Securities - Securities with Unrealized Losses Aggregated by Investment Category and Time with Unrealized Loss Position (Details) - USD ($) $ in Thousands	Sep. 30, 2025	Dec. 31, 2024
Debt and Equity Securities, FV-NI [Line Items]
Less than 12 months, fair value	$ 72,055	$ 963
Less than 12 months, unrealized losses	1,502	1
More than 12 months, fair value	446,618	460,317
More than 12 months, unrealized losses	58,996	61,134
Total, fair value	518,673	461,280
Total, unrealized losses	60,498	61,135
U.S. Treasury Notes and Bonds [Member]
Debt and Equity Securities, FV-NI [Line Items]
Less than 12 months, fair value	0	0
Less than 12 months, unrealized losses	0	0
More than 12 months, fair value	83,597	80,502
More than 12 months, unrealized losses	5,923	9,373
Total, fair value	83,597	80,502
Total, unrealized losses	5,923	9,373
State and Municipal [Member]
Debt and Equity Securities, FV-NI [Line Items]
Less than 12 months, fair value	4,696	0
Less than 12 months, unrealized losses	520	0
More than 12 months, fair value	219,230	228,236
More than 12 months, unrealized losses	37,716	30,579
Total, fair value	223,926	228,236
Total, unrealized losses	38,236	30,579
Mortgage-backed [Member]
Debt and Equity Securities, FV-NI [Line Items]
Less than 12 months, fair value	67,359	963
Less than 12 months, unrealized losses	982	1
More than 12 months, fair value	134,772	142,170
More than 12 months, unrealized losses	15,190	20,954
Total, fair value	202,131	143,133
Total, unrealized losses	16,172	20,955
Corporate [Member]
Debt and Equity Securities, FV-NI [Line Items]
Less than 12 months, fair value	0	0
Less than 12 months, unrealized losses	0	0
More than 12 months, fair value	217	212
More than 12 months, unrealized losses	33	38
Total, fair value	217	212
Total, unrealized losses	33	38
Asset-backed Securities [Member]
Debt and Equity Securities, FV-NI [Line Items]
Less than 12 months, fair value	0	0
Less than 12 months, unrealized losses	0	0
More than 12 months, fair value	8,802	9,197
More than 12 months, unrealized losses	134	190
Total, fair value	8,802	9,197
Total, unrealized losses	$ 134	$ 190

Amount of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale), in continuous unrealized loss position for more than 12 months, without allowance for credit loss. Includes beneficial interest in securitized financial asset.

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Amount of accumulated unrealized loss on investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale), in continuous unrealized loss position for 12 months or longer, without allowance for credit loss. Includes beneficial interest in securitized financial asset.

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