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Variable Interest Entities And Equity Method Investments - Schedule of Variable Interest Entity Financial Information (Details) - USD ($) $ in Thousands | Mar. 31, 2024 | Dec. 31, 2023 | Mar. 31, 2023 | Dec. 31, 2022
--- | --- | --- | --- | ---
Current assets: |  |  |  |  |  |  |
Cash and cash equivalents | [1] | $ 77,681 |  | $ 79,271 |  |  |
Accounts receivable, net |  | 146,836 | [1] | 153,362 | [1] | $ 130,940 | $ 174,009
Costs and estimated earnings in excess of billings |  | 652,428 | [1] | 636,163 | [1] | $ 497,762 | $ 576,363
Prepaid expenses and other current assets |  | 9,779 |  | 10,697 |  |  |
Total current assets | [1] | 1,126,472 |  | 1,128,471 |  |  |
Property and equipment, net | [1] | 17,170 |  | 17,395 |  |  |
Energy assets, net | [1] | 1,788,569 |  | 1,689,424 |  |  |
Operating lease assets | [1] | 69,348 |  | 58,586 |  |  |
Restricted cash, non-current portion | [1] | 12,553 |  | 12,094 |  |  |
Other assets | [1] | 104,318 |  | 89,735 |  |  |
Total assets | [1] | 3,803,266 |  | 3,713,776 |  |  |
Current liabilities: |  |  |  |  |  |  |
Current portions of long-term debt and financing lease liabilities | [1] | 539,201 |  | 322,247 |  |  |
Accounts payable | [1] | 437,240 |  | 402,752 |  |  |
Accrued expenses and other current liabilities | [1] | 109,954 |  | 108,831 |  |  |
Current portions of operating lease liabilities | [1] | 14,220 |  | 13,569 |  |  |
Total current liabilities | [1] | 1,162,280 |  | 901,471 |  |  |
Long-term debt and financing lease liabilities, net of current portion, unamortized discount and debt issuance costs | [1] | 1,011,576 |  | 1,170,075 |  |  |
Long-term operating lease liabilities, net of current portion | [1] | 50,710 |  | 42,258 |  |  |
Other liabilities | [1] | 88,619 |  | 82,714 |  |  |
Variable Interest Entity, Primary Beneficiary |  |  |  |  |  |  |
Current assets: |  |  |  |  |  |  |
Cash and cash equivalents |  | 8,085 |  | 21,879 |  |  |
Accounts receivable, net |  | 4,645 |  | 1,977 |  |  |
Costs and estimated earnings in excess of billings |  | 15,399 |  | 14,071 |  |  |
Prepaid expenses and other current assets |  | 3,190 |  | 3,782 |  |  |
Total current assets |  | 31,319 |  | 41,709 |  |  |
Property and equipment, net |  | 0 |  | 267 |  |  |
Energy assets, net |  | 157,162 |  | 252,912 |  |  |
Operating lease assets |  | 5,651 |  | 17,656 |  |  |
Restricted cash, non-current portion |  | 73 |  | 73 |  |  |
Other assets |  | 547 |  | 84 |  |  |
Total assets |  | 194,752 |  | 312,701 |  |  |
Current liabilities: |  |  |  |  |  |  |
Current portions of long-term debt and financing lease liabilities |  | 2,180 |  | 134,617 |  |  |
Accounts payable |  | 15,346 |  | 7,930 |  |  |
Accrued expenses and other current liabilities |  | 5,131 |  | 23,021 |  |  |
Current portions of operating lease liabilities |  | 233 |  | 7,086 |  |  |
Total current liabilities |  | 22,890 |  | 172,654 |  |  |
Long-term debt and financing lease liabilities, net of current portion, unamortized discount and debt issuance costs |  | 16,754 |  | 17,167 |  |  |
Long-term operating lease liabilities, net of current portion |  | 5,933 |  | 8,886 |  |  |
Other liabilities |  | 301 |  | 356 |  |  |
Total VIE liabilities |  | 45,878 |  | 199,063 |  |  |
