CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME - USD ($) $ in Thousands		12 Months Ended
		Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Statement of Comprehensive Income [Abstract]
Net earnings		$ 307,583	$ 275,749	$ 214,891
Other Comprehensive Income (Loss), Net of Tax, Portion Attributable to Parent [Abstract]
Foreign currency translation, net of tax	[1]	18,447	(52,440)	77,942
Pension and postretirement adjustments, net of tax	[2]	(29,017)	(19,167)	(3,026)
Other Comprehensive Income (Loss), Net of Tax		(10,570)	(71,607)	74,916
Comprehensive Income		$ 297,013	$ 204,142	$ 289,807

[1] The tax benefit (expense) included in other comprehensive income for foreign currency translation adjustments for 2019, 2018, and 2017 were ($0.1) million, $0.8 million, and ($1.9) million, respectively.

[2] The tax benefit included in other comprehensive income for pension and postretirement adjustments for 2019, 2018, and 2017 were $8.5 million, $7.0 million, and $2.8 million, respectively.