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Net Sales and Revenue Recognition (Tables)	12 Months Ended
Net Sales and Revenue Recognition (Tables)	Dec. 31, 2020
Disaggregation Of Revenue [Abstract]
Disaggregation Of Revenue [Table Text Block]	2020 2019 2018 Metal removal fluids 23.9 % 19.9 % 15.4 % Rolling lubricants 21.8 % 21.9 % 25.5 % Hydraulic fluids 13.3 % 13.0 % 13.0 % Net sales for the year ending December 31, 2020 Consolidated Americas EMEA Asia/Pacific Total Customer Industries Metals $ 163,135 $ 107,880 $ 168,096 $ 439,111 Metalworking and other 287,026 275,307 147,203 709,536 450,161 383,187 315,299 1,148,647 Global Specialty Businesses 154,796 68,164 46,070 269,030 $ 604,957 $ 451,351 $ 361,369 $ 1,417,677 Timing of Revenue Recognized Product sales at a point in time $ 580,663 $ 434,549 $ 352,917 $ 1,368,129 Services transferred over time 24,294 16,802 8,452 49,548 $ 604,957 $ 451,351 $ 361,369 $ 1,417,677 Net sales for the year ending December 31, 2019 Consolidated Americas EMEA Asia/Pacific Total Customer Industries Metals $ 171,784 $ 100,605 $ 141,870 $ 414,259 Metalworking and other 220,337 184,965 105,969 511,271 392,121 285,570 247,839 925,530 Global Specialty Businesses 149,428 30,115 28,430 207,973 $ 541,549 $ 315,685 $ 276,269 $ 1,133,503 Timing of Revenue Recognized Product sales at a point in time $ 525,802 $ 310,274 $ 269,228 $ 1,105,304 Services transferred over time 15,747 5,411 7,041 28,199 $ 541,549 $ 315,685 $ 276,269 $ 1,133,503 Net sales for the year ending December 31, 2018 Consolidated Americas EMEA Asia/Pacific Total Customer Industries Metals $ 164,263 $ 101,028 $ 120,627 $ 385,918 Metalworking and other 133,338 115,956 71,875 321,169 297,601 216,984 192,502 707,087 Global Specialty Businesses 122,165 16,613 21,655 160,433 $ 419,766 $ 233,597 $ 214,157 $ 867,520 Timing of Revenue Recognized Product sales at a point in time $ 408,402 $ 233,372 $ 206,112 $ 847,886 Services transferred over time 11,364 225 8,045 19,634 $ 419,766 $ 233,597 $ 214,157 $ 867,520