Share-Based Employee Compensation (Summary Of Stock Option Activity) (Details) - Stock options $ / shares in Units, $ in Thousands	12 Months Ended
	Sep. 27, 2015 USD ($) $ / shares shares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Employee Service Share-based Compensation, Nonvested Awards, Compensation Cost Not yet Recognized, Period for Recognition	1 year 3 months 20 days
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding [Roll Forward]
Options outstanding, shares, beginning balance	1,189,570
Shares, Granted	123,042
Shares, Exercised	(708,096)
Shares, Forfeited	(10,168)
Options outstanding, shares, ending balance	594,348
Options exercisable, Shares	285,820
Options exercisable and expected to vest, Shares	594,348
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Exercise Price [Roll Forward]
Options outstanding, Weighted Average Exercise Price, Beginning balance (usd per share) | $ / shares	$ 26.74
Options outstanding, Weighted Average Exercise Price, Granted (usd per share) | $ / shares	73.53
Options outstanding, Weighted Average Exercise Price, Exercised (usd per share) | $ / shares	21.29
Options outstanding, Weighted Average Exercise Price, Forfeited (usd per share) | $ / shares	38.74
Options outstanding, Weighted Average Exercise Price, Ending balance (usd per share) | $ / shares	42.72
Options exercisable, Weighted Average Exercise Price (usd per share) | $ / shares	30.34
Options exercisable and expected to vest, Weighted Average Exercise Price (usd per share) | $ / shares	$ 42.72
Options outstanding, Weighted Average Remaining Contractual Term, years	4 years 7 months 28 days
Options exercisable, Weighted Average Remaining Contractual Term, years	3 years 10 months 18 days
Options exercisable and expected to vest, Weighted Average Remaining Contractual Term, years	4 years 7 months 28 days
Options outstanding, Aggregate Intrinsic Value | $	$ 21,984
Options exercisable, Aggregate Intrinsic Value | $	14,112
Options exercisable and expected to vest, Aggregate Intrinsic Value | $	$ 21,984