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Valuation And Qualifying Accounts (Details) - USD ($) $ in Thousands | 12 Months Ended
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Sep. 30, 2016 | Oct. 02, 2015 | Oct. 03, 2014
Allowance For Doubtful Accounts [Member] |  |  |
Valuation and Qualifying Accounts Disclosure [Line Items] |  |  |
Balance at Beginning of Year | $ 2,329 | $ 2,665 | $ 3,759
Additions Charged to Costs and Expenses | 299 | 292 | 288
Less Deductions | 446 | 628 | 1,382
Balance at End of Year | 2,182 | 2,329 | 2,665
Reserves For Inventory Valuation [Member] |  |  |
Valuation and Qualifying Accounts Disclosure [Line Items] |  |  |
Balance at Beginning of Year | 4,879 | 3,950 | 4,015
Additions Charged to Costs and Expenses | 3,650 | 2,123 | 1,043
Less Deductions | 2,906 | 1,194 | 1,108
Balance at End of Year | 5,623 | 4,879 | 3,950
Valuation Of Deferred Tax Assets [Member] |  |  |
Valuation and Qualifying Accounts Disclosure [Line Items] |  |  |
Balance at Beginning of Year | 9,786 | 8,734 | 9,479
Additions Charged to Costs and Expenses | 1,670 | 2,602 | 668
Less Deductions | 1,241 | 1,550 | 1,413
Balance at End of Year | 10,215 | 9,786 | 8,734
Reserves For Sales Returns [Member] |  |  |
Valuation and Qualifying Accounts Disclosure [Line Items] |  |  |
Balance at Beginning of Year | 1,945 | 1,428 | 1,129
Additions Charged to Costs and Expenses | 4,596 | 3,139 | 2,553
Less Deductions | 3,769 | 2,622 | 2,254
Balance at End of Year | $ 2,772 | $ 1,945 | $ 1,428

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- Definition Total of allowances and reserves, the valuation and qualifying accounts that are either netted against the cost of an asset (in order to value it at its carrying value) or that reflect a liability established to represent expected future costs. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section S99 -Paragraph 4 -Subparagraph (SX 210.12-09) -URI http://asc.fasb.org/extlink&oid=26873400&loc=d3e24092-122690 + Details
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- Definition Amount of increase in the allowances and reserves, which consist of the valuation and qualifying accounts that are either netted against the cost of an asset or that reflect a liability established to represent expected future costs, from charges to costs and expenses. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section S99 -Paragraph 4 -Subparagraph (SX 210.12-09) -URI http://asc.fasb.org/extlink&oid=26873400&loc=d3e24092-122690 + Details
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- Definition Total of the deductions in a given period to allowances and reserves, the valuation and qualifying accounts that are either netted against the cost of an asset (in order to value it at its carrying value) or that reflect a liability established to represent expected future costs, representing receivables written off as uncollectible and portions of the reserves utilized, respectively. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section S99 -Paragraph 4 -Subparagraph (SX 210.12-09) -URI http://asc.fasb.org/extlink&oid=26873400&loc=d3e24092-122690 + Details
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- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References No definition available. + Details
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