Common Stock Plans (Stock Options, Valuation Assumptions) (Details) (Stock options, Stock Incentive Plan, USD $)	0 Months Ended				12 Months Ended
	Oct. 15, 2013	Jan. 24, 2013	Jan. 25, 2012	Jan. 26, 2011	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Stock options | Stock Incentive Plan
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions and Methodology [Abstract]
Awards granted	3,686	134,076	371,040	293,978	137,762	371,040	293,978
Fair market value of stock option at grant (in dollars per share)	$ 30.53	$ 16.66	$ 18.79	$ 19.65
Expected life of award	5 years 9 months 18 days	5 years 9 months 18 days	5 years 9 months 18 days	5 years 9 months 18 days
Risk-free interest rate	1.79%	1.01%	1.07%	2.45%
Annualized volatility rate	40.60%	40.30%	39.60%	37.80%
Dividend yield	0.70%	1.20%	1.00%	1.00%