Long-Term Debt and Commitments (Details) In Millions, unless otherwise specified	3 Months Ended					3 Months Ended		3 Months Ended	12 Months Ended
	Mar. 29, 2015 USD ($)		Mar. 30, 2014 USD ($)	Dec. 31, 2014 USD ($)		Mar. 29, 2015 Term Loan Facility due May 9, 2021, net of unamortized discount of $13.6 and $14.2, respectively USD ($)	Dec. 31, 2014 Term Loan Facility due May 9, 2021, net of unamortized discount of $13.6 and $14.2, respectively USD ($)	Mar. 29, 2015 China Loan facility [Member] USD ($) Loan	Dec. 31, 2014 China Loan facility [Member] USD ($)	Dec. 31, 2014 China Loan facility [Member] CNY	Mar. 29, 2015 Revolving Credit Facility [Member] USD ($)
Debt Instrument [Line Items]
Debt	$ 1,418.8			$ 1,455.8		$ 1,414.6	$ 1,454.0	$ 4.2	$ 1.8
Less: Current maturities	0.4	[1]		0.3	[2]
Long-term debt	1,418.4	[1]		1,455.5	[2]
Long-term debt, unamortized discount						13.6	14.2
Maturity date						May 09, 2021		Dec. 31, 2018
Long-term debt, gross						1,560
Repayments of long-term debt	40.0		0.7			40.0
Number of committed loan facilities								3
Maximum borrowing capacity	39.1								1.8	73.8	200.0
Uncommitted short-term bank credit lines, amount outstanding	$ 6.0
Availability end date									Jun. 20, 2015	Jun. 20, 2015

[1] Unaudited

[2] Condensed from audited financial statements