Consolidated Balance Sheets (Parenthetical) - USD ($) shares in Thousands, $ in Thousands		Mar. 31, 2019	Dec. 31, 2018
Allowance for doubtful accounts		$ 2,282	$ 2,228
Preferred stock, par value (in dollars per share)		$ 0.0001	$ 0.0001
Preferred stock, shares authorized		200,000	200,000
Preferred stock, shares issued		0	0
Preferred stock, shares outstanding		0	0
Common stock, par value (in dollars per share)		$ 0.0001	$ 0.0001
Common stock, shares authorized		2,000,000	2,000,000
Common stock, shares issued		114,739	113,149
Common stock, shares outstanding		114,739	113,149
Total assets	[1]	$ 4,939,682	$ 4,749,787
Solar energy systems, net		3,976,504	3,820,017
Cash		245,604	226,625
Restricted cash		64,182	77,626
Accounts receivable, net		67,522	66,435
Prepaid expenses and other current assets		9,568	8,563
Other assets		367,951	335,685
Total liabilities	[1]	3,499,955	3,340,703
Accounts payable		105,977	131,278
Distributions payable to noncontrolling interests and redeemable noncontrolling interests		15,628	15,847
Accrued expenses and other liabilities		103,764	98,636
Deferred revenue		693,461	591,625
Non-recourse debt		1,824,222	1,748,922
Other liabilities		84,068	48,210
Variable Interest Entities
Total assets		2,981,910	2,905,295
Solar energy systems, net		2,761,312	2,712,377
Cash		135,548	105,494
Restricted cash		969	2,071
Accounts receivable, net		16,988	18,539
Prepaid expenses and other current assets		386	387
Other assets		66,707	66,427
Total liabilities		701,595	660,758
Accounts payable		10,979	12,136
Distributions payable to noncontrolling interests and redeemable noncontrolling interests		15,545	15,797
Accrued expenses and other liabilities		7,315	7,122
Deferred revenue		438,765	396,920
Deferred grants		28,964	29,229
Non-recourse debt		189,294	190,711
Other liabilities		$ 10,733	$ 8,843

[1] The Company’s consolidated assets as of March 31, 2019 and December 31, 2018 include $2,981,910 and $2,905,295, respectively, in assets of variable interest entities (“VIEs”) that can only be used to settle obligations of the VIEs. These assets include solar energy systems, net, as of March 31, 2019 and December 31, 2018 of $2,761,312 and $2,712,377, respectively; cash as of March 31, 2019 and December 31, 2018 of $135,548 and $105,494, respectively; restricted cash as of March 31, 2019 and December 31, 2018 of $969 and $2,071, respectively; accounts receivable, net as of March 31, 2019 and December 31, 2018 of $16,988 and $18,539, respectively; prepaid expenses and other current assets as of March 31, 2019 and December 31, 2018 of $386 and $387, respectively; and other assets as of March 31, 2019 and December 31, 2018 of $66,707 and $66,427, respectively. The Company’s consolidated liabilities as of March 31, 2019 and December 31, 2018 include $701,595 and $660,758, respectively, in liabilities of VIEs whose creditors have no recourse to the Company. These liabilities include accounts payable as of March 31, 2019 and December 31, 2018 of $10,979 and $12,136, respectively; distributions payable to noncontrolling interests and redeemable noncontrolling interests as of March 31, 2019 and December 31, 2018 of $15,545 and $15,797, respectively; accrued expenses and other current liabilities as of March 31, 2019 and December 31, 2018 of $7,315 and $7,122, respectively; deferred revenue as of March 31, 2019 and December 31, 2018 of $438,765 and $396,920, respectively; deferred grants as of March 31, 2019 and December 31, 2018 of $28,964 and $29,229, respectively; non-recourse debt as of March 31, 2019 and December 31, 2018 of $189,294 and $190,711, respectively; and other liabilities as of March 31, 2019 and December 31, 2018 of $10,733 and $8,843, respectively.