Equity Investments - Consolidated VIEs (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jul. 04, 2021	Jun. 28, 2020	Jul. 04, 2021	Jun. 28, 2020	Jan. 03, 2021
Variable Interest Entity [Line Items]
Assets	$ 1,546,632		$ 1,546,632		$ 1,646,482
Solar Sail | Variable Interest Entity, Primary Beneficiary
Variable Interest Entity [Line Items]
Revenue	4,200	$ 2,800	7,800	$ 3,500
Assets	$ 73,700		$ 73,700