Consolidated Statements of Operations (Unaudited) - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2017	Sep. 30, 2016	Sep. 30, 2017	Sep. 30, 2016
Revenue:
Operating leases and incentives	$ 58,462	$ 43,150	$ 171,897	$ 123,084
Solar energy systems and product sales	82,829	68,883	211,359	210,230
Total revenue	141,291	112,033	383,256	333,314
Operating expenses:
Cost of operating leases and incentives	49,232	40,770	140,682	117,478
Cost of solar energy systems and product sales	69,588	57,264	179,957	176,376
Sales and marketing	37,298	40,192	101,758	127,096
Research and development	3,936	2,458	10,642	7,294
General and administrative	27,925	21,331	77,776	68,193
Amortization of intangible assets	1,052	1,051	3,154	3,154
Total operating expenses	189,031	163,066	513,969	499,591
Loss from operations	(47,740)	(51,033)	(130,713)	(166,277)
Interest expense, net	17,707	13,957	49,586	38,535
Other expenses (income), net	(94)	42	589	(460)
Loss before income taxes	(65,353)	(65,032)	(180,888)	(204,352)
Income tax expense	14,834	9,936	37,625	13,146
Net loss	(80,187)	(74,968)	(218,513)	(217,498)
Net loss attributable to noncontrolling interests and redeemable noncontrolling interests	(107,969)	(91,846)	(284,144)	(280,153)
Net income available to common stockholders	$ 27,782	$ 16,878	$ 65,631	$ 62,655
Net income per share available to common stockholders
Basic (in dollars per share)	$ 0.26	$ 0.16	$ 0.62	$ 0.61
Diluted (in dollars per share)	$ 0.25	$ 0.16	$ 0.61	$ 0.60
Weighted average shares used to compute net income per share available to common stockholders
Weighted average shares used to compute net income per share attributable to common stockholders, basic (in shares)	105,783	102,707	105,060	101,988
Weighted average shares used to compute net income per share attributable to common stockholders, diluted (in shares)	109,598	105,092	107,893	104,698