Condensed Consolidated Statements of Cash Flows - USD ($) $ in Thousands	3 Months Ended
	Mar. 29, 2020	Mar. 31, 2019
Cash flows from operating activities:
Net loss	$ (2,138)	$ (104,565)
Adjustments to reconcile net loss to net cash used in operating activities:
Depreciation and amortization	16,892	24,190
Stock-based compensation	6,867	5,666
Non-cash interest expense	1,910	2,415
Equity in earnings of unconsolidated investees	(245)	(1,680)
Gain on equity investments	(49,152)	(33,000)
Gain on retirement of convertible debt	(2,956)	0
Gain on business divestiture	0	(6,114)
Deferred income taxes	(349)	2,048
Impairment of residential lease assets	289	9,226
Changes in operating assets and liabilities:
Accounts receivable	(17,880)	12,196
Contract assets	295	1,712
Inventories	(43,061)	(41,718)
Project assets	(8,881)	776
Prepaid expenses and other assets	18,635	11,727
Operating lease right-of-use assets	2,923	2,603
Long-term financing receivables, net	0	(1,611)
Advances to suppliers	8,936	13,055
Accounts payable and other accrued liabilities	(92,599)	(28,819)
Contract liabilities	(16,130)	(14,578)
Operating lease liabilities	(2,849)	(2,559)
Net cash used in operating activities	(179,493)	(149,030)
Cash flows from investing activities:
Purchases of property, plant and equipment	(6,213)	(6,548)
Cash paid for solar power systems	(610)	(27,600)
Proceeds from business divestiture	0	9,677
Proceeds from sale of equity investment and partial return of capital by an unconsolidated investee	46,149	0
Net cash provided by (used in) investing activities	39,326	(24,471)
Cash flows from financing activities:
Proceeds from bank loans and other debt	76,544	67,979
Repayment of bank loans and other debt	(65,730)	(58,372)
Proceeds from issuance of non-recourse residential financing, net of issuance costs	0	22,255
Contributions from noncontrolling interests and redeemable noncontrolling interests attributable to residential projects	0	20,987
Proceeds from issuance of non-recourse power plant and commercial financing, net of issuance costs	9,754	0
Cash paid for repurchase of convertible debt	(87,141)	0
Settlement of contingent consideration arrangement, net of cash received	423
Settlement of contingent consideration arrangement, net of cash received		(2,448)
Purchases of stock for tax withholding obligations on vested restricted stock	(6,914)	(3,872)
Equity offering costs paid	(928)	0
Net cash provided by (used in) financing activities	(73,992)	46,529
Effect of exchange rate changes on cash, cash equivalents, restricted cash and restricted cash equivalents	(216)	112
Net decrease in cash, cash equivalents, restricted cash and restricted cash equivalents	(214,375)	(126,860)
Cash, cash equivalents, restricted cash and restricted cash equivalents, beginning of period	458,657	363,763
Cash, cash equivalents, restricted cash and restricted cash equivalents, end of period	244,282	236,903
Non-cash transactions:
Costs of solar power systems sourced from existing inventory	0	16,406
Costs of solar power systems funded by liabilities	1,184	4,553
Property, plant and equipment acquisitions funded by liabilities	2,385	10,792
Contractual obligations satisfied by inventory	975	0
Right-of-use assets obtained in exchange for lease obligations	12,461	81,525
Aged supplier financing balances reclassified from accounts payable to short-term debt	$ 5,000	$ 0