Common and Preferred Stock (Details) (USD $) In Millions, except Share data, unless otherwise specified	0 Months Ended	3 Months Ended			9 Months Ended
	Nov. 26, 2012	Sep. 28, 2013	Mar. 30, 2013	Sep. 29, 2012	Sep. 28, 2013	Sep. 29, 2012
Common and Preferred Stock
Maximum amount for repurchase of common stock	$ 75.0
Aggregate amount of common stock agreed to be repurchased	75.0
Number of shares repurchased	1,500,000
Percentage of the ASR Program's value received	75.00%
Number of additional shares delivered at maturity date of the program			600,000
Common stock repurchase average price per share (in dollars per share)					$ 36.00
Amount utilized to repurchase common stock		0.2		0.1	7.1	5.0
November 2012 program
Common and Preferred Stock
Maximum amount for repurchase of common stock	150.0				35.0
2013 ASR
Common and Preferred Stock
Maximum amount for repurchase of common stock		40.0
Aggregate amount of common stock agreed to be repurchased		40.0
Number of shares repurchased		820,120
Percentage of the ASR Program's value received		75.00%
Percentage of the ASR Program's value deliverable at maturity date of the program		25.00%
Maximum maturity period of the ASR Program		1 month 15 days
Number of separate transactions		2
Repurchases of shares of our common stock under stock repurchase programs					30.1
Additional-paid-in capital					9.8
Retained earnings					20.3
Equity forward contract					$ 9.9