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Securities - Amortized Cost and Fair Value of Securities Available for Sale (Details) - USD ($) $ in Thousands | Jun. 30, 2024 | Dec. 31, 2023
--- | --- | ---
Amortized cost and fair value of securities available for sale |  |
Amortized Cost | $ 894,599 | $ 1,062,649
Gross Unrealized Gains | 739 | 424
Gross Unrealized Losses | (145,653) | (139,794)
Fair Value | 749,685 | 923,279
Obligations of states and political subdivisions |  |
Amortized cost and fair value of securities available for sale |  |
Amortized Cost | 20,355 | 36,374
Gross Unrealized Gains | 68 | 119
Gross Unrealized Losses | (2,273) | (1,883)
Fair Value | 18,150 | 34,610
Other debt securities |  |
Amortized cost and fair value of securities available for sale |  |
Amortized Cost | 113,741 | 72,383
Gross Unrealized Gains | 565 | 109
Gross Unrealized Losses | (3,791) | (4,458)
Fair Value | 110,515 | 68,034
Government agency mortgage backed securities | Residential mortgage backed securities: |  |
Amortized cost and fair value of securities available for sale |  |
Amortized Cost | 193,895 | 301,400
Gross Unrealized Gains | 102 | 172
Gross Unrealized Losses | (26,380) | (24,968)
Fair Value | 167,617 | 276,604
Government agency mortgage backed securities | Commercial mortgage backed securities: |  |
Amortized cost and fair value of securities available for sale |  |
Amortized Cost | 6,016 | 6,029
Gross Unrealized Gains | 0 | 0
Gross Unrealized Losses | (681) | (637)
Fair Value | 5,335 | 5,392
Government agency collateralized mortgage obligations | Residential mortgage backed securities: |  |
Amortized cost and fair value of securities available for sale |  |
Amortized Cost | 420,707 | 485,164
Gross Unrealized Gains | 0 | 0
Gross Unrealized Losses | (89,746) | (85,883)
Fair Value | 330,961 | 399,281
Government agency collateralized mortgage obligations | Commercial mortgage backed securities: |  |
Amortized cost and fair value of securities available for sale |  |
Amortized Cost | 139,885 | 161,299
Gross Unrealized Gains | 4 | 24
Gross Unrealized Losses | (22,782) | (21,965)
Fair Value | $ 117,107 | $ 139,358

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