CONSOLIDATED BALANCE SHEETS (Unaudited) - USD ($) $ in Thousands		Jun. 30, 2015	Dec. 31, 2014
Current assets:
Cash and cash equivalents		$ 116,610	$ 152,154
Restricted cash		5,764	2,534
Accounts receivable (net of allowances for doubtful accounts of $1,045 and $703 as of June 30, 2015 and December 31, 2014, respectively)		49,619	43,189
Grants receivable			5,183
Inventories		37,804	23,914
Prepaid expenses and other current assets		16,698	9,560
Deferred tax assets, current		2,559	3,048
Total current assets		229,054	239,582
Restricted cash		7,390	6,012
Solar energy systems, net		1,695,728	1,480,223
Property and equipment, net		27,229	22,195
Intangible assets, net		24,808	13,111
Goodwill		87,555	51,786
Prepaid tax asset		142,785	109,381
Other assets		26,201	13,342
Total assets	[1]	2,240,750	1,935,632
Current liabilities:
Accounts payable		69,566	51,166
Distributions payable to noncontrolling interests and redeemable noncontrolling interests		6,463	6,764
Accrued expenses and other liabilities		42,833	25,445
Deferred revenue, current portion		51,929	44,398
Deferred grants, current portion		14,002	13,754
Capital lease obligation, current portion		3,928	1,593
Long-term debt, current portion		1,824	2,602
Lease pass-through financing obligation, current portion		3,321	5,161
Total current liabilities		193,866	150,883
Deferred revenue, net of current portion		510,346	467,726
Deferred grants, net of current portion		219,380	226,801
Capital lease obligation, net of current portion		7,210	5,761
Line of credit		140,024	48,597
Long-term debt, net of current portion		195,874	188,052
Lease pass-through financing obligation, net of current portion		203,392	180,224
Other liabilities		3,431	2,424
Deferred tax liabilities		145,344	112,597
Total liabilities	[1]	1,618,867	1,383,065
Redeemable noncontrolling interests		151,288	135,948
Stockholders’ equity:
Common stock, $0.0001 par value—authorized, 125,047 and 119,547 shares as of June 30, 2015 and December 31, 2014, respectively; issued and outstanding, 26,503 and 24,429 shares as of June 30, 2015 and December 31, 2014, respectively		2	2
Additional paid-in capital		411,890	383,860
Accumulated other comprehensive loss		1,425
Accumulated deficit		(69,458)	(59,003)
Total stockholders’ equity		343,864	324,864
Noncontrolling interests		126,731	91,755
Total equity		470,595	416,619
Total liabilities, redeemable noncontrolling interests and total equity		2,240,750	1,935,632
Convertible Preferred Stock
Stockholders’ equity:
Convertible preferred stock, $0.0001 par value—authorized, 57,028 shares as of June 30, 2015 and December 31, 2014, respectively; issued and outstanding, 54,841 and 54,841 shares as of June 30, 2015 and December 31, 2014, respectively; aggregate liquidation value of $305,883 as of June 30, 2015 and December 31, 2014, respectively		$ 5	$ 5

[1] The Company’s consolidated assets as of June 30, 2015 and December 31, 2014 include $1,202,608 (unaudited) and $986,878, respectively, in assets of variable interest entities, or VIEs, that can only be used to settle obligations of the VIEs. Solar energy systems, net, as of June 30, 2015 and December 31, 2014 were $1,113,088 (unaudited) and $942,655, respectively; cash and cash equivalents as of June 30, 2015 and December 31, 2014 were $72,983 (unaudited) and $29,099, respectively; restricted cash as of June 30, 2015 and December 31, 2014 were $729 (unaudited) and $593, respectively; accounts receivable, net as of June 30, 2015 and December 31, 2014 were $15,609 (unaudited) and $14,351. respectively; prepaid expenses and other current assets as of June 30, 2015 and December 31, 2014 were $199 (unaudited) and $180, respectively. The Company’s consolidated liabilities as of June 30, 2015 and December 31, 2014 include $504,377 (unaudited) and $474,348, respectively, in liabilities of VIEs whose creditors have no recourse to the Company. These liabilities include accounts payable as of June 30, 2015 and December 31, 2014 of $16,765 (unaudited) and $9,057, respectively; distributions payable to noncontrolling interests and redeemable noncontrolling interests as of June 30, 2015 and December 31, 2014 of $6,413 (unaudited) and $6,426, respectively; accrued expenses and other liabilities as of June 30, 2015 and December 31, 2014 of $162 (unaudited) and $340, respectively; deferred revenue as of June 30, 2015 and December 31, 2014 of $329,114 (unaudited) and $301,792, respectively; deferred grants as of June 30, 2015 and December 31, 2014 of $119,704 (unaudited) and $123,351, respectively; and long-term debt as of June 30, 2015 and December 31, 2014 of $32,219 (unaudited) and $33,382, respectively