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Securities - Schedule of Available-for-Sales Securities (Details) - USD ($)
$ in Thousands
Jun. 30, 2024
Dec. 31, 2023
Debt Securities, Available-for-sale [Line Items]    
Amortized Cost $ 1,463,965 $ 1,548,482
Gross Unrealized Gains 4,110 9,376
Gross Unrealized Losses 150,617 141,208
Fair Value 1,317,458 1,416,650
U.S. Treasuries    
Debt Securities, Available-for-sale [Line Items]    
Amortized Cost 114,808 114,418
Gross Unrealized Gains 60 495
Gross Unrealized Losses 4,982 5,009
Fair Value 109,886 109,904
Obligations of U.S. Government sponsored entities    
Debt Securities, Available-for-sale [Line Items]    
Amortized Cost 442,952 472,286
Gross Unrealized Gains 2,937 6,449
Gross Unrealized Losses 23,212 22,277
Fair Value 422,677 456,458
Obligations of U.S. states and political subdivisions    
Debt Securities, Available-for-sale [Line Items]    
Amortized Cost 88,563 89,999
Gross Unrealized Gains 1 2
Gross Unrealized Losses 10,088 8,077
Fair Value 78,476 81,924
U.S. Government agencies    
Debt Securities, Available-for-sale [Line Items]    
Amortized Cost 45,419 49,976
Gross Unrealized Gains 4 8
Gross Unrealized Losses 5,311 4,744
Fair Value 40,112 45,240
U.S. Government sponsored entities    
Debt Securities, Available-for-sale [Line Items]    
Amortized Cost 769,723 819,303
Gross Unrealized Gains 1,108 2,422
Gross Unrealized Losses 106,891 100,895
Fair Value 663,940 720,830
U.S. corporate debt securities    
Debt Securities, Available-for-sale [Line Items]    
Amortized Cost 2,500 2,500
Gross Unrealized Gains 0 0
Gross Unrealized Losses 133 206
Fair Value $ 2,367 $ 2,294