Shareholders' Equity (Summary Of Share-Based Awards) (Details) (USD $) In Millions, except Share data, unless otherwise specified	9 Months Ended			3 Months Ended		9 Months Ended			3 Months Ended		9 Months Ended		3 Months Ended		9 Months Ended		3 Months Ended		9 Months Ended
	Sep. 27, 2014	Sep. 28, 2013	Jun. 29, 2013	Sep. 27, 2014 Employee Stock Option [Member]	Sep. 28, 2013 Employee Stock Option [Member]	Sep. 27, 2014 Employee Stock Option [Member]	Sep. 28, 2013 Employee Stock Option [Member]	Sep. 27, 2014 Share Based Incentive Awards [Member]	Sep. 27, 2014 Restricted Stock [Member]	Sep. 28, 2013 Restricted Stock [Member]	Sep. 27, 2014 Restricted Stock [Member]	Sep. 28, 2013 Restricted Stock [Member]	Sep. 27, 2014 Restricted Stock Units (RSUs) [Member]	Sep. 28, 2013 Restricted Stock Units (RSUs) [Member]	Sep. 27, 2014 Restricted Stock Units (RSUs) [Member]	Sep. 28, 2013 Restricted Stock Units (RSUs) [Member]	Sep. 27, 2014 Performance Shares [Member]	Sep. 28, 2013 Performance Shares [Member]	Sep. 27, 2014 Performance Shares [Member]	Sep. 28, 2013 Performance Shares [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Gross	148,955	174,775
Share-based Compensation Arrangement by Share-based Payment Award, Options, Nonvested, Weighted Average Grant Date Fair Value	$ 28.01		$ 23.01
Allocated Share-based Compensation Expense				$ 1.0	$ 1.1	$ 3.6	$ 4.0		$ 0.3	$ 0.5	$ 1.2	$ 0.9	$ 0.6	$ 1.0	$ 3.0	$ 3.0	$ 0.3	$ 0.2	$ 0.7	$ 0.3
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Expected Term						7 years	7 years												3 years	3 years
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Expected Volatility Rate						37.70%	38.50%												32.00%	35.00%
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Expected Dividend Rate						1.20%	1.20%												1.10%	1.20%
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Risk Free Interest Rate						2.00%	1.10%												0.90%	0.30%
Number of Shares, Outstanding								1,498,486
Number of Shares, Exercisable								878,054
Number of Shares, Outstanding, Wtd. Avg. Exercise Price								$ 59.27
Number of Shares, Exercisable, Wtd. Avg. Exercise Price								$ 53.10
Number of Shares, Outstanding, Wtd. Avg. Remaining Contractual Term (years)								6 years 0 months 26 days
Number of Shares, Exercisable, Wtd. Avg. Remaining Contractual Term (years)								4 years 8 months 5 days
Outstanding Shares, Aggregate Intrinsic Value								13.2
Exercisable Shars, Aggregate Intrinsic Value								12.3
Employee Service Share-based Compensation, Nonvested Awards, Compensation Not yet Recognized, Share-based Awards Other than Options				$ 12.7		$ 12.7			$ 0.7		$ 0.7		$ 10.4		$ 10.4		$ 3.0		$ 3.0
Employee Service Share-based Compensation, Nonvested Awards, Total Compensation Cost Not yet Recognized, Period for Recognition	2 years 3 months 4 days					3 years 1 month 21 days					7 months 10 days				2 years 0 months 4 days				2 years 2 months 23 days