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Valuation And Qualifying Accounts (Details) - USD ($) $ in Thousands | 12 Months Ended
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Oct. 02, 2021 | Oct. 03, 2020 | Sep. 28, 2019
Contract Reserves |  |  |
SEC Schedule, 12-09, Movement in Valuation Allowances and Reserves [Roll Forward] |  |  |
Balance at beginning of year | $ 72,412 | $ 60,914 | $ 48,818
Additions charged to expenses and other accounts | 41,572 | 76,747 | 45,464
Deductions | 55,377 | 66,885 | 35,714
Foreign exchange impact and other | 250 | 1,636 | 2,346
Balance at end of year | 58,857 | 72,412 | 60,914
Allowance for Credit Losses |  |  |
SEC Schedule, 12-09, Movement in Valuation Allowances and Reserves [Roll Forward] |  |  |
Balance at beginning of year | 6,313 | 5,402 | 4,959
Additions charged to expenses and other accounts | 2,245 | 3,774 | 1,522
Deductions | 4,238 | 3,144 | 891
Foreign exchange impact and other | 31 | 281 | (188)
Balance at end of year | 4,351 | 6,313 | 5,402
Reserve for Inventory Valuation |  |  |
SEC Schedule, 12-09, Movement in Valuation Allowances and Reserves [Roll Forward] |  |  |
Balance at beginning of year | 153,311 | 134,185 | 125,316
Additions charged to expenses and other accounts | 26,513 | 52,956 | 23,227
Deductions | 25,151 | 35,747 | 12,716
Foreign exchange impact and other | 982 | 1,917 | (1,642)
Balance at end of year | 155,655 | 153,311 | 134,185
Deferred Tax Valuation Allowance |  |  |
SEC Schedule, 12-09, Movement in Valuation Allowances and Reserves [Roll Forward] |  |  |
Balance at beginning of year | 14,784 | 13,137 | 15,181
Additions charged to expenses and other accounts | 2,513 | 2,003 | 274
Deductions | 3,729 | 860 | 1,808
Foreign exchange impact and other | 328 | 504 | (510)
Balance at end of year | $ 13,896 | $ 14,784 | $ 13,137

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- Definition Amount of increase (decrease) in valuation and qualifying accounts and reserves from adjustment. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -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=120395691&loc=d3e24092-122690 + Details
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