 -668,000 16,879,000 -6,682,000 -12,967,000 8,917,000  9,711,000 -7,877,000 14,558,000     -17,911,000 -14,853,000                 
          current income taxes receivable / payable
        19,664,000 15,098,000 5,699,000 -49,176,000 38,753,000 -11,937,000 -4,895,000 -46,704,000 49,344,000 -16,883,000 -26,161,000 28,903,000 14,446,000 -2,676,000 -1,079,000 2,945,000 3,156,000 -491,000 151,000 -5,820,000 3,947,000 -2,327,000 2,664,000 -5,931,000 3,909,000  4,401,000 -6,860,000 -1,584,000 6,493,000 862,000 -639,000 5,007,000 -8,449,000 -608,000 295,000 3,409,000 -6,839,000 3,181,000 4,501,000 -4,118,000 -2,009,000 1,338,000 2,632,000 -2,146,000 -492,000 3,320,000 -9,597,000 7,414,000 -8,459,000 5,419,000  5,367,000 69,000 1,538,000  6,576,000 -1,016,000 609,000                   
          net cash from operating activities
        86,132,000 109,817,000 79,353,000 139,099,000 126,937,000 222,570,000 228,024,000 120,582,000 117,707,000 187,494,000 196,585,000 35,184,000 -845,000 2,942,000 -5,764,000 51,279,000 9,005,000 38,675,000 39,595,000 16,445,000 11,406,000 48,459,000 39,129,000 1,963,000 -7,961,000 27,064,000 20,248,000 5,147,000 -4,446,000 18,997,000 15,462,000 15,762,000 8,339,000 28,184,000 28,795,000 4,442,000 9,347,000 33,829,000 32,548,000 -9,738,000 6,483,000 24,742,000 22,785,000 -2,090,000 1,781,000 23,521,000 -20,434,000 45,819,000 -18,846,000 -25,254,000 -25,365,000  4,178,000 -28,572,000 7,207,000 15,870,000 -18,652,000 5,729,000 25,658,000 116,501,000 7,961,000 8,405,000 29,225,000 28,082,000 20,444,000 7,461,000 28,798,000 -55,859,000 -13,487,000 20,261,262 -7,672,000 -3,324,000 -14,268,000 23,412,705 8,998,000 22,110,000 -29,591,000 
          capital expenditures
        -34,242,000 -45,999,000 -43,828,000 -42,968,000 -31,768,000 -42,841,000 -30,263,000 -43,274,000 -31,972,000 -32,763,000 -26,645,000 -32,340,000 -26,504,000 -36,513,000 -27,648,000 -9,697,000 -12,224,000 -11,233,000 -20,041,000 -9,338,000 -11,872,000 -4,939,000 -6,426,000 -7,353,000 -7,463,000 -5,559,000 -5,104,000 -5,537,000 -5,554,000 -6,767,000 -17,116,000 -12,833,000 -8,658,000 -8,814,000 -12,400,000 -12,009,000 -10,488,000 -17,650,000 -12,446,000 -7,753,000 -6,425,000 -5,040,000 -7,753,000 -29,124,000 -2,588,000 -7,282,000 -8,977,000 -14,924,000 -9,118,000 -3,257,000 -2,258,000  -4,127,000 -8,025,000 -3,150,000 -3,224,000 -3,662,000 -3,839,000 -12,225,000 -5,102,000 -3,591,000 -5,348,000 -3,921,000 -6,897,000 -9,682,000 -7,347,000 -4,565,000 -7,920,000 -7,672,000 -5,472,000 -2,069,000 -2,564,000 -4,674,000 -6,473,000 -7,466,000 
          free cash flows
        51,890,000 63,818,000 35,525,000 96,131,000 95,169,000 179,729,000 197,761,000 77,308,000 85,735,000 154,731,000 169,940,000 2,844,000 -27,349,000 -33,571,000 -33,412,000 41,582,000 -3,219,000 27,442,000 19,554,000 7,107,000 -466,000 43,520,000 32,703,000 -5,390,000 -15,424,000 21,505,000 15,144,000 -390,000 -10,000,000 12,230,000 -1,654,000 2,929,000 -319,000 19,370,000 16,395,000 -7,567,000 -1,141,000 16,179,000 20,102,000 -17,491,000 58,000 19,702,000 15,032,000 -31,214,000 -807,000 16,239,000 -29,411,000 30,895,000 -27,964,000 -28,511,000 -27,623,000  51,000 -36,597,000 4,057,000 12,646,000 -22,314,000 1,890,000 13,433,000 111,399,000 4,370,000 3,057,000 25,304,000 21,185,000 10,762,000 114,000 24,233,000 -63,779,000 -21,159,000 20,261,262 -13,144,000 -5,393,000 -16,832,000 23,412,705 4,324,000 15,637,000 -37,057,000 
          investing activities:
                                                                                     
