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Share-Based Employee Compensation (Summary of Stock Option Activity) (Details) - Stock options $ / shares in Units, $ in Thousands	12 Months Ended
	Sep. 27, 2020 USD ($) $ / shares shares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Option grants contractual term	seven years
Vesting period	3 years
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding [Roll Forward]
Options outstanding, beginning balance (in shares) | shares	266,558
Granted (in shares) | shares	129,173
Exercised (in shares) | shares	(62,305)
Forfeited (in shares) | shares	(122,594)
Expired (in shares) | shares	(3,369)
Options outstanding, ending balance (in shares) | shares	207,463
Options exercisable (in shares) | shares	174,104
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 (in usd per share) | $ / shares	$ 89.54
Options outstanding, Weighted Average Exercise Price, Granted (in usd per share) | $ / shares	75.23
Options outstanding, Weighted Average Exercise Price, Exercised (in usd per share) | $ / shares	74.57
Options outstanding, Weighted Average Exercise Price, Forfeited (in usd per share) | $ / shares	77.95
Options outstanding, Weighted Average Exercise Price, Expired (in usd per share) | $ / shares	97.31
Options outstanding, Weighted Average Exercise Price, Ending balance (in usd per share) | $ / shares	91.85
Options exercisable, Weighted Average Exercise Price (in usd per share) | $ / shares	$ 94.67
Options outstanding, Weighted Average Remaining Contractual Term, years	2 years 5 months 23 days
Options exercisable, Weighted Average Remaining Contractual Term, years	1 year 9 months 21 days
Options outstanding, Aggregate Intrinsic Value | $	$ 252
Options exercisable, Aggregate Intrinsic Value | $	$ 107

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Period over which grantee's right to exercise award under share-based payment arrangement is no longer contingent on satisfaction of service or performance condition, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days. Includes, but is not limited to, combination of market, performance or service condition.

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Weighted average price at which grantees can acquire the shares reserved for issuance under the stock option plan.

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Weighted average price at which option holders acquired shares when converting their stock options into shares.

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