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Valuation And Qualifying Accounts (Details) - USD ($) $ in Thousands | 12 Months Ended
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Sep. 30, 2023 | Oct. 01, 2022 | Oct. 02, 2021
Contract Reserves |  |  |
SEC Schedule, 12-09, Movement in Valuation Allowances and Reserves [Roll Forward] |  |  |
Balance at beginning of year | $ 46,547 | $ 58,857 | $ 72,412
Additions charged to expenses and other accounts | 94,829 | 23,607 | 41,572
Deductions | 96,046 | 35,099 | 55,377
Foreign exchange impact and other | (73) | (818) | 250
Balance at end of year | 45,257 | 46,547 | 58,857
Allowance for Credit Losses |  |  |
SEC Schedule, 12-09, Movement in Valuation Allowances and Reserves [Roll Forward] |  |  |
Balance at beginning of year | 4,608 | 4,351 | 6,313
Additions charged to expenses and other accounts | 1,786 | 1,686 | 2,245
Deductions | 2,200 | 1,083 | 4,238
Foreign exchange impact and other | (184) | (346) | 31
Balance at end of year | 4,010 | 4,608 | 4,351
Reserve for Inventory Valuation |  |  |
SEC Schedule, 12-09, Movement in Valuation Allowances and Reserves [Roll Forward] |  |  |
Balance at beginning of year | 140,605 | 155,655 | 153,311
Additions charged to expenses and other accounts | 20,286 | 25,252 | 26,513
Deductions | 21,336 | 33,876 | 25,151
Foreign exchange impact and other | 2,244 | (6,426) | 982
Balance at end of year | 141,799 | 140,605 | 155,655
Deferred Tax Valuation Allowance |  |  |
SEC Schedule, 12-09, Movement in Valuation Allowances and Reserves [Roll Forward] |  |  |
Balance at beginning of year | 8,650 | 13,896 | 14,784
Additions charged to expenses and other accounts | 2,454 | 0 | 2,513
Deductions | 4,254 | 4,598 | 3,729
Foreign exchange impact and other | (420) | (648) | 328
Balance at end of year | $ 6,430 | $ 8,650 | $ 13,896

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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 -Topic 235 -SubTopic 10 -Name Accounting Standards Codification -Section S99 -Paragraph 4 -Subparagraph (SX 210.12-09) -Publisher FASB -URI https://asc.fasb.org//1943274/2147480678/235-10-S99-4 + Details
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