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Fair Value Measurements - Convertible Promissory Note (Details) $ in Thousands	Dec. 31, 2024 USD ($)	May 31, 2024 USD ($)	Dec. 31, 2023 USD ($)
Fair Value Measurements
Available-for-sale securities	$ 127,970		$ 158,186
Convertible promissory notes | Fair value measured on recurring basis
Fair Value Measurements
Available-for-sale securities	2,372		2,330
Convertible promissory notes | Fair value measured on recurring basis | Level 3
Fair Value Measurements
Available-for-sale securities	$ 2,372		$ 2,330
Rimere | Risk-free interest rate
Fair Value Measurements
Convertible Promissory Note, Measurement Input	0.0424		0.0539
Rimere | Credit adjustment
Fair Value Measurements
Convertible Promissory Note, Measurement Input	0.0464		0.0531
Rimere | Credit adjusted discount rate
Fair Value Measurements
Convertible Promissory Note, Measurement Input	0.0888		0.107
Bridge To Renewables, BTR | Fair value measured on recurring basis | Level 3
Fair Value Measurements
Available-for-sale securities		$ 2,000
Bridge To Renewables, BTR | Risk-free interest rate
Fair Value Measurements
Convertible Promissory Note, Measurement Input	0.0431
Bridge To Renewables, BTR | Credit adjustment
Fair Value Measurements
Convertible Promissory Note, Measurement Input	0.0864
Bridge To Renewables, BTR | Credit adjusted discount rate
Fair Value Measurements
Convertible Promissory Note, Measurement Input	0.1295

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- Definition

Amount of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale), classified as current.

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