Condensed Consolidated Statements of Cash Flows (Unaudited) - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020
Cash flows from operating activities:
Net income (loss)	$ (88,202)	$ (129,620)
Adjustments to reconcile net loss to net cash used in operating activities:
Depreciation and amortization	26,808	25,852
Non-cash lease expense	4,520	2,759
Impairment of equity method investment	0	4,236
Revaluation of derivative contracts	462	(72)
Stock-based compensation expense	36,343	41,652
Loss on extinguishment of debt	0	14,098
Amortization of debt issuance costs and premium, net	1,900	(470)
Changes in operating assets and liabilities:
Accounts receivable	41,718	(11,531)
Contract assets	(15,311)	(256)
Inventories	(21,026)	(3,532)
Deferred cost of revenue	4,984	(9,995)
Customer financing receivable	2,636	2,490
Prepaid expenses and other current assets	7,656	7,314
Other long-term assets	(1,410)	(3,574)
Accounts payable	29,449	8,831
Accrued warranty	(2,565)	(159)
Accrued expenses and other current liabilities	(16,225)	13,509
Operating lease right-of-use assets and operating lease liabilities	(5,140)	(2,973)
Deferred revenue and customer deposits	(43,428)	2,907
Other long-term liabilities	1,529	(1,701)
Net cash used in operating activities	(35,302)	(40,235)
Cash flows from investing activities:
Purchase of property, plant and equipment	(34,461)	(19,560)
Net cash used in investing activities	(34,461)	(19,560)
Cash flows from financing activities:
Proceeds from issuance of debt	0	70,000
Proceeds from issuance of debt to related parties	0	30,000
Repayment of debt	(7,838)	(82,248)
Repayment of debt - related parties	0	(2,105)
Debt issuance costs	0	(3,371)
Proceeds from financing obligations	7,123	0
Repayment of financing obligations	(6,387)	(5,111)
Distributions to noncontrolling interests and redeemable noncontrolling interests	(4,762)	(5,815)
Proceeds from issuance of common stock	65,668	5,186
Net cash provided by financing activities	53,804	6,536
Effect of exchange rate changes on cash, cash equivalent and restricted cash	(223)	0
Net decrease in cash, cash equivalents, and restricted cash	(16,182)	(53,259)
Beginning of period	416,710	377,388
End of period	400,528	324,129
Supplemental disclosure of cash flow information:
Cash paid during the period for interest	27,219	34,487
Operating cash flows from operating leases	6,132	4,482
Operating cash flows from financing leases	259	20
Cash paid during the period for income taxes	185	224
Non-cash investing and financing activities:
Increase in recourse debt, non-current upon adoption of ASU 2020-06, net (Note 2)	121,491	0
Liabilities recorded for property, plant and equipment	11	494
Operating lease liabilities arising from obtaining right-of-use assets upon adoption of new lease guidance	0	39,775
Recognition of operating lease right-of-use asset during the year-to-date period	40,762	3,333
Recognition of financing lease right-of-use asset during the year-to-date period	1,335	251
Conversion of 5% debt financing into additional paid-in capital	0	41,130
Accrued distributions to equity investors	0	2
Accrued debt issuance costs	0	1,220
Adjustment of embedded derivative related to debt extinguishment	$ 0	$ 24,071