Equity-Based Compensation (Schedule of Compensation Cost By Award Type) (Details) - USD ($) $ in Thousands	12 Months Ended
Oct. 03, 2020	Sep. 28, 2019	Sep. 29, 2018
Share-based Compensation Arrangement by Share-based Payment Award
Total compensation cost before income taxes	$ 5,661	$ 6,464	$ 5,804
Income tax benefit	677	1,024	1,136
Stock appreciation rights
Share-based Compensation Arrangement by Share-based Payment Award
Total compensation cost before income taxes	2,643	2,594	2,617
Performance-based restricted stock units
Share-based Compensation Arrangement by Share-based Payment Award
Total compensation cost before income taxes	221	2,048	1,650
Restricted stock awards
Share-based Compensation Arrangement by Share-based Payment Award
Total compensation cost before income taxes	680	480	480
Employee stock purchase plan
Share-based Compensation Arrangement by Share-based Payment Award
Total compensation cost before income taxes	$ 2,117	$ 1,342	$ 1,057

Amount of tax benefit for recognition of expense of award under share-based payment arrangement.

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (h)(1)(i)
-URI http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901

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Amount of cost expensed and capitalized for award under share-based payment arrangement.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
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-URI http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901

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