Consolidated Statements of Comprehensive Income $ in Thousands	3 Months Ended
	Mar. 31, 2022 USD ($)
NET EARNINGS	$ 49,796
Other Comprehensive Income (Loss), Foreign Currency Transaction and Translation Adjustment, Net of Tax	0
OTHER COMPREHENSIVE INCOME (LOSS):
TOTAL COMPREHENSIVE INCOME, net of tax	50,047
Accumulated Deficit [Member]
NET EARNINGS	49,796
Pension Plans [Member]
Other comprehensive income (loss), net of tax	242
OTHER COMPREHENSIVE INCOME (LOSS):
Income tax (expense) or benefit	(71)
Post-Retirement Plans [Member]
Other comprehensive income (loss), net of tax	9
OTHER COMPREHENSIVE INCOME (LOSS):
Income tax (expense) or benefit	$ (2)