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Securities - Schedule of Amortized Cost and Fair Value of Securities Available for Sale and Held to Maturity (Details) - USD ($) $ in Thousands	Mar. 31, 2025	Dec. 31, 2024
Available for sale
Amortized cost within one year	$ 0	$ 0
Amortized cost one to five years	190	0
Amortized cost for five to ten years	183,815	173,533
Amortized cost for after ten years	79,610	90,505
Amortized cost, available for sale	263,615	264,038
Total available for sale investment securities, amortized cost	281,009	282,022
Fair value within one year	0	0
Fair value for one to five years	164	0
Fair value for five to ten years	149,725	141,915
Fair value for after ten years	67,080	77,219
Fair value, available for sale	216,969	219,134
Fair Value	231,431	233,677
Held to maturity
Within one year, amortized cost	53,179	59,129
One to five years, amortized cost	290,483	298,362
Five to ten years, amortized cost	369,687	366,493
After ten years, amortized cost	759,027	764,860
Amortized cost, held to maturity	1,472,376	1,488,844
Amortized Cost	1,843,991	1,867,848
Within one year, fair value	52,656	58,304
One to five years, fair value	274,198	278,007
five to ten years, fair value	316,976	312,748
After ten years, fair value	585,586	597,067
Fair value, held to maturity	1,229,416	1,246,126
Fair value, held to maturity	1,550,127	1,566,268
U.S. government agency mortgage-backed securities
Available for sale
Amortized cost, available for sale, mortgage obligations	17,394	17,984
Fair value, available for sale, without single maturity	14,462	14,543
Fair Value	14,462	14,543
Held to maturity
Without a single maturity date, amortized cost	343,057	349,726
Amortized Cost	343,057	349,726
Without a single maturity date, fair value	295,642	294,822
Fair value, held to maturity	295,642	294,822
Private labeled mortgage-backed pools
Held to maturity
Without a single maturity date, amortized cost	28,558	29,278
Amortized Cost	28,558	29,278
Without a single maturity date, fair value	25,069	25,320
Fair value, held to maturity	$ 25,069	$ 25,320

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