          purchases of property, plant and equipment
        -34,242,000 -45,999,000 -43,828,000 -42,968,000 -31,768,000 -42,841,000 -30,263,000 -43,274,000 -31,972,000 -32,763,000 -26,645,000 -32,340,000 -26,504,000 -36,513,000 -27,648,000 -9,697,000 -12,224,000 -11,233,000 -20,041,000 -9,338,000 -11,872,000 -4,939,000 -6,426,000 -7,353,000 -7,463,000 -5,559,000 -5,104,000 -5,537,000 -5,554,000 -6,767,000 -17,116,000 -12,833,000 -8,658,000 -8,814,000 -12,400,000 -12,009,000 -10,488,000 -17,650,000 -12,446,000 -7,753,000 -6,425,000 -5,040,000 -7,753,000 -29,124,000 -2,588,000 -7,282,000 -8,977,000 -14,924,000 -9,118,000 -3,257,000 -2,258,000  -4,127,000 -8,025,000 -3,150,000 -3,224,000 -3,662,000 -3,839,000 -12,225,000 -5,102,000 -3,591,000 -5,348,000 -3,921,000 -6,897,000 -9,682,000 -7,347,000 -4,565,000 -7,920,000 -7,672,000  -5,472,000 -2,069,000 -2,564,000  -4,674,000 -6,473,000 -7,466,000 
          proceeds from sale of assets
        149,000 16,000 10,000       -308,000 192,000   1,000 90,000 6,000 22,000 50,000    141,000 923,000 3,748,000 40,000 4,000 190,000          6,000 1,000 10,000  11,000  68,000 10,000                       
          net cash from investing activities
        -34,093,000 -45,983,000 -43,818,000 -42,966,000 -31,768,000 -42,841,000 -30,263,000 -43,274,000 -31,972,000 -33,071,000 -26,453,000 -32,127,000 -26,504,000 -36,512,000 -27,648,000 -9,697,000 -12,134,000 -11,227,000 -20,041,000 -9,338,000 -11,850,000 -4,889,000 -6,360,000 -7,353,000 -7,463,000 -5,418,000 -5,104,000 -5,537,000 -4,631,000 -3,019,000 -17,076,000 -12,833,000 -8,654,000 -8,624,000 -12,348,000 -12,009,000 -10,488,000 -17,650,000 -12,446,000 -7,678,000 -6,457,000 -4,001,000 -7,753,000 -29,124,000 -2,588,000 -7,282,000 -8,971,000 -14,923,000 -9,108,000 -3,268,000 -2,247,000  -4,059,000 -8,025,000 -3,140,000 -3,219,000 383,000 -3,768,000 -12,179,000 -5,042,000 -3,490,000 -5,213,000 -3,890,000 -6,851,000 -9,619,000 -7,254,000 -4,508,000 -7,817,000 -7,594,000 -7,002,238 -5,451,000 -2,172,000 -2,265,000 -5,266,280 -2,483,000 -6,099,000 -7,466,000 
          financing activities:
                                                                                     
