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Summary of Significant Accounting Policies - Basis of Presentation and Going Concern (Details) - USD ($) $ / shares in Units, $ in Thousands		12 Months Ended
	Apr. 10, 2025	Dec. 31, 2024	Dec. 31, 2023	Apr. 03, 2025	Feb. 08, 2023
Summary of Significant Accounting Policies [Line Items]
Voting rights stock held					85.30%
Cash and cash equivalents		$ 43,499	$ 75,585
Held-to-maturity securities		12,374
Accumulated deficit		(969,603)	(831,872)
Cash used in operating activities		(89,060)	(97,296)
Net loss		(137,731)	(134,098)
Convertible notes payable		$ 51,112	$ 0
Carbon Direct Capital Management LLC | Subsequent Event
Summary of Significant Accounting Policies [Line Items]
Sale of stock price (usd per share)				$ 0.02
Convertible notes payable				$ 40,150
Ownership percentage	14.60%

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