CONSOLIDATED STATEMENTS OF OPERATIONS (Unaudited) - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2015	Sep. 30, 2014	Sep. 30, 2015	Sep. 30, 2014
Revenue:
Operating leases and incentives	$ 31,650	$ 21,612	$ 88,416	$ 63,040
Solar energy systems and product sales	50,950	34,464	116,551	75,378
Total revenue	82,600	56,076	204,967	138,418
Operating expenses:
Cost of operating leases and incentives	28,723	19,112	77,167	51,367
Cost of solar energy systems and product sales	46,468	30,235	106,422	66,043
Sales and marketing	45,382	23,445	104,284	53,207
Research and development	2,240	2,036	7,019	5,962
General and administrative	21,486	17,700	61,469	50,387
Amortization of intangible assets	1,051	575	2,644	1,693
Total operating expenses	145,350	93,103	359,005	228,659
Loss from operations	(62,750)	(37,027)	(154,038)	(90,241)
Interest expense, net	8,475	7,433	24,038	19,757
Loss on early extinguishment of debt			431
Other expenses	87	657	1,405	2,503
Loss before income taxes	(71,312)	(45,117)	(179,912)	(112,501)
Income tax expense (benefit)	903		(5,312)	(10,043)
Net loss	(72,215)	(45,117)	(174,600)	(102,458)
Net loss attributable to noncontrolling interests and redeemable noncontrolling interests	(69,447)	(29,903)	(161,377)	(58,292)
Net loss attributable to common stockholders	(2,768)	(15,214)	(13,223)	(44,166)
Deemed dividend to convertible preferred stockholders	(24,890)		(24,890)
Net loss available to common stockholders	$ (27,658)	$ (15,214)	$ (38,113)	$ (44,166)
Net loss per share available to common shareholders—basic and diluted	$ (0.41)	$ (0.64)	$ (0.96)	$ (1.98)
Weighted average shares used to compute net loss per share available to common stockholders—basic and diluted	67,732	23,943	39,612	22,282