Income Taxes (Details) - USD ($) $ in Thousands	3 Months Ended	9 Months Ended
Sep. 26, 2020	Sep. 28, 2019	Sep. 26, 2020	Sep. 28, 2019
Income Tax Disclosure [Abstract]
Effective Income Tax Rate Reconciliation, at Federal Statutory Income Tax Rate, Percent			21.00%
Provision (benefit) at statutory tax rate	$ 44,332	$ 25,687	$ 97,218	$ (59,110)
State taxes (benefit), net of federal benefit	(268)	(1,030)	3,823	(8,534)
International effective tax rate differential	1,731	4,774	2,646	12,991
U.S. tax (benefit) on foreign earnings	4,602	(6,860)	7,768	3,020
Changes in tax accruals	2,870	2,954	10,465	3,874
Tax credits	(7,424)	1,834	(8,935)	(2,167)
Non-deductible portion of impairment of goodwill	0	0	0	76,153
Other	(1,136)	1,981	468	4,651
Provision for income taxes	$ 44,707	$ 29,340	$ 113,453	$ 30,878

U.S Tax on foreign earnings

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Percentage of domestic federal statutory tax rate applicable to pretax income (loss).

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Amount of current income tax expense (benefit) and deferred income tax expense (benefit) pertaining to continuing operations.

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