Consolidated Balance Sheets - USD ($) $ in Thousands	Sep. 30, 2018	Dec. 31, 2017
Current assets
Cash and cash equivalents ($5,496 and $9,549, respectively)	$ 395,516	$ 103,828
Restricted cash ($3,252 and $7,969, respectively)	17,931	44,387
Short-term investments	4,494	26,816
Accounts receivable ($7,377 and $7,680, respectively)	41,485	30,317
Inventories, net	134,725	90,260
Deferred cost of revenue	66,009	92,488
Customer financing receivable ($5,496 and $5,209, respectively)	5,496	5,209
Prepaid expense and other current assets ($5,727 and $6,365, respectively)	32,876	26,676
Total current assets	698,532	419,981
Property, plant and equipment, net ($406,784 and $430,464, respectively)	471,074	497,789
Customer financing receivable, non-current ($68,535 and $72,677, respectively)	68,535	72,677
Restricted cash ($27,778 and $26,748, respectively)	30,779	32,397
Deferred cost of revenue, non-current	139,217	160,683
Other long-term assets ($4,702 and $3,767, respectively)	37,008	37,460
Total assets	1,445,145	1,220,987
Current liabilities
Accounts payable ($549 and $520, respectively)	59,818	48,582
Accrued warranty	17,975	16,811
Accrued other current liabilities ($1,145 and $2,378, respectively)	66,873	67,649
Deferred revenue and customer deposits ($786 and $786, respectively)	105,265	118,106
Current portion of debt ($18,498 and $18,446, respectively)	20,185	18,747
Current portion of debt from related parties ($1,737 and $1,389, respectively)	1,737	1,389
Total current liabilities	271,853	271,284
Preferred stock and warrant liabilities	0	9,825
Derivative liabilities ($1,826 and $5,060, respectively)	9,441	156,552
Deferred revenue and customer deposits ($8,894 and $9,482, respectively)	290,481	309,843
Long-term portion of debt ($293,593 and $306,499, respectively)	651,956	815,555
Long-term portion of debt from related parties ($34,765 and $35,551, respectively)	66,933	105,650
Other long-term liabilities ($1,656 and $1,226, respectively)	48,161	52,915
Total liabilities	1,338,825	1,721,624
Commitments and contingencies (Note 13)
Redeemable noncontrolling interest	56,446	58,154
Convertible redeemable preferred stock: 80,461,552 shares authorized at September 30, 2018 and December 31, 2017; no shares and 71,740,162 shares issued and outstanding at September 30, 2018 and December 31, 2017, respectively. Aggregate liquidation preference of $1,441,757 at December 31, 2017.	0	1,465,841
Stockholders’ deficit
Common stock: $0.0001 par value; Class A shares, 400,000,000 shares and no shares authorized at September 30, 2018 and December 31, 2017, respectively, and 20,865,308 shares and no shares issued and outstanding at September 30, 2018 and December 31, 2017, respectively; Class B shares, 400,000,000 shares and no shares authorized at September 30, 2018 and December 31, 2017, respectively, and 88,534,989 shares and no shares issued and outstanding at September 30, 2018 and December 31, 2017, respectively.	11	1
Additional paid-in capital	2,387,361	150,804
Accumulated other comprehensive income (loss)	272	(162)
Accumulated deficit	(2,472,619)	(2,330,647)
Total stockholders’ deficit	(84,975)	(2,180,004)
Noncontrolling interest	134,849	155,372
Total equity (deficit)	106,320	(1,966,478)
Total liabilities, convertible redeemable preferred stock and equity (deficit)	$ 1,445,145	$ 1,220,987