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Quaker Chemical Corporation
(NYSE:KWR) 

KWR stock logo

Quaker Chemical Corporation develops, produces, and markets various formulated chemical specialty products for a range of heavy industrial and manufacturing applications. It operates through four segments: Americas; Europe, Middle East, and Africa; Asia/Pacific; and Global Specialty Businesses. The ...

Founded: 1918
Full Time Employees: 4,500
Sector: Basic Materials
Industry: Specialty Chemicals

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    Unit: USD2026-03-31 2025-12-31 2025-09-30 2025-06-30 2025-03-31 2024-12-31 2024-09-30 2024-06-30 2024-03-31 2023-12-31 2023-09-30 2023-06-30 2023-03-31 2022-12-31 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 2012-06-28 2012-03-31 2011-12-31 2011-09-30 2011-06-30 2011-03-31 2010-12-31 2010-09-30 2010-06-30 2010-03-31 2009-12-31 2009-09-30 2009-06-30 2009-03-31 2008-12-31 2008-09-30 2008-06-30 2008-03-31 2007-12-31 2007-09-30 2007-06-30 2007-03-31 2006-12-31 2006-09-30 2006-06-30 2006-03-31 2005-12-31 2005-09-30 2005-06-30 2005-03-31 2004-12-31 2004-09-30 2004-06-30 2004-03-31 2003-12-31 2003-09-30 2003-06-30 2003-03-31 
                                                                                        
      net sales
    480,479,000 468,478,000 493,842,000 483,400,000 442,914,000 444,086,000 462,274,000 463,567,000 469,759,000 467,109,000 490,612,000 495,444,000 500,148,000  378,561,000 391,294,000 325,130,000 205,869,000 211,210,000 211,481,000 222,022,000 221,962,000 212,055,000 211,072,000 212,918,000 201,183,000 194,909,000 191,245,000 190,428,000 186,915,000 178,077,000 183,275,000 189,224,000 183,726,000 181,330,000 194,033,000 198,867,000 191,286,000 181,674,000 184,297,000 184,059,000 184,846,000 176,193,000 172,868,000 180,923,000 176,797,000 176,797,000 177,638,000 173,261,000 182,313,000 167,792,000 159,865,000 142,083,000 137,669,000 135,991,000 128,320,000 131,726,000 118,922,000 102,335,000 98,507,000 116,229,000 159,506,000 158,188,000 147,718,000 142,393,000 140,715,000 137,598,000 124,891,000 115,527,000 116,425,000 118,683,000 109,816,000 107,079,000 105,751,000 107,042,000 104,161,000 104,214,000 99,667,000 98,683,000 98,131,000 -246,162,808 89,713,000 83,453,000 73,337,000 
      yoy
    8.48% 5.49% 6.83% 4.28% -5.71% -4.93% -5.78% -6.43% -6.08%  29.60% 26.62% 53.83%  79.23% 85.03% 46.44% -7.25% -0.40% 0.19% 4.28% 10.33% 8.80% 10.37% 11.81% 7.63% 9.45% 4.35% 0.64% 1.74% -1.79% -5.54% -4.85% -3.95% -0.19% 5.28% 8.05% 3.48% 3.11% 6.61% 1.73% 4.55% -0.34% -2.69% 4.42% -3.03% 5.37% 11.12% 21.94% 32.43% 23.38% 24.58% 7.86% 15.76% 32.89% 30.26% 13.33% -25.44% -35.31% -33.31% -18.37% 13.35% 14.96% 18.28% 23.26% 20.86% 15.94% 13.73% 7.89% 10.09% 10.88% 5.43% 2.75% 6.10% 8.47% 6.14% -142.34% 11.10% 18.25% 33.81%     
      qoq
    2.56% -5.14% 2.16% 9.14% -0.26% -3.93% -0.28% -1.32% 0.57% -4.79% -0.98% -0.94%   -3.25% 20.35% 57.93% -2.53% -0.13% -4.75% 0.03% 4.67% 0.47% -0.87% 5.83% 3.22% 1.92% 0.43% 1.88% 4.96% -2.84% -3.14% 2.99% 1.32% -6.55% -2.43% 3.96% 5.29% -1.42% 0.13% -0.43% 4.91% 1.92% -4.45% 2.33% 0.00% -0.47% 2.53% -4.97% 8.65% 4.96% 12.52% 3.21% 1.23% 5.98% -2.59% 10.77% 16.21% 3.89% -15.25% -27.13% 0.83% 7.09% 3.74% 1.19% 2.27% 10.17% 8.11% -0.77% -1.90% 8.07% 2.56% 1.26% -1.21% 2.77% -0.05% 4.56% 1.00% 0.56% -139.86% -374.39% 7.50% 13.79%  
      cost of goods sold
    303,744,000 302,954,000 312,977,000 311,677,000 281,654,000 287,886,000 289,725,000 287,849,000 288,196,000 295,953,000 307,265,000 317,753,000 326,698,000  244,710,000 255,162,000 220,073,000 130,708,000 135,443,000 104,640,500 140,929,000 141,025,000 136,608,000 97,878,000 138,142,000 129,348,000 124,022,000 86,382,750 119,649,000 115,680,000 110,202,000 86,501,500 117,895,000 113,109,000 115,002,000 124,457,000 128,567,000 123,070,000 116,560,000 119,134,000 118,069,000 117,532,000 113,585,000 113,714,000 121,797,000 116,161,000 116,161,000 117,843,000 116,597,000 122,827,000 114,026,000 107,131,000 94,193,000 88,641,000 87,460,000 80,980,000 84,111,000 74,450,000 66,298,000 69,793,000 88,114,000 112,981,000 113,402,000 104,083,000 98,783,000 97,547,000 94,986,000 86,345,000 78,251,000 79,650,000 82,618,000 77,331,000 74,778,000 71,874,000 74,333,000 73,234,000 70,027,000 67,976,000 66,139,000 65,676,000 -158,186,182 58,928,000 54,506,000 44,971,000 
      gross profit
    176,735,000 165,524,000 180,865,000 171,723,000 161,260,000 156,200,000 172,549,000 175,718,000 181,563,000 171,156,000 183,347,000 177,691,000 173,450,000  133,851,000 136,132,000 105,057,000 75,161,000 75,767,000 59,369,250 81,093,000 80,937,000 75,447,000 54,374,500 74,776,000 71,835,000 70,887,000 52,472,250 70,779,000 71,235,000 67,875,000 52,068,500 71,329,000 70,617,000 66,328,000 50,907,500 70,300,000 68,216,000 65,114,000 48,978,000 65,990,000 67,314,000 62,608,000 44,889,250 59,126,000 60,636,000 60,636,000 59,795,000 41,496,500 59,486,000 53,766,000 52,734,000 36,224,750 49,028,000                               
      yoy
    9.60% 5.97% 4.82% -2.27% -11.18% -8.74% -5.89% -1.11% 4.68%  36.98% 30.53% 65.10%  76.66% 129.30% 29.55% -7.14% 0.42% 9.19% 8.45% 12.67% 6.43% 3.63% 5.65% 0.84% 4.44% 0.78% -0.77% 0.88% 2.33% 2.28% 1.46% 3.52% 1.86% 3.94% 6.53% 1.34% 4.00% 9.11% 11.61% 11.01% 3.25% -24.93% 42.48% 1.93% 12.78% 13.39% 14.55% 21.33%                                   
      qoq
    6.77% -8.48% 5.32% 6.49% 3.24% -9.47% -1.80% -3.22% 6.08% -6.65% 3.18% 2.45%   -1.68% 29.58% 39.78% -0.80% 27.62% -26.79% 0.19% 7.28% 38.75% -27.28% 4.09% 1.34% 35.09% -25.86% -0.64% 4.95% 30.36% -27.00% 1.01% 6.47% 30.29% -27.59% 3.06% 4.76% 32.95% -25.78% -1.97% 7.52% 39.47% -24.08% -2.49% 0.00% 1.41% 44.10% -30.24% 10.64% 1.96% 45.57% -26.11%                                
      gross margin %
    36.78% 35.33% 36.62% 35.52% 36.41% 35.17% 37.33% 37.91% 38.65% 36.64% 37.37% 35.87% 34.68% NaN% 35.36% 34.79% 32.31% 36.51% 35.87% 28.07% 36.52% 36.46% 35.58% 25.76% 35.12% 35.71% 36.37% 27.44% 37.17% 38.11% 38.12% 28.41% 37.70% 38.44% 36.58% 26.24% 35.35% 35.66% 35.84% 26.58% 35.85% 36.42% 35.53% 25.97% 32.68% 34.30% 34.30% 33.66% 23.95% 32.63% 32.04% 32.99% 25.50% 35.61% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 
      selling, general and administrative expenses
    135,765,000 130,291,000 126,479,000 126,600,000 119,046,000 125,444,000 118,221,000 116,949,000 124,180,000 121,349,000 122,810,000 119,853,000 119,549,000  98,701,000 101,535,000 80,812,000 50,026,000 51,455,000 39,340,000 53,270,000 54,083,000 50,007,000 37,185,000 51,092,000 49,594,000 48,054,000 36,805,750 49,440,000 49,142,000 48,641,000 37,559,250 52,601,000 49,172,000 48,464,000 53,091,000 49,747,000 47,271,000 45,741,000 49,931,000 47,183,000 47,521,000 45,197,000 45,478,000 43,263,000 43,653,000 43,653,000 43,093,000 29,860,250 41,982,000 38,825,000 38,634,000 25,871,500 34,699,000 35,118,000 33,669,000 22,598,250 34,646,000 29,050,000 26,697,000 27,483,750 38,278,000 37,153,000 34,504,000 25,982,500 36,602,000 35,409,000 31,919,000 22,159,000 31,485,000 29,789,000 27,362,000 21,818,500 29,937,000 29,120,000 28,217,000 20,764,000 29,249,000 27,209,000 26,598,000 17,591,750 24,459,000 23,223,000 22,685,000 
      restructuring and related charges
    7,381,000 4,002,000 7,745,000 8,793,000 14,590,000 1,743,000 2,610,000 320,000 1,857,000    3,972,000  1,716,000                                                                      
      operating income
    33,589,000 31,231,000 46,641,000 -52,510,000 27,624,000 29,013,000 51,718,000 58,449,000 55,526,000 48,253,000 59,518,000 56,795,000 49,929,000  -12,444,000 20,276,000 -14,502,000 20,531,000 19,829,000 20,068,000 24,919,000 22,563,000 20,231,000 17,074,000 14,009,000 17,903,000 13,758,000 20,385,000 21,339,000 22,093,000 19,234,000 13,223,000 18,728,000 21,445,000 17,864,000 16,485,000 20,553,000 20,945,000 19,373,000 15,232,000 18,807,000 19,793,000 17,411,000 13,676,000 15,863,000 16,983,000 16,983,000 16,702,000 11,367,000 17,504,000 14,941,000 14,100,000 11,616,000 9,431,000 13,413,000 13,671,000 11,990,000 8,576,000 5,794,000 -272,000 -1,563,000 6,622,000 5,753,000 9,131,000 8,111,000 3,266,000 7,203,000 6,627,000 4,943,000 5,290,000 6,276,000 5,123,000 -5,853,000 3,940,000 3,589,000 1,478,000 3,257,000 2,442,000 5,335,000 5,857,000 -17,706,885 6,326,000 5,724,000 5,681,000 
      yoy
    21.59% 7.64% -9.82% -189.84% -50.25% -39.87% -13.11% 2.91% 11.21%  -578.29% 180.11% -444.29%  -162.76% 1.04% -158.20% -9.01% -1.99% 17.54% 77.88% 26.03% 47.05% -16.24% -34.35% -18.97% -28.47% 54.16% 13.94% 3.02% 7.67% -19.79% -8.88% 2.39% -7.79% 8.23% 9.28% 5.82% 11.27% 11.38% 18.56% 16.55% 2.52% -18.12% 39.55% -2.98% 13.67% 18.45% -2.14% 85.60% 11.39% 3.14% -3.12% 9.97% 131.50% -5126.10% -867.11% 29.51% 0.71% -102.98% -119.27% 102.76% -20.13% 37.78% 64.09% -38.26% 14.77% 29.36% -184.45% 34.26% 74.87% 246.62% -279.71% 61.34% -32.73% -74.77% -118.39% -61.40% -6.80% 3.10%     
      qoq
    7.55% -33.04% -188.82% -290.09% -4.79% -43.90% -11.52% 5.26% 15.07% -18.93% 4.79% 13.75%   -161.37% -239.82% -170.63% 3.54% -1.19% -19.47% 10.44% 11.53% 18.49% 21.88% -21.75% 30.13% -32.51% -4.47% -3.41% 14.86% 45.46% -29.39% -12.67% 20.05% 8.37% -19.79% -1.87% 8.11% 27.19% -19.01% -4.98% 13.68% 27.31% -13.79% -6.59% 0.00% 1.68% 46.93% -35.06% 17.15% 5.96% 21.38% 23.17% -29.69% -1.89% 14.02% 39.81% 48.02% -2230.15% -82.60% -123.60% 15.11% -36.99% 12.58% 148.35% -54.66% 8.69% 34.07% -6.56% -15.71% 22.51% -187.53% -248.55% 9.78% 142.83% -54.62% 33.37% -54.23% -8.91% -133.08% -379.91% 10.52% 0.76%  
      operating margin %
    6.99% 6.67% 9.44% -10.86% 6.24% 6.53% 11.19% 12.61% 11.82% 10.33% 12.13% 11.46% 9.98% NaN% -3.29% 5.18% -4.46% 9.97% 9.39% 9.49% 11.22% 10.17% 9.54% 8.09% 6.58% 8.90% 7.06% 10.66% 11.21% 11.82% 10.80% 7.21% 9.90% 11.67% 9.85% 8.50% 10.34% 10.95% 10.66% 8.26% 10.22% 10.71% 9.88% 7.91% 8.77% 9.61% 9.61% 9.40% 6.56% 9.60% 8.90% 8.82% 8.18% 6.85% 9.86% 10.65% 9.10% 7.21% 5.66% -0.28% -1.34% 4.15% 3.64% 6.18% 5.70% 2.32% 5.23% 5.31% 4.28% 4.54% 5.29% 4.67% -5.47% 3.73% 3.35% 1.42% 3.13% 2.45% 5.41% 5.97% 7.19% 7.05% 6.86% 7.75% 
      other expense
    -23,000           -3,606,000 -2,239,000  -21,175,000    -635,000    -369,000   -1,571,000         -194,000                                                  
      interest expense
    -9,879,000 -10,783,000 -10,941,000 -12,779,000 -9,545,000 -9,077,000 -10,347,000 -10,754,000 -10,824,000 -11,955,000 -12,781,000 -12,721,000 -13,242,000  -8,461,000 -9,365,000 -6,102,000 -1,283,000 -1,214,000 -1,354,000 -1,510,000 -1,602,000 -1,692,000 -1,663,000 -793,000 -780,000 -656,000 -663,000 -758,000 -727,000 -741,000 -694,000 -697,000 -607,000 -587,000 -624,000 -641,000 -581,000 -525,000 -699,000 -717,000 -762,000 -744,000 -924,000 -1,034,000 -1,151,000 -1,151,000 -1,174,000 -1,082,000 -1,166,000 -1,200,000 -1,218,000 -1,183,000 -1,345,000 -1,386,000 -1,311,000 -1,397,000 -1,356,000 -1,538,000 -1,242,000 -1,423,000 -1,330,000 -1,337,000 -1,419,000 -1,497,000 -1,714,000 -1,660,000 -1,554,000 -1,480,000 -1,432,000 -1,378,000 -1,230,000 -1,039,000 -956,000 -928,000 -758,000 -711,000 -635,000 -547,000 -470,000 1,143,424 -407,000 -387,000 -350,000 
      income before taxes and equity in net income of associated companies
    23,687,000 20,171,000 35,430,000 -65,942,000 17,370,000 19,005,000 42,154,000 48,117,000 45,782,000 34,184,000 44,024,000 40,468,000 34,448,000  -42,080,000    18,418,000    18,659,000    13,520,000    19,547,000    17,403,000 16,621,000 21,468,000 21,376,000 18,828,000 16,411,000 17,672,000 21,561,000 17,182,000 15,821,000 15,300,000 15,835,000 15,835,000 15,992,000 11,541,000 19,340,000 14,803,000 13,693,000 11,334,000 8,079,000 13,493,000  11,152,000 7,615,000                           
      taxes on income before equity in net income of associated companies
    7,145,000 2,327,000 9,266,000 5,472,000 7,542,000 8,847,000 12,167,000 15,778,000 12,508,000 18,629,000 13,593,000 13,830,000 9,533,000  -13,070,000    4,929,000    5,556,000    6,865,000    6,305,000    5,359,000 4,731,000 5,724,000 6,538,000 6,546,000 3,556,000 5,972,000 6,828,000 4,133,000 2,883,000 4,373,000 4,874,000 4,874,000 3,445,000 1,295,000 5,640,000 4,499,000 2,822,000 3,631,000 1,661,000 4,143,000                              
      income before equity in net income of associated companies
    16,542,000 17,844,000 26,164,000 -71,414,000 9,828,000 10,158,000 29,987,000 32,339,000 33,274,000 15,555,000 30,431,000 26,638,000 24,915,000  -29,010,000   15,041,000 13,489,000 7,743,000 19,077,000 18,125,000 13,103,000 -10,595,000 11,087,000 11,868,000 6,655,000 17,072,000 15,525,000 14,944,000 13,242,000 10,903,000 14,097,000 15,401,000 12,044,000 11,890,000 15,744,000 14,838,000 12,282,000 12,855,000 11,700,000 14,733,000 13,049,000 12,938,000 10,927,000 10,961,000 10,961,000 12,547,000 10,246,000 13,700,000 10,304,000 10,871,000 7,703,000 6,418,000 9,350,000  8,150,000 4,868,000                           
      equity in net income of associated companies
    3,200,000 2,915,000 4,322,000 4,851,000 3,089,000 4,031,000 2,385,000 2,571,000 1,984,000 4,673,000 3,279,000 2,755,000 4,626,000  666,000 2,258,000 1,787,000 608,000 411,000 140,000 694,000 1,245,000 -316,000 1,236,000 617,000 473,000 959,000 867,000 826,000 461,000 102,000 949,000 738,000 11,000 -1,437,000 1,037,000 375,000 1,104,000 1,027,000 1,825,000 1,605,000 1,942,000 1,142,000 2,255,000 257,000 209,000 209,000 146,000 64,000 105,000 251,000 359,000 -240,000 439,000 384,000  223,000 555,000 227 -142,000 387,510 191 187 112,000 782,443 166 266 125,000 317 218 125 113 617,586 208 153 53,000 291 264 186 149 774 215 169 86 
      net income
    19,742,000 20,759,000 30,486,000 -66,563,000 12,917,000 14,189,000 32,372,000 34,910,000 35,258,000 20,228,000 33,710,000 29,393,000 29,541,000  -28,344,000 15,316,000 -12,981,000 15,649,000 13,900,000 7,883,000 19,771,000 19,370,000 12,787,000 -9,359,000 11,704,000 12,341,000 7,614,000 17,939,000 16,351,000 15,405,000 13,344,000 11,852,000 14,835,000 15,412,000 10,607,000 12,927,000 16,119,000 15,942,000 13,309,000 14,680,000 13,305,000 16,675,000 14,191,000 15,193,000 11,184,000 11,170,000 11,170,000 12,693,000 10,310,000 13,805,000 10,555,000 11,230,000 7,463,000 6,857,000 9,734,000 10,037,000 8,373,000 5,423,000 3,492 202,000 11,118,146 4,440 4,321 5,093,000 15,460,152 3,160 4,151 3,537,000 2,994 3,139 2,992 2,542 1,680,867 2,212 1,795 3,126,000 1,664 1,154 2,847 3,309 4,115 4,136 3,475 3,107 
      yoy
    52.84% 46.30% -5.83% -290.67% -63.36% -29.85% -3.97% 18.77% 19.35%  -218.93% 91.91% -327.57%  -303.91% 94.29% -165.66% -19.21% 8.70% -184.23% 68.93% 56.96% 67.94% -152.17% -28.42% -19.89% -42.94% 51.36% 10.22% -0.05% 25.80% -8.32% -7.97% -3.32% -20.30% -11.94% 21.15% -4.40% -6.22% -3.38% 18.96% 49.28% 27.05% 19.70% 8.48% -19.09% 5.83% 13.03% 38.15% 101.33% 8.43% 11.89% -10.87% 26.44% 278651.43% 4868.81% -24.69% 122039.64% -19.19% -96.03% -28.09% 40.51% 4.10% 43.99% 516271.14% 0.67% 38.74% 139042.41% -99.82% 41.91% 66.69% -99.92% 100913.64% 91.68% -36.95% 94369.63% -59.56% -72.10% -18.07% 6.50%     
      qoq
    -4.90% -31.91% -145.80% -615.31% -8.96% -56.17% -7.27% -0.99% 74.30% -39.99% 14.69% -0.50%   -285.06% -217.99% -182.95% 12.58% 76.33% -60.13% 2.07% 51.48% -236.63% -179.96% -5.16% 62.08% -57.56% 9.71% 6.14% 15.45% 12.59% -20.11% -3.74% 45.30% -17.95% -19.80% 1.11% 19.78% -9.34% 10.33% -20.21% 17.50% -6.60% 35.85% 0.13% 0.00% -12.00% 23.11% -25.32% 30.79% -6.01% 50.48% 8.84% -29.56% -3.02% 19.87% 54.40% 155197.82% -98.27% -98.18% 250308.69% 2.75% -99.92% -67.06% 489145.32% -23.87% -99.88% 118036.27% -4.62% 4.91% 17.70% -99.85% 75888.56% 23.23% -99.94% 187760.58% 44.19% -59.47% -13.96% -19.59% -0.51% 19.02% 11.84%  
      net income margin %
    4.11% 4.43% 6.17% -13.77% 2.92% 3.20% 7.00% 7.53% 7.51% 4.33% 6.87% 5.93% 5.91% NaN% -7.49% 3.91% -3.99% 7.60% 6.58% 3.73% 8.90% 8.73% 6.03% -4.43% 5.50% 6.13% 3.91% 9.38% 8.59% 8.24% 7.49% 6.47% 7.84% 8.39% 5.85% 6.66% 8.11% 8.33% 7.33% 7.97% 7.23% 9.02% 8.05% 8.79% 6.18% 6.32% 6.32% 7.15% 5.95% 7.57% 6.29% 7.02% 5.25% 4.98% 7.16% 7.82% 6.36% 4.56% 0.00% 0.21% 9.57% 0.00% 0.00% 3.45% 10.86% 0.00% 0.00% 2.83% 0.00% 0.00% 0.00% 0.00% 1.57% 0.00% 0.00% 3.00% 0.00% 0.00% 0.00% 0.00% -0.00% 0.00% 0.00% 0.00% 
      less: net income attributable to noncontrolling interest
    73,000 58,000 17,000 17,000 -5,000 3,000 26,000 25,000 31,000 30,000 40,000 47,000 7,000  37,000 76,000 72,000 58,000 56,000 78,000 81,000 124,000 55,000 403,000 562,000 435,000 622,000 505,000 343,000 390,000 398,000 459,000 464,000 374,000 229,000 288,000 423,000 515,000 579,000 594,000 754,000 592,000 572,000 760,000 698,000 630,000 630,000 747,000 540,000 447,000 714,000 630,000 568,000 517,000 581,000 618,000 441,000 371,000 258 200,000                         
      net income attributable to quaker chemical corporation
    19,669,000 20,701,000 30,469,000 -66,580,000 12,922,000 14,186,000 32,346,000 34,885,000 35,227,000 20,198,000 33,670,000 29,346,000 29,534,000  -28,381,000 15,240,000 -13,053,000 15,591,000 13,844,000 7,805,000 19,690,000 19,246,000 12,732,000 -9,762,000 11,142,000 11,906,000 6,992,000 17,434,000 16,008,000 15,015,000 12,946,000 11,393,000 14,371,000 15,038,000 10,378,000 12,639,000 15,696,000 15,427,000 12,730,000 14,086,000 12,551,000 16,083,000 13,619,000 14,433,000 10,486,000 10,540,000 10,540,000 11,946,000 9,770,000 13,358,000 9,841,000 10,600,000 6,895,000 6,340,000 9,153,000 9,419,000 7,932,000 5,052,000 3,234 2,000                         
      per share data:
                                                                                        