          purchase of treasury stock
         -85,147,000 -121,235,000 -125,521,000 -128,252,000 -22,377,000 -93,392,000 -73,473,000 -58,383,000 -10,564,000    -82,000 -20,580,000                                        -1,891,000 -2,063,000               
          proceeds from issuance of common stock
        1,729,000 517,000 1,000 103,000 317,000 1,000 51,000 155,000 669,000 259,000 155,000 544,000   137,000 431,000 755,000 125,000 306,000 764,000 781,000 181,000 222,000 281,000 970,000 51,000 114,000 1,173,000 103,000 291,000 161,000                       32,000 100,000 24,000 40,000 71,000 511,000 146,000 648,000    19,000    2,117,000 
          dividends paid
        -315,000 -322,000 -338,000 -349,000 -367,000 -378,000 -378,000 -389,000 -403,000 -398,000 -412,000 -412,000 -411,000 -410,000 -412,000 -410,000 -418,000 -419,000 -418,000 -418,000 -418,000 -417,000 -417,000 -417,000 -417,000 -415,000 -416,000 -415,000 -415,000 -414,000 -414,000 -414,000 -414,000 -414,000 -414,000 -414,000 -415,000 -414,000 -415,000 -414,000 -414,000 -413,000 -414,000 -414,000 -413,000 -413,000 -413,000 -468,000 -469,000        -460,000 -460,000 -460,000                   
          net cash provided by/(used in) financing activities
        1,414,000                                                                             
          net increase in cash and cash equivalents
        53,453,000 -21,118,000 -86,037,000 -29,634,000 -33,133,000 156,975,000 104,042,000 3,446,000 27,104,000 144,130,000 136,988,000   -33,980,000 -33,280,000   27,029,000 19,136,000   43,908,000    21,995,000 15,509,000   15,826,000 -1,208,000 2,574,000 -591,000 20,335,000 13,214,000 -7,666,000 -1,395,000 15,820,000 19,750,000 -17,728,000 44,000 20,633,000 14,911,000 -31,510,000 -1,139,000 15,895,000 -29,739,000 -36,196,000 -28,375,000 -28,431,000 -28,019,000  -94,000 -39,853,000 -96,413,000 13,176,000 -18,714,000 1,603,000 13,038,000 109,150,000 3,875,000 2,897,000 22,849,000               
          cash and cash equivalents at beginning of period
        560,635,000 730,557,000 438,990,000 183,123,000 230,965,000 178,405,000 123,362,000  95,753,000  79,152,000  54,664,000  36,778,000  33,883,000  112,298,000 103,252,000  226,769,000  217,666,000  78,895,000               
          cash and cash equivalents at end of period
        614,088,000 -21,118,000 -86,037,000 -29,634,000 697,424,000 156,975,000 104,042,000 3,446,000 466,094,000 144,130,000 136,988,000 2,904,000 154,968,000 -33,980,000 -33,280,000 43,545,000 206,838,000 27,029,000 19,136,000 6,826,000 177,974,000 43,908,000 32,477,000 -5,807,000 107,827,000  15,509,000 -624,000 86,482,000  -1,208,000 2,574,000 78,561,000  13,214,000 -7,666,000 53,269,000  19,750,000 -17,728,000 36,822,000  14,911,000 -31,510,000 32,744,000  -29,739,000 -36,196,000 83,923,000 -28,431,000 75,233,000  -94,000 -39,853,000 130,356,000  -18,714,000 1,603,000 230,704,000  3,875,000 2,897,000 101,744,000               
          operating activities
                                                                                     
