Retirement Benefit Plans (Other Changes in Plan Assets and Benefit Obligations Recognized in Other Comprehensive Loss (Income) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2025	Dec. 31, 2024
Pension Plan
Defined Benefit Plan Disclosure [Line Items]
Current year actuarial (gain) loss	$ (2,604)	$ 960
Amortization of actuarial loss	(355)	(270)
Amortization of prior service cost	(58)	(58)
Settlements	(7,804)	0
Total recognized in other comprehensive (income) loss	(10,821)	632
Other Postretirement Benefits Plan
Defined Benefit Plan Disclosure [Line Items]
Current year actuarial (gain) loss	159	(49)
Amortization of actuarial loss	(92)	(75)
Amortization of prior service cost	0	6
Total recognized in other comprehensive (income) loss	$ 67	$ (118)