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Net Loss per Share - Basic and Diluted Net Loss Per Share (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended		9 Months Ended		12 Months Ended
	Sep. 30, 2024	Sep. 30, 2023	Sep. 30, 2024	Sep. 30, 2023	Dec. 31, 2023	Dec. 31, 2022
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Net loss	$ (23,976)	$ (24,103)	$ (63,140)	$ (43,202)	$ (60,400)	$ 142,100
Dilutive Net Loss	$ (23,976)	$ (24,103)	$ (63,140)	$ (43,202)
Net loss per share
Basic	$ (0.04)	$ (0.04)	$ (0.10)	$ (0.08)
Diluted	$ (0.04)	$ (0.04)	$ (0.10)	$ (0.08)
Basic weighted average shares outstanding	620,897,955	592,452,262	617,370,311	552,703,546
Dilutive potential common stock outstanding
Diluted weighted average shares outstanding	620,897,955	592,452,262	617,370,311	552,703,546
Anti-dilutive shares outstanding	92,034,866	79,208,079	92,034,866	79,208,079
Stock-based awards
Dilutive potential common stock outstanding
Anti-dilutive shares outstanding	44,599,494	31,953,024	44,599,494	31,953,024
2025 Notes
Dilutive potential common stock outstanding
Anti-dilutive shares outstanding	15,622,814	15,622,814	15,622,814	15,622,814
Energy Capital Preferred Shares
Dilutive potential common stock outstanding
Anti-dilutive shares outstanding	30,372,058	30,372,058	30,372,058	30,372,058
Warrants
Dilutive potential common stock outstanding
Anti-dilutive shares outstanding	1,440,500	1,260,183	1,440,500	1,260,183
Number of shares called by warrants	83,951,061	83,951,061	83,951,061	83,951,061