Stock-Based Compensation (Details) (USD $) In Millions, except Share data in Thousands, unless otherwise specified	12 Months Ended									0 Months Ended
	Dec. 28, 2013	Dec. 29, 2012	Dec. 31, 2011	Dec. 28, 2013 Restricted Stock [Member]	Dec. 29, 2012 Restricted Stock [Member]	Dec. 31, 2011 Restricted Stock [Member]	Dec. 28, 2013 Stock Options [Member]	Dec. 29, 2012 Stock Options [Member]	Dec. 31, 2011 Stock Options [Member]	Nov. 07, 2012 Stock Options [Member] Former Chief Executive Officer [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock-based compensation expense	$ 5.7	$ 4.0	$ 3.5							$ 2.1
Related tax benefit to stock based compensation	0.7	2.6	0.9
Aggregate intrinsic value				22.9
Compensation for stock awards not yet recognized				12.8
Compensation recognition period				3 years 8 months 12 days
Stock options vesting period							5 years
Number of years vesting starts after the grant date							1 year
Stock options expirations							10 years
Weighted average grant-date fair value of options granted (in dollars per share)				$ 56.63	$ 42.83	$ 37.87	$ 17.54	$ 14.89	$ 12.53
Estimated forfeiture rate (in hundredths)								16.50%	17.00%
Weighted average key assumptions [Abstract]
Expected term (in years)							5 years 10 months 24 days	6 years 6 months	6 years 3 months 18 days
Expected price volatility (in hundredths)							39.70%	37.50%	35.80%
Risk-free interest rate (in hundredths)							0.70%	0.70%	1.70%
Dividend yield (in hundredths)							0.90%	0.90%	1.10%
Options outstanding [Roll Forward]
Beginning balance (in shares)				285			694
Granted (in shares)				151			10
Exercised (in shares)				(70)			(115)
Ending balance (in shares)				366	285		589	694
Weighted average exercise price [Roll Forward]
Beginning balance (in dollars per share)				$ 32.36			$ 28.93
Granted (in dollars per share)				$ 56.63			$ 50.21
Exercised (in dollars per share)				$ 26.42			$ 28.69
Ending balance (in dollars per share)				$ 43.49	$ 32.36		$ 29.34	$ 28.93
Aggregate intrinsic value of all outstanding options							18.7
Weighted average remaining contractual term of all outstanding options (in years)							4 years 10 months 24 days
Outstanding options, exercisable (in shares)							419
Aggregate intrinsic value of current exercisable shares							13.8
Weighted average exercise price (in dollars per share)							$ 29.74
Weighted average remaining contractual term							4 years 3 months 18 days
Total intrinsic value of options exercised							2.9	12.1	6.6
Fair value of options vested				1.8	1.7	0.7	1.1	1.7	2.1
Stock option compensation not yet recognized							$ 0.7
Average stock option expense recognition period							1 year 10 months 24 days
Shares available for future issuance (in shares)							195