Comprehensive Income (Loss) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Other Comprehensive Income (Loss), Before Tax [Abstract]
Foreign currency translation adjustment	$ (4)	$ 2	$ (8)
Reclassification of net income (loss) on derivative instruments	612	612	612
Postretirement medical liability adjustment	637	(331)	(1,359)
Other comprehensive income (loss)	1,245	283	(755)
Other Comprehensive Income (Loss), Tax [Abstract]
Foreign currency translation adjustment	0	0	0
Reclassification of net income (loss) on derivative instruments	(160)	(160)	(160)
Postretirement medical liability adjustment	(133)	69	377
Other comprehensive income (loss)	(293)	(91)	217
Other Comprehensive Income (Loss), Net of Tax [Abstract]
Foreign currency translation adjustment	(4)	2	(8)
Reclassification of net income (loss) on derivative instruments	452	452	452
Postretirement medical liability adjustment	504	(262)	(982)
Other comprehensive income (loss)	952	192	(538)
Accumulated Other Comprehensive Income, Net of Tax [Abstract]
Foreign currency translation	1,433	1,437
Derivative instruments designated as cash flow hedges	(8,921)	(9,373)
Postretirement medical plans	784	280
Accumulated other comprehensive loss	$ (6,704)	$ (7,656)	$ (7,848)