      net income attributable to quaker chemical corporation common shareholders – basic
    1.13 1.18 1.75 -3.78 0.73 0.8 1.81 1.94 1.96 1.12 1.87 1.63 1.64      1.04    0.96    0.53    0.98    0.78    0.96    1.04     0.92    0.92 0.555 0.56 0.82 0.85                             
      net income attributable to quaker chemical corporation common shareholders – diluted
    1.13 1.18 1.75 -3.78 0.73 0.81 1.81 1.94 1.95 1.12 1.87 1.63 1.64      1.03    0.95    0.52    0.98    0.78    0.96    1.04     0.91    0.91 0.548 0.55 0.8 0.84                             
      dividends declared
    0.508 0.37 0.508 0.485 0.485 0.349 0.485 0.455 0.455 0.331 0.455 0.435 0.435                       0.213 0.3 0.3 0.25 0.186 0.25 0.25 0.245 0.183 0.245 0.245 0.245 0.24   0.24 0.235 0.175 0.235 0.235 0.23 0.173 0.23 0.46  0.173 0.23 0.23 0.23 0.161 0.215 0.215 0.215 0.161 0.215 0.215 0.215 0.161 0.215 0.215 0.215 0.161 0.215 0.215 0.215 0.158 0.21 0.21 0.21 
      impairment charges
       88,840,000                                                                                 
      other income
     -277,000 -270,000 -653,000 -709,000 -931,000 783,000 422,000 1,080,000 -2,114,000 -2,713,000     -97,250 203,000 43,000  -157,750 -523,000 261,000  -356,750 249,000  -105,000 319,000 514,000 271,000 706,000 28,000 185,000 -88,000  209,000 914,000 117,000 -473,000 1,557,000 -685,000 2,301,000 346,000 2,886,000 322,000 -134,000 -134,000 341,000 980,000 2,740,000 791,000 539,000 540,000 -320,000 1,123,000 763,000 382,000 217,000 356,000 1,454,000 -657,000 -96,000 1,687,000 161,000 960,000 382,000 909,000 327,000 205,000 539,000 387,000 128,000 251,000 353,000 648,000 4,868,000 629,000 422,000 208,000 559,000 -829,236 295,000 447,000 88,000 
      restructuring and related charges (credits)
             1,508,500 1,019,000 1,043,000                                                                         
      combination, integration and other acquisition-related expenses
                                                                                        
      indefinite-lived intangible asset impairment
                  38,000,000                                                                      
      combination and other acquisition-related expenses
                  7,878,000 5,947,250 14,702,000 4,604,000                                                                   
      earnings per common share data:
                                                                                        
