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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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