CONSOLIDATED STATEMENTS OF COMPREHENSIVE EARNINGS (Unaudited) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021
Statement of Comprehensive Income [Abstract]
Net (loss) earnings	$ (242.9)	$ 17.6	$ (224.8)	$ 30.1
Foreign currency translation	(15.6)	0.9	(17.8)	(2.7)
Employee benefit plans:
Amortization or settlement of actuarial losses and prior service costs	(0.1)	0.4	0.0	0.6
Net change in employee benefit plans	(0.1)	0.4	0.0	0.6
Changes in fair value of cash flow hedges:
Unrealized net (losses) gains arising during period	(3.1)	0.5	(3.1)	(0.3)
Net losses (gains) reclassified into earnings	0.9	(0.5)	0.6	(1.5)
Total cash flow hedges	(2.2)	0.0	(2.5)	(1.8)
Other comprehensive (loss) earnings, net of tax	(17.9)	1.3	(20.3)	(3.9)
Comprehensive (loss) earnings	$ (260.8)	$ 18.9	$ (245.1)	$ 26.2