      net income attributable to quaker chemical corporation common
                                                                                        
      shareholders – basic
                  -1,600                     0.828 1.18 1.17  0.803 0.95 1.22  0.635 0.8 0.81 0.81    0.8                                  
      shareholders – diluted
                  -1,600                     0.828 1.18 1.16  0.803 0.95 1.22  0.63 0.8 0.81 0.81    0.79                                  
      restructuring and related activities
                   6,011,250 24,045,000                                           2,289,000             9,088,000   1,232,000         
      income before taxes and equity in net income of
                                                                                        
      taxes on income before equity in net income of associated
                                                                                        
      companies
                   1,024,000 -5,633,000 4,800,000  15,964,750 23,407,000 21,793,000  10,959,750 14,227,000 16,092,000  15,843,750 21,646,000 22,182,000  14,291,500 18,638,000 21,125,000                                                   
      income before equity in net income of associated
                                                                                        
      interest income
                     550,000 438,000 536,000 521,000 571,000 489,000 709,000 762,000 540,000 523,000 593,000 551,000 545,000 348,000 507,000 422,000 375,000 320,000 551,000 642,000 895,000 453,000 321,000 267,000 229,000 169,000 183,000 149,000 137,000 137,000 123,000 276,000 262,000 271,000 272,000 361,000 313,000 343,000 184,000 177,000 178,000 220,000 153,000 219,000 286,000 358,000 237,000 668,000 344,000 159,000 204,000 464,000 214,000 126,000 265,000 224,000 286,000 188,000 324,000 425,000 333,000 198,000 155,000 -530,185 167,000 152,000 211,000 
      income before taxes and equity in net income of associated
                                                                                        
      combination-related expenses
                      4,483,000 3,101,000 2,904,000 4,291,000 5,209,000 5,772,000 9,675,000 4,338,000 9,075,000                                                          
      non-income tax contingency charge
                                                                                        
      ceo transition costs
                                                         1,317,000    1,250,000 1,193,000   1,625,000 1,880,000                      
      contingencies charge
                                                        895,250 3,581,000                               
      gross margin
                                                          48,531,000 47,340,000 27,305,750 44,472,000 36,037,000 28,714,000 33,736,500 46,525,000 44,786,000 43,635,000 31,081,500 43,168,000 42,612,000 38,546,000 26,331,250 36,775,000 36,065,000 32,485,000 24,378,250 33,877,000 32,709,000 30,927,000 24,172,500 31,691,000 32,544,000 32,455,000 22,024,500 30,785,000 28,947,000 28,366,000 
      income before taxes and equity in net loss of associated companies
                                                           13,307,000                             
      taxes (tax benefit) on income before equity in net loss of associated companies
                                                           3,181,000                             
      income before equity in net loss of associated companies
                                                           10,126,000                             
      equity in net loss of associated companies
                                                           -89,000                             
      taxes on income
                                                            3,002,000 2,747,000 1,567,000 -251,000 -871,000 967,000 2,116,000 2,765,000 3,592,000 -1,066,000 2,298,000 1,844,000 1,166,000 1,378,000 2,127,000 1,553,000 -899,000 1,178,000 1,136,000 1,921,000 1,134,000 807,000 1,636,000 1,922,000 -5,376,512 1,683,000 1,843,000 1,858,000 
      net income attributable to quaker chemical corporation common shareholders–basic
                                                            0.19 0.46                           
      net income attributable to quaker chemical corporation common shareholders–diluted
                                                            0.188 0.45                           
      income before taxes
                                                              4,832,000 93,000 5,013,250 5,482,000 6,461,000 8,110,000 3,623,250 2,278,000 6,611,000 5,604,000 3,577,000 4,611,000 5,411,000 4,286,000 3,258,000 3,623,000 3,497,000 5,912,000 3,464,250 2,562,000 5,194,000 6,101,000 4,486,750 6,381,000 5,936,000 5,630,000 
      net income attributable to quaker chemical corporation – basic
                                                              0.29                          
      net income attributable to quaker chemical corporation – diluted
                                                              0.29                          
      dividends declared – see note 17 – subsequent events
                                                                                        
      environmental charges
                                                                     3,300,000                   
      minority interest in net income of subsidiaries
                                                                -907,159 -266 -211 -364,000 -1,377,874 -350 -428 -348,000 -289 -312 -417 -304 -2,206,922 -441 -719 -918,000 -1,093 -865 -897 -1,019 -726 -777 -787 -751 
      net income – basic
                                                                0.335 0.42 0.42 0.5 0.273 0.32 0.42 0.36 0.223 0.32 0.31 0.26 0.185 0.23 0.19 0.32 0.19 0.12 0.3 0.35 0.288 0.44 0.37  
      net income – diluted
                                                                0.328 0.41 0.41 0.5 0.268 0.31 0.41 0.35 0.22 0.32 0.3 0.26 0.183 0.23 0.18 0.32 0.183 0.12 0.29 0.33 0.278 0.42 0.36  
      based on weighted-average number of shares outstanding:
                                                                                        
      basic
                                                                 10,573,497 10,285,121 10,085,859  10,016,801 9,983,535 9,907,683  9,792,187 9,769,682 9,723,432  9,693,851 9,676,463 9,643,681  9,621,746 9,604,142 9,570,664  9,410,675 9,323,895 9,270,775 
      diluted
                                                                 10,796,716 10,559,449 10,179,539  10,134,909 10,118,653 10,024,905  9,854,625 9,833,117 9,816,149  9,801,893 9,795,798 9,883,727  9,973,920 9,983,809 9,977,713  9,856,783 9,671,578 9,508,593 
      net income - basic
                                                                                       0.34 
      net income - diluted
                                                                                       0.33 
    Balance Sheets:
    Quarterly
    Annual
      Unit: USD2026-03-31 2025-12-31 2025-09-30 2025-06-30 2025-03-31 2024-12-31 2024-09-30 2024-06-30 2024-03-31 2023-12-31 2023-09-30 2023-06-30 2023-03-31 2022-12-31 2020-03-31 2019-12-31 2019-09-30 2019-06-30 2019-03-31 2018-12-31 2018-09-30 2018-06-30 2018-03-31 2017-12-31 2017-09-30 2017-06-30 2017-03-31 2016-12-31 2016-09-30 2016-06-30 2016-03-31 2015-12-31 2015-09-30 2015-06-30 2015-03-31 2014-12-31 2014-09-30 2014-06-30 2014-03-31 2013-12-31 2013-09-30 2013-06-30 2013-03-31 2012-12-31 2012-09-30 2012-06-30 2012-03-31 2011-12-31 2011-09-30 2011-06-30 2011-03-31 2010-12-31 2010-09-30 2010-06-30 2010-03-31 2009-12-31 2009-09-30 2009-06-30 2009-03-31 2008-12-31 2008-09-30 2008-06-30 2008-03-31 2007-12-31 2007-09-30 2007-06-30 2007-03-31 2006-12-31 2006-09-30 2006-06-30 2006-03-31 2005-12-31 2005-09-30 2005-06-30 2005-03-31 2004-12-31 2004-09-30 2004-06-30 2004-03-31 2003-12-31 2003-09-30 2003-06-30 2003-03-31 
                                                                                         
        assets
                                                                                         
        current assets
                                                                                         
        cash and cash equivalents
      169,728,000 179,829,000 172,038,000 201,918,000 186,223,000 188,880,000 212,074,000 188,568,000 195,750,000 194,527,000 198,358,000 189,405,000 189,872,000 180,963,000 316,437,000 123,524,000 128,161,000 86,355,000 71,960,000 104,147,000 99,810,000 90,220,000 92,581,000 89,879,000 109,088,000 98,821,000 90,593,000 88,818,000 99,024,000 96,245,000 94,374,000 81,053,000 96,155,000 65,784,000 64,338,000 64,731,000 64,221,000 60,232,000 60,450,000 68,492,000    32,547,000    16,909,000 20,579,000 23,541,000 23,564,000 25,766,000 27,149,000 27,606,000 24,820,000 25,051,000 25,369,000 24,605,000 17,977,000 20,892,000 24,066,000 22,170,000 20,527,000 20,195,000 24,224,000 14,517,000 10,787,000 16,062,000 15,785,000 12,111,000 9,605,000 16,121,000 13,109,000 17,107,000 18,098,000 29,078,000 29,948,000 24,470,000 22,894,000 21,915,000 17,981,000 15,098,000 12,044,000 
        accounts receivable
      441,167,000 417,157,000 436,216,000 437,411,000 418,659,000 400,126,000 422,732,000 423,906,000 440,018,000 444,950,000 446,459,000 454,230,000 482,746,000 472,888,000 357,902,000 375,982,000 370,725,000 210,347,000 208,003,000 202,139,000 214,056,000 213,548,000 218,058,000 208,358,000 218,243,000 201,529,000 201,929,000 195,225,000 193,805,000 184,306,000 188,218,000 188,297,000 194,852,000 187,415,000 180,402,000 189,484,000 188,982,000 186,323,000 178,945,000 165,629,000    154,197,000    150,676,000 147,414,000 137,402,000 130,948,000 116,266,000 117,238,000 114,595,000 110,587,000 108,793,000 100,926,000 86,675,000 89,575,000 98,702,000 119,538,000 121,599,000 120,273,000 118,135,000 118,217,000 124,652,000 118,834,000 107,340,000 106,657,000 105,341,000 101,524,000 93,943,000 93,030,000 86,738,000 89,728,000 87,527,000 85,098,000 81,791,000 82,063,000 78,121,000 73,953,000 67,964,000 54,911,000 
        inventories
       265,776,000    227,472,000    233,857,000    284,848,000  174,950,000    94,090,000    87,221,000    77,082,000    75,099,000    77,708,000    71,557,000    72,471,000    74,758,000    60,841,000    50,040,000    57,419,000    60,738,000    51,984,000    45,818,000    41,298,000    32,211,000    
        raw materials and supplies
      128,739,000  124,225,000 123,854,000 116,953,000  118,073,000 116,026,000 116,411,000  129,204,000 137,914,000 148,119,000                        40,348,000 39,586,000 39,573,000          44,718,000 43,580,000 37,559,000  30,437,000 28,409,000 27,371,000  22,392,000 20,425,000 21,489,000  30,043,000 27,893,000 25,880,000  23,392,000 23,892,000 23,800,000  20,064,000 19,664,000 21,119,000  18,876,000 18,083,000 17,380,000  17,437,000 18,781,000 15,707,000  14,619,000 13,352,000 12,996,000 
        work-in-process and finished goods
      153,769,000  144,383,000 140,493,000 129,169,000  126,915,000 123,115,000 124,055,000  121,566,000 137,026,000 145,375,000                        40,186,000 39,686,000 38,441,000          34,150,000 33,119,000 32,671,000  28,370,000 26,435,000 27,087,000  24,771,000 22,980,000 24,796,000  37,534,000 38,667,000 38,679,000  34,516,000 33,487,000 31,620,000  31,469,000 29,270,000 29,066,000  24,530,000 22,975,000 21,654,000  20,111,000 19,069,000 18,262,000  15,742,000 14,739,000 12,673,000 
        prepaid expenses and other current assets
      59,196,000 58,428,000 69,123,000 70,431,000 61,417,000 59,939,000 62,059,000 67,485,000 56,795,000 54,555,000 70,724,000 65,426,000 63,189,000 55,438,000 43,021,000 41,516,000 51,290,000 20,992,000 18,403,000 18,134,000 17,446,000 22,225,000 22,365,000 21,128,000 24,272,000 21,466,000 15,237,000 15,343,000 21,624,000 23,905,000 20,537,000 13,582,000 20,477,000 20,614,000 18,282,000 11,228,000 19,818,000 20,133,000 22,735,000 15,343,000    12,194,000    10,868,000 15,744,000 16,032,000 13,899,000 7,985,000 13,831,000 13,149,000 12,929,000 7,409,000 11,229,000 10,759,000 14,987,000 10,584,000 14,562,000 14,516,000 16,057,000 10,391,000 15,229,000 13,204,000 12,213,000 6,476,000 13,324,000 12,775,000 12,541,000 5,672,000 14,846,000 12,955,000 12,608,000 8,911,000 15,332,000 14,442,000 14,065,000 6,727,000 12,214,000 12,298,000 14,529,000 
        total current assets
      952,599,000 921,190,000 945,985,000 974,107,000 912,421,000 876,417,000 941,853,000 919,100,000 933,029,000 927,889,000 966,311,000 984,001,000 1,029,301,000 994,137,000                      351,518,000 353,555,000 345,960,000 340,144,000 328,847,000    277,810,000    259,549,000 262,605,000 253,674,000 238,641,000 215,482,000 217,025,000 210,194,000 203,201,000 198,898,000 188,492,000 171,828,000 176,279,000 200,826,000 237,863,000 234,170,000 221,416,000 213,501,000 215,578,000 209,752,000 197,254,000 186,241,000 187,299,000 179,161,000 173,855,000 165,993,000 164,391,000 157,858,000 159,468,000 171,187,000 167,926,000 158,553,000 152,991,000 143,524,000 134,509,000 123,451,000 107,153,000 
        property, plant and equipment, at cost
      611,149,000  579,429,000 564,462,000 496,185,000  474,368,000 447,808,000 445,118,000  431,565,000 441,963,000 439,367,000  390,353,000  380,480,000 258,054,000 254,400,000  254,881,000 255,342,000 262,623,000  253,548,000 248,468,000 239,827,000  236,874,000 234,920,000 236,811,000  234,587,000 228,741,000 224,361,000  233,371,000 236,942,000 235,402,000          215,257,000 218,119,000 212,213,000  193,188,000 181,547,000 187,639,000  193,924,000 185,713,000 177,108,000  180,846,000 190,596,000 184,355,000  169,425,000 165,940,000 162,719,000  153,591,000 150,400,000 144,367,000  140,482,000 142,426,000 145,116,000  141,610,000 138,565,000 137,402,000  129,739,000 123,125,000 117,569,000 
        less: accumulated depreciation
      -299,727,000  -283,645,000 -277,951,000 -263,716,000  -258,813,000 -246,985,000 -242,888,000  -235,125,000 -237,231,000 -236,279,000                                                                       
        property, plant and equipment
      311,422,000 313,423,000 295,784,000 286,511,000 232,469,000 229,532,000 215,555,000 200,823,000 202,230,000 207,811,000 196,440,000 204,732,000 203,088,000 198,595,000  213,469,000    83,923,000    86,704,000    85,734,000    87,619,000    85,763,000    85,488,000    85,112,000    82,916,000    76,535,000    67,426,000    60,945,000    62,287,000    60,927,000    56,897,000            
        right-of-use lease assets
      38,534,000 38,737,000 38,454,000 40,610,000 36,122,000 34,120,000 35,408,000 36,693,000                                                                            
        goodwill
      502,005,000 501,720,000 501,767,000 502,438,000 524,667,000 518,894,000 532,523,000 517,582,000 522,575,000 512,518,000 504,457,000 507,370,000 517,206,000 515,008,000 592,385,000 607,205,000 557,323,000 83,296,000 83,204,000 83,333,000 83,695,000 84,230,000 86,708,000 86,034,000 85,816,000 84,762,000 81,683,000 80,804,000 79,324,000 79,324,000 80,003,000 79,111,000 78,412,000 76,017,000 75,169,000 77,933,000 70,053,000 58,921,000 58,633,000 58,151,000    59,169,000    58,152,000 57,764,000 55,282,000 53,675,000 52,758,000 49,493,000 44,452,000 45,509,000 46,515,000 46,362,000 44,610,000 41,889,000 40,997,000 43,300,000 47,129,000 45,799,000 43,789,000 43,067,000 41,108,000 40,235,000 38,740,000 37,966,000 37,999,000 37,237,000 35,418,000 35,811,000 35,308,000 35,086,000 34,853,000 33,495,000 32,906,000 33,309,000 33,301,000 28,890,000 24,155,000 22,308,000 
        other intangible assets
      847,994,000 873,540,000 890,645,000 908,297,000 830,270,000 827,098,000 874,806,000 866,167,000 886,146,000 896,721,000 890,464,000 918,143,000 936,345,000 942,925,000 1,050,203,000 1,121,765,000 1,064,048,000 59,855,000 61,421,000 63,582,000 65,912,000 67,650,000 70,872,000 71,603,000 73,514,000 74,406,000 71,850,000 73,071,000 69,789,000 71,530,000 72,464,000 73,287,000 75,829,000 66,034,000 67,153,000 70,408,000 59,301,000 29,657,000 30,472,000 31,272,000    32,809,000    31,783,000 26,315,000 23,127,000 23,579,000 24,030,000 7,175,000 5,012,000 5,272,000 5,579,000 5,852,000 6,027,000 6,123,000 6,417,000 6,873,000 7,480,000 7,668,000 7,873,000 8,097,000 8,270,000 8,046,000 8,330,000 7,839,000 8,192,000 8,494,000 8,703,000 9,162,000 9,264,000 9,667,000 8,574,000 8,736,000 8,996,000 9,299,000 9,616,000 6,290,000 5,771,000 5,639,000 
        investments in associated companies
      106,192,000 106,915,000 106,783,000 104,488,000 101,182,000 98,012,000 103,444,000 96,090,000 99,850,000 101,151,000 92,965,000 91,960,000 90,841,000 88,234,000 84,089,000 93,822,000 91,937,000 21,362,000 22,726,000 21,316,000 22,471,000 21,778,000 25,033,000 25,690,000 25,191,000 24,513,000 24,063,000 22,817,000 23,448,000 22,324,000 21,194,000 20,354,000 19,617,000 20,078,000 20,536,000 21,751,000 21,149,000 21,416,000 20,494,000 19,397,000    16,603,000    7,942,000 7,937,000 9,407,000 9,439,000 9,218,000 9,995,000 9,317,000 8,836,000 8,824,000 8,676,000 7,904,000 7,404,000 7,987,000 8,027,000 7,972,000 7,959,000 7,323,000 7,123,000 6,786,000 6,840,000 7,044,000 6,780,000 6,607,000 6,472,000 6,624,000 6,536,000 6,407,000 6,597,000 6,718,000 6,123,000 5,923,000 5,937,000 6,005,000 5,736,000 5,420,000 7,247,000 
        deferred tax assets
      12,182,000 12,128,000 10,050,000 9,251,000 9,443,000 9,216,000 12,172,000 12,903,000 10,117,000 10,737,000 9,569,000 10,033,000 10,422,000 11,218,000 14,706,000 14,745,000                                                                    
        other non-current assets
      30,999,000 30,283,000 27,329,000 23,108,000 17,855,000 17,360,000 19,920,000 22,834,000 22,228,000 18,770,000 33,705,000 33,019,000 27,916,000 27,739,000 41,352,000 40,433,000 43,313,000                                                                   
        total assets
      2,801,927,000 2,797,936,000 2,816,797,000 2,848,810,000 2,664,429,000 2,610,649,000 2,735,681,000 2,672,192,000 2,714,370,000 2,714,211,000 2,732,506,000 2,790,241,000 2,858,463,000 2,821,622,000                      665,526,000 644,210,000 596,637,000 589,707,000 584,146,000    536,634,000    505,521,000 499,833,000 490,819,000 476,027,000 449,430,000 428,515,000 409,326,000 406,830,000 398,471,000 391,118,000 367,590,000 367,075,000 385,439,000 425,229,000 434,306,000 419,043,000 399,049,000 398,589,000 391,264,000 374,119,000 357,382,000 358,027,000 350,584,000 342,455,000 331,995,000 313,350,000 307,809,000 312,403,000 324,893,000 311,184,000 300,881,000 296,151,000 287,347,000 258,819,000 237,041,000 217,324,000 
        liabilities and equity
                                                                                         
