Stockholders' Equity (Narrative) (Details) (USD $) In Millions, except Share data, unless otherwise specified	3 Months Ended							6 Months Ended
	Sep. 29, 2013	Jun. 30, 2013	Mar. 31, 2013	Dec. 30, 2012	Sep. 30, 2012	Jul. 01, 2012	Apr. 01, 2012	Jun. 30, 2013	Oct. 24, 2012
Stockholders' Equity Note [Abstract]
Other Comprehensive Income (Loss), Reclassification Adjustment on Derivatives Included in Net Income, before Tax								$ (1.0)
Other Comprehensive Income (Loss), Reclassification Adjustment on Derivatives Included in Net Income, Tax								0.4
Stock repurchase program, number of shares authorized to be repurchased									6,000,000
Number of common stock repurchased in open market								3,600,000
Aggregate cost of repurchased common stock								123.0
Stock repurchase program, number of shares remained available for repurchase		2,400,000						2,400,000
Repurchased shares of common stock to satisfy statutory tax withholding obligation requirements								116,346
Aggregate cost of repurchased common stock to satisfy statutory tax withholding obligation requirements								4.0
Cash dividends (per share)	$ 0.07	$ 0.07	$ 0.07	$ 0.07	$ 0.07	$ 0.07	$ 0.07
Dividends Payable, Amount		$ 7.8						$ 7.8