Unaudited Condensed Consolidated Statements of Comprehensive Income - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2024	Mar. 31, 2023
NET EARNINGS	$ 8,619	$ 20,141
OTHER COMPREHENSIVE INCOME:
TOTAL COMPREHENSIVE INCOME, net of tax	10,586	23,846
Pension Plan [Member]
OTHER COMPREHENSIVE INCOME:
Defined Benefit Plan	1,984	3,705
Other Postretirement Benefits Plan [Member]
OTHER COMPREHENSIVE INCOME:
Defined Benefit Plan	$ (17)	$ 0