        current liabilities
                                                                                         
        short-term borrowings and current portion of long-term debt
      37,301,000 35,657,000 35,949,000 37,867,000 37,292,000 37,554,000 38,787,000 32,448,000 27,790,000 23,444,000 19,246,000 19,369,000 19,350,000 19,245,000 38,112,000 38,332,000 36,535,000 676,000 661,000 670,000 5,673,000 5,689,000 5,707,000 5,736,000 700,000 736,000 726,000 707,000 730,000 672,000 645,000 662,000 395,000 397,000 401,000 403,000 571,000 1,348,000 1,267,000 1,395,000    1,468,000    636,000 754,000 836,000 809,000 890,000 939,000 3,596,000 2,485,000 2,431,000 2,835,000 2,692,000 2,673,000 4,631,000 2,635,000 2,818,000 3,875,000 4,288,000 3,098,000 2,147,000 3,702,000 4,950,000 2,862,000 2,393,000 2,643,000 5,094,000 65,163,000 54,904,000 62,634,000 60,695,000 58,611,000 54,164,000 50,614,000 42,992,000 28,991,000 19,987,000 16,015,000 
        accounts payable
      205,386,000 198,929,000 205,541,000 203,606,000 199,430,000 198,137,000 191,788,000 185,351,000 191,161,000 184,813,000 190,067,000 193,790,000 216,633,000 193,983,000  164,101,000    87,819,000    93,008,000    77,583,000    67,291,000    74,987,000    72,281,000    67,586,000    65,026,000    61,192,000    58,389,000    48,849,000    65,202,000    54,212,000    50,832,000    40,183,000    39,240,000    
        dividends payable
      8,822,000 8,804,000 8,825,000 8,436,000 8,575,000 8,572,000 8,658,000 8,163,000 8,185,000 8,186,000 8,190,000 7,830,000 7,822,000 7,808,000  6,828,000    4,935,000    4,724,000    4,581,000    4,252,000    3,990,000    3,299,000    3,208,000    3,099,000    2,701,000    2,550,000    2,492,000    2,178,000    2,133,000    2,091,000    2,079,000    2,019,000    
        accrued compensation
      30,299,000 41,192,000 42,095,000 36,398,000 28,706,000 50,212,000 38,741,000 31,595,000 28,024,000 55,194,000 43,641,000 35,129,000 26,713,000 39,834,000 24,819,000 45,620,000 41,714,000 16,396,000 15,959,000 25,727,000 24,099,000 17,648,000 14,855,000 22,846,000 20,470,000 14,459,000 13,754,000 19,356,000 17,687,000 14,456,000 13,626,000 19,166,000 17,709,000 13,784,000 11,954,000 19,853,000 16,058,000 12,516,000 12,188,000 20,801,000    16,842,000    16,987,000 13,997,000 11,026,000 9,728,000 17,140,000 16,939,000 13,012,000 10,443,000 16,656,000 13,652,000 7,325,000 6,652,000 7,741,000 14,034,000 11,403,000 9,730,000 17,287,000 15,704,000 11,661,000 8,987,000 15,225,000 12,642,000 8,964,000 9,068,000 9,818,000 7,640,000 6,150,000 6,198,000 8,692,000 7,724,000 6,138,000 6,385,000 6,816,000 7,317,000 6,192,000 6,283,000 
        accrued restructuring
      9,482,000 8,351,000 4,800,000 7,646,000 7,159,000 2,297,000 1,727,000 1,048,000 1,516,000 3,350,000 3,590,000 5,160,000 6,809,000 5,483,000 14,548,000 18,043,000 19,320,000          530,000 670,000 2,233,000 4,080,000 5,969,000 6,303,000                                                    
        accrued pension and postretirement benefits
      2,119,000 2,126,000 2,259,000 2,253,000 2,228,000 2,328,000 2,182,000 2,191,000 2,210,000 2,208,000 1,574,000 1,579,000 1,572,000 1,560,000  3,405,000    1,211,000    1,108,000    1,086,000    1,144,000    1,239,000    1,438,000    2,188,000    2,038,000    1,672,000 1,628,000 4,682,000 4,702,000 4,717,000 1,869,000 4,919,000 7,369,000 7,380,000    30,699,000    38,430,000    38,210,000    36,456,000    34,165,000    
        other accrued liabilities
      95,086,000 85,097,000 83,930,000 83,853,000 89,436,000 80,668,000 89,462,000 89,281,000 91,341,000 90,315,000 85,799,000 83,681,000 90,513,000 86,873,000  83,605,000                                                                    
        total current liabilities
      388,495,000 380,156,000 383,399,000 380,059,000 372,826,000 379,768,000 371,345,000 350,077,000 350,227,000 367,510,000 352,107,000 346,538,000 369,412,000 354,786,000                      124,901,000 130,879,000 120,703,000 127,963,000 130,856,000    107,792,000    106,649,000 111,681,000 111,135,000 106,240,000 101,191,000 99,225,000 101,664,000 91,279,000 99,967,000 90,197,000 73,107,000 72,437,000 83,864,000 108,372,000 105,219,000 99,825,000 106,351,000 101,157,000 93,179,000 92,573,000 90,179,000 91,299,000 84,218,000 82,589,000 86,888,000 132,611,000 119,866,000 121,905,000 125,618,000 122,636,000 115,624,000 113,380,000 105,805,000 87,054,000 73,478,000 64,349,000 
        long-term debt
      837,132,000 834,901,000 838,522,000 897,953,000 698,768,000 669,614,000 700,648,000 703,655,000 740,408,000 730,623,000 804,973,000 863,934,000 921,555,000 933,561,000 1,076,292,000 882,437,000 826,503,000 11,788,000 11,720,000 35,934,000 46,875,000 58,397,000 69,648,000 61,068,000 72,374,000 73,896,000 65,649,000 65,769,000 75,607,000 83,601,000 97,620,000 81,439,000 107,913,000 61,694,000 72,698,000 75,328,000 62,009,000 24,611,000 17,215,000 17,321,000    30,000,000    46,701,000 43,397,000 33,628,000 83,766,000 73,855,000 58,445,000 60,975,000 71,099,000 63,685,000 64,875,000 68,699,000 77,629,000 84,236,000 85,364,000 87,405,000 89,235,000 78,487,000 89,364,000 96,247,000 90,535,000 85,237,000 83,550,000 82,684,000 79,989,000 67,410,000 8,173,000 14,133,000 14,483,000 14,848,000 17,966,000 17,946,000 15,622,000 15,827,000 18,222,000 16,620,000 16,590,000 
        long-term lease liabilities
      22,134,000 22,759,000 22,637,000 24,315,000 21,130,000 20,028,000 20,610,000 21,671,000 22,819,000 22,937,000 22,163,000 24,218,000 26,086,000 26,967,000 29,402,000 31,273,000 24,259,000 19,192,000 20,231,000                                                                 
        deferred tax liabilities
      131,922,000 140,814,000 150,726,000 151,038,000 136,593,000 138,828,000 143,219,000 147,100,000 150,618,000 146,957,000 151,606,000 156,247,000 157,935,000 160,294,000 190,880,000 211,094,000                                                                    
        non-current accrued pension and postretirement benefits
      20,191,000 20,615,000 23,769,000 24,491,000 24,062,000 23,783,000 25,752,000 28,109,000 28,931,000 29,457,000 27,344,000 29,174,000 28,985,000 28,765,000  56,828,000    32,360,000    35,548,000    38,348,000    40,689,000    46,088,000    37,006,000                                            
        other non-current liabilities
      22,902,000 22,192,000 30,861,000 25,499,000 24,550,000 24,445,000 27,837,000 25,974,000 29,575,000 31,805,000 33,212,000 33,464,000 37,702,000 38,664,000 120,849,000 66,384,000 111,851,000 74,620,000 73,507,000 43,529,000 82,925,000 82,541,000 85,580,000 51,496,000 71,355,000 69,924,000 70,093,000 35,886,000 71,629,000 77,401,000 78,964,000 42,584,000 85,939,000 86,450,000 86,108,000 45,490,000 78,391,000 80,113,000 80,062,000 47,538,000    52,867,000    54,818,000 78,033,000 77,534,000 78,849,000 51,161,000 48,477,000 45,462,000 45,859,000 42,317,000 44,746,000 44,208,000 44,338,000 42,670,000 68,294,000 75,118,000 77,557,000 41,023,000 75,477,000 74,409,000 71,139,000 23,353,000 57,889,000 58,274,000 58,740,000 22,363,000 39,556,000 42,894,000 43,802,000 7,372,000 42,241,000   6,802,000    
        total liabilities
      1,422,776,000 1,421,437,000 1,449,914,000 1,503,355,000 1,277,929,000 1,256,466,000 1,289,411,000 1,276,586,000 1,322,578,000 1,329,289,000 1,391,405,000 1,453,575,000 1,541,675,000 1,543,037,000                      300,391,000 277,199,000 231,927,000 231,699,000 239,115,000    246,958,000    249,795,000 240,603,000 229,114,000 275,265,000 262,331,000 242,093,000 242,779,000 243,715,000 242,176,000 244,819,000 230,370,000 238,894,000 255,564,000 270,247,000 276,526,000 274,826,000 264,143,000 272,836,000 269,596,000 259,740,000 242,516,000 237,773,000 230,106,000 226,110,000 219,479,000 186,246,000 182,553,000 185,782,000 189,882,000 185,704,000 177,898,000 173,029,000 165,287,000 144,024,000 127,804,000 116,613,000 
        commitments and contingencies
                                                                                         
