Equity, Other Comprehensive Income and Earnings Per Share - Reclassification from Accumulated Other Comprehensive Loss (Details) - USD ($) $ in Thousands	3 Months Ended
Mar. 31, 2026	Mar. 31, 2025
Equity, Other Comprehensive Income and Earnings Per Share
Noninterest expenses - Other	$ 1,801	$ 1,893
Interest expense - Trust preferred capital notes	352	350
Income tax expense	1,550	1,129
Reclassifications from accumulated other comprehensive loss into net income
Equity, Other Comprehensive Income and Earnings Per Share
Total reclassifications into net income	14	10
Defined benefit plan: \| Reclassifications from accumulated other comprehensive loss into net income
Equity, Other Comprehensive Income and Earnings Per Share
Total reclassifications into net income	13	9
Reclassification of recognized net actuarial losses into net income \| Reclassifications from accumulated other comprehensive loss into net income
Equity, Other Comprehensive Income and Earnings Per Share
Noninterest expenses - Other		(5)
Amortization of prior service credit into net income \| Reclassifications from accumulated other comprehensive loss into net income
Equity, Other Comprehensive Income and Earnings Per Share
Noninterest expenses - Other	17	17
Related income tax effects \| Reclassifications from accumulated other comprehensive loss into net income
Equity, Other Comprehensive Income and Earnings Per Share
Income tax expense	(4)	(3)
Cash flow hedges: \| Reclassifications from accumulated other comprehensive loss into net income
Equity, Other Comprehensive Income and Earnings Per Share
Total reclassifications into net income	1	1
Amortization of hedging gains into net income \| Reclassifications from accumulated other comprehensive loss into net income
Equity, Other Comprehensive Income and Earnings Per Share
Interest expense - Trust preferred capital notes	2	2
Related income tax effects \| Reclassifications from accumulated other comprehensive loss into net income
Equity, Other Comprehensive Income and Earnings Per Share
Income tax expense	$ (1)	$ (1)

Amount of current income tax expense (benefit) and deferred income tax expense (benefit) pertaining to continuing operations.

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