CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE EARNINGS - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2022	Mar. 31, 2021
Statement of Comprehensive Income [Abstract]
Net earnings	$ 226,153	$ 232,769
Foreign currency translation adjustments:
Foreign currency translation losses	(21,653)	(12,971)
Reclassification of foreign currency translation losses to earnings	5,915	0
Total foreign currency translation adjustments (net of $(8,431) and $(10,492) tax provision, respectively)	(15,738)	(12,971)
Pension and other post-retirement benefit plans:
Amortization of actuarial losses included in net periodic pension cost	360	2,374
Amortization of prior service costs included in net periodic pension cost	221	208
Total pension and other post-retirement benefit plans (net of $(208) and $(773) tax provision, respectively)	581	2,582
Changes in fair value of cash flow hedges:
Unrealized net gains arising during period	1,964	4,324
Net gains reclassified into earnings	(1,576)	(1,411)
Total cash flow hedges (net of $(112) and $(871) tax provision, respectively)	388	2,913
Other comprehensive (loss) earnings, net of tax	(14,769)	(7,476)
Comprehensive earnings	$ 211,384	$ 225,293