Income Taxes - Narrative (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jul. 05, 2020	Jun. 30, 2019	Jul. 05, 2020	Jun. 30, 2019
Income Tax Disclosure [Abstract]
Income Tax Expense	$ 2,580	$ 6,279	$ 4,114	$ 7,800
Income (Loss) from Continuing Operations before Equity Method Investments, Income Taxes, Noncontrolling Interest	7,289	$ 35,778	(93,344)	$ 44,358
Decrease in Unrecognized Tax Benefits is Reasonably Possible	14,700		14,700
DeferredPayrollTaxesUnderCARESAct			$ 1,400
Effective income tax rate, percent			(4.40%)	17.60%
Effective Income Tax Rate Reconciliation, Nondeductible Expense, Impairment Losses, Percent			17.80%
Unrecognized tax benefits, period decrease			$ 400
Unrecognized tax benefits	$ 25,100		25,100
Decrease in deferred tax assets			2,800
IncreaseDecreaseInCARESActDefferedPayrollTaxes			$ 4,000