Equity Investments - Summarized Financial Information of Unconsolidated VIEs (Details) - USD ($) $ in Thousands	3 Months Ended
	Apr. 04, 2021	Mar. 29, 2020	Jan. 03, 2021
Schedule of Investments [Line Items]
Gross profit	$ 49,874	$ 29,184
Net income	(48,385)	(1,431)
Current assets	1,101,647		$ 790,315
Current liabilities	500,692		529,731
SunStrong Capital Holdings | Variable Interest Entity, Not Primary Beneficiary
Schedule of Investments [Line Items]
Revenue	33,097	29,464
Gross profit	1,214	(1,438)
Net income	(45,789)	$ 21,640
Current assets	92,493		93,752
Long-term assets	1,439,119		1,378,382
Current liabilities	47,859		48,126
Long-term liabilities	$ 1,168,705		$ 1,130,484