          investing activities
                                                                                     
          financing activities
                                                                                     
          deferred financing fees
                 -550,000             -1,000 -47,000                       -50,000                      
          net cash from financing activities
         -84,952,000 -121,572,000 -125,767,000 -128,302,000 -22,754,000 -93,719,000 -73,862,000 -58,631,000 -10,293,000 -33,144,000 -153,000 -806,000 -410,000 132,000 1,963,000 -20,998,000 -419,000 -418,000 -281,000 13,000 338,000 -292,000 -417,000 -111,000 349,000 365,000 -234,000 -194,000 -152,000 406,000 -355,000 -276,000 775,000 -3,233,000 -99,000 -254,000 -359,000 -352,000 -312,000 18,000 -108,000 -121,000 -296,000 -332,000 -344,000 -334,000 -67,092,000 -421,000 91,000 -407,000  -213,000 -3,256,000 -100,480,000 525,000 -445,000 -358,000 -441,000 -2,309,000 -596,000   -1,579,000 -376,000 -351,000 45,000 64,373,000 20,522,000 -12,658,885 14,087,000 4,265,000 16,182,000 -19,702,960 -3,448,000 -15,251,000 37,035,000 
          benefit from bad debt
          45,000                                                                           
          net decrease in cash and cash equivalents
                    -28,155,000    -24,127,000    -431,000   -5,807,000 -15,535,000    -9,271,000                                                 
          borrowings from revolver
                                                                                     
          repayments to revolver
                                                                                     
          excess tax benefits of options exercised
                                     -28,000 -8,000 -24,000 -16,000   -237,000 8,000 4,000 102,000 -228,000 23,000 19,000 11,000 -21,000 3,000 1,000 5,000    31,000   -406,000 2,000 39,000 2,000 -14,000 -101,000 17,000 -51,000             
          other assets and liabilities
                                        537,000 -2,359,000 80,000 -1,264,000 1,128,000 1,036,000 -113,000 -1,186,000 602,000 89,000 757,000 -2,040,000 3,862,000 9,974,000 -14,464,000 2,076,000 -1,696,000 349,000 -1,122,000  -1,003,000 8,110,000 -6,990,000  -17,450,000 -790,000 144,000    7,302,000  5,472,000 5,361,000 -5,907,000 -3,187,000 6,628,000  -1,463,000 4,154,000 -6,802,000  -5,165,000 655,000 -2,997,000 
          income taxes payable
                                                                                     
          cash and cash equivalents at beginning of year
                                                                                     
          cash and cash equivalents at end of year
                                                                                     
          stock-based compensation attributable to stock options
                                    384,000                                                 
          stock-based compensation
                                     538,000 208,000 211,000 639,000 302,000 -16,000 296,000 220,000                                         
          proceeds from issuances of common stock
                                              55,000 98,000 330,000  270,000 99,000 70,000  76,000 13,000 43,000 556,000 57,000  245,000 101,000 34,000  13,000 63,000 17,000                   
          benefit from bad debts
                                                                           45,000 45,000 45,000 195,000 45,000 45,000 45,000 45,000 30,000 180,000 
          long-term debt prepayment fee
                                                                                    
          repayment of notes payable
                                                            -2,919,000 -100,000,000                       
          dividend paid
                                                         -465,000 -464,000  -464,000 -463,000 -464,000     -464,000 -462,000 -463,000 -464,000 -468,000 -467,000 -466,000 -466,000           
          note:
                                                                                     
          prepaid expenses and other
                                                                                     
          current income taxes payable
                                                                     -11,125,000 18,068,000               
          termination of interest rate swap
                                                                                     
          deferred income tax benefit
                                                                                     
          inventory
                                                                1,829,000 6,446,000 -1,958,000    5,597,000  28,438,000 -779,000 -12,998,000 -61,021,000 -5,204,000  -473,000 -1,708,000 -8,902,000  14,838,000 14,033,000 -21,273,000 
          accounts payable and accrued liabilities
                                                                5,426,000 462,000 693,000    2,429,000  1,177,000 4,594,000 5,765,000 23,866,000 -3,860,000  8,677,000 8,200,000 -6,479,000  7,362,000 -15,338,000 11,420,000 
          proceeds from sale of equipment
                                                                4,045,000 71,000 46,000  101,000 135,000 31,000  62,000 93,000 52,000 103,000 78,000  6,000 -103,000 299,000  2,229,000   
          deferred income tax provision
                                                                 -1,522,000 1,510,000    -2,833,000    2,304,000           
          proceeds from issuance of private placement debt
                                                                                     