        equity
                                                                                         
        common stock 1 par value; authorized 30,000,000 shares; issued and outstandingmarch 31, 2026 – 17,365,508 shares; december 31, 2025 – 17,331,779 shares
      17,366,000                                                                                   
        capital in excess of par value
      876,213,000 874,826,000 876,911,000 876,969,000 905,781,000 903,781,000 928,156,000 938,436,000 942,546,000 940,101,000 938,473,000 934,941,000 929,674,000 928,288,000 888,533,000 888,218,000 885,765,000 97,602,000 96,832,000 97,304,000 96,121,000 94,984,000 93,731,000 93,528,000 113,129,000 113,747,000 112,838,000 112,475,000 111,453,000 109,751,000 107,950,000 106,333,000 104,839,000 103,082,000 100,947,000 99,056,000 96,717,000 95,508,000 100,429,000 99,038,000    94,470,000    89,725,000 88,492,000 87,249,000 39,132,000 38,275,000 35,731,000 32,798,000 30,277,000 27,527,000 26,937,000 26,210,000 25,495,000 25,238,000 27,034,000 19,029,000 11,844,000 10,104,000 9,065,000 8,452,000 7,380,000 5,466,000 4,456,000 4,154,000 3,768,000 3,574,000 3,165,000 2,979,000 2,623,000 2,632,000 2,486,000 2,489,000 2,307,000 2,181,000 1,404,000 1,174,000 720,000 
        retained earnings
      607,463,000 596,616,000 584,706,000 563,063,000 638,079,000 633,731,000 628,103,000 604,404,000 577,682,000 550,641,000 538,628,000 513,148,000 491,632,000 469,920,000 377,362,000 412,979,000 404,569,000 424,448,000 413,992,000 405,125,000 402,255,000 387,498,000 373,185,000 365,936,000 380,421,000 374,001,000 366,819,000 364,414,000 351,560,000 340,127,000 329,684,000 326,740,000 321,856,000 315,060,000 305,902,000 299,524,000 290,876,000 279,161,000 267,707,000 258,620,000    215,390,000    175,932,000 169,265,000 158,998,000 152,237,000 144,347,000 140,161,000 136,497,000 129,994,000 123,140,000 117,757,000 115,254,000 117,091,000 117,089,000 122,320,000 120,375,000 118,506,000 115,767,000 113,326,000 112,342,000 110,365,000 114,498,000 113,640,000 112,622,000 111,752,000 111,317,000 118,858,000 118,736,000 119,029,000 117,981,000 118,390,000 119,316,000 118,546,000 117,308,000 115,216,000 113,083,000 111,591,000 
        accumulated other comprehensive loss
      -125,359,000 -115,661,000 -115,333,000 -115,181,000 -175,655,000 -201,619,000 -128,448,000 -165,762,000 -146,987,000 -124,415,000 -154,724,000 -130,108,000 -123,177,000 -138,240,000 -121,524,000 -78,170,000 -106,047,000 -78,881,000 -79,167,000 -80,715,000 -80,332,000 -74,351,000 -58,738,000 -65,100,000 -66,673,000 -72,938,000 -81,961,000 -87,407,000 -72,027,000 -71,790,000 -68,002,000 -73,316,000 -71,765,000 -60,771,000 -62,971,000 -54,406,000 -41,413,000 -31,587,000 -33,015,000 -34,700,000    -41,855,000    -29,820,000 -19,097,000 -5,507,000 -9,497,000 -13,736,000 -7,919,000 -20,070,000 -14,058,000 -10,439,000 -14,515,000 -19,987,000 -29,490,000 -27,237,000 -9,544,000   -5,625,000    -19,059,000    -18,710,000    -7,340,000    -15,406,000    
        total quaker shareholders’ equity
      1,375,683,000 1,373,113,000 1,363,652,000 1,342,245,000 1,385,885,000 1,353,567,000 1,445,663,000 1,395,019,000 1,391,231,000 1,384,319,000 1,340,378,000 1,335,980,000 1,316,111,000 1,277,918,000                      357,475,000 359,449,000 356,324,000 348,348,000 336,154,000    281,100,000    248,749,000 251,535,000 253,563,000 193,403,000 180,378,000 179,349,000 160,484,000 157,365,000 151,314,000 141,251,000 132,527,000 124,093,000                         
        noncontrolling interest
      3,468,000 3,386,000 3,231,000 3,210,000 615,000 616,000 607,000 587,000 561,000 603,000 723,000 686,000 677,000 667,000 418,000 1,604,000 1,432,000 1,454,000 1,372,000 1,317,000 1,258,000 1,215,000 1,262,000 1,946,000 11,883,000 11,474,000 10,988,000 9,846,000 9,455,000 8,895,000 8,658,000 8,198,000 7,915,000 7,818,000 7,919,000 7,660,000 7,562,000 8,386,000 9,660,000 8,877,000    8,576,000    6,977,000 7,695,000 8,142,000 7,359,000 6,721,000 7,073,000 6,063,000 5,750,000 4,981,000 5,048,000 4,693,000 4,088,000                         
        total equity
      1,379,151,000 1,376,499,000 1,366,883,000 1,345,455,000 1,386,500,000 1,354,183,000 1,446,270,000 1,395,606,000 1,391,792,000 1,384,922,000 1,341,101,000 1,336,666,000 1,316,788,000 1,278,585,000 1,162,541,000  1,203,450,000 457,961,000 446,363,000  432,636,000 422,677,000 422,763,000  452,059,000 439,594,000 421,975,000  413,698,000 400,233,000 391,526,000  376,151,000 378,526,000 365,129,000 365,135,000 367,011,000 364,710,000 358,008,000 345,031,000    289,676,000    255,726,000 259,230,000 261,705,000 200,762,000 187,099,000 186,422,000 166,547,000 163,115,000 156,295,000                            
        total liabilities and equity
      2,801,927,000 2,797,936,000 2,816,797,000 2,848,810,000 2,664,429,000 2,610,649,000 2,735,681,000 2,672,192,000 2,714,370,000 2,714,211,000 2,732,506,000 2,790,241,000 2,858,463,000 2,821,622,000                      665,526,000 644,210,000 596,637,000 589,707,000 584,146,000    536,634,000    505,521,000 499,833,000 490,819,000 476,027,000 449,430,000 428,515,000 409,326,000 406,830,000 398,471,000                            
        common stock
       17,332,000    17,674,000    17,992,000    17,950,000                                      11,492,000    11,086,000    10,833,000    10,147,000    9,926,000    9,726,000    9,669,000    9,664,000    
        common stock 1 par value; authorized 30,000,000 shares; issued and outstandingseptember 30, 2025 – 17,367,942 shares; december 31, 2024 – 17,673,607 shares
        17,368,000                                                                                 
        common stock 1 par value; authorized 30,000,000 shares; issued and outstandingjune 30, 2025 – 17,394,128 shares; december 31, 2024 – 17,673,607 shares
         17,394,000                                                                                
        common stock 1 par value; authorized 30,000,000 shares; issued and outstandingmarch 31, 2025 – 17,680,380 shares; december 31, 2024 – 17,673,607 shares
          17,680,000                                                                               
        common stock 1 par value; authorized 30,000,000 shares; issued and outstandingseptember 30, 2024 – 17,852,066 shares; december 31, 2023 – 17,991,988 shares
            17,852,000                                                                             
        common stock 1 par value; authorized 30,000,000 shares; issued and outstandingjune 30, 2024 – 17,940,532 shares; december 31, 2023 – 17,991,988 shares
             17,941,000                                                                            
        right of use lease assets
              38,195,000 38,614,000 38,595,000 40,983,000 43,344,000 43,766,000 40,496,000 42,905,000 33,789,000 24,828,000 26,069,000                                                                 
        common stock 1 par value; authorized 30,000,000 shares; issued and outstandingmarch 31, 2024 – 17,989,801 shares; december 31, 2023 – 17,991,988 shares
              17,990,000                                                                           
        common stock 1 par value; authorized 30,000,000 shares; issued and outstanding september 30, 2023 – 18,000,855 shares; december 31, 2022 – 17,950,264 shares
                18,001,000                                                                         
        common stock 1 par value; authorized 30,000,000 shares; issued and outstanding june 30, 2023 – 17,999,223 shares; december 31, 2022 – 17,950,264 shares
                 17,999,000                                                                        
        common stock 1 par value; authorized 30,000,000 shares; issued and outstanding march 31, 2023 – 17,981,822 shares; december 31, 2022 – 17,950,264 shares
                  17,982,000                                                                       
        accounts and other payables
                    177,976,000  173,722,000 93,886,000 91,145,000  96,053,000 96,815,000 103,525,000  95,584,000 91,461,000 90,215,000  78,579,000 75,569,000 69,748,000  77,212,000 74,762,000 71,718,000  85,888,000 80,033,000 81,367,000          73,616,000 79,465,000 76,595,000  59,854,000 62,200,000 56,949,000  55,495,000 43,755,000 41,933,000  71,196,000 73,718,000 68,519,000  63,279,000 64,159,000 64,404,000  58,314,000 55,917,000 53,546,000  43,730,000 43,510,000 37,733,000  41,576,000 42,017,000 41,439,000  35,420,000 33,828,000 29,340,000 
        other current liabilities
                    85,132,000  74,469,000 42,230,000 39,743,000 31,108,000 31,485,000 31,556,000 33,350,000 27,321,000 39,367,000 27,732,000 33,963,000 23,428,000 25,532,000 24,536,000 25,397,000 25,696,000 27,230,000 24,997,000 24,711,000 23,697,000 28,362,000 26,806,000 33,141,000 30,585,000    16,247,000    18,625,000 23,314,000 19,808,000 19,108,000 17,415,000 19,865,000 18,174,000 16,700,000 15,224,000 16,114,000 13,826,000 12,006,000 12,771,000 17,501,000 17,280,000 17,701,000 17,396,000 19,076,000 15,212,000 15,480,000 13,659,000 17,481,000 16,944,000 17,332,000 19,053,000 16,078,000 15,302,000 15,340,000 13,969,000 14,725,000 13,305,000 14,942,000 14,738,000 15,326,000 13,471,000 12,711,000 
        less accumulated depreciation
                      -176,371,000 -175,431,000 -172,084,000  -172,724,000 -171,975,000 -174,791,000  -167,270,000 -161,741,000 -154,594,000  -153,009,000 -149,826,000 -149,576,000  -148,096,000 -147,371,000 -142,496,000  -149,575,000 -153,600,000 -151,548,000          -135,066,000 -138,414,000 -133,719,000  -127,602,000 -118,688,000 -122,078,000  -127,420,000 -124,250,000 -117,817,000  -118,497,000 -123,836,000 -120,648,000  108,934,000 105,050,000 101,255,000  93,773,000 91,623,000 87,414,000  82,737,000 83,172,000 83,872,000  79,399,000 76,619,000 75,187,000  72,650,000 70,540,000 67,594,000 
        non-current deferred tax assets
                      5,415,000 7,948,000 9,333,000 6,946,000 15,072,000 12,602,000 13,103,000 15,460,000 22,229,000 20,742,000 22,460,000 24,382,000 17,621,000 19,082,000 19,916,000 27,071,000    24,411,000    24,724,000    30,673,000    29,823,000    28,846,000                                
        non-current deferred tax liabilities
                      212,673,000 7,781,000 9,194,000 10,003,000 9,543,000 8,302,000 9,037,000 9,653,000 12,618,000 12,458,000 12,101,000 12,008,000 11,776,000 11,748,000 11,071,000 15,003,000    8,584,000    6,394,000    6,383,000    7,094,000    6,108,000                                
        other assets
                       32,439,000 32,141,000 32,055,000 32,065,000 32,075,000 31,617,000 30,049,000 29,644,000 29,412,000 28,841,000 28,752,000 29,311,000 32,217,000 32,405,000 32,218,000 32,306,000 32,971,000 33,586,000 33,742,000 34,360,000 35,183,000 36,174,000 36,267,000    34,458,000    35,356,000 42,159,000 43,840,000 44,896,000 42,561,000 47,288,000 46,282,000 46,941,000 39,537,000 38,776,000 38,735,000 40,451,000 34,088,000 35,275,000 40,315,000 40,476,000 34,019,000 31,196,000 31,941,000 27,083,000 27,527,000 34,294,000 35,564,000 34,588,000 33,975,000 21,004,000 20,876,000 21,489,000 21,848,000 19,841,000 19,718,000 19,525,000 19,664,000 15,734,000 15,093,000 14,457,000 
        common stock 1 par value; authorized 30,000,000 shares; issued and outstanding
                                                                                         
