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Investment Securities -Summary of Investment Securities by Contractual Maturity (Details) - USD ($) $ in Thousands		Sep. 30, 2025	Dec. 31, 2024
Schedule of Available-for-sale Securities
Debt securities, maturing within 1 year, amortized cost		$ 8,038
Debt securities, maturing 1 to 5 years, amortized cost		85,605
Debt securities, maturing 5 to 10 years, amortized cost		230,388
Debt securities, maturing over 10 years, amortized cost		754,672
Amortized Cost		1,078,703	$ 1,229,382
Debt securities, maturing within 1 year, fair value		7,987
Debt securities, maturing 1 to 5 years, fair value		80,271
Debt securities, maturing 5 to 10 years, fair value		214,124
Debt securities, maturing over 10 years, fair value		674,524
Debt securities	[1]	$ 976,906	1,083,555
Available-for-sale securities, maturing within 1 year, weighted average yield		2.48%
Available-for-sale securities, maturing 1 to 5 years, weighted average yield		2.02%
Available-for-sale securities, maturing 5 to 10 years, weighted average yield		2.94%
Available-for-sale securities, maturing over 10 years, weighted average yield		2.76%
Available-for-sale securities, total weighted average yield		2.74%
U.S. Treasury and government agencies
Schedule of Available-for-sale Securities
Debt securities, maturing within 1 year, amortized cost		$ 262
Debt securities, maturing 1 to 5 years, amortized cost		845
Debt securities, maturing 5 to 10 years, amortized cost		11,227
Debt securities, maturing over 10 years, amortized cost		5,248
Amortized Cost		17,582	15,317
Debt securities, maturing within 1 year, fair value		261
Debt securities, maturing 1 to 5 years, fair value		848
Debt securities, maturing 5 to 10 years, fair value		11,330
Debt securities, maturing over 10 years, fair value		5,257
Debt securities		17,696	15,196
U.S. government sponsored agencies
Schedule of Available-for-sale Securities
Debt securities, maturing within 1 year, amortized cost		1,496
Debt securities, maturing 1 to 5 years, amortized cost		32,513
Debt securities, maturing 5 to 10 years, amortized cost		77,020
Debt securities, maturing over 10 years, amortized cost		60,153
Amortized Cost		171,182	224,167
Debt securities, maturing within 1 year, fair value		1,480
Debt securities, maturing 1 to 5 years, fair value		29,996
Debt securities, maturing 5 to 10 years, fair value		74,278
Debt securities, maturing over 10 years, fair value		58,378
Debt securities		164,132	209,083
States and political subdivisions
Schedule of Available-for-sale Securities
Debt securities, maturing within 1 year, amortized cost		5,645
Debt securities, maturing 1 to 5 years, amortized cost		42,732
Debt securities, maturing 5 to 10 years, amortized cost		71,598
Debt securities, maturing over 10 years, amortized cost		88,530
Amortized Cost		208,505	225,074
Debt securities, maturing within 1 year, fair value		5,611
Debt securities, maturing 1 to 5 years, fair value		40,371
Debt securities, maturing 5 to 10 years, fair value		63,300
Debt securities, maturing over 10 years, fair value		77,540
Debt securities		186,822	196,301
Residential mortgage-backed securities
Schedule of Available-for-sale Securities
Debt securities, maturing within 1 year, amortized cost		0
Debt securities, maturing 1 to 5 years, amortized cost		1,588
Debt securities, maturing 5 to 10 years, amortized cost		43,604
Debt securities, maturing over 10 years, amortized cost		582,769
Amortized Cost		627,961	693,886
Debt securities, maturing within 1 year, fair value		0
Debt securities, maturing 1 to 5 years, fair value		1,536
Debt securities, maturing 5 to 10 years, fair value		41,534
Debt securities, maturing over 10 years, fair value		518,447
Debt securities		561,517	601,802
Commercial mortgage-backed securities
Schedule of Available-for-sale Securities
Debt securities, maturing within 1 year, amortized cost		635
Debt securities, maturing 1 to 5 years, amortized cost		6,427
Debt securities, maturing 5 to 10 years, amortized cost		23,939
Debt securities, maturing over 10 years, amortized cost		17,972
Amortized Cost		48,973	64,438
Debt securities, maturing within 1 year, fair value		635
Debt securities, maturing 1 to 5 years, fair value		6,049
Debt securities, maturing 5 to 10 years, fair value		20,924
Debt securities, maturing over 10 years, fair value		14,902
Debt securities		42,510	55,065
Bank-issued trust preferred securities
Schedule of Available-for-sale Securities
Debt securities, maturing within 1 year, amortized cost		0
Debt securities, maturing 1 to 5 years, amortized cost		1,500
Debt securities, maturing 5 to 10 years, amortized cost		3,000
Debt securities, maturing over 10 years, amortized cost		0
Amortized Cost		4,500	6,500
Debt securities, maturing within 1 year, fair value		0
Debt securities, maturing 1 to 5 years, fair value		1,471
Debt securities, maturing 5 to 10 years, fair value		2,758
Debt securities, maturing over 10 years, fair value		0
Debt securities		$ 4,229	$ 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 both September 30, 2025 and December 31, 2024.

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