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Revenue from Contracts with Customers (Narrative) (Details) - USD ($) $ in Thousands | 12 Months Ended |
--- | --- | ---
Sep. 28, 2019 | Sep. 29, 2018
Revenue from External Customer [Line Items] |  |
Contract with Customer, Performance Obligation Satisfied in Previous Period | $ 20,055 |
Provision for Loss on Contracts | 60,914 | $ 48,818
Contract with Customer, Liability, Revenue Recognized | 119,398 |
Revenue, Remaining Performance Obligation, Amount | $ 2,232,600 |
Revenue, Remaining Performance Obligation, Percentage | 67.00% |
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Period | 12 months |
Minimum |  |
Revenue from External Customer [Line Items] |  |
Revenue, Performance Obligation, Description of Payment Terms | 30 |
Maximum |  |
Revenue from External Customer [Line Items] |  |
Revenue, Performance Obligation, Description of Payment Terms | 60 days |
Transferred over Time |  |
Revenue from External Customer [Line Items] |  |
RevenueNetPercent | 64.00% |
Transferred at Point in Time |  |
Revenue from External Customer [Line Items] |  |
RevenueNetPercent | 36.00% |

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- Definition Amount of revenue recognized that was previously included in balance of obligation to transfer good or service to customer for which consideration from customer has been received or is due. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 606 -SubTopic 10 -Section 50 -Paragraph 8 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=118956577&loc=SL49130549-203045 + Details
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- Definition Amount of revenue recognized from performance obligation satisfied or partially satisfied in previous reporting periods. Includes, but is not limited to, change in transaction price. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 606 -SubTopic 10 -Section 50 -Paragraph 12A -URI http://asc.fasb.org/extlink&oid=118956577&loc=SL108322424-203045 + Details
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- Definition Cumulative provision for contract losses not offset against related costs accumulated on the balance sheet. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 605 -SubTopic 35 -Section 45 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=68068069&loc=d3e57777-111642 + Details
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- Definition Description of payment terms in contract with customer. Includes, but is not limited to, timing of payment, existence of financing component, variability of consideration and constraint on variable consideration. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 606 -SubTopic 10 -Section 50 -Paragraph 12 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=118956577&loc=SL49130554-203045 + Details
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- Definition Amount of transaction price allocated to performance obligation that has not been recognized as revenue. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 606 -SubTopic 10 -Section 50 -Paragraph 13 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=118956577&loc=SL49130556-203045 + Details
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- Definition Period in which remaining performance obligation is expected to be recognized as revenue, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 606 -SubTopic 10 -Section 50 -Paragraph 13 -Subparagraph (b)(1) -URI http://asc.fasb.org/extlink&oid=118956577&loc=SL49130556-203045 + Details
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- Definition Percentage of remaining performance obligation to total remaining performance obligation not recognized as revenue. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 606 -SubTopic 10 -Section 50 -Paragraph 13 -Subparagraph (b)(1) -URI http://asc.fasb.org/extlink&oid=118956577&loc=SL49130556-203045 + Details
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