Derivative Instruments and Hedging Activities - balance sheet location (Details) - USD ($) $ in Millions	Oct. 01, 2016	Dec. 31, 2015
Designated derivatives:
Derivatives, Fair Value [Line Items]
Derivative Liability, Fair Value, Amount Not Offset Against Collateral	$ 0.3	$ 2.3
Designated derivatives: | Other Current Assets [Member]
Derivatives, Fair Value [Line Items]
Derivative Asset, Fair Value, Net	3.8	3.8
Designated derivatives: | Other Current Assets [Member] | Foreign currency forward contracts
Derivatives, Fair Value [Line Items]
Derivative Asset, Fair Value, Net	3.8	3.8
Designated derivatives: | Accrued liabilities [Member] | Foreign currency forward contracts
Derivatives, Fair Value [Line Items]
Derivative Liability, Fair Value, Amount Not Offset Against Collateral	0.3	2.0
Non-designated derivatives:
Derivatives, Fair Value [Line Items]
Derivative Liability, Fair Value, Amount Not Offset Against Collateral	0.5	1.9
Non-designated derivatives: | Other Current Assets [Member]
Derivatives, Fair Value [Line Items]
Derivative Asset, Fair Value, Net	1.4	1.0
Non-designated derivatives: | Other Current Assets [Member] | Foreign currency forward contracts
Derivatives, Fair Value [Line Items]
Derivative Asset, Fair Value, Net	1.4	1.0
Non-designated derivatives: | Accrued liabilities [Member] | Foreign currency forward contracts
Derivatives, Fair Value [Line Items]
Derivative Liability, Fair Value, Amount Not Offset Against Collateral	$ 0.5	$ 1.9