Income Taxes (Details) - USD ($) $ in Thousands	3 Months Ended			6 Months Ended
	Jun. 29, 2019	Mar. 30, 2019	Jun. 30, 2018	Jun. 29, 2019	Jun. 30, 2018
Income Taxes [Abstract]
Increase in liabilities for unrecognized tax benefits				$ 4,784
TCJA income tax expense [Abstract]
TCJA tax on unremitted foreign earnings			$ 12,000
Income Tax Uncertainties [Abstract]
Additional expected repatriation	$ 100,000
Cash repatriated during the current period	73,590
Repatriation taxes paid	20,479
Future cash repatriation [Abstract]
Future cash repatriation next fiscal quarter	104,000			104,000
Taxes associated with future cash repatriation next fiscal quarter	15,000			15,000
Tax expense on tax-basis gain	7,554			7,554
Remeasurement of Repatriation Deferred Tax Liability [Member]
Effect on Income Tax Expense (Benefit) [Line Items]
Deferred other tax expense (benefit)	$ 48		9,006	$ 633	$ 7,690
Remeasurement of Deferred Tax Liability Debt Extinguishment [Member]
Effect on Income Tax Expense (Benefit) [Line Items]
Deferred other tax expense (benefit)		$ 1,312	$ 33,963