Common Stock Plans (Stock Options) (Details) (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
Shares
Remaining reserved for issuance					2,921,392
Stock options
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based compensation, vesting period					3 years
Share-based compensation, expiration period					10 years
Shares
Outstanding, Beginning of Period, Shares					1,648,475	1,338,241	1,276,043
Granted, Shares	3,686	134,076	371,040	293,978	137,762	371,040	293,978
Exercised, Shares					(590,119)	(58,471)	(227,405)
Forfeited, Shares					(5,074)	(2,335)	(4,375)
Outstanding, End of Period, Shares					1,191,044	1,648,475	1,338,241
Exercisable, Shares					713,445	987,733	677,753
Remaining reserved for issuance					2,921,392
Weighted Average Exercise Price
Outstanding, Beginning of Period, Weighted Average Exercise Price (in dollars per share)					$ 47.58	$ 44.77	$ 40.16
Granted, Weighted Average Exercise Price (in dollars per share)					$ 49.22	$ 54.11	$ 54.99
Exercised, Weighted Average Exercise Price (in dollars per share)					$ 40.92	$ 24.55	$ 32.33
Forfeited, Weighted Average Exercise Price (in dollars per share)					$ 51.85	$ 46.45	$ 35.35
Outstanding, End of Period, Weighted Average Exercise Price (in dollars per share)					$ 51.06	$ 47.58	$ 44.77
Exercisable, Weighted Average Exercise Price (in dollars per share)					$ 49.80	$ 43.75	$ 43.72