CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (LOSS) (Unaudited) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2015	Sep. 30, 2014	Sep. 30, 2015	Sep. 30, 2014
Statement of Comprehensive Income [Abstract]
Net earnings	$ 27.0	$ 87.9	$ 100.8	$ 137.4
Other comprehensive income (loss):
Unrealized gain from change in pension obligations, net of tax of $(0.1) and $(0.2) in the three and nine months ended September 30, 2015, respectively, and $(0.1) and $(0.3) in the three and nine months ended September 30, 2014, respectively	0.2	0.3	0.8	0.9
Unrealized gain (loss) on cash flow hedges, net of tax of $0.1 and $(0.3) in the three and nine months ended September 30, 2015, respectively, and $0.3 and $0.2 in the three and nine months ended September 30, 2014, respectively	0.0	(0.5)	0.5	(0.4)
Cumulative translation adjustment	(37.4)	(28.4)	(76.0)	(25.0)
Comprehensive income (loss)	$ (10.2)	$ 59.3	$ 26.1	$ 112.9