Business Segments, Customer Concentrations and Geographic Information (Details) $ in Thousands	3 Months Ended								12 Months Ended
	Dec. 31, 2020 USD ($)	Sep. 30, 2020 USD ($)	Jun. 30, 2020 USD ($)	Mar. 31, 2020 USD ($)	Dec. 31, 2019 USD ($)	Sep. 30, 2019 USD ($)	Jun. 30, 2019 USD ($)	Mar. 31, 2019 USD ($)	Dec. 31, 2020 USD ($) segment	Dec. 31, 2019 USD ($)	Dec. 31, 2018 USD ($)
Segment Reporting Information [Line Items]
Number of operating segments | segment									1
Net sales	$ 1,371,041	$ 1,354,023	$ 1,172,909	$ 1,152,616	$ 1,178,464	$ 1,083,917	$ 895,305	$ 894,964	$ 5,050,589	$ 4,052,650	$ 4,316,466
Property, plant and equipment, net	2,566,002				2,404,850				2,566,002	2,404,850
Property, plant and equipment, net					2,404,850					2,404,850
Japan
Segment Reporting Information [Line Items]
Net sales									1,152,641	1,061,265	1,156,797
Property, plant and equipment, net	172,520								172,520
Property, plant and equipment, net					177,936					177,936
Europe, Middle East and Africa
Segment Reporting Information [Line Items]
Net sales									848,301	625,592	605,932
Asia Pacific (excluding Japan)
Segment Reporting Information [Line Items]
Net sales									672,563	487,406	535,894
Total foreign countries
Segment Reporting Information [Line Items]
Net sales									2,673,505	2,174,263	2,298,623
Property, plant and equipment, net	2,559,377								2,559,377
Property, plant and equipment, net					2,398,746					2,398,746
United States
Segment Reporting Information [Line Items]
Net sales									2,377,084	1,878,387	$ 2,017,843
Property, plant and equipment, net	6,625								6,625
Property, plant and equipment, net					6,104					6,104
China
Segment Reporting Information [Line Items]
Property, plant and equipment, net	397,849								397,849
Property, plant and equipment, net					419,749					419,749
Korea
Segment Reporting Information [Line Items]
Property, plant and equipment, net	1,428,855								1,428,855
Property, plant and equipment, net					1,179,966					1,179,966
Malaysia
Segment Reporting Information [Line Items]
Property, plant and equipment, net	37,718								37,718
Property, plant and equipment, net					41,030					41,030
Philippines
Segment Reporting Information [Line Items]
Property, plant and equipment, net	187,108								187,108
Property, plant and equipment, net					215,941					215,941
Portugal
Segment Reporting Information [Line Items]
Property, plant and equipment, net	69,458								69,458
Property, plant and equipment, net					63,975					63,975
Taiwan
Segment Reporting Information [Line Items]
Property, plant and equipment, net	264,959								264,959
Property, plant and equipment, net					298,982					298,982
Other foreign countries
Segment Reporting Information [Line Items]
Property, plant and equipment, net	$ 910								$ 910
Property, plant and equipment, net					$ 1,167					$ 1,167
Sales | Product Concentration Risk
Segment Reporting Information [Line Items]
Concentration risk (as a percent)									100.00%	100.00%	100.00%
Customer One | Sales | Customer Concentration Risk
Segment Reporting Information [Line Items]
Concentration risk (as a percent)									14.50%		10.20%
Advanced Products
Segment Reporting Information [Line Items]
Net sales									$ 3,202,094	$ 2,110,815	$ 2,118,571
Mainstream Products
Segment Reporting Information [Line Items]
Net sales									$ 1,848,495	$ 1,941,835	$ 2,197,895
Communications (handheld devices, smartphones, tablets) | Sales | Product Concentration Risk
Segment Reporting Information [Line Items]
Concentration risk (as a percent)									41.00%	38.00%	44.00%
Consumer (connected home, set-top boxes, televisions, visual imaging, wearables) | Sales | Product Concentration Risk
Segment Reporting Information [Line Items]
Concentration risk (as a percent)									24.00%	18.00%	12.00%
Automotive, industrial and other (driver assist, infotainment, performance, safety) | Sales | Product Concentration Risk
Segment Reporting Information [Line Items]
Concentration risk (as a percent)									20.00%	27.00%	26.00%
Computing (datacenter, infrastructure, PC/laptop, storage) | Sales | Product Concentration Risk
Segment Reporting Information [Line Items]
Concentration risk (as a percent)									15.00%	17.00%	18.00%