Variable Interest Entity, Primary Beneficiary | Investment Funds |  |  |  |  |  |  |
Current assets: |  |  |  |  |  |  |
Cash and cash equivalents |  | 1,556 |  | 5,099 |  |  |
Accounts receivable, net |  | 0 |  | 0 |  |  |
Costs and estimated earnings in excess of billings |  | 1,169 |  | 662 |  |  |
Prepaid expenses and other current assets |  | 26 |  | 33 |  |  |
Total current assets |  | 2,751 |  | 5,794 |  |  |
Property and equipment, net |  | 0 |  | 0 |  |  |
Energy assets, net |  | 77,768 |  | 79,104 |  |  |
Operating lease assets |  | 4,708 |  | 4,748 |  |  |
Restricted cash, non-current portion |  | 73 |  | 73 |  |  |
Other assets |  | 10 |  | 10 |  |  |
Total assets |  | 85,310 |  | 89,729 |  |  |
Current liabilities: |  |  |  |  |  |  |
Current portions of long-term debt and financing lease liabilities |  | 2,180 |  | 2,190 |  |  |
Accounts payable |  | 1,406 |  | 1,440 |  |  |
Accrued expenses and other current liabilities |  | 223 |  | 241 |  |  |
Current portions of operating lease liabilities |  | 138 |  | 133 |  |  |
Total current liabilities |  | 3,947 |  | 4,004 |  |  |
Long-term debt and financing lease liabilities, net of current portion, unamortized discount and debt issuance costs |  | 16,754 |  | 17,167 |  |  |
Long-term operating lease liabilities, net of current portion |  | 5,036 |  | 5,063 |  |  |
Other liabilities |  | 301 |  | 356 |  |  |
Total VIE liabilities |  | 26,038 |  | 26,590 |  |  |
Variable Interest Entity, Primary Beneficiary | Other VIEs |  |  |  |  |  |  |
Current assets: |  |  |  |  |  |  |
Cash and cash equivalents |  | 6,529 |  | 16,780 |  |  |
Accounts receivable, net |  | 4,645 |  | 1,977 |  |  |
Costs and estimated earnings in excess of billings |  | 14,230 |  | 13,409 |  |  |
Prepaid expenses and other current assets |  | 3,164 |  | 3,749 |  |  |
Total current assets |  | 28,568 |  | 35,915 |  |  |
Property and equipment, net |  | 0 |  | 267 |  |  |
Energy assets, net |  | 79,394 |  | 173,808 |  |  |
Operating lease assets |  | 943 |  | 12,908 |  |  |
Restricted cash, non-current portion |  | 0 |  | 0 |  |  |
Other assets |  | 537 |  | 74 |  |  |
Total assets |  | 109,442 |  | 222,972 |  |  |
Current liabilities: |  |  |  |  |  |  |
Current portions of long-term debt and financing lease liabilities |  | 0 |  | 132,427 |  |  |
Accounts payable |  | 13,940 |  | 6,490 |  |  |
Accrued expenses and other current liabilities |  | 4,908 |  | 22,780 |  |  |
Current portions of operating lease liabilities |  | 95 |  | 6,953 |  |  |
Total current liabilities |  | 18,943 |  | 168,650 |  |  |
Long-term debt and financing lease liabilities, net of current portion, unamortized discount and debt issuance costs |  | 0 |  | 0 |  |  |
Long-term operating lease liabilities, net of current portion |  | 897 |  | 3,823 |  |  |
Other liabilities |  | 0 |  | 0 |  |  |
Total VIE liabilities |  | $ 19,840 |  | $ 172,473 |  |  |
[1] | Includes restricted assets of consolidated variable interest entities (“VIEs”) at March 31, 2024 and December 31, 2023 of $194,752 and $312,701, respectively. Includes liabilities of consolidated VIEs at March 31, 2024 and December 31, 2023 of $45,878 and 199,063, respectively. See Note 13.

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