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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