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Fair Value Measurements - Convertible Promissory Note (Details) $ in Thousands	Jun. 30, 2025 USD ($)	Dec. 31, 2024 USD ($)	May 31, 2024 USD ($)
Fair Value Measurements
Available-for-sale securities	$ 108,669	$ 127,970
Convertible promissory notes | Fair value measured on recurring basis
Fair Value Measurements
Available-for-sale securities	2,809	2,372
Convertible promissory notes | Fair value measured on recurring basis | Level 3
Fair Value Measurements
Available-for-sale securities	$ 2,809	$ 2,372
Rimere | Risk-free interest rate
Fair Value Measurements
Convertible Promissory Note, Measurement Input	4.29	4.24
Rimere | Credit adjustment
Fair Value Measurements
Convertible Promissory Note, Measurement Input	5.3	4.64
Rimere | Credit adjusted discount rate
Fair Value Measurements
Convertible Promissory Note, Measurement Input	9.59	8.88
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	4.45	4.31
Bridge To Renewables, BTR | Credit adjustment
Fair Value Measurements
Convertible Promissory Note, Measurement Input	9.3	8.64
Bridge To Renewables, BTR | Credit adjusted discount rate
Fair Value Measurements
Convertible Promissory Note, Measurement Input	13.75	12.95

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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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