Condensed Consolidated Statements of Comprehensive Income - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2017	Mar. 31, 2016
Net (loss) earnings available to common stockholders	$ (43.2)	$ 102.4
Other comprehensive income (loss), net of taxes:
Recognition of deferred pension items, net of taxes of $0.2 for the three months ended March 31, 2017 and $(0.6) for the three months ended March 31, 2016	4.5	1.7
Foreign currency translation adjustments, net of taxes of $1.9 for the three months ended March 31, 2017 and $2.1 for the three months ended March 31, 2016	55.2	(9.3)
Other comprehensive income (loss), net of taxes	50.1	(34.3)
Comprehensive income, net of taxes	6.9	68.1
Net Investment Hedge [Member]
Other comprehensive income (loss), net of taxes:
Unrealized (losses) gains on derivative instruments, net of taxes	(4.9)	(22.6)
Cash Flow Hedge [Member]
Other comprehensive income (loss), net of taxes:
Unrealized (losses) gains on derivative instruments, net of taxes	$ (4.7)	$ (4.1)