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Business Segment Information (Sales and Long-lived Assets by Geographic Area) (Details) - USD ($) $ in Thousands | 3 Months Ended | 12 Months Ended
--- | --- | ---
Dec. 31, 2020 | Sep. 30, 2020 | Jun. 30, 2020 | Mar. 31, 2020 | Dec. 31, 2019 | Sep. 30, 2019 | Jun. 30, 2019 | Mar. 31, 2019 | Dec. 31, 2020 | Dec. 31, 2019 | Dec. 31, 2018
Revenues from External Customers and Long-Lived Assets [Line Items] |  |  |  |  |  |  |  |  |  |  |
Sales | $ 985,300 | $ 924,300 | $ 925,000 | $ 893,500 | $ 1,068,200 | $ 995,700 | $ 990,000 | $ 885,800 | $ 3,728,134 | $ 3,939,697 | $ 3,835,699
Percentage |  |  |  |  |  |  |  |  | 100.00% | 100.00% | 100.00%
Long-Lived Assets | $ 986,424 |  |  |  | $ 1,002,836 |  |  |  | $ 986,424 | $ 1,002,836 | $ 830,144
Percentage | 100.00% |  |  |  | 100.00% |  |  |  | 100.00% | 100.00% | 100.00%
Sales Revenue, Goods, Net | Geographic Concentration Risk |  |  |  |  |  |  |  |  |  |  |
Revenues from External Customers and Long-Lived Assets [Line Items] |  |  |  |  |  |  |  |  |  |  |
Percentage of net sales to international customers to total sales |  |  |  |  |  |  |  |  | 65.00% | 63.00% | 63.00%
United States |  |  |  |  |  |  |  |  |  |  |
Revenues from External Customers and Long-Lived Assets [Line Items] |  |  |  |  |  |  |  |  |  |  |
Sales |  |  |  |  |  |  |  |  | $ 1,463,680 | $ 1,632,582 | $ 1,528,963
Percentage |  |  |  |  |  |  |  |  | 39.30% | 41.40% | 39.90%
Long-Lived Assets | $ 455,622 |  |  |  | $ 481,474 |  |  |  | $ 455,622 | $ 481,474 | $ 353,767
Percentage | 46.20% |  |  |  | 48.00% |  |  |  | 46.20% | 48.00% | 42.60%
EMA |  |  |  |  |  |  |  |  |  |  |
Revenues from External Customers and Long-Lived Assets [Line Items] |  |  |  |  |  |  |  |  |  |  |
Sales |  |  |  |  |  |  |  |  | $ 1,385,245 | $ 1,397,308 | $ 1,424,498
Percentage |  |  |  |  |  |  |  |  | 37.20% | 35.50% | 37.10%
Long-Lived Assets | $ 336,577 |  |  |  | $ 312,668 |  |  |  | $ 336,577 | $ 312,668 | $ 280,549
Percentage | 34.10% |  |  |  | 31.20% |  |  |  | 34.10% | 31.20% | 33.80%
EMA | Sales Revenue, Goods, Net | Geographic Concentration Risk |  |  |  |  |  |  |  |  |  |  |
Revenues from External Customers and Long-Lived Assets [Line Items] |  |  |  |  |  |  |  |  |  |  |
Percentage of net sales to international customers to total sales |  |  |  |  |  |  |  |  | 10.00% |  |
Asia |  |  |  |  |  |  |  |  |  |  |
Revenues from External Customers and Long-Lived Assets [Line Items] |  |  |  |  |  |  |  |  |  |  |
Sales |  |  |  |  |  |  |  |  | $ 535,440 | $ 551,759 | $ 539,898
Percentage |  |  |  |  |  |  |  |  | 14.40% | 14.00% | 14.10%
Long-Lived Assets | $ 138,947 |  |  |  | $ 143,848 |  |  |  | $ 138,947 | $ 143,848 | $ 132,667
Percentage | 14.10% |  |  |  | 14.30% |  |  |  | 14.10% | 14.30% | 16.00%
Asia Pacific |  |  |  |  |  |  |  |  |  |  |
Revenues from External Customers and Long-Lived Assets [Line Items] |  |  |  |  |  |  |  |  |  |  |
Sales |  |  |  |  |  |  |  |  | $ 808,030 | $ 815,818 | $ 783,639
Asia Pacific | Sales Revenue, Goods, Net | Geographic Concentration Risk |  |  |  |  |  |  |  |  |  |  |
Revenues from External Customers and Long-Lived Assets [Line Items] |  |  |  |  |  |  |  |  |  |  |
Percentage of net sales to international customers to total sales |  |  |  |  |  |  |  |  | 10.00% |  |
Other |  |  |  |  |  |  |  |  |  |  |
Revenues from External Customers and Long-Lived Assets [Line Items] |  |  |  |  |  |  |  |  |  |  |
Sales |  |  |  |  |  |  |  |  | $ 343,769 | $ 358,048 | $ 342,340
Percentage |  |  |  |  |  |  |  |  | 9.10% | 9.10% | 8.90%
Long-Lived Assets | $ 55,278 |  |  |  | $ 64,846 |  |  |  | $ 55,278 | $ 64,846 | $ 63,161
Percentage | 5.60% |  |  |  | 6.50% |  |  |  | 5.60% | 6.50% | 7.60%
Other | Sales Revenue, Goods, Net | Geographic Concentration Risk |  |  |  |  |  |  |  |  |  |  |
Revenues from External Customers and Long-Lived Assets [Line Items] |  |  |  |  |  |  |  |  |  |  |
Percentage of net sales to international customers to total sales |  |  |  |  |  |  |  |  | 10.00% |  |
Germany | Sales Revenue, Goods, Net | Geographic Concentration Risk |  |  |  |  |  |  |  |  |  |  |
Revenues from External Customers and Long-Lived Assets [Line Items] |  |  |  |  |  |  |  |  |  |  |
Percentage of net sales to international customers to total sales |  |  |  |  |  |  |  |  | 7.00% | 6.00% | 7.00%

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