Accumulated Other Comprehensive Loss (By Component) (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2017	Sep. 30, 2016	Sep. 30, 2017	Sep. 30, 2016
Accumulated Other Comprehensive Income (Loss) [Roll Forward]
Accumulated other comprehensive income (loss), net of tax, beginning of period			$ (152.6)	$ (152.5)
Other comprehensive income (loss) before reclassifications			14.6	(13.8)
Amounts reclassified from accumulated other comprehensive loss to net earnings (loss)		$ 4.0	0.0	4.0
Other comprehensive income (loss), net of tax	$ 3.6	(16.9)	14.6	(9.8)
Accumulated other comprehensive income (loss), net of tax, end of period	(138.0)	(162.3)	(138.0)	(162.3)
Translation Adjustments [Member]
Accumulated Other Comprehensive Income (Loss) [Roll Forward]
Accumulated other comprehensive income (loss), net of tax, beginning of period			(130.8)	(126.9)
Other comprehensive income (loss) before reclassifications			14.9	4.6
Amounts reclassified from accumulated other comprehensive loss to net earnings (loss)			0.0	0.0
Other comprehensive income (loss), net of tax			14.9	4.6
Accumulated other comprehensive income (loss), net of tax, end of period	(115.9)	(122.3)	(115.9)	(122.3)
Interest Rate Swap Adjustments [Member]
Accumulated Other Comprehensive Income (Loss) [Roll Forward]
Accumulated other comprehensive income (loss), net of tax, beginning of period			0.0
Other comprehensive income (loss) before reclassifications			(0.3)
Amounts reclassified from accumulated other comprehensive loss to net earnings (loss)			0.0
Other comprehensive income (loss), net of tax			(0.3)
Accumulated other comprehensive income (loss), net of tax, end of period	(0.3)		(0.3)
Pension Benefit Plan Adjustments [Member]
Accumulated Other Comprehensive Income (Loss) [Roll Forward]
Accumulated other comprehensive income (loss), net of tax, beginning of period			(21.8)	(25.6)
Other comprehensive income (loss) before reclassifications			0.0	(18.4)
Amounts reclassified from accumulated other comprehensive loss to net earnings (loss)			0.0	4.0
Other comprehensive income (loss), net of tax			0.0	(14.4)
Accumulated other comprehensive income (loss), net of tax, end of period	$ (21.8)	$ (40.0)	$ (21.8)	$ (40.0)