Condensed Consolidated Statements of Cash Flows - USD ($) $ in Thousands	3 Months Ended		12 Months Ended
	Mar. 31, 2025	Mar. 31, 2024	Dec. 31, 2024
Operating activities
Net loss	$ (196,859)	$ (295,776)
Adjustments to reconcile net loss to net cash used in operating activities:
Depreciation of long-lived assets	12,134	16,606
Amortization of intangible assets	2,007	4,725
Lower of cost or net realizable value inventory adjustments and provision for excess and obsolete inventory	8,262	39,675
Stock-based compensation	11,087	13,704
Loss on extinguishment of convertible debt instruments and debt	3,652	14,047
Provision/(recoveries) for losses on accounts receivable	40	(1,447)
Amortization of (premium)/discount of debt issuance costs on convertible debt instruments and long-term debt	(320)	330
Provision for common stock warrants	9,124	4,495
Deferred income tax expense		163
Impairment	1,064	284
(Recovery)/loss on service contracts	(2,937)	3,809
Change in fair value of contingent consideration	(11,819)	(9,200)
Lease origination costs		(1,331)
Change in fair value of convertible debenture	7,338
Loss on equity method investments	2,370	13,113
Changes in operating assets and liabilities that provide/(use) cash:
Accounts receivable	12,251	96,436
Inventory	(18,357)	(38,312)
Contract assets	580	1,356
Prepaid expenses and other assets	40,576	(14,496)
Accounts payable, accrued expenses, and other liabilities	47,578	25,755
Payments of contingent consideration	(6,024)	(9,164)
Payments of operating lease liability, net	(5,618)
Deferred revenue and other contract liabilities	(21,697)	(32,500)
Net cash used in operating activities	(105,568)	(167,728)
Investing activities
Purchases of property, plant and equipment	(40,451)	(92,621)
Purchases of equipment related to power purchase agreements and equipment related to fuel delivered to customers	(5,608)	(6,072)
Cash paid for non-consolidated entities and non-marketable equity securities	(514)	(21,891)
Net cash used in investing activities	(46,573)	(120,584)
Financing activities
Payments of contingent consideration		(836)
Proceeds from public and private offerings, net of transaction costs	276,053	305,346
Payments of tax withholding on behalf of employees for net stock settlement of stock-based compensation	(49)	(278)
Proceeds from exercise of stock options		41
Principal payment on convertible debenture	(45,000)
Premium on principal of convertible debenture settled in cash	(1,238)
Principal payments on long-term debt	(344)	(300)
Cash paid for closing fees related to loan guarantee	(12,817)
Principal repayments of finance obligations and finance leases	(23,373)	(20,908)
Net cash provided by financing activities	193,232	283,065
Effect of exchange rate changes on cash	(5,189)	4,187
Increase in cash and cash equivalents	90,151	37,840
Decrease in restricted cash	(54,249)	(38,900)
Cash, cash equivalents, and restricted cash beginning of period	1,040,709	1,169,144	$ 1,169,144
Cash, cash equivalents, and restricted cash end of period	1,076,611	1,168,084	$ 1,040,709
Supplemental disclosure of cash flow information
Cash paid for interest, net of capitalized interest of $5.0 million and $2.1 million, respectively	6,692	9,111
Summary of non-cash activity
Recognition of right of use asset - operating leases	9,428	2,913
Principal payment on convertible debenture paid in stock	30,000
Accrued debt extinguishment costs, cash to be paid in subsequent period		1,245
Net transfers between inventory and long-lived assets	476	16,008
Accrued purchase of fixed assets, cash to be paid in subsequent period	$ 47,447	$ 113,449