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v3.25.1

Fair Value Measurements - Fair Values of Financial Assets and Liabilities, Including Derivative Financial Instruments (Details) $ in Thousands | Mar. 31, 2025 USD ($) | Dec. 31, 2024 USD ($)
--- | --- | ---
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |
Estimated Fair Value | $ 1,656,977 | $ 1,933,226
Trading investments | 53,732 | $ 53,262
Level 3 | Valuation Technique, Discounted Cash Flow |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |
Estimated Fair Value | 2,472 |
Trading investments | 51,296 |
Total | $ 53,768 |
Level 3 | Valuation Technique, Discounted Cash Flow | Minimum | Measurement Input, Prepayment Rate |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |
Debt Securities | 0.069 |
Residual Interests | 0.069 |
Level 3 | Valuation Technique, Discounted Cash Flow | Minimum | Measurement Input, Default Rate |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |
Debt Securities | 0.040 |
Residual Interests | 0.040 |
Level 3 | Valuation Technique, Discounted Cash Flow | Maximum | Measurement Input, Prepayment Rate |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |
Debt Securities | 0.110 |
Residual Interests | 0.110 |
Level 3 | Valuation Technique, Discounted Cash Flow | Maximum | Measurement Input, Default Rate |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |
Debt Securities | 0.170 |
Residual Interests | 0.170 |
Level 3 | Valuation Technique, Discounted Cash Flow | Weighted Average | Measurement Input, Prepayment Rate |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |
Debt Securities | 0.083 |
Residual Interests | 0.083 |
Level 3 | Valuation Technique, Discounted Cash Flow | Weighted Average | Measurement Input, Default Rate |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |
Debt Securities | 0.115 |
Residual Interests | 0.115 |

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