VIE Arrangements - Carrying Amounts and Classification of the VIEs' Assets and Liabilities Included in the Consolidated Balance Sheets (Details) - USD ($) $ in Thousands |
Jun. 30, 2018 |
Dec. 31, 2017 |
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|---|---|---|---|---|---|
| Current assets: | |||||
| Cash | $ 215,706 | $ 202,525 | |||
| Restricted cash | 54,549 | 39,265 | |||
| Accounts receivable, net | 123,334 | 112,069 | |||
| Prepaid expenses and other current assets | 9,114 | 9,202 | |||
| Total current assets | 484,007 | 468,573 | |||
| Solar energy systems, net | 3,437,822 | 3,161,570 | |||
| Other assets | 244,841 | 194,754 | |||
| Total assets | [1] | 4,299,368 | 3,963,136 | ||
| Current liabilities: | |||||
| Accounts payable | 85,104 | 115,193 | |||
| Distributions payable to noncontrolling interests and redeemable noncontrolling interests | 15,063 | 13,583 | |||
| Accrued expenses and other liabilities | 98,294 | 97,230 | |||
| Deferred revenue, current portion | 45,194 | 42,609 | |||
| Deferred grants, current portion | 8,173 | 8,193 | |||
| Non-recourse debt, current portion | 24,571 | 21,529 | |||
| Total current liabilities | 322,493 | 311,145 | |||
| Deferred revenue, net of current portion | 534,848 | 522,243 | |||
| Deferred grants, net of current portion | 223,019 | 227,519 | |||
| Non-recourse debt, net of current portion | 1,226,038 | 1,026,416 | |||
| Other liabilities | 39,691 | 42,743 | |||
| Total liabilities | [1] | 2,924,118 | 2,598,819 | ||
| Variable Interest Entities | |||||
| Current assets: | |||||
| Cash | 90,445 | 118,352 | |||
| Restricted cash | 1,044 | 2,699 | |||
| Accounts receivable, net | 70,108 | 57,402 | |||
| Prepaid expenses and other current assets | 465 | 917 | |||
| Total current assets | 162,062 | 179,370 | |||
| Solar energy systems, net | 2,627,741 | 2,385,329 | |||
| Other assets | 8,730 | 3,679 | |||
| Total assets | 2,798,533 | 2,568,378 | |||
| Current liabilities: | |||||
| Accounts payable | 17,104 | 15,929 | |||
| Distributions payable to noncontrolling interests and redeemable noncontrolling interests | 15,013 | 13,526 | |||
| Accrued expenses and other liabilities | 6,260 | 5,200 | |||
| Deferred revenue, current portion | 30,410 | 28,695 | |||
| Deferred grants, current portion | 1,016 | 1,021 | |||
| Non-recourse debt, current portion | 2,140 | 11,179 | |||
| Total current liabilities | 71,943 | 75,550 | |||
| Deferred revenue, net of current portion | 389,830 | 381,066 | |||
| Deferred grants, net of current portion | 28,748 | 29,385 | |||
| Non-recourse debt, net of current portion | 194,044 | 190,106 | |||
| Other liabilities | 9,454 | 1,848 | |||
| Total liabilities | $ 694,019 | $ 677,955 | |||
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