        common stock 1 par value; authorized 30,000,000 shares; issued and
                                                                                         
        current deferred tax assets
                                     7,822,000    8,367,000    7,826,000    6,401,000    6,338,000    4,624,000                                
        current deferred tax liabilities
                                     41,000    732,000    1,057,000    253,000    238,000    181,000                                
        deferred income taxes
                                      21,071,000 20,740,000 21,770,000  21,996,000 22,158,000 19,936,000          22,862,000 25,784,000 27,303,000  31,953,000 31,210,000 31,510,000 5,247,000 36,456,000 37,023,000 35,638,000 4,948,000 31,542,000 30,480,000 32,018,000 4,042,000 33,037,000 32,517,000 33,197,000 4,379,000 24,031,000 24,284,000 24,856,000 4,439,000 18,701,000 18,842,000 18,852,000 4,373,000 12,852,000 12,839,000 12,875,000 4,550,000 10,571,000 10,566,000 10,545,000 
        2014 – 13,300,891 shares; 2013 – 13,196,140 shares
                                         13,301,000                                                
        net property, plant and equipment
                                          83,796,000 83,342,000 83,854,000          80,191,000 79,705,000 78,494,000  65,586,000 62,859,000 65,561,000  66,504,000 61,463,000 59,291,000  62,349,000 66,760,000 63,707,000  60,491,000 60,890,000 61,464,000  59,818,000 58,777,000 56,953,000  57,745,000 59,254,000 61,244,000  62,211,000 61,946,000 62,215,000  57,089,000 52,585,000 49,975,000 
        2014 – 13,269,266 shares; 2013 – 13,196,140 shares
                                          13,269,000                                               
        2014 – 13,242,167 shares; 2013 – 13,196,140 shares
                                           13,242,000                                              
        2014 – 13,226,717 shares; 2013 – 13,196,140 shares
                                            13,227,000                                             
        2013 – 13,196,140 shares; 2012 – 13,094,901 shares
                                             13,196,000                                            
        2013 – 13,187,320 shares; 2012 – 13,094,901 shares
                                                                                         
        2013 – 13,168,484 shares; 2012 – 13,094,901 shares
                                                                                         
        2013 – 13,139,691 shares; 2012 – 13,094,901 shares
                                                                                         
        2012 – 13,094,901 shares; 2011 – 12,911,508 shares
                                                 13,095,000                                        
        2012 – 13,081,917 shares; 2011 – 12,911,508 shares
                                                                                         
        2012 – 13,010,639 shares; 2011 – 12,911,508 shares
                                                                                         
        2012 – 12,950,752 shares; 2011 – 12,911,508 shares
                                                                                         
        2011 – 12,911,508 shares; 2010 – 11,492,142 shares
                                                     12,912,000                                    
        2011 – 12,875,113 shares; 2010 – 11,492,142 shares
                                                      12,875,000                                   
        2011 – 12,823,294 shares; 2010 – 11,492,142 shares
                                                       12,823,000                                  
        2011 – 11,531,148 shares; 2010 – 11,492,142 shares
                                                        11,531,000                                 
        construction fund
                                                            407,000 2,358,000 3,805,000 6,384,000 7,455,000 8,281,000 9,325,000 9,325,000                      
        common stock 1 par value; authorized 30,000,000 shares; issued 2010 – 11,376,232; 2009 – 11,085,549 shares
                                                          11,376,000                               
        common stock 1 par value; authorized 30,000,000 shares; issued 2010 – 11,258,582; 2009 – 11,085,549 shares
                                                           11,259,000                              
        common stock 1 par value; authorized 30,000,000 shares; issued and outstanding 2010 – 11,151,787; 2009 – 11,085,549 shares
                                                            11,152,000                             
        liabilities and shareholders’ equity
                                                                                         
        accrued restructuring and related activities
                                                              232,000 590,000 1,804,000                         
        quaker shareholders’ equity
                                                                                         
        common stock 1 par value; authorized 30,000,000 shares; issued 2009 – 11,072,352; 2008 – 10,833,325 shares
                                                              11,072,000                           
        total shareholders’ equity
                                                              146,299,000 137,220,000 128,181,000 125,923,000 150,643,000 152,897,000 139,467,000 130,393,000 121,074,000 116,861,000 110,225,000 110,831,000 113,802,000 113,277,000 109,709,000 105,907,000 119,827,000 117,561,000 119,678,000 122,587,000 113,504,000 111,962,000 112,444,000 112,352,000 104,741,000 99,652,000 92,222,000 
        total liabilities and shareholders’ equity
                                                              391,118,000 367,590,000 367,075,000 385,439,000 425,229,000 434,306,000 419,043,000 399,049,000 398,589,000 391,264,000 374,119,000 357,382,000 358,027,000 350,584,000 342,455,000 331,995,000 313,350,000 307,809,000 312,403,000 324,893,000 311,184,000   287,347,000    
        common stock 1 par value; authorized 30,000,000 shares; issued 2009 – 11,049,880; 2008 – 10,833,325 shares
                                                               11,050,000                          
        common stock 1 par value; authorized 30,000,000 shares; issued and outstanding 2009 –10,997,036; 2008- 10,833,325 shares
                                                                10,997,000                         
        minority interest in equity of subsidiaries
                                                                 3,952,000 4,339,000 4,883,000 4,750,000 4,513,000 4,679,000 4,807,000 4,154,000 4,035,000 6,452,000 7,201,000 6,636,000 6,609,000 7,277,000 7,695,000 6,943,000 12,424,000 11,976,000 11,021,000 10,678,000 9,708,000 10,054,000 9,585,000 8,489,000 
        shareholders’ equity
                                                                                         
        deferred compensation
                                                                  2,795,000                       
        common stock 1 par value; authorized 30,000,000 shares; issued 2008 – 10,832,828; 2007 – 10,147,239 shares
                                                                  10,833,000                       
        common stock 1 par value; authorized 30,000,000 shares; issued 2008 – 10,612,269; 2007 – 10,147,239 shares
                                                                   10,612,000                      
        accumulated other comprehensive income
                                                                   2,881,000                      
        common stock 1 par value; authorized 30,000,000 shares; issued 2008- 10,268,988, 2007- 10,147,239 shares
                                                                    10,269,000                     
        accumulated other comprehensive
                                                                    -1,152,000  -11,442,000 -14,039,000 -17,603,000  -14,168,000 -13,365,000 -15,615,000  -11,825,000 -13,689,000 -11,377,000  -16,491,000 -18,790,000 -16,851,000  -19,018,000 -20,410,000 -24,483,000 
        common stock 1 par value; authorized 30,000,000 shares; issued 2007 – 10,125,249 shares, 2006 - 9,925,976 shares
                                                                      10,125,000                   
        common stock 1 par value; authorized 30,000,000 shares; issued 2007 – 10,106,214, 2006 – 9,925,976 shares
                                                                       10,106,000                  
        common stock 1 par value; authorized 30,000,000 shares; issued 2007- 10,083,434, 2006- 9,925,976 shares
                                                                        10,083,000                 
        common stock 1 par value; authorized 30,000,000 shares; issued 2006 – 9,873,744, 2005 – 9,726,385 shares
                                                                          9,874,000               
        common stock 1 par value; authorized 30,000,000 shares; issued 2006 - 9,866,005, 2005 - 9,726,385 shares
                                                                           9,866,000              
        common stock 1 par value; authorized 30,000,000 shares; issued 2006- 9,804,154, 2005 9,726,385 shares
                                                                            9,804,000             
        unearned compensation
                                                                              -89,000 -177,000 -266,000 -355,000 -421,000 -488,000 -554,000 -621,000 -776,000 -931,000 -1,087,000 
        common stock 1 par value; authorized 30,000,000 shares; issued 2005- 9,717,871, 2004 9,668,751 shares
                                                                              9,718,000           
        common stock 1 par value; authorized 30,000,000 shares; issued 9,711,550 shares
                                                                               9,712,000          
        common stock 1 par value; authorized 30,000,000 shares; issued 9,668,617 shares
                                                                                9,669,000         
        property, plant, and equipment
                                                                                 62,888,000    62,391,000    
        shareholders’ equity - sum
                                                                                 122,587,000 113,628,000 112,191,000 113,112,000 113,126,000 106,490,000 102,580,000 96,405,000 
        treasury stock
                                                                                  -124,000 -229,000 -668,000 -774,000 -1,749,000 -2,928,000 -4,183,000 
        common stock 1 par value; authorized 30,000,000 shares; issued (including treasury shares) 9,664,009 shares
                                                                                  9,664,000 9,664,000 9,664,000  9,664,000 9,664,000 9,664,000 
        other noncurrent liabilities
                                                                                   41,564,000 41,278,000  37,004,000 36,006,000 34,145,000 
      Cashflow Statements:
      Quarterly
      Annual
        Unit: USD2026-03-31 2025-12-31 2025-09-30 2025-06-30 2025-03-31 2024-12-31 2024-09-30 2024-06-30 2024-03-31 2023-12-31 2023-09-30 2023-06-30 2023-03-31 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 2012-06-28 2012-03-31 2011-12-31 2011-09-30 2011-06-30 2011-03-31 2010-12-31 2010-09-30 2010-06-30 2010-03-31 2009-12-31 2009-09-30 2009-06-30 2009-03-31 2008-12-31 2008-09-30 2008-06-30 2008-03-31 2007-12-31 2007-09-30 2007-06-30 2007-03-31 2006-12-31 2006-09-30 2006-06-30 2006-03-31 2005-12-31 2005-09-30 2005-06-30 2005-03-31 2004-12-31 2004-09-30 2004-06-30 2004-03-31 2003-12-31 2003-06-30 2003-03-31 
                                                                                         
          cash flows from operating activities
                                                                                         
          net income
        19,742,000 20,759,000 30,486,000 -66,563,000 12,917,000 14,189,000 32,372,000 34,910,000 35,258,000 20,228,000 33,710,000 29,393,000 29,541,000 -28,344,000 15,316,000 -12,981,000 15,649,000 13,900,000 7,883,000 19,771,000 19,370,000 12,787,000 -9,359,000 11,704,000 12,341,000 7,614,000 17,939,000 16,351,000 15,405,000 13,344,000 11,852,000 14,835,000 15,412,000 10,607,000 12,927,000 16,119,000 15,942,000 13,309,000 14,680,000 13,305,000 16,675,000 14,191,000 15,193,000 11,184,000 11,170,000 12,693,000 10,310,000 13,805,000 10,555,000 11,230,000 7,463,000 6,857,000 9,734,000 10,037,000 8,373,000 5,423,000 3,492,000 202,000 -2,722,000 4,440,000 4,321,000 5,093,000 4,623,000 3,160,000 4,151,000 3,537,000 2,994,000 3,139,000 2,992,000 2,542,000 -5,445,000 2,212,000 1,795,000 3,126,000 1,664,000 1,154,000 2,847,000 3,309,000 4,115,000 6,582,000 3,107,000 
          adjustments to reconcile net income to net cash from operating activities:
                                                                                         
          depreciation and amortization
        25,640,000 24,982,000 24,193,000 23,679,000 20,599,000 20,960,000 21,175,000 21,182,000 20,802,000 20,553,000 20,610,000 20,578,000 20,246,000                                                                     
          equity in undistributed earnings of associated companies, net of dividends
        -2,830,000 -2,282,000 -4,322,000 2,725,000 -2,769,000 -3,778,000 5,266,000 -2,546,000 -1,675,000 -3,663,000 -3,279,000 194,000 -4,401,000                       -375,000 -1,004,000 -927,000 -1,637,000 -1,504,000 -1,942,000 921,000 -1,922,000 -257,000 -209,000 38,000      -290,000    -525,000    -191,000    -57,000 -70,000 44,000  -218,000 -125,000 92,000            
          deferred income taxes
        -7,517,000 -13,925,000 -869,000 -12,294,000 -3,340,000 -2,099,000                                                        1,246,000 1,144,000 -1,950,000 91,000 361,000  500,000 695,000 -361,000            
          share-based compensation
        3,170,000 3,192,000 3,516,000 3,721,000 3,182,000 2,578,000 4,285,000 4,244,000 3,884,000 3,416,000 3,775,000 3,887,000 3,527,000                                                                     
          restructuring and related charges
        7,381,000 4,002,000 7,745,000 8,793,000 14,590,000 1,743,000 2,610,000 320,000 1,857,000   1,043,000 3,972,000                                                                     
          gain on disposal of property, plant and equipment and other assets
          57,000                                                                               
          other adjustments
        492,000 -482,000 146,000 -7,418,000 2,190,000                                                                             
          increase in cash from changes in current assets and current liabilities, net of acquisitions:
                                                                                         
