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Revenue from Contracts with Customers Revenue from Contracts with Customers (Narrative) (Details) - USD ($) $ in Thousands | 3 Months Ended | 6 Months Ended |  |
--- | --- | --- | --- | ---
Mar. 30, 2019 | Mar. 30, 2019 | Sep. 30, 2018 | Sep. 29, 2018
Disaggregation of Revenue [Line Items] |  |  |  |
Revenue for adjustments made to performance obligations satisified in prior year | $ (1,321) | $ 10,438 |  |
Contract and contract-related loss reserves | 49,383 | 49,383 | $ 44,688 | $ 42,258
Revenue recognized due to contract liabilities | 46,078 | 93,586 |  |
Remaining performance obligation, amount | $ 2,230,000 | $ 2,230,000 |  |
Remaining performance obligation, percentage | 73.00% | 73.00% |  |
Remaining performance obligation, expected timing of satisfaction | 12 months | 12 months |  |
Transferred over time |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenue, net percent | 65.00% | 64.00% |  |
Transferred at Point in Time |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenue, net percent | 35.00% | 36.00% |  |
Minimum |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Payment terms |  | 30 |  |
Maximum |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Payment terms |  | 60 days |  |

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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://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 606 -SubTopic 10 -Section 50 -Paragraph 8 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=109196051&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=109196051&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://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 606 -SubTopic 10 -Section 50 -Paragraph 12 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=109196051&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=109196051&loc=SL49130556-203045 + Details
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