Equity Investments - Summarized Financial Information of Unconsolidated VIEs (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 27, 2020	Sep. 29, 2019	Sep. 27, 2020	Sep. 29, 2019	Dec. 29, 2019
Schedule of Investments [Line Items]
Gross loss	$ 37,140	$ 45,495	$ 91,976	$ 77,403
Net income	44,626	(15,017)	62,573	16,718
Current assets	861,328		861,328		$ 1,380,931
Current liabilities	754,298		754,298		898,409
SunStrong Capital Holdings | Variable Interest Entity, Not Primary Beneficiary
Schedule of Investments [Line Items]
Revenue	31,299	23,288	90,056	46,450
Gross loss	1,057	(11,189)	(5,839)	(12,398)
Net income	13,596	$ (9,162)	35,019	$ (5,906)
Current assets	89,684		89,684		225,576
Long-term assets	1,325,344		1,325,344		1,049,451
Current liabilities	48,280		48,280		125,601
Long-term liabilities	$ 1,085,962		$ 1,085,962		$ 847,365