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v3.25.1

Investment Securities - Amortized Cost and Fair Value Held-to-Maturity (Details) - USD ($) $ in Thousands | Mar. 31, 2025 | Dec. 31, 2024
--- | --- | ---
Held-to-Maturity |  |
Allowance for securities held-to-maturity | $ (150) | $ (150)
Total held-to-maturity securities | 2,942,783 | 2,954,881
Unrealized Gains | 23 | 317
Unrealized Losses | (457,273) | (484,060)
Fair Value | 2,485,533 | 2,471,138
U.S. government-sponsored entities and agencies |  |
Held-to-Maturity |  |
Amortized Cost | 834,830 | 832,984
Unrealized Gains | 0 | 0
Unrealized Losses | (145,696) | (168,653)
Fair Value | 689,134 | 664,331
Mortgage-backed securities |  |
Held-to-Maturity |  |
Amortized Cost | 958,004 | 970,212
Unrealized Gains | 0 | 0
Unrealized Losses | (150,470) | (169,546)
Fair Value | 807,534 | 800,666
States and political subdivisions |  |
Held-to-Maturity |  |
Amortized Cost | 1,150,099 | 1,151,835
Unrealized Gains | 23 | 317
Unrealized Losses | (161,107) | (145,861)
Fair Value | $ 989,015 | $ 1,006,291

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