CONSOLIDATED STATEMENTS OF OPERATIONS (Unaudited) - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2015	Jun. 30, 2014
Revenue:
Operating leases and incentives	$ 34,458	$ 22,987	$ 56,766	$ 41,428
Solar energy systems and product sales	38,232	28,952	65,601	40,914
Total revenue	72,690	51,939	122,367	82,342
Operating expenses:
Cost of operating leases and incentives	27,067	17,359	48,444	32,255
Cost of solar energy systems and product sales	34,624	25,333	59,954	35,808
Sales and marketing	33,976	17,173	58,902	29,762
Research and development	2,492	1,999	4,779	3,926
General and administrative	19,677	20,037	39,983	32,687
Amortization of intangible assets	1,051	655	1,593	1,118
Total operating expenses	118,887	82,556	213,655	135,556
Loss from operations	(46,197)	(30,617)	(91,288)	(53,214)
Interest expense, net	8,433	6,662	15,563	12,324
Loss on early extinguishment of debt	431		431
Other expenses	1,019	1,386	1,318	1,846
Loss before income taxes	(56,080)	(38,665)	(108,600)	(67,384)
Income tax benefit	(6,215)	(5,917)	(6,215)	(10,043)
Net loss	(49,865)	(32,748)	(102,385)	(57,341)
Net loss attributable to noncontrolling interests and redeemable noncontrolling interests	(57,405)	(15,517)	(91,930)	(28,389)
Net income (loss) attributable to common stockholders	7,540	(17,231)	(10,455)	(28,952)
Less: Net income allocated to participating securities	$ (7,540)
Net income (loss) available to common stockholders		$ (17,231)	$ (10,455)	$ (28,952)
Net income (loss) per share available to common shareholders—basic and diluted		$ (0.72)	$ (0.41)	$ (1.35)
Weighted average shares used to compute net loss per share available to common stockholders—basic and diluted	26,215	23,827	25,322	21,437