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Postretirement Benefit Plans - Schedule of Amounts Recognized in Other Comprehensive (Loss) Income (Details) - USD ($) $ in Thousands	Dec. 31, 2025	Dec. 31, 2024
Defined Benefit Postretirement Health And Life Coverage
Defined Benefit Plan Disclosure [Line Items]
Net (gain) loss, pretax	$ (51)	$ (65)
Net prior service cost, pretax	0	0
Director's Retirement Plan
Defined Benefit Plan Disclosure [Line Items]
Net (gain) loss, pretax	0	0
Net prior service cost, pretax	0	0
Scottdale Defined Benefit Pension Plan
Defined Benefit Plan Disclosure [Line Items]
Net (gain) loss, pretax	(813)	(798)
Riverview Defined Benefit Plan
Defined Benefit Plan Disclosure [Line Items]
Net (gain) loss, pretax	$ (153)	$ (415)

X

- Definition

Amount, before tax, of accumulated other comprehensive income (loss) for gain (loss) of defined benefit plan, that has not been recognized in net periodic benefit (cost) credit.

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