Share-Based Awards, Purchase Plans and Compensation Cost (Stock Options by Exercise Price Range) (Details) (USD $) In Thousands, except Per Share data, unless otherwise specified	12 Months Ended
	Dec. 26, 2014
$ 16-30
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Options Outstanding	1,352
Options Outsanding Weighted Avg. Remaining Contractual Term in Years	4 years
Options Outstanding Weighted Avg. Exercise Price	$ 23.60
Options Exercisable	1,352
Options Exercisable Weighted Avg. Exercise Price	$ 23.60
$ 30-45
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Options Outstanding	1,585
Options Outsanding Weighted Avg. Remaining Contractual Term in Years	4 years
Options Outstanding Weighted Avg. Exercise Price	$ 39.31
Options Exercisable	1,458
Options Exercisable Weighted Avg. Exercise Price	$ 39.01
$ 45-60
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Options Outstanding	1,177
Options Outsanding Weighted Avg. Remaining Contractual Term in Years	7 years
Options Outstanding Weighted Avg. Exercise Price	$ 53.99
Options Exercisable	491
Options Exercisable Weighted Avg. Exercise Price	$ 52.24
$ 60-76
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Options Outstanding	861
Options Outsanding Weighted Avg. Remaining Contractual Term in Years	9 years
Options Outstanding Weighted Avg. Exercise Price	$ 75.19
Options Exercisable	17
Options Exercisable Weighted Avg. Exercise Price	$ 74.89
$ 16-76
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Options Outstanding	4,975
Options Outsanding Weighted Avg. Remaining Contractual Term in Years	6 years
Options Outstanding Weighted Avg. Exercise Price	$ 44.72
Options Exercisable	3,318
Options Exercisable Weighted Avg. Exercise Price	$ 34.86