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v3.20.4

Segment and Geographic Area Information (Schedule of Net Sales 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
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |
Net sales | $ 527,781 | $ 512,869 | $ 410,864 | $ 559,417 | $ 534,445 | $ 555,817 | $ 563,417 | $ 536,616 | $ 2,010,931 | $ 2,190,295 | $ 2,289,675
Total assets | 1,933,875 |  |  |  | 1,885,132 |  |  |  | 1,933,875 | 1,885,132 |
Long-Lived Assets | 737,250 |  |  |  | 708,784 |  |  |  | 737,250 | 708,784 |
United States |  |  |  |  |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |
Net sales |  |  |  |  |  |  |  |  | 650,654 | 728,125 | 722,576
Total assets | 763,642 |  |  |  | 728,571 |  |  |  | 763,642 | 728,571 |
Long-Lived Assets | 312,586 |  |  |  | 275,646 |  |  |  | 312,586 | 275,646 |
China |  |  |  |  |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |
Net sales |  |  |  |  |  |  |  |  | 213,788 | 225,498 | 239,406
Singapore [Member] |  |  |  |  |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |
Long-Lived Assets | 271,135 |  |  |  | 287,276 |  |  |  | 271,135 | 287,276 |
International companies |  |  |  |  |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |
Total assets | 1,170,233 |  |  |  | 1,156,561 |  |  |  | 1,170,233 | 1,156,561 |
Europe, Middle East, Africa, India |  |  |  |  |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |
Net sales |  |  |  |  |  |  |  |  | 651,645 | 700,081 | 756,258
Asia Pacific, except China |  |  |  |  |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |
Net sales |  |  |  |  |  |  |  |  | 279,847 | 311,469 | 335,119
Other foreign |  |  |  |  |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |
Net sales |  |  |  |  |  |  |  |  | 214,997 | 225,122 | $ 236,316
Long-Lived Assets | $ 153,529 |  |  |  | $ 145,862 |  |  |  | $ 153,529 | $ 145,862 |

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