Securities Available for Sale and Held to Maturity - Gains and Losses as a Result of Calls and Disposition of Securities (Details) - USD ($) $ in Thousands |
3 Months Ended | 6 Months Ended | ||
|---|---|---|---|---|
Jun. 30, 2025 |
Jun. 30, 2024 |
Jun. 30, 2025 |
Jun. 30, 2024 |
|
| Investments, Debt and Equity Securities [Abstract] | ||||
| Proceeds from calls and sales of securities | $ 0 | $ 1,378,272 | $ 0 | $ 1,378,272 |
| Gross realized (losses) | $ 0 | $ (182,792) | $ 0 | $ (182,792) |