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Investment Securities - Schedule of Unrealized Losses and Fair Value (Details) - USD ($)
$ in Thousands
Sep. 30, 2024
Dec. 31, 2023
Available for Sale    
Fair Value, Less than 12 Months $ 0 $ 0
Unrealized Losses, Less than 12 Months 0 0
Fair Value, 12 Months or More 382,585 402,517
Unrealized Losses, 12 Months or More 37,631 50,784
Total Fair Value 382,585 402,517
Total Unrealized Losses 37,631 50,784
Held to Maturity    
Fair Value, Less than 12 Months 0 0
Unrealized Losses, Less than 12 Months 0 0
Fair Value, 12 Months or More 59,038 59,057
Unrealized Losses, 12 Months or More 5,540 5,543
Total Fair Value 59,038 59,057
Total Unrealized Losses 5,540 5,543
U.S. Government and agencies    
Available for Sale    
Fair Value, Less than 12 Months 0 0
Unrealized Losses, Less than 12 Months 0 0
Fair Value, 12 Months or More 152,209 156,795
Unrealized Losses, 12 Months or More 13,985 19,663
Total Fair Value 152,209 156,795
Total Unrealized Losses 13,985 19,663
Collateralized mortgage obligations    
Available for Sale    
Fair Value, Less than 12 Months 0 0
Unrealized Losses, Less than 12 Months 0 0
Fair Value, 12 Months or More 38,067 41,085
Unrealized Losses, 12 Months or More 2,822 4,104
Total Fair Value 38,067 41,085
Total Unrealized Losses 2,822 4,104
Residential mortgage-backed securities    
Available for Sale    
Fair Value, Less than 12 Months 0 0
Unrealized Losses, Less than 12 Months 0 0
Fair Value, 12 Months or More 146,297 156,295
Unrealized Losses, 12 Months or More 15,088 19,630
Total Fair Value 146,297 156,295
Total Unrealized Losses 15,088 19,630
Held to Maturity    
Fair Value, Less than 12 Months 0 0
Unrealized Losses, Less than 12 Months 0 0
Fair Value, 12 Months or More 1,850 2,343
Unrealized Losses, 12 Months or More 63 124
Total Fair Value 1,850 2,343
Total Unrealized Losses 63 124
Commercial mortgage-backed securities    
Available for Sale    
Fair Value, Less than 12 Months 0 0
Unrealized Losses, Less than 12 Months 0 0
Fair Value, 12 Months or More 30,174 33,063
Unrealized Losses, 12 Months or More 3,472 4,553
Total Fair Value 30,174 33,063
Total Unrealized Losses 3,472 4,553
Corporate bonds    
Available for Sale    
Fair Value, Less than 12 Months 0 0
Unrealized Losses, Less than 12 Months 0 0
Fair Value, 12 Months or More 15,838 15,279
Unrealized Losses, 12 Months or More 2,264 2,834
Total Fair Value 15,838 15,279
Total Unrealized Losses 2,264 2,834
State and municipal    
Held to Maturity    
Fair Value, Less than 12 Months 0 0
Unrealized Losses, Less than 12 Months 0 0
Fair Value, 12 Months or More 57,188 56,714
Unrealized Losses, 12 Months or More 5,477 5,419
Total Fair Value 57,188 56,714
Total Unrealized Losses $ 5,477 $ 5,419