v3.26.3
Condensed Consolidated Statements of Cash Flows - USD ($)
$ in Thousands
 9 Months Ended
Sep. 30, 2026
Sep. 30, 2025
Operating activities    
Net income/(loss) $ (337,102) $ (789,091)
Adjustments to reconcile net loss to net cash used in operating activities:    
Depreciation of long-lived assets 20,397 33,032
Amortization of intangible assets 2,736 6,019
Lower of cost or net realizable value inventory adjustments and provision for excess and obsolete inventory 22,358 99,626
Stock-based compensation 40,012 36,404
(Gain)/loss on extinguishment of convertible debt instruments and finance obligations (1,894) 9,127
Provision for losses on accounts receivable 6,114 17,964
Amortization of discount of debt issuance costs on convertible debt instruments and long-term debt 3,233 377
Provision for common stock warrants 33,345 29,465
Impairment 39,852 119,187
Gain on sale of property, plant, and equipment (25,787)  
Impairment of right of use assets   3,936
Gain on extinguishment of operating lease liability (6,568)  
Recovery on service contracts (48,105) (40,101)
Change in fair value of contingent consideration (1,368) (13,116)
Change in fair value of convertible debt instruments 36,733 (1,902)
Change in fair value of debt   6,127
Change in fair value of warrant liabilities (235)  
Loss on equity method investments and non-marketable securities 1,131 51,482
Changes in operating assets and liabilities that provide/(use) cash:    
Accounts receivable (41,501) 15,870
Inventory 6,085 32,521
Contract assets 10,180 (3,946)
Prepaid expenses and other assets (5,732) 31,557
Accounts payable, accrued expenses, and other liabilities (39,101) 80,650
Deferred revenue and other contract liabilities 11,444 (86,981)
Payments of contingent consideration (3,889) (8,341)
Payments of operating lease liabilities, net (42,863) (17,058)
Net cash used in operating activities (320,525) (387,192)
Investing activities    
Purchases of property, plant and equipment (11,985) (106,774)
Proceeds from sale of property, plant and equipment 41,035  
Proceeds from sale of investment tax credit 36,148  
Proceeds from sale of non-marketable security 750  
Purchases of equipment related to power purchase agreements and equipment related to fuel delivered to customers (41,592) (9,804)
Cash paid for non-consolidated entities and non-marketable securities (6,600) (1,130)
Net cash provided by/(used in) investing activities 17,756 (117,708)
Financing activities    
Payments of contingent consideration (2,330) (4,264)
Proceeds from public and private offerings, net of transaction costs   351,948
Payments of tax withholding on behalf of employees for net stock settlement of stock-based compensation (1,638) (705)
Proceeds from exercise of stock options 2,127 11
Contributions by non-controlling interest 300 1,525
Distributions to non-controlling interest (16,474)  
Principal payments on convertible debt instruments (2,413) (185,962)
Premium on principal of convertible debt instruments settled in cash   (3,832)
Proceeds from debt issuance   249,375
Principal payments on long-term debt (1,039) (11,399)
Cash paid for capitalized closing fees related to DOE loan guarantee   (13,666)
Principal repayments of finance obligations and finance leases (63,641) (69,947)
Net cash (used in)/provided by financing activities (85,108) 313,084
Effect of exchange rate changes on cash (3,118) 129
Decrease in cash and cash equivalents (234,409) (39,798)
Decrease in restricted cash (156,586) (151,889)
Cash, cash equivalents, and restricted cash beginning of period 993,984 1,040,709
Cash, cash equivalents, and restricted cash end of period 602,989 849,022
Supplemental disclosure of cash flow information    
Cash paid for interest, net of capitalized interest of $0 and $14.8 million, respectively 38,951 37,341
Summary of non-cash activity    
Recognition of right of use asset - finance leases 6,055 7,031
Recognition of right of use asset - operating leases 1,562 23,046
Principal payment on convertible debenture paid in common stock   50,000
Contributions of property, plant, and equipment from non-controlling interest   2,341
Increase to assets held for sale due to net transfers between assets held for sale and long-lived assets 20,946  
Increase to other current assets due to net transfers between other current assets and long-lived assets 39,200  
Decrease to contract assets due to net transfers between contract assets and long-lived assets (6,106)  
Decrease to inventory due to net transfers between inventory and long-lived assets (20,422) (11,068)
Accrued purchase of property, plant, and equipment, cash to be paid in subsequent period $ 22,160 $ 28,492