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Commitments and Contingencies - Narrative (Details) $ in Thousands | 9 Months Ended | 12 Months Ended
--- | --- | ---
Sep. 30, 2025 USD ($) investment | Dec. 31, 2024 USD ($) investment
Other Commitments |  |
Committed capital, SBIC investments | $ 32,000 | $ 28,000
Number of SBIC investments for committed capital | investment | 10 | 9
Committed capital, SBIC investments, remaining to be drawn | $ 10,405 | $ 8,598
Committed capital, solar tax equity investment | 10,000 |
Committed capital, solar tax equity investment, remaining to be drawn | 9,006 |
Letters of credit outstanding | $ 54,335 | $ 53,226

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