          accounts receivable
        -25,480,000 19,647,000 1,563,000 13,324,000 -10,302,000 4,350,000 10,142,000 9,052,000 1,431,000 10,036,000 116,000 25,991,000 -3,974,000                       -2,498,000 -7,176,000 -13,387,000 1,385,000 -3,309,000 -5,936,000 -3,977,000 2,160,000 5,650,000 2,733,000 -9,764,000   -4,914,000 -12,478,000 3,513,000 2,663,000 -7,039,000 -3,606,000 -7,767,000 -12,547,000 6,302,000 7,196,000 19,305,000 -4,736,000 -146,000 1,159,000 1,702,000 8,990,000 -4,152,000 -10,633,000 1,130,000 -1,331,000 -2,321,000 -6,425,000 -965,000 -6,154,000 1,270,000 -3,751,000 954,000 -2,491,000 -508,000 -4,316,000 -144,000 -11,380,000 -399,000 
          inventories
        -18,437,000 4,234,000 -4,647,000 1,631,000 -13,457,000 7,631,000 -1,734,000 -2,565,000 -6,576,000 19,144,000 18,857,000 17,542,000 -5,792,000                       -1,575,000 -1,179,000 -6,389,000 4,975,000 -2,300,000 -432,000 -1,837,000 4,103,000 2,996,000 -4,223,000 352,000   -5,677,000 -8,309,000 1,492,000 -1,464,000 -1,849,000 -5,332,000 -2,782,000 -2,475,000 4,962,000 10,060,000 8,477,000 -4,744,000 -1,432,000 -2,374,000 -1,955,000 694,000 -902,000 -3,019,000 415,000 -2,550,000 1,685,000 -3,696,000 -2,901,000 -2,199,000 -2,320,000 1,599,000 -2,169,000 720,000 -4,243,000 -1,867,000 -330,000 -2,789,000 -1,389,000 
          prepaid expenses and other current assets
        -1,340,000  -315,000 -4,188,000 245,000 1,670,000 7,734,000 -14,592,000 -1,054,000 9,750,000 -846,000 -2,160,000 -6,765,000                       175,000 1,186,000 -29,000 -1,760,000 1,303,000 171,000 -457,000 2,480,000 -30,000 -1,389,000 -557,000   -1,632,000 -2,397,000 1,842,000 -1,015,000 -281,000 -1,360,000 -3,412,000 -198,000 3,447,000 34,000 682,000 22,000 2,152,000 -3,037,000 1,872,000 -761,000 -116,000 -873,000 2,882,000 -573,000 -119,000 -2,330,000 2,224,000 -1,892,000 -562,000 391,000 3,778,000 -741,000 -550,000 -2,768,000 -2,235,000 1,204,000 -1,342,000 
          accrued restructuring
        -3,880,000 -4,927,000 -5,725,000 -6,901,000 -9,045,000 -1,198,000 -1,955,000                                                                           
          accounts payable and accrued liabilities
        6,845,000 -4,276,000 -441,000 -9,839,000 -15,712,000 16,975,000 -591,000 -1,621,000 -23,400,000 3,891,000 13,958,000 -18,380,000 6,468,000                       13,343,000 -3,329,000 -544,000 -1,955,000 9,606,000 2,776,000 874,000 -831,000 -4,756,000 1,087,000 1,938,000   2,082,000 4,455,000 504,000 -1,402,000 12,227,000 -5,818,000 6,267,000 16,627,000 -309,000 -6,045,000 -28,680,000 4,934,000 5,134,000 -9,280,000 1,603,000 2,886,000 374,000 2,749,000 -2,911,000 6,876,000 1,230,000 245,000 10,377,000 2,631,000 8,113,000 -5,395,000 -1,667,000 2,009,000 -542,000 329,000 2,713,000 -2,467,000 -5,927,000 
          net cash from operating activities
        3,786,000 46,544,000 51,387,000 41,572,000 -3,050,000 63,064,000 67,980,000 46,303,000 27,231,000 79,560,000 83,408,000 78,270,000 37,782,000                       29,786,000 10,051,000 -1,797,000 21,849,000 24,457,000 16,189,000 11,306,000 21,123,000 19,829,000 15,209,000 6,732,000   7,266,000 -7,099,000 18,037,000 9,215,000 15,064,000 -4,769,000 6,868,000 7,948,000 18,590,000 8,197,000 2,392,000 2,882,000 14,309,000 -6,192,000 11,116,000 19,251,000 2,162,000 -5,028,000 4,823,000 8,816,000 6,189,000 -11,645,000 9,225,000 -5,618,000 10,489,000 -2,807,000 522,000 4,561,000 221,000 -1,947,000 7,074,000 -2,185,000 -3,565,000 
          cash flows from investing activities
                                                                                         
          investments in property, plant and equipment
        -10,656,000 -22,226,000 -13,341,000 -7,960,000 -12,329,000 -22,457,000 -8,213,000 -6,664,000 -4,460,000 -13,006,000 -8,754,000 -10,879,000 -6,161,000                       -2,855,000 -2,464,000 -3,057,000 -4,109,000 -2,128,000 -2,479,000 -2,723,000  -2,334,000 -3,245,000 -3,178,000   -3,166,000 -3,475,000  -2,791,000 -1,426,000 -2,042,000  -4,733,000 -2,703,000 -2,375,000  -2,160,000 -5,089,000 -1,949,000  -1,251,000 -1,459,000 -2,721,000   -3,208,000 -1,655,000  -1,946,000 -1,568,000 -1,628,000  -1,895,000 -2,568,000 -2,347,000  -4,859,000 -2,113,000 
          payments related to acquisitions, net of cash acquired
         -131,000 -160,095,000 -3,983,000 -14,403,000 -24,899,000                              -1,831,000 -647,000 -3,000,000                                       
          proceeds from disposition of assets
         3,000 42,000 50,000 2,900,000 1,878,000 2,740,000 58,000                           50,000 70,000 58,000 122,000 46,000 332,000 13,000 52,000 109,000 20,000 64,000   51,000 170,000 82,000 88,000 18,000 41,000 26,000 23,000 12,000 1,605,000 38,000 22,000 52,000 65,000 83,000 70,000   18,000   24,000 1,224,000 23,000 647,000        
          other investing activities
        1,126,000 1,123,000 1,131,000                                                                               
          net cash from investing activities
        -9,530,000 -21,100,000 -12,299,000 -167,308,000 -13,412,000 -20,579,000 -22,616,000 -3,924,000 -29,301,000 -1,827,000 -8,754,000 -10,879,000 -6,161,000                       -54,518,000 -1,751,000 -2,662,000 -3,730,000 -1,735,000 -3,594,000 -3,357,000 -6,609,000 -4,594,000 -2,900,000 -2,631,000   -3,333,000 -2,940,000 -31,645,000 -9,112,000 -574,000 295,000 -3,021,000 -1,637,000 -1,154,000 -800,000 -1,746,000 -1,842,000 -13,813,000 -2,748,000 -3,893,000 -844,000 -1,232,000 -3,456,000 -4,189,000 -3,537,000 -3,146,000 -2,583,000  -722,000 -1,311,000 -4,692,000 -66,000 -1,830,000 -2,483,000 -2,171,000 -13,582,000 -2,021,000 -353,000 
          cash flows from financing activities
                                                                                         
          payments of long-term debt
        -8,770,000 -8,755,000 -8,762,000 -8,682,000 -8,523,000 -8,621,000 -14,431,000 -29,458,000 -4,711,000 -24,857,000 -4,636,000 -4,736,000 -4,703,000                                                                     
          borrowings on revolving credit facilities
        14,053,000  -47,062,000 186,000,000 30,000,000                                                                             
          borrowings (payments) on other debt
        1,857,000                                                                                 
          dividends paid
        -8,805,000 -8,810,000 -8,437,000 -8,574,000 -8,572,000 -8,647,000 -8,151,000 -8,186,000 -8,186,000 -8,191,000 -7,828,000 -7,822,000 -7,809,000                       -3,973,000 -3,307,000 -3,300,000 -3,297,000 -3,293,000 -3,220,000 -3,208,000 -3,206,000 -3,197,000 -3,108,000 -3,105,000   -2,712,000 -2,701,000 -2,681,000 -2,649,000 -2,569,000 -2,550,000 -2,546,000 -2,543,000 -2,530,000 -2,492,000 -2,509,000 -2,444,000 -2,369,000 -2,181,000 -2,170,000 -2,180,000 -2,167,000 -2,137,000 -2,124,000 -2,121,000 -2,109,000 -2,090,000 -2,089,000 -2,088,000 -2,084,000 -2,079,000 -2,071,000 -2,079,000 -2,071,000 -2,020,000 -2,007,000 -3,924,000 -1,961,000 
          other stock related activity
        -1,749,000 -288,000 202,000 -125,000 -1,176,000 -1,752,000 861,000 -50,000 -1,442,000  -241,000 1,397,000 -2,109,000                                                                     
          net cash from financing activities
        -3,414,000 -17,435,000 -68,286,000 136,598,000 10,956,000 -55,662,000 -27,705,000 -45,860,000 6,563,000 -88,081,000 -61,509,000 -64,150,000 -24,866,000                       31,632,000 -8,521,000 -3,498,000 -4,471,000 -8,280,000 -8,713,000 -4,742,000 -12,765,000 -10,274,000 -4,816,000 -2,686,000   -4,460,000 7,096,000 12,714,000 -4,806,000 -8,938,000 5,367,000 -4,160,000 -6,423,000 -12,048,000 -10,186,000 -2,820,000 2,704,000 950,000 8,520,000 -11,986,000 -9,580,000 2,471,000 3,192,000    7,264,000 -4,213,000 1,289,000 -9,412,000 -2,510,000 -4,803,000 2,430,000 4,329,000 5,424,000 9,167,000 4,914,000 1,696,000 
          effect of foreign exchange rate changes on cash
        -943,000 -218,000 -682,000 4,833,000 2,849,000 -10,017,000 5,847,000 -3,701,000 -3,270,000 6,517,000 -4,192,000 -3,708,000 2,154,000           1,743,000 1,452,000 1,563,000  195,000                                                      
          net decrease in cash and cash equivalents
        -10,101,000            8,909,000                                     -2,202,000    -231,000           3,730,000 -5,275,000  3,674,000              
          cash and cash equivalents at the beginning of the period
        179,829,000 188,880,000 194,527,000 180,963,000                                                                     
          cash and cash equivalents at the end of the period
        169,728,000 7,791,000 -29,880,000 15,695,000 186,223,000 -23,194,000 23,506,000 -7,182,000 195,750,000 -3,831,000 8,953,000 -467,000 189,872,000                                                                     
          supplemental cash flow disclosures:
                                                                                         
          non-cash activities:
                                                                                         
          accrued purchases of property, plant and equipment
        7,794,000                                                                                 
          gain on disposal of property, plant, equipment and other assets
                                                                                         
          inventory step-up amortization
                                                                                       
          impairment charges
                                                                                       
          uncertain tax positions
                                                                                         
          pension and other postretirement benefits
             -504,000 -2,962,000 -443,000 -551,000 -79,000 -1,692,000 107,000 -415,000                       1,104,000 739,000 -1,665,000 1,423,000 1,323,000 637,000 -2,521,000 396,000 128,000 406,000 -2,357,000   742,000 -4,910,000 548,000 -957,000 38,000 -2,265,000 -2,052,000 -2,078,000 -1,892,000 -1,907,000 14,000 -230,000 -853,000 -2,458,000 -1,064,000 -759,000 -904,000 -869,000 -1,139,000 -356,000 -887,000 -1,865,000 3,466,000 -3,537,000 -161,000 -207,000 -825,000 242,000 98,000 313,000    
          increase in change in operating assets and liabilities, net of acquisitions
                                                                                         
          prepaid expenses and other assets
                                                                                         
          estimated taxes on income
                                                                                         
          borrowings (payments) on revolving credit facilities
             -12,584,000 9,967,000 -369,000 20,902,000                                                                         
          (payments) borrowings on other debt
                                                                                         
          shares purchased under share repurchase program
                                                                                         
          net increase in cash and cash equivalents
         7,791,000 -29,880,000 15,695,000 -2,657,000 -23,194,000 23,506,000 -7,182,000 1,223,000 -3,831,000 8,953,000                         3,989,000 -218,000 -8,042,000 14,547,000 15,399,000 3,290,000 2,709,000 2,375,000 4,920,000 6,288,000 2,055,000     -1,383,000 -457,000   -318,000 764,000 6,628,000 -2,915,000 -3,174,000 1,896,000 1,643,000 332,000 -4,029,000        3,012,000 -3,998,000 -991,000 -10,980,000 -870,000 5,478,000 1,576,000 979,000 3,934,000 1,241,000  
          cash paid during the year for:
                                                                                         
          interest
                                                                                         
          payments on other debt
          -424,000 672,000 -773,000       13,000 -469,000                                                                     
          shares purchased under share repurchase programs
          -3,803,000    -15,146,000                                                                           
          change in accrued purchases of property, plant and equipment
          2,408,000 1,714,000 -7,105,000                                                                             
          loss on disposal of property, plant and equipment and other assets
            -2,148,000                                                                             
          amortization of debt issuance costs
             354,000 353,000 353,000 353,000 354,000 353,000 353,000 353,000                                                                     
          deferred compensation and other
             6,295,000                              -1,668,000 396,000 2,944,000 -209,000 1,030,000 -219,000 -861,000 -2,004,000 516,000 1,435,000 -103,000   2,195,000 1,967,000 -2,187,000 1,916,000 -646,000 289,000 682,000 1,491,000 1,331,000 -2,852,000 -21,000 -1,658,000 2,476,000 22,000 -963,000 54,000 557,000 267,000 -894,000 326,000 245,000 -184,000 -1,114,000 791,000 -90,000 388,000 -1,042,000 758,000 37,000 208,000    
          loss on extinguishment of debt
                                                                                         
