Condensed Consolidated Statements of Cash Flows - USD ($) $ in Thousands		3 Months Ended		12 Months Ended
		Apr. 04, 2021	Mar. 29, 2020	Jan. 03, 2021
Cash flows from operating activities:
Net loss		$ (49,498)	$ (2,138)
Adjustments to reconcile net loss to net cash used in operating activities:
Depreciation and amortization		2,849	16,892
Stock-based compensation expense		5,437	6,867
Non-cash interest expense		1,505	1,910
Equity in earnings of unconsolidated investees		0	(245)
Loss (gain) on equity investments with readily determinable fair value		44,730	(49,152)
Gain on retirement of convertible debt		0	(2,956)
Gain on sale of investments		(1,162)	0
Deferred income taxes		(3,901)	(349)
Other, net		(5,280)	289
Changes in operating assets and liabilities:
Accounts receivable		4,114	(17,880)
Contract assets		487	295
Inventories		(8,271)	(43,061)
Project assets		9,197	(8,881)
Prepaid expenses and other assets		1,429	18,635
Operating lease right-of-use assets		2,875	2,923
Advances to suppliers		(3,852)	8,936
Accounts payable and other accrued liabilities		(24,152)	(92,599)
Contract liabilities		(13,461)	(16,130)
Operating lease liabilities		(3,429)	(2,849)
Net cash used in operating activities		(40,383)	(179,493)
Cash flows from investing activities:
Purchases of property, plant and equipment		(1,964)	(6,213)
Cash paid for solar power systems		(635)	(610)
Cash received from sale of investments		1,200	0
Proceeds from sale of distribution rights of debt refinancing		0	46,149
Net cash provided by (used in) investing activities		(1,399)	39,326
Cash flows from financing activities:
Proceeds from bank loans and other debt		71,323	76,544
Repayment of bank loans and other debt		(35,076)	(65,730)
Proceeds from issuance of non-recourse residential and commercial financing, net of issuance costs		0	9,754
Repayment of non-recourse residential and commercial financing		(9,713)	0
Cash paid for repurchase of convertible debt		0	(87,141)
Receipt of contingent asset of a prior business combination		0	423
Equity offering costs paid		0	(928)
Purchases of stock for tax withholding obligations on vested restricted stock		(2,118)	(6,914)
Net cash provided by financing activities		24,416	(73,992)
Effect of exchange rate changes on cash, cash equivalents, restricted cash and restricted cash equivalents		0	(216)
Net decrease in cash, cash equivalents, restricted cash and restricted cash equivalents		(17,367)	(214,375)
Cash, cash equivalents, restricted cash and restricted cash equivalents, beginning of period	[1]	246,804	458,657	$ 458,657
Cash, cash equivalents, restricted cash and restricted cash equivalents, end of period	[1]	229,437	244,282	$ 246,804
Non-cash transactions:
Costs of solar power systems funded by liabilities		0	1,184
Property, plant and equipment acquisitions funded by liabilities		1,647	2,385
Right-of-use assets obtained in exchange for lease obligations		11,528	12,461
Accounts payable balances reclassified to short-term debt		0	5,000
Contractual obligations satisfied by inventory		$ 0	$ 975

[1] The "Cash, cash equivalents, restricted cash and restricted cash equivalents" balance consisted of "cash and cash equivalents", "restricted cash and cash equivalents, current portion" and "restricted cash and cash equivalents, net of current portion" financial statement line items on the condensed consolidated balance sheets for the respective periods.