          repayments of long-term note payable
                                                                                     
          adjustments to reconcile net income to cash from operating activities:
                                                                                     
          deferred income tax liability
                                                                                     
          current taxes receivable
                                                                                     
          excess tax benefit of options exercised
                                                                    -1,000    51,000             
          net cash provided (used) by financing activities
                                                                      -2,486,000               
          proceeds from (repayments of) long-term note payable
                                                                                     
          current income taxes receivable/payable
                                                                        -20,511,000      5,865,000 1,254,000 -1,057,000  2,853,000 -8,661,000 3,894,000 
          borrowings (repayments) under notes payable
                                                                           64,150,000 19,200,000  14,045,000 4,255,000 16,163,000  -3,500,000 -15,843,000 34,918,000 
          net increase in cash
                                                                        10,449,000 -144,000 24,335,000 697,000 -559,000  964,000 -1,231,000 -351,000  3,067,000 760,000 -22,000 
          cash at beginning of period
                                                                        24,603,000 2,622,000  2,640,000  391,000 
          cash at end of period
                                                                        10,449,000 -144,000 48,938,000 697,000 2,063,000  964,000 -1,231,000 2,289,000  3,067,000 760,000 369,000 
          raw materials
                                                                        2,471,000 -13,492,000 33,170,000           
          work-in-process
                                                                        -6,764,000 3,121,000 22,258,000           
          finished goods
                                                                        -28,048,000 35,692,000 121,374,000           
          adjust to lifo cost
                                                                        3,903,000 -24,542,000 -59,857,000           
          lower of cost or market adjustment
                                                                                     
          current income taxes receivable
                                                                          18,427,000           
          borrowings under notes payable
                                                                                     
          change in long-term investments
                                                                                     
          tax benefit of options exercised
                                                                           77,000 674,000         
          balance outstanding at december 31, 2005
                                                                           639,825,000         
          granted
                                                                                     
          exercised
                                                                           7,750,000 79,049,000         
          forfeited/cancelled
                                                                           1,500,000         
          balance outstanding at june 30, 2006
                                                                                     
          options exercisable at june 30, 2006
                                                                                     
          current and deferred income taxes
                                                                            -11,644,000         
          balance outstanding at march 31, 2006
                                                                            559,276,000         
          options exercisable at march 31, 2006
                                                                            481,806,000         
          depreciation
                                                                                     
          tax benefit of option exercise
                                                                                     
          (gain) or loss on disposal of assets
                                                                                     
          trade accounts payable
                                                                                     
          accrued liabilities
                                                                                     
          purchases of property, plant, and equipment
                                                                                     
          increase in long term investments
                                                                                     
          increase in deposits
                                                                                     
          non-cash activities
                                                                                     
          unrealized gain on hedging activities
                                                                                     
          proceeds from exercise of stock options
                                                                              42,000    52,000   
          in thousands of dollars, except per share data
                                                                              2,005,000  2,004,000 
          net income, as reported
                                                                              8,779,000 1,389,000 1,037,000  -878,000 -5,996,000 13,265,000 
          add: stock-based employee compensation expense included in reported income, net of related tax effects
                                                                                     
          deduct: total stock-based employee compensation expense determined under fair value based methods for all awards net of related tax effects
                                                                              -13,000 -1,000 83,000    92,000 
          pro forma net income
                                                                              8,792,000 1,390,000 954,000  -878,000 -5,999,000 13,173,000 
          net income per share
                                                                                     
          basic, as reported
                                                                              380 60 40  -190 -400 870 
          basic, pro forma
                                                                              380 60 40  -200 -400 870 
          diluted, as reported
                                                                              380 60 40  -190 -390 850 
          diluted, pro forma
                                                                              370 60 40  -190 -380 840 
          add:
                                                                                     
          deduct:
                                                                                     
          loss on disposal of assets