Investment Securities - Schedule of the Fair Values of Securities with Unrealized Losses (Details) - USD ($) $ in Thousands	Dec. 31, 2024	Dec. 31, 2023
Marketable Securities [Line Items]
AFS, Less than 12 months, Estimated Fair Value	$ 97,255	$ 82,743
AFS, Less than 12 Months, Unrealized Losses	2,193	675
AFS, 12 months or more, Estimated Fair Value	401,004	541,391
AFS, 12 months or more, Unrealized Losses	57,512	57,129
AFS, Total Estimated Fair Value	498,259	624,134
AFS, Total Unrealized Losses	59,705	57,804
State and political subdivisions
Marketable Securities [Line Items]
AFS, Less than 12 months, Estimated Fair Value	4,082	63,198
AFS, Less than 12 Months, Unrealized Losses	8	220
AFS, 12 months or more, Estimated Fair Value	163,893	152,854
AFS, 12 months or more, Unrealized Losses	16,964	16,046
AFS, Total Estimated Fair Value	167,975	216,052
AFS, Total Unrealized Losses	16,972	16,266
Mortgage-backed securities issued or guaranteed by U.S. government agencies or sponsored enterprises
Marketable Securities [Line Items]
AFS, Less than 12 months, Estimated Fair Value	85,272	0
AFS, Less than 12 Months, Unrealized Losses	2,086	0
AFS, 12 months or more, Estimated Fair Value	139,676	157,799
AFS, 12 months or more, Unrealized Losses	32,009	30,508
AFS, Total Estimated Fair Value	224,948	157,799
AFS, Total Unrealized Losses	34,095	30,508
Corporate bonds
Marketable Securities [Line Items]
AFS, Less than 12 months, Estimated Fair Value	7,901	19,545
AFS, Less than 12 Months, Unrealized Losses	99	455
AFS, 12 months or more, Estimated Fair Value	66,860	82,795
AFS, 12 months or more, Unrealized Losses	7,960	8,314
AFS, Total Estimated Fair Value	74,761	102,340
AFS, Total Unrealized Losses	8,059	8,769
Treasury securities
Marketable Securities [Line Items]
AFS, Less than 12 months, Estimated Fair Value		0
AFS, Less than 12 Months, Unrealized Losses		0
AFS, 12 months or more, Estimated Fair Value		108,721
AFS, 12 months or more, Unrealized Losses		1,115
AFS, Total Estimated Fair Value		108,721
AFS, Total Unrealized Losses		1,115
Asset backed securities issued or guaranteed by U.S. Government agencies or sponsored enterprises
Marketable Securities [Line Items]
AFS, Less than 12 months, Estimated Fair Value	0	0
AFS, Less than 12 Months, Unrealized Losses	0	0
AFS, 12 months or more, Estimated Fair Value	30,575	39,222
AFS, 12 months or more, Unrealized Losses	579	1,146
AFS, Total Estimated Fair Value	30,575	39,222
AFS, Total Unrealized Losses	$ 579	$ 1,146

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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