Other Comprehensive Income (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2022	Sep. 30, 2021	Sep. 30, 2022	Sep. 30, 2021
Other Comprehensive (Income) Loss, Defined Benefit Plan, after Reclassification Adjustment, before Tax [Abstract]
Amortization of net actuarial (gain) loss, gross amount	$ (85)	$ 1,309	$ (25)	$ 2,992
Amortization of net actuarial loss, income tax (provision) benefit	21	(329)	4	(753)
Amortization of net actuarial loss, net amount	(64)	980	(21)	2,239
Actuarial gains, gross amount	12,265	2,891	17,737	7,019
Actuarial gains, income tax (provision) benefit	(3,091)	(729)	(4,462)	(1,764)
Actuarial gains, net amount	9,174	2,162	13,275	5,255
Foreign currency translation, gross amount	(608)	(122)	(743)	(705)
Foreign currency translation, income tax (provision) benefit	0	0	0	0
Foreign currency translation, net amount	(608)	(122)	(743)	(705)
Total other comprehensive income, gross amount	11,572	4,078	16,969	9,306
Total other comprehensive income, income tax (provision) benefit	(3,070)	(1,058)	(4,458)	(2,517)
Total other comprehensive income, net of taxes	$ 8,502	$ 3,020	$ 12,511	$ 6,789