Equity Investments - Equity Method Investments (Details) - USD ($) $ in Thousands	Apr. 04, 2021	Jan. 03, 2021
Schedule of Equity Method Investments [Line Items]
Equity investments with readily determinable fair value	$ 244,038	$ 614,148
Equity investments without readily determinable fair value:	801	801
Equity investments with fair value option	9,924	9,924
Equity method investments	580,143	624,873
Enphase Energy, Inc.
Schedule of Equity Method Investments [Line Items]
Equity investments with readily determinable fair value	$ 569,418	614,148
Owned shares, reclassified to current assets	2,000,000
Project entities
Schedule of Equity Method Investments [Line Items]
Equity investments without readily determinable fair value:	$ 122	122
Other Equity Investments Without Readily Determinable Fair Value
Schedule of Equity Method Investments [Line Items]
Equity investments without readily determinable fair value:	679	679
SunStrong Capital Holdings
Schedule of Equity Method Investments [Line Items]
Equity investments with fair value option	7,645	7,645
SunStrong Partners
Schedule of Equity Method Investments [Line Items]
Equity investments with fair value option	2,279	2,279
Total equity investment with fair value option
Schedule of Equity Method Investments [Line Items]
Equity investments with fair value option	$ 9,924	$ 9,924