Investment Securities - Schedule of Unrealized Gain (Loss) on Investments (Details) - USD ($) $ in Thousands	Jun. 30, 2026	Dec. 31, 2025
Available-for-sale
Amortized Cost	$ 513,616	$ 426,512
Gross Unrealized Gains	2,151	4,037
Gross Unrealized Losses	15,994	14,235
Estimated Fair Value	499,773	416,314
Held-to-maturity
Amortized Cost	372,866	347,285
Gross Unrealized Gains	5	16
Gross Unrealized Losses	26,565	25,599
Estimated Fair Value	346,306	321,702
Amortized Cost	886,482	773,797
Gross Unrealized Gains	2,156	4,053
Gross Unrealized Losses	42,559	39,834
Estimated Fair Value	846,079	738,016
U.S. Treasury and U.S. government agencies
Available-for-sale
Amortized Cost	17,294	19,446
Gross Unrealized Gains	0	0
Gross Unrealized Losses	460	380
Estimated Fair Value	16,834	19,066
Held-to-maturity
Amortized Cost	223,550	231,980
Gross Unrealized Gains	0	0
Gross Unrealized Losses	17,760	16,566
Estimated Fair Value	205,790	215,414
Mortgage-backed U.S. government agencies
Available-for-sale
Amortized Cost	441,388	361,109
Gross Unrealized Gains	1,800	3,788
Gross Unrealized Losses	13,190	11,500
Estimated Fair Value	429,998	353,397
Held-to-maturity
Amortized Cost	29,916	32,418
Gross Unrealized Gains	2	4
Gross Unrealized Losses	3,741	3,747
Estimated Fair Value	26,177	28,675
State and political subdivision obligations
Available-for-sale
Amortized Cost	4,287	4,319
Gross Unrealized Gains	0	0
Gross Unrealized Losses	497	485
Estimated Fair Value	3,790	3,834
Held-to-maturity
Amortized Cost	106,950	67,441
Gross Unrealized Gains	3	12
Gross Unrealized Losses	4,022	4,043
Estimated Fair Value	102,931	63,410
Corporate debt securities
Available-for-sale
Amortized Cost	50,647	41,638
Gross Unrealized Gains	351	249
Gross Unrealized Losses	1,847	1,870
Estimated Fair Value	49,151	40,017
Held-to-maturity
Amortized Cost	12,450	15,446
Gross Unrealized Gains	0	0
Gross Unrealized Losses	1,042	1,243
Estimated Fair Value	$ 11,408	$ 14,203

Amount, before tax, of unrealized gain in accumulated other comprehensive income (AOCI) on investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale).

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Amount, before tax, of unrealized loss in accumulated other comprehensive income (AOCI) on investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale).

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Amount of cumulative unrecognized gain on investment in debt security measured at amortized cost (held-to-maturity) and investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale).

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Amount of cumulative unrecognized loss on investment in debt security measured at amortized cost (held-to-maturity) and investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale).

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Fair value of investment in debt security measured at amortized cost (held-to-maturity) and investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale).

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Fair value of investment in debt security measured at amortized cost (held-to-maturity).

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