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CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($)
$ in Thousands
 6 Months Ended
Jun. 30, 2026
Jun. 30, 2025
Cash flows from operating activities:    
Net (loss) income $ (9,740) $ 8,843
Adjustments to reconcile net (loss) income to net cash provided by operating activities:    
Depreciation, amortization, and accretion 10,780 11,206
Stock-based compensation 4,115 3,956
Allowance for accounts receivable 571 2,454
Assets' impairment 4,142 0
(Loss) income from investments in other entities 2,354 (1,240)
Distributions from return on investments in other entities 669 2,620
Deferred income taxes (10,630) 0
Other 1,224 (949)
Changes in operating assets and liabilities:    
Accounts receivable [1] 23,718 (10,500)
Parts inventory (1,617) (2,710)
Prepaid expenses and other current and long-term assets 10,812 10,682
Accounts payable [2] (4,950) 3,526
Accrued expenses and other current and non-current liabilities (7,771) (6,083)
Net cash provided by operating activities 23,677 21,805
Cash flows from investing activities:    
Purchase of property, plant, and equipment (52,680) (33,409)
Distributions from return of investments in other entities 7,006 9,100
Cash paid, related to investments in other entities (13,482) (11,717)
Proceeds from disposal of property, plant and equipment 700 0
Net cash used in investing activities (58,456) (36,026)
Cash flows from financing activities:    
Proceeds from loans 128,382 40,000
Repayment of loans (49,542) (15,863)
Proceeds from redeemable preferred non-controlling interest and warrants issuance, net of issuance costs 124,558 0
Redemption of redeemable preferred non‑controlling interest (100,000) 0
Financing costs paid to other third parties (947) (1,250)
Proceeds from issuance of shares of Class A common stock under the ATM program, net 0 58
Repayment of principal portion of finance lease liabilities (678) (707)
Payment of preferred dividends (7,285) (5,234)
Distribution to non-redeemable non-controlling interest (65) (110)
Cash paid for taxes related to net share settlement of equity awards (1,372) (387)
Capital contribution from non-redeemable non-controlling interests 8,602 1,991
Net cash provided by financing activities 101,653 18,498
Net increase in cash, restricted cash, and cash equivalents 66,874 4,277
Cash, restricted cash, and cash equivalents, beginning of period 28,318 29,228
Cash, restricted cash, and cash equivalents, end of period 95,192 33,505
Supplemental disclosure of cash flow information    
Interest paid, net of $1,327 and $1,241 capitalized, respectively 14,690 13,304
Noncash investing and financing activities:    
Issuance of warrants in connection with redeemable preferred non-controlling interest financing 2,760 0
Purchase of property, plant and equipment included in accrued expenses and other current liabilities $ 19,941 $ 24,859
[1] Includes decrease (increase) from related parties of $12,302 and $(10,974) for the six months ended June 30, 2026 and 2025, respectively
[2] Includes (decrease) increase from related parties of $(6,236) and $356 for the six months ended June 30, 2026 and 2025, respectively