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Investment Securities - Summary of Held-to-maturity Investment Securities (Details) - USD ($) $ in Thousands | Mar. 31, 2025 | Dec. 31, 2024
--- | --- | ---
Schedule of Held-to-maturity Securities [Line Items] |  |
Held-to-maturity Securities | $ 706,912 | $ 533,108
Held-to-maturity Securities, Accumulated Unrecognized Holding Gain | 1,596 | 51
Held-to-maturity Securities, Accumulated Unrecognized Holding Loss | (71,703) | (81,773)
Fair value | 636,805 | 451,386
U.S. Treasury securities |  |
Schedule of Held-to-maturity Securities [Line Items] |  |
Held-to-maturity Securities | 49,715 | 49,639
Held-to-maturity Securities, Accumulated Unrecognized Holding Loss | (284) | (480)
Fair value | 49,431 | 49,159
Residential mortgage pass-through securities issued or guaranteed by U.S. government agencies or sponsored enterprises |  |
Schedule of Held-to-maturity Securities [Line Items] |  |
Held-to-maturity Securities | 262,594 | 271,105
Held-to-maturity Securities, Accumulated Unrecognized Holding Gain | 148 | 51
Held-to-maturity Securities, Accumulated Unrecognized Holding Loss | (30,602) | (36,870)
Fair value | 232,140 | 234,286
Other residential MBS issued or guaranteed by U.S. government agencies or sponsored enterprises |  |
Schedule of Held-to-maturity Securities [Line Items] |  |
Held-to-maturity Securities | 394,603 | 212,364
Held-to-maturity Securities, Accumulated Unrecognized Holding Gain | 1,448 |
Held-to-maturity Securities, Accumulated Unrecognized Holding Loss | (40,817) | (44,423)
Fair value | $ 355,234 | $ 167,941

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