Income Taxes (Details) - USD ($) $ in Thousands	3 Months Ended			9 Months Ended
	Sep. 27, 2020	Dec. 29, 2019	Sep. 29, 2019	Sep. 27, 2020	Sep. 29, 2019
Income Tax Disclosure [Abstract]
Provision for income taxes	$ (36,725)		$ (2,928)	$ (38,716)	$ (10,074)
Income (loss) before income taxes and equity in earnings (losses) of unconsolidated investees	146,405		$ 17,354	223,084	$ 136,775
Unrecognized tax benefits, income tax penalties and interest accrued	$ 8,200	$ 7,200		$ 8,200
Valuation allowance, deferred tax asset, increase (decrease), amount		$ (5,800)