Shareholders' Equity - Accumulated Other Comprehensive Loss (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2014		Sep. 30, 2013
Accumulated Other Comprehensive Income (Loss) [Roll Forward]
Balance as of December 31, 2013			$ (62.8)
Other comprehensive income (loss) before reclassifications, net of tax			(9.8)	[1]
Amounts reclassified from accumulated other comprehensive income (loss), net of tax			(0.1)
Net current-period other comprehensive (loss) income			(9.9)
Balance as of September 30, 2014	(72.7)		(72.7)
Income tax (benefit) expense for gains on derivative financial instruments			0.1
Income tax provision	3.4	(2.0)	1.8		(0.5)
Selling, general and administrative	42.5	46.3	130.2		142.1
Net pension curtailment/settlement loss	(4.2)	(11.7)	(11.5)		(18.2)
Gains (Losses) on Derivative Financial Instruments
Accumulated Other Comprehensive Income (Loss) [Roll Forward]
Balance as of December 31, 2013			2.4
Other comprehensive income (loss) before reclassifications, net of tax			0.7	[1]
Amounts reclassified from accumulated other comprehensive income (loss), net of tax			(1.2)
Net current-period other comprehensive (loss) income			(0.5)
Balance as of September 30, 2014	1.9		1.9
Defined Benefit Plans
Accumulated Other Comprehensive Income (Loss) [Roll Forward]
Balance as of December 31, 2013			(11.6)
Other comprehensive income (loss) before reclassifications, net of tax			(0.8)	[1]
Amounts reclassified from accumulated other comprehensive income (loss), net of tax			1.1
Net current-period other comprehensive (loss) income			0.3
Balance as of September 30, 2014	(11.3)		(11.3)
Foreign Currency Translation
Accumulated Other Comprehensive Income (Loss) [Roll Forward]
Balance as of December 31, 2013			(53.6)
Other comprehensive income (loss) before reclassifications, net of tax			(9.7)	[1]
Amounts reclassified from accumulated other comprehensive income (loss), net of tax			0
Net current-period other comprehensive (loss) income			(9.7)
Balance as of September 30, 2014	(63.3)		(63.3)
Reclassification out of Accumulated Other Comprehensive Income
Accumulated Other Comprehensive Income (Loss) [Roll Forward]
Reclassification for the period, net of tax	(0.2)		0
Reclassification out of Accumulated Other Comprehensive Income | Gains (Losses) on Derivative Financial Instruments
Accumulated Other Comprehensive Income (Loss) [Roll Forward]
Cost of goods sold	(1.2)		(2.0)
Income tax provision	0.5		0.8
Reclassification for the period, net of tax	(0.7)		(1.2)
Reclassification out of Accumulated Other Comprehensive Income | Defined Benefit Plans
Accumulated Other Comprehensive Income (Loss) [Roll Forward]
Income tax provision	0		0.2
Selling, general and administrative	0.3		0.7
Net pension curtailment/settlement loss	0.2		0.2
Reclassification for the period, net of tax	$ 0.5		$ 1.1

[1] Income tax benefit of $0.1 million was recorded for unrealized losses on derivative financial instruments for the nine months ended September 30, 2014.