v3.25.0.1
Consolidated Statements of Cash Flows - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2024
Dec. 31, 2023
Dec. 31, 2022
Cash flows from operating activities:      
Net loss $ (83,689) $ (100,098) $ (59,590)
Adjustments to reconcile net loss to net cash provided by (used in) operating activities:      
Depreciation and amortization 44,737 45,674 54,674
Provision for credit losses and inventory 2,682 1,773 2,035
Stock-based compensation expense 10,803 23,336 26,473
Stock-based sales incentive charges 60,764 60,609 24,302
Change in fair value of derivative instruments 131 158 (517)
Amortization of debt issuance cost 4,775 1,571 58
Amortization of discounts and Section 30C tax credit (6,343) (6,279) (1,770)
Loss (gain) on disposal of property and equipment 468 863 12
Loss on extinguishment of debt 0 5,367 3,413
Asset impairments and other charges 380 634 0
Impairment of investments in equity securities 8,102 0 0
Loss from equity method investments 26,576 12,510 4,824
Non-cash lease expense 9,385 6,854 3,400
Deferred income taxes 2,630 (515) 173
Changes in operating assets and liabilities:      
Accounts and other receivables (8,177) (7,711) (1,072)
Inventory (57) (11,391) (9,318)
Prepaid expenses and other assets 6,033 510 (1,366)
Operating lease liabilities (6,087) (3,957) (3,314)
Accounts payable (18,784) 14,770 9,324
Deferred revenue 2,205 (883) (1,281)
Accrued liabilities and other 8,045 (18) 16,271
Net cash provided by operating activities 64,579 43,777 66,731
Cash flows from investing activities:      
Purchases of short-term investments (914,210) (491,253) (410,027)
Maturities and sales of short-term investments 950,644 479,288 401,639
Payment and deposits on equipment and manure rights for ADG RNG production projects (14,959) (20,348) (8,986)
Purchases of and deposits on property and equipment (64,997) (100,934) (44,518)
Grant proceeds for capital projects 952 1,947 0
Proceeds received for joint development and construction of station projects 6,980 3,224 0
Disbursements for loans receivable (10,398) (3,500) (2,310)
Proceeds from paydowns, maturities, and sales of loans receivable 310 2,256 1,116
Cash received from sale of certain assets of subsidiary, net 0 0 3,885
Investments in other entities (32,892) (73,450) (89,700)
Advance to DR JV 0 (5,500) 0
Proceeds from repayment of advance by DR JV 0 5,500 0
Proceeds from settlement of insurance claims 314 495 0
Proceeds from disposal of property and equipment 576 262 360
Net cash (used in) investing activities (77,680) (202,013) (148,541)
Cash flows from financing activities:      
Issuance of common stock 64 242 1,365
Payment of tax withholdings on net settlement of equity awards (340) (175) 0
Fees paid for lender and debt issuance costs (890) (9,484) (486)
Proceeds for Adopt-A-Port program 3,390 955 1,410
Repayment of proceeds for Adopt-A-Port program (1,934) (1,441) (1,163)
Proceeds from debt instruments 0 300,255 159,883
Proceeds from revolving line of credit 0 0 1,700
Repayments of borrowing under revolving line of credit 0 0 (1,700)
Repayments of debt instruments and finance lease obligations (2,234) (151,148) (49,999)
Payments of debt extinguishment costs 0 (83) (3,239)
Net cash provided by (used in) financing activities (1,944) 139,121 101,649
Effect of exchange rates on cash, cash equivalents and restricted cash (356) 128 (345)
Net increase (decrease) in cash, cash equivalents and restricted cash (15,401) (18,987) 19,494
Cash, cash equivalents and restricted cash, beginning of period 106,963 125,950 106,456
Cash, cash equivalents and restricted cash, end of period 91,562 106,963 125,950
Supplemental disclosure of cash flow information:      
Income taxes paid 60 77 68
Interest paid, net of $0, $2,587 and $2,057 capitalized, respectively $ 27,402 $ 16,360 $ 1,873

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