Fair Value Measurements - Other Hedges (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2015	Sep. 30, 2014	Sep. 30, 2015	Sep. 30, 2014	Dec. 31, 2014
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Notional Amount	$ 25.1		$ 25.1		$ 110.1
Foreign currency forward contracts
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Gain (loss) on foreign currency contracts	0.5	$ 0.7	0.3	$ 1.1
Other Current Assets
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Derivative assets fair value	0.1		0.1		7.3
Other Current Liabilities
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Derivative liabilities fair value	(0.8)		(0.8)		0.0
Cash flow hedges designated as hedging instruments | Cash flow hedges
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Notional Amount	24.0		24.0		86.7
Cash flow hedges designated as hedging instruments | Cash flow hedges | Other Current Assets
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Derivative assets fair value	0.1		0.1		7.3
Cash flow hedges designated as hedging instruments | Cash flow hedges | Other Current Liabilities
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Derivative liabilities fair value	(0.8)		(0.8)		0.0
Other hedges not receiving hedge accounting
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Notional Amount	1.1		1.1		23.4
Other hedges not receiving hedge accounting | Other Current Assets
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Derivative assets fair value	0.0		0.0		0.0
Other hedges not receiving hedge accounting | Other Current Liabilities
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Derivative liabilities fair value	0.0		0.0		$ 0.0
Other (Income) Expense
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Net foreign currency loss	$ (0.9)	$ 1.5	$ 0.3	$ 1.9