Consolidated Statements of Comprehensive Income - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Statement of Comprehensive Income [Abstract]
Net earnings	$ 925.0	$ 859.1	$ 790.9
Other comprehensive (loss) income, net of tax:
Foreign currency translation adjustments (net of tax of $0.0 in 2021, 2020, and 2019)	(9.5)	17.2	6.4
Comprehensive income	$ 915.5	$ 876.3	$ 797.3