Annual report pursuant to Section 13 and 15(d)

VIE Arrangements - Carrying Amounts and Classification of the VIEs' Assets and Liabilities Included in the Consolidated Balance Sheets (Details)

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VIE Arrangements - Carrying Amounts and Classification of the VIEs' Assets and Liabilities Included in the Consolidated Balance Sheets (Details)
$ in Thousands
12 Months Ended
Dec. 31, 2019
USD ($)
investment_fund
fund
Dec. 31, 2018
USD ($)
Dec. 31, 2017
USD ($)
Current assets:      
Cash $ 269,577 $ 226,625 $ 202,525
Restricted cash 93,504 77,626  
Accounts receivable, net 77,728 66,435  
Inventories 260,571 79,467  
Prepaid expenses and other current assets 25,984 8,563  
Total current assets 733,830 461,413  
Property and equipment, net 56,708 34,893  
Solar energy systems, net   3,820,017  
Other assets 408,403 335,685  
Total assets [1] 5,806,341 4,749,787  
Current liabilities:      
Accounts payable 223,356 131,278  
Distributions payable to noncontrolling interests and redeemable noncontrolling interests 16,062 15,847  
Accrued expenses and other liabilities 148,497 98,636  
Deferred revenue, current portion 77,643 47,407  
Deferred grants, current portion 8,093 7,885  
Non-recourse debt, current portion 35,348 35,484  
Total current liabilities 530,094 372,191  
Deferred revenue, net of current portion 651,856 544,218  
Deferred grants, net of current portion 218,568 221,739  
Non-recourse debt, net of current portion 1,980,107 1,466,438  
Other liabilities 141,401 48,210  
Total liabilities [1] $ 4,168,344 3,340,703  
Number of types of investment funds used by the company | investment_fund 3    
Variable Interest Entities      
Current assets:      
Cash $ 133,362 105,494  
Restricted cash 2,746 2,071  
Accounts receivable, net 21,956 18,539  
Inventories 15,721 0  
Prepaid expenses and other current assets 554 387  
Total current assets 174,339 126,491  
Solar energy systems, net   2,712,377  
Other assets 87,151 66,427  
Total assets 3,521,202 2,905,295  
Current liabilities:      
Accounts payable 11,531 12,136  
Distributions payable to noncontrolling interests and redeemable noncontrolling interests 16,012 15,797  
Accrued expenses and other liabilities 10,740 7,122  
Deferred revenue, current portion 38,265 29,102  
Deferred grants, current portion 1,011 982  
Non-recourse debt, current portion 4,901 4,217  
Total current liabilities 82,460 69,356  
Deferred revenue, net of current portion 443,873 367,818  
Deferred grants, net of current portion 27,023 28,247  
Non-recourse debt, net of current portion 201,575 186,494  
Other liabilities 19,633 8,843  
Total liabilities $ 774,564 $ 660,758  
Number of types of investment funds used by the company | fund 6    
Assets Leased to Others      
Current assets:      
Property and equipment, net $ 4,492,615    
Assets Leased to Others | Variable Interest Entities      
Current assets:      
Property and equipment, net $ 3,259,712    
[1]
The Company’s consolidated assets as of December 31, 2019 and 2018 include $3,521,202 and $2,905,295, 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 December 31, 2019 and 2018 were $3,259,712 and $2,712,377, respectively; cash as of December 31, 2019 and 2018 were $133,362 and $105,494, respectively; restricted cash as of December 31, 2019 and 2018 were $2,746 and $2,071, respectively; accounts receivable, net as of December 31, 2019 and 2018 were $21,956 and $18,539, respectively; inventories as of December 31, 2019 and December 31, 2018 of $15,721 and $0; prepaid expenses and other current assets as of December 31, 2019 and 2018 were $554 and $387, respectively and other assets as of December 31, 2019 and 2018 were $87,151 and $66,427, respectively. The Company’s consolidated liabilities as of December 31, 2019 and 2018 include $774,564 and $660,758, respectively, in liabilities of VIEs whose creditors have no recourse to the Company. These liabilities include accounts payable as of December 31, 2019 and 2018 of $11,531 and $12,136, respectively; distributions payable to noncontrolling interests and redeemable noncontrolling interests as of December 31, 2019 and 2018 of $16,012 and $15,797, respectively; accrued expenses and other liabilities as of December 31, 2019 and 2018 of $10,740 and $7,122, respectively; deferred revenue as of December 31, 2019 and 2018 of $482,138 and $396,920, respectively; deferred grants as of December 31, 2019 and 2018 of $28,034 and $29,229, respectively; non-recourse debt as of December 31, 2019 and 2018 of $206,476 and $190,711, respectively; and other liabilities as of December 31, 2019 and December 31, 2018 of $19,633 and $8,843, respectively.