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Fair Value, Company's Level 3 Assets and Liabilities Measured at Fair Value on Recurring Basis (Details) - USD ($) $ in Thousands | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jun. 30, 2025 | Jun. 30, 2024 | Jun. 30, 2025 | Jun. 30, 2024
Servicing Related Assets [Abstract] |  |  |  |  |  |  |
Beginning Balance | [1] |  |  |  |  | $ 233,658 |
Changes in Fair Value due to [Abstract] |  |  |  |  |  |  |
Ending Balance | [1] | $ 224,601 |  |  |  | 224,601 |
Fair Value, Measurements, Recurring [Member] | Level 3 [Member] |  |  |  |  |  |  |
Servicing Related Assets [Abstract] |  |  |  |  |  |  |
Beginning Balance |  | 227,333 |  | $ 250,380 |  | 233,658 | $ 253,629
Purchases and sales [Abstract] |  |  |  |  |  |  |
Sales |  | 0 |  | (12,803) |  | 0 | (12,803)
Other changes |  | (1) | [2] | (2) | [2] | (1) | 6
Total purchases and sales |  | (1) |  | (12,805) |  | (1) | (12,797)
Changes in Fair Value due to [Abstract] |  |  |  |  |  |  |
Changes in valuation inputs or assumptions used in valuation model |  | 1,216 |  | 1,761 |  | (2,033) | 2,038
Other changes in fair value |  | $ (3,947) | [3] | $ (5,073) | [3] | $ (7,023) | $ (8,607)
Servicing Asset, Fair Value, Change in Fair Value, Other, Statement of Income or Comprehensive Income [Extensible Enumeration] |  | Unrealized Gain (Loss) On Investments In Servicing Related Assets |  | Unrealized Gain (Loss) On Investments In Servicing Related Assets |  | Unrealized Gain (Loss) On Investments In Servicing Related Assets | Unrealized Gain (Loss) On Investments In Servicing Related Assets
Unrealized gain (loss) included in Net Income |  | $ (2,731) |  | $ (3,312) |  | $ (9,056) | $ (6,569)
Ending Balance |  | $ 224,601 |  | $ 234,263 |  | $ 224,601 | $ 234,263
[1] | See Note 9 regarding the estimation of fair value, which approximates carrying value for all pools.
[2] | Represents purchase price adjustments, principally contractual prepayment protection, and changes due to the Company’s repurchase of the underlying collateral.
[3] | Represents changes due to realization of expected cash flows and estimated MSR runoff.

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