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Valuation And Qualifying Accounts (Details) - USD ($) $ in Thousands | 12 Months Ended
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Oct. 01, 2016 | Oct. 03, 2015 | Sep. 27, 2014
Contract Loss Reserve Member |  |  |
Movement in Valuation Allowances and Reserves [Roll Forward] |  |  |
Balance at beginning of year | $ 30,422 | $ 35,984 | $ 44,228
Additions charged to cost and expenses | 29,469 | 24,073 | 35,692
Deductions | 27,152 | 29,120 | 43,909
Foreign exchange impact and other | (196) | (515) | (27)
Balance at end of year | 32,543 | 30,422 | 35,984
Allowance for Doubtful Accounts [Member] |  |  |
Movement in Valuation Allowances and Reserves [Roll Forward] |  |  |
Balance at beginning of year | 5,286 | 4,341 | 4,499
Additions charged to cost and expenses | 1,594 | 2,889 | 3,192
Deductions | 2,095 | 1,624 | 3,248
Foreign exchange impact and other | (247) | (320) | (102)
Balance at end of year | 4,538 | 5,286 | 4,341
Inventory Valuation Reserve [Member] |  |  |
Movement in Valuation Allowances and Reserves [Roll Forward] |  |  |
Balance at beginning of year | 103,350 | 102,572 | 98,113
Additions charged to cost and expenses | 24,183 | 21,166 | 17,791
Deductions | 17,622 | 17,911 | 11,783
Foreign exchange impact and other | (719) | (2,477) | (1,549)
Balance at end of year | 109,192 | 103,350 | 102,572
Valuation Allowance of Deferred Tax Assets [Member] |  |  |
Movement in Valuation Allowances and Reserves [Roll Forward] |  |  |
Balance at beginning of year | 9,583 | 9,216 | 7,906
Additions charged to cost and expenses | 2,981 | 1,313 | 1,585
Deductions | 1,521 | 281 | 108
Foreign exchange impact and other | (105) | (665) | (167)
Balance at end of year | $ 10,938 | $ 9,583 | $ 9,216

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- Definition A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period. + References No definition available. + Details
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- Definition Amount of increase (decrease) 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 adjustments. + 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 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 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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