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Investment Securities - Summary of Available-for-sale Investment Securities (Details) - USD ($) $ in Thousands		Mar. 31, 2025	Dec. 31, 2024
Schedule of Available-for-sale Securities
Amortized Cost		$ 1,199,677	$ 1,229,382
Gross Unrealized Gains		2,232	1,583
Gross Unrealized Losses		(128,235)	(147,410)
Fair Value	[1]	1,073,674	1,083,555
U.S. Treasury and government agencies
Schedule of Available-for-sale Securities
Amortized Cost		14,250	15,317
Gross Unrealized Gains		154	87
Gross Unrealized Losses		(61)	(208)
Fair Value		14,343	15,196
U.S. government sponsored agencies
Schedule of Available-for-sale Securities
Amortized Cost		223,585	224,167
Gross Unrealized Gains		239	53
Gross Unrealized Losses		(10,761)	(15,137)
Fair Value		213,063	209,083
States and political subdivisions
Schedule of Available-for-sale Securities
Amortized Cost		223,325	225,074
Gross Unrealized Gains		39	16
Gross Unrealized Losses		(27,859)	(28,789)
Fair Value		195,505	196,301
Residential mortgage-backed securities
Schedule of Available-for-sale Securities
Amortized Cost		673,730	693,886
Gross Unrealized Gains		1,799	1,391
Gross Unrealized Losses		(81,550)	(93,475)
Fair Value		593,979	601,802
Commercial mortgage-backed securities
Schedule of Available-for-sale Securities
Amortized Cost		60,287	64,438
Gross Unrealized Gains		1	36
Gross Unrealized Losses		(7,652)	(9,409)
Fair Value		52,636	55,065
Bank-issued trust preferred securities
Schedule of Available-for-sale Securities
Amortized Cost		4,500	6,500
Gross Unrealized Gains		0	0
Gross Unrealized Losses		(352)	(392)
Fair Value		$ 4,148	$ 6,108
[1]     Available-for-sale investment securities and held-to-maturity investment securities are presented net of allowance for credit losses of $0 and $237, respectively, at March 31, 2025, and $0 and $237, respectively, at December 31, 2024.

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