CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME - USD ($) $ in Thousands		12 Months Ended
		Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Statement of Comprehensive Income [Abstract]
Net earnings		$ 267,159	$ 201,392	$ 307,583
Other Comprehensive Income (Loss), Net of Tax, Portion Attributable to Parent [Abstract]
Foreign currency translation, net of tax	[1]	(10,829)	41,282	18,447
Pension and postretirement adjustments, net of tax	[2]	131,220	(26,864)	(29,017)
Other Comprehensive Income (Loss), Net of Tax		120,391	14,418	(10,570)
Comprehensive Income		$ 387,550	$ 215,810	$ 297,013

[1] The tax benefit (expense) included in other comprehensive income for foreign currency translation adjustments for 2021, 2020, and 2019 was immaterial.

[2] The tax benefit (expense) included in other comprehensive income for pension and postretirement adjustments for 2021, 2020, and 2019 was ($42.3) million, $8.3 million, and $8.5 million, respectively.