Comprehensive Income (Loss) (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), before Tax [Abstract]
Foreign currency translation adjustment	$ (4)	$ (1)	$ (5)	$ (56)
Derivative Instruments, Gain (Loss) Reclassified from Accumulated OCI into Income, Effective Portion, Net	(153)	(153)	(459)	(459)
Postretirement medical liability adjustment	(212)	(212)	(636)	(636)
Other Comprehensive Income (Loss), before Tax	(63)	(60)	(182)	(233)
Other Comprehensive Income (Loss), Tax [Abstract]
Foreign currency translation adjustment	0	0	0	0
Other Comprehensive Income (Loss), Cash Flow Hedge, Gain (Loss), Reclassification, Tax	(40)	(40)	(120)	(120)
Postretirement medical liability adjustment	54	53	162	160
Other Comprehensive Income (Loss), Tax	14	13	42	40
Other comprehensive income (loss), net of tax:
Foreign currency translation adjustment	(4)	(1)	(5)	(56)
Other Comprehensive Income (Loss), Cash Flow Hedge, Gain (Loss), Reclassification, after Tax	(113)	(113)	(339)	(339)
Postretirement medical liability adjustment	(158)	(159)	(474)	(476)
Total Other Comprehensive Loss	$ (49)	$ (47)	$ (140)	$ (193)