Consolidated Statements of Operations - USD ($) shares in Thousands, $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Revenue:
Operating leases and incentives	$ 105,353	$ 61,150	$ 21,688
Solar energy system and product sales	29,814	3,032	3,570
Total revenue	135,167	64,182	25,258
Operating expenses:
Cost of revenue—operating leases and incentives	150,796	131,213	67,984
Cost of revenue—solar energy system and product sales	23,185	1,762	1,997
Sales and marketing	41,436	48,078	21,869
Research and development	2,979	3,901	1,892
General and administrative	81,802	92,664	78,899
Amortization of intangible assets	901	13,172	14,911
Impairment of goodwill and intangible assets	36,601	4,506
Total operating expenses	337,700	295,296	187,552
Loss from operations	(202,533)	(231,114)	(162,294)
Interest expense	34,008	12,568	9,323
Other (income) expense	(1,437)	(154)	1,372
Loss before income taxes	(235,104)	(243,528)	(172,989)
Income tax expense (benefit)	7,433	9,737	(7,070)
Net loss	(242,537)	(253,265)	(165,919)
Net loss attributable to non-controlling interests and redeemable non-controlling interests	(260,523)	(266,345)	(137,036)
Net income available (loss attributable) to common stockholders	$ 17,986	$ 13,080	$ (28,883)
Net income available (loss attributable) per share to common stockholders:
Basic	$ 0.17	$ 0.12	$ (0.35)
Diluted	$ 0.16	$ 0.12	$ (0.35)
Weighted-average shares used in computing net income available (loss attributable) per share to common stockholders:
Basic	108,190	106,088	83,446
Diluted	112,538	109,858	83,446