Accumulated Other Comprehensive Income (Loss) (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021	Mar. 31, 2022	Dec. 31, 2021	Mar. 31, 2021	Dec. 31, 2020
Schedule of Accumulated Other Comprehensive Income [Line Items]
Accumulated Other Comprehensive Income (Loss), Foreign Currency Translation Adjustment, Net of Tax	$ (20)	$ (14)	$ (20)	$ (14)	$ (20)	$ (20)	$ (14)	$ (14)
Accumulated other comprehensive income (loss), beginning balance	(61,829)	(77,258)	(62,080)	(78,656)
Other comprehensive income (loss) before reclassifications:
Other Comprehensive Income (Loss), Foreign Currency Transaction and Translation Adjustment, before Tax	0	0	0	0
Other Comprehensive Income (Loss), Foreign Currency Translation Adjustment, Tax	0	0	0	0
Amounts reclassified from accumulated other comprehensive income:
Actuarial costs (reclassified to salaries, wages and benefits)	324	1,811	648	3,622
Income Tax (Expense) or Benefit	(74)	(413)	(147)	(826)
Other Comprehensive Income (Loss), Foreign Currency Transaction and Translation Adjustment, Net of Tax	0	0	0	0
Other comprehensive income (loss), net of tax	250	1,398	501	2,796
Accumulated other comprehensive income (loss), ending balance	(61,579)	(75,860)	(61,579)	(75,860)
Pension Plans [Member]
Schedule of Accumulated Other Comprehensive Income [Line Items]
Accumulated other comprehensive income (loss), beginning balance	(61,589)	(76,731)	(61,831)	(78,093)
Amounts reclassified from accumulated other comprehensive income:
Actuarial costs (reclassified to salaries, wages and benefits)	313	1,764	626	3,528
Income Tax (Expense) or Benefit	(72)	(402)	(143)	(804)
Other comprehensive income (loss), net of tax	241	1,362	483	2,724
Accumulated other comprehensive income (loss), ending balance	(61,348)	(75,369)	(61,348)	(75,369)
Post-Retirement Plans [Member]
Schedule of Accumulated Other Comprehensive Income [Line Items]
Accumulated other comprehensive income (loss), beginning balance	(220)	(513)	(229)	(549)
Amounts reclassified from accumulated other comprehensive income:
Actuarial costs (reclassified to salaries, wages and benefits)	11	47	22	94
Income Tax (Expense) or Benefit	(2)	(11)	(4)	(22)
Other comprehensive income (loss), net of tax	9	36	18	72
Accumulated other comprehensive income (loss), ending balance	$ (211)	$ (477)	$ (211)	$ (477)