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Fair Value - Narrative (Details) - USD ($) $ in Thousands | 9 Months Ended |  |  |  |  |
--- | --- | --- | --- | --- | --- | ---
Sep. 30, 2025 | Jun. 30, 2025 | Dec. 31, 2024 | Sep. 30, 2024 | Jun. 30, 2024 | Dec. 31, 2023
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |  |  |  |
Allowance for credit losses | $ 147,453 | $ 142,184 | $ 138,055 | $ 140,469 | $ 141,641 | $ 148,931
Unfunded commitments | $ 5,400 |  | 7,100 |  |  |
Minimum |  |  |  |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |  |  |  |
Liquidation investment period | 5 years |  |  |  |  |
Maximum |  |  |  |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |  |  |  |
Liquidation investment period | 10 years |  |  |  |  |
Fair Value Measured at Net Asset Value Per Share |  |  |  |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |  |  |  |
Alternative Investment | $ 24,200 |  | 21,100 |  |  |
Collateral-Dependent Real Estate |  |  |  |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |  |  |  |
Fair value of impaired loans | 1,000 |  | 3,000 |  |  |
Allowance for credit losses | $ 100 |  | $ 1,200 |  |  |

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