Investment Securities - Summary of Held-to-maturity Investment Securities (Details) - USD ($) $ in Thousands	Mar. 31, 2024	Dec. 31, 2023
Schedule of Held-to-maturity Securities [Line Items]
Amortized Cost	$ 679,744	$ 683,895
Allowance for Credit Losses	(238)	(238)
Gross Unrealized Gains	1,054	2,266
Gross Unrealized Losses	(78,448)	(73,901)
Fair Value	602,112	612,022
U.S. government sponsored agencies
Schedule of Held-to-maturity Securities [Line Items]
Amortized Cost	188,423	188,475
Allowance for Credit Losses	0	0
Gross Unrealized Gains	309	489
Gross Unrealized Losses	(9,087)	(8,139)
Fair Value	179,645	180,825
States and political subdivisions
Schedule of Held-to-maturity Securities [Line Items]
Amortized Cost	144,315	144,496
Allowance for Credit Losses	(238)	(238)
Gross Unrealized Gains	73	134
Gross Unrealized Losses	(31,075)	(30,104)
Fair Value	113,075	114,288
Residential mortgage-backed securities
Schedule of Held-to-maturity Securities [Line Items]
Amortized Cost	246,579	248,559
Allowance for Credit Losses	0	0
Gross Unrealized Gains	672	1,643
Gross Unrealized Losses	(21,630)	(18,582)
Fair Value	225,621	231,620
Commercial mortgage-backed securities
Schedule of Held-to-maturity Securities [Line Items]
Amortized Cost	100,427	102,365
Allowance for Credit Losses	0	0
Gross Unrealized Gains	0	0
Gross Unrealized Losses	(16,656)	(17,076)
Fair Value	$ 83,771	$ 85,289