Condensed Consolidated Statements of Comprehensive Income (Loss) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2019	Sep. 30, 2018	Sep. 30, 2019	Sep. 30, 2018
Statement of Comprehensive Income [Abstract]
Net earnings (loss)	$ 68.0	$ 79.0	$ 158.7	$ (7.2)
Gross
Recognition of pension items	1.3	2.4	3.5	3.8
Unrealized gains (losses) on derivative instruments for net investment hedge	17.2	(2.8)	20.2	12.1
Unrealized gains (losses) on derivative instruments for cash flow hedge	1.1	(0.2)	(0.7)	3.4
Foreign currency translation adjustments	(28.8)	(11.7)	(22.4)	(39.8)
Other comprehensive (loss) income	(9.2)	(12.3)	0.6	(20.5)
Taxes
Recognition of pension items	(0.4)	(0.2)	(0.9)	(0.5)
Unrealized gains (losses) on derivative instruments for net investment hedge	(4.3)	0.7	(5.0)	(3.0)
Unrealized gains (losses) on derivative instruments for cash flow hedge	(0.3)	0.1	0.2	(1.0)
Foreign currency translation adjustments	(3.2)	(0.2)	(3.3)	(0.8)
Other comprehensive (loss) income	(8.2)	0.4	(9.0)	(5.3)
Net
Recognition of pension items	0.9	2.2	2.6	3.3
Unrealized gains (losses) on derivative instruments for net investment hedge	12.9	(2.1)	15.2	9.1
Unrealized gains (losses) on derivative instruments for cash flow hedge	0.8	(0.1)	(0.5)	2.4
Foreign currency translation adjustments	(32.0)	(11.9)	(25.7)	(40.6)
Other comprehensive (loss) income	(17.4)	(11.9)	(8.4)	(25.8)
Comprehensive income (loss), net of taxes	$ 50.6	$ 67.1	$ 150.3	$ (33.0)