Condensed Consolidated Statements of Cash Flows - USD ($) $ in Thousands		6 Months Ended
		Jul. 04, 2021		Jun. 28, 2020
Cash flows from operating activities:
Net income		$ 25,271		$ 16,260
Adjustments to reconcile net income to net cash used in operating activities:
Depreciation and amortization		5,817		33,810
Stock-based compensation		15,050		12,746
Non-cash interest expense		3,155		3,748
Equity in losses of unconsolidated investees		0		644
Gain on equity investments		(39,016)		(120,214)
Gain on retirement of convertible debt		0		(2,956)
Gain on sale of investments		(1,162)		0
Gain on business divestitures, net		(224)		(10,458)
Deferred income taxes		(1,637)		1,032
Other, net		(6,215)		3,995
Changes in operating assets and liabilities:
Accounts receivable		(2,909)		58,909
Contract assets		24,498		(2,869)
Inventories		1,825		(6,725)
Project assets		6,305		(11,905)
Prepaid expenses and other assets		5,180		28,038
Operating lease right-of-use assets		6,365		7,786
Advances to suppliers		(3,284)		12,029
Accounts payable and other accrued liabilities		(42,229)		(126,236)
Contract liabilities		(8,554)		(50,454)
Operating lease liabilities		(6,589)		(6,022)
Net cash used in operating activities		(18,353)		(158,842)
Cash flows from investing activities:
Purchases of property, plant, and equipment		(6,894)		(10,805)
Proceeds from sale of property, plant, and equipment		900		0
Cash paid for solar power systems		(635)		(2,647)
Cash received from sale of investments		1,200		0
Proceeds from business divestitures, net of de-consolidated cash		10,516		15,417
Proceeds from return of capital from equity investments		2,276		53,873
Net cash provided by investing activities		7,363		55,838
Cash flows from financing activities:
Proceeds from bank loans and other debt		95,396		121,498
Repayment of bank loans and other debt		(103,573)		(119,335)
Proceeds from issuance of non-recourse residential and commercial financing, net of issuance costs		0		10,644
Repayment of non-recourse residential and commercial financing debt		(9,798)		0
Repayment of convertible debt		(62,757)		(87,141)
Receipt of contingent asset of a prior business combination		0		2,234
Issuance of common stock to executive		2,998		0
Equity offering costs paid		0		(928)
Purchases of stock for tax withholding obligations on vested restricted stock		(6,453)		(8,381)
Net cash used in financing activities		(84,187)		(81,409)
Effect of exchange rate changes on cash, cash equivalents, and restricted cash		0		114
Net decrease in cash, cash equivalents, and restricted cash		(95,177)		(184,299)
Cash, cash equivalents, and restricted cash, Beginning of period		246,804		458,657
Cash, cash equivalents, and restricted cash, End of period		151,627		274,358
Reconciliation of cash, cash equivalents, and restricted cash to the unaudited condensed consolidated balance sheets:
Cash and cash equivalents		140,462		235,307
Restricted cash and cash equivalents, current portion		5,818	[1]	30,631
Restricted cash and cash equivalents, net of current portion		5,347	[1]	8,420
Total cash, cash equivalents, and restricted cash		151,627		274,358
Supplemental disclosure of cash flow information:
Costs of solar power systems funded by liabilities		0		1,716
Property, plant and equipment acquisitions funded by liabilities		1,174		5,452
Right-of-use assets obtained in exchange for lease obligations		11,528		13,424
Deconsolidation of right-of-use assets and lease obligations		3,340		0
Debt repaid in sale of commercial projects	[2]	5,585		0
Accounts payable balances reclassified to short-term debt		0		23,933
Assumption of liabilities in connection with business divestitures		0		9,085
Holdbacks in connection with business divestitures		0		7,199
Cash paid for interest		13,527		16,523
Cash paid for income taxes		$ 20,233		$ 11,701

[1] Amounts included in the "Restricted cash and cash equivalents, current portion" and "Restricted cash and cash equivalents, net of current portion" financial statement line items on our unaudited condensed consolidated balance sheets include cash balances set aside for various financial obligations including loans, distributions, letter of credit facilities, and other projects' related cash transactions

[2] Refer to Note 5. Business Divestitures for more details.