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Securities - Held-to-Maturity Securities Held by Company (Details) - USD ($)
$ in Thousands
Dec. 31, 2023
Dec. 31, 2022
Schedule of Held-to-maturity Securities [Line Items]    
Amortized Cost $ 312,401 $ 312,344
Gross Unrealized Gains 0 0
Gross Unrealized Losses 44,946 50,652
Fair Value 267,455 261,692
U.S. Treasuries    
Schedule of Held-to-maturity Securities [Line Items]    
Amortized Cost 86,266 86,478
Gross Unrealized Gains 0 0
Gross Unrealized Losses 11,051 12,937
Fair Value 75,215 73,541
Obligations of U.S. Government sponsored entities    
Schedule of Held-to-maturity Securities [Line Items]    
Amortized Cost 226,135 225,866
Gross Unrealized Gains 0 0
Gross Unrealized Losses 33,895 37,715
Fair Value $ 192,240 $ 188,151