          proceeds from long-term debt
                                           37,500,000          1,350,000    10,000,000 9,812,000   7,583,000 1,916,000 1,584,000 156,000 9,844,000             101,000      
          financing-related debt issuance costs
                                                                                         
          income taxes, net of refunds
                                                                                         
          deferred compensation, deferred taxes and other
               -1,215,000 568,000  -669,000 2,385,000 -2,231,000                                                                     
          decrease in cash from changes in current assets and current liabilities, net of acquisitions:
                                                                                         
          change in restructuring liabilities
                -3,666,000 -1,872,000 -2,504,000 -2,663,000 -2,747,000                                          -233,000 -355,000 -1,233,000 -2,652,000         -302,000 -320,000 -499,000 -2,912,000  -254,000 -742,000 -640,000 -78,000 -153,000 -37,000 -290,000 -175,000 -866,000 -699,000 
          acquisition-related fair value adjustments related to inventory
                                                                                         
          combination and other acquisition-related expenses, net of payments
                                                                                         
          (repayments) borrowings on revolving credit facilities
                                                                                         
          repayments on other debt
                                                                                         
          stock options exercised, other
                                           -161,000 172,000 -205,000 203,000 -594,000 143,000 -59,000 -96,000 97,000 363,000 -1,288,000   196,000 -50,000 1,671,000 2,166,000 1,528,000 135,000 59,000 91,000 193,000 69,000 -2,055,000 6,346,000 6,142,000 1,486,000 374,000 330,000 796,000 1,809,000     142,000 113,000   191,000 102,000 484,000 232,000    
          restructuring and related charges (credits)
                                                                                         
          payments on revolving credit facilities
                                                                                         
          borrowings on other debt
                                                                                         
          (payments) borrowings on revolving credit facilities
                   -53,002,000 -9,776,000                                                                     
          loss on disposal of property, plant, equipment and other assets
                                                                                         
          insurance settlement realized
                                             -337,000  -347,000   -317,000 -266,000 -325,000 -483,000   -499,000 -365,000 -415,000 -453,000 -427,000 -345,000 -504,000 -494,000 -466,000 -144,000 -575,000 -296,000 -549,000 -136,000 -588,000 -353,000 -648,000 -265,000 -292,000 -95,000 -85,000 -72,000            
          gain on inactive subsidiary litigation and settlement reserve
                                                                                         
          insurance settlement interest earned
                                             11,000  12,000                                          
          purchase of noncontrolling interest in affiliates
                                                                                         
          distributions to noncontrolling affiliate shareholders
                                           -1,149,000                                              
          net increase in cash, cash equivalents and restricted cash
                     192,396,000 -4,905,000   -32,312,000 4,021,000 9,444,000 -2,726,000 2,636,000                                                            
          cash, cash equivalents and restricted cash at the beginning of the period
                     143,555,000 124,425,000                                                              
          cash, cash equivalents and restricted cash at the end of the period
                     335,951,000 -4,905,000 42,002,000 14,345,000 92,113,000 4,021,000 9,444,000                                                              
          increase in cash from changes in current assets and current
                                                                                         
          net decrease in cash, cash equivalents and restricted cash
                                                                                         
          cash, cash equivalents and restricted cash at beginning of period
                             111,050,000                                                            
          cash, cash equivalents and restricted cash at end of period
                             113,686,000                                                            
          adjustments to reconcile net income to net cash from operating activities
                                                                                         
          effect of exchange rate changes on cash
                                     1,421,000  -2,923,000 197,000 -1,708,000 -1,148,000 -2,911,000 3,000 -85,000 899,000 957,000 -592,000 -498,000 626,000 -41,000 -1,205,000 640,000 -1,395,000 -2,165,000 504,000 741,000 -489,000 4,246,000 -2,766,000 -1,124,000 -5,000 876,000 1,240,000 -126,000 -1,000,000 -1,848,000 197,000 752,000 734,000 880,000 329,000 17,000 461,000 259,000 -112,000 448,000 -177,000 1,053,000 -757,000 -971,000 3,477,000 317,000 -491,000 -327,000 1,275,000 533,000 409,000 
          depreciation
                                           3,070,000 3,009,000 3,075,000 3,120,000 3,094,000 3,069,000 3,056,000 3,251,000 3,032,000 2,912,000 3,057,000   2,749,000 2,656,000 2,419,000 2,380,000 2,475,000 2,593,000 2,577,000 2,147,000 2,343,000 2,458,000 2,600,000 2,822,000 2,777,000 2,680,000 3,107,000 3,079,000 2,781,000 2,719,000 2,730,000 2,513,000 2,398,000 2,495,000 2,432,000 2,183,000 2,280,000 2,268,000 2,338,000 2,174,000 2,117,000 1,981,000 1,431,000 3,394,000 1,646,000 
          amortization
                                           1,126,000 815,000 813,000 824,000 858,000 884,000 879,000 823,000 818,000 719,000 746,000   487,000 486,000 252,000 274,000 208,000 254,000 281,000 275,000 265,000 257,000 271,000 300,000 306,000 300,000 297,000 289,000 272,000 339,000 369,000 350,000 357,000 351,000 354,000 368,000 340,000 306,000 294,000 288,000 291,000 284,000 340,000 438,000 215,000 
          stock-based compensation
                                           1,227,000 1,344,000 1,388,000 1,028,000 981,000 1,112,000 1,040,000 853,000 876,000 892,000 1,186,000   986,000 868,000 725,000 708,000 936,000 727,000 545,000 658,000 575,000 352,000 259,000 1,880,000 1,386,000 376,000 687,000 302,000 299,000 262,000  216,000 214,000 171,000            
          loss on disposal of property, plant and equipment
                                              7,000                    -7,000 73,000 -41,000 -35,000 -73,000 27,000 1,000 5,000 15,000               
          insurance settlements realized
                                           -234,000                                              
          interest earned on insurance settlements
                                           11,000                                              
          change in restricted cash
                                           223,000 631,000 326,000 245,000 335,000 370,000 -14,000 301,000 248,000 308,000 465,000   479,000 343,000 392,000 424,000 802,000 -2,742,000 1,911,000 3,009,000 1,493,000 -4,086,000 1,547,000 240,000 -8,842,000 -4,976,000 417,000 145,000 -4,535,000 122,000 -7,304,000 9,000 6,000 -3,000            
          repayment of long-term debt
                                           -858,000 -16,000 -232,000 -502,000 -4,726,000 -5,125,000 -2,438,000 -7,960,000 -7,918,000 -1,565,000 -189,000   -40,171,000 -231,000    -122,000    -7,728,000    -251,000    -225,000    -233,000 -238,000 -8,810,000 -236,000 -282,000 -3,380,000 -44,000 -95,000 -160,000   -7,000 
          excess tax benefit related to stock option exercises
                                           163,000 28,000 239,000 363,000 83,000 369,000 -119,000 744,000 874,000 546,000   84,000 78,000 264,000 1,058,000 915,000 321,000                            
          purchase of a noncontrolling interest in an affiliate
                                           110,000                                              
          payment of acquisition-related earnout liability
                                                                                        
          cash and cash equivalents at beginning of period
                                           68,492,000 32,547,000 16,909,000   25,766,000  25,051,000  20,892,000  20,195,000  16,062,000  16,121,000  29,078,000  21,915,000  13,857,000 13,857,000 
          cash and cash equivalents at end of period
                                           3,989,000 -218,000 60,450,000 14,547,000 15,399,000 3,290,000 35,256,000 2,375,000 4,920,000 6,288,000 18,964,000   -23,000 23,564,000  -457,000 2,786,000 24,820,000  764,000 6,628,000 17,977,000  1,896,000 1,643,000 20,527,000  9,707,000 3,730,000 10,787,000  3,674,000 2,506,000 9,605,000  -3,998,000 -991,000 18,098,000  5,478,000 1,576,000 22,894,000  15,098,000 12,044,000 
          accrued property, plant and equipment purchases
                                               19,000                                          
          gain on disposal of property, plant and equipment
                                            -49,000 -48,000   -222,000 -2,000  -62,000 1,000 -14,000   -38,000 -40,000  -2,000 10,000 -32,000 -8,000 -1,000 -1,193,000                        
          net increase in short-term borrowings
                                                 594,000                        -1,262,000    -2,504,000 -60,518,000 13,032,000 -7,281,000 2,064,000 2,067,000 4,451,000 3,548,000 7,617,000 13,895,000 7,747,000 3,791,000 
          acquisition-related fair value adjustments
                                                                                         
          interest earned on an insurance settlement
                                                                                         
          net decrease in short-term borrowings
                                                               -80,000 -97,000 -1,619,000  99,000 -1,110,000 -378,000                    
          proceeds from sale of common stock, net of related expenses
                                                                                         
          dividends paid to noncontrolling shareholders
                                                                                         
          income taxes
                                                                                         
          distributions to noncontrolling shareholders
                                                  -1,069,000           -616,000 -184,000                          
          insurance settlement received and interest earned
                                                 14,000 16,000 18,000 17,000 18,000   20,000 22,000 23,000 29,000 32,000 5,038,000 40,000 64,000 44,000 5,056,000 72,000 56,000 66,000 5,112,000 171,000 208,000                  
          capital expenditures
        7,794,000 2,408,000 1,714,000 -7,105,000                       19,000   -3,866,000 
          free cash flows
        11,580,000 46,544,000 53,795,000 43,286,000 -10,155,000 63,064,000 67,980,000 46,303,000 27,231,000 79,560,000 83,408,000 78,270,000 37,782,000                       29,786,000 10,051,000 -1,797,000 21,849,000 24,476,000 16,189,000 11,306,000 21,123,000 19,829,000 15,209,000 6,732,000   7,266,000 -7,099,000 18,037,000 9,215,000 15,064,000 -4,769,000 6,868,000 7,948,000 18,590,000 8,197,000 2,392,000 2,882,000 14,309,000 -6,192,000 11,116,000 19,251,000 2,162,000 -5,028,000 957,000 8,816,000 6,189,000 -11,645,000 9,225,000 -5,618,000 10,489,000 -2,807,000 522,000 4,561,000 221,000 -1,947,000 7,074,000 -2,185,000 -3,565,000 
          restricted insurance receivable
                                                          5,000,000                            
          property, plant and equipment acquired by capital lease
                                                                                         
          non-cash gain from purchase of equity affiliate
                                                                                         
          equity in net loss of associated companies, net of dividends
                                                         -262,000    89,000    142,000                        
          restructuring and related activities
                                                              2,289,000             4,786,000 1,232,000        
          equity in net income of associated companies, net of dividends
                                                                     -112,000                    
          cash and cash equivalents at beginning of the period
                                                                                         
          cash and cash equivalents at end of the period
                                                                                         
          supplemental cash flow disclosures
                                                                                         
          payments related to acquisitions
                                                              -975,000 -1,000,000 -859,000 -1,000,000 -830,000 -16,000 -527,000 -1,000,000 -615,000 -69,000 -1,000,000 -6,700,000     -9,246,000 -1,105,000  
          repayments of long-term debt
                                                           -2,753,000    -5,623,000    -1,045,000    -226,000    -230,000              
          environmental charges
                                                                                        
          proceeds from short-term debt
                                                                                         
          minority interest in earnings of subsidiaries
                                                                  67,000 266,000 211,000 364,000 253,000 350,000 428,000 348,000 289,000 312,000 417,000 304,000 131,000 441,000 719,000 918,000 1,093,000 865,000 897,000 1,019,000 726,000 1,538,000 751,000 
          distributions to minority shareholders
                                                                  -152,000    -401,000 -594,000 -270,000 -26,000 -1,114,000 -350,000 -1,035,000 -958,000 -1,000 -2,204,000 -1,711,000 -245,000 -1,373,000 -609,000 -213,000 
          short-term debt borrowings
                                                                                         
          gain on sale of partnership assets
                                                                              -2,989,000        
          proceeds from partnership disposition of assets
                                                                              2,989,000        
          repayments of short-term debt
                                                                                         
          long-term debt borrowings
                                                                       -7,789,000 5,644,000 5,277,000  1,340,000 2,000,000 12,340,000            
          interest received on insurance settlement
                                                                         143,000  86,000 79,000 75,000            
          deferred income tax
                                                                                         
          stock based compensation
                                                                                         
          other
                                                                                  -113,000 10,000 85,000 -57,000 30,000 53,000 481,000 
          issuance of common stock
                                                                           94,000 234,000 101,000            
          net cash from by financing activities
                                                                           -1,864,000              
          net (decrease) in cash and cash equivalents
                                                                             -6,516,000           -1,813,000 
          equity in net income of associated companies
                                                                              -204,000 -208,000 -153,000 -53,000 -291,000 -264,000 -186,000 -149,000 -374,000 -255,000 -86,000 
          gain on sale of property, plant, and equipment
                                                                                         
          restructuring liabilities
                                                                                         
          dividends and distributions from associated companies
                                                                                55,000 233,000 190,000 3,890,000 1,800,000 
          insurance settlement received
                                                                                         
          investment in restricted cash
                                                                                         
          net cash (used in) investing activities
                                                                                         
          cash and cash equivalents at beginning of year
                                                                                         
          cash and cash equivalents at end of year
                                                                                         
          adjustments to reconcile net income to net cash from provided by operating activities:
                                                                                         
          increase in cash from changes in current assets and current liabilities:
                                                                                         
          environmental charge
                                                                                         
          restructuring charges
                                                                                         
          investments in and advances to associated companies
                                                                                         
          treasury stock issued
                                                                                      1,222,000 1,697,000 86,000 
          noncash investing activities:
                                                                                         
          contribution of property, plant, and equipment to real estate joint venture
                                                                                         
          deferred compensation and other postretirement benefits
                                                                                       -382,000 77,000 
          pension and other
                                                                                       2,798,000