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Goodwill and Intangibles - Schedule of Acquired Intangibles in Accompanying Consolidated Balance Sheets (Details) - USD ($) $ in Thousands | 6 Months Ended
--- | ---
Mar. 30, 2018 | Mar. 31, 2017
Finite-Lived Intangible Assets and Liabilites [Line Items] |  |
September 29, 2017 | $ 332,920 |
Acquisitions | 603,188 |
Post-Acquisition Adjustments | (151,957) |
Amortization | (36,048) | $ (23,213)
Foreign currency translation | (2,156) |
March 30, 2018 | 745,947 |
Customer relationships, contracts and backlog |  |
Finite-Lived Intangible Assets and Liabilites [Line Items] |  |
September 29, 2017 | 301,468 |
Acquisitions | 557,000 |
Post-Acquisition Adjustments | (106,800) |
Amortization | (33,310) |
Foreign currency translation | (1,805) |
March 30, 2018 | 716,553 |
Developed Technology |  |
Finite-Lived Intangible Assets and Liabilites [Line Items] |  |
September 29, 2017 | 14,462 |
Acquisitions | 237 |
Post-Acquisition Adjustments | (1,921) |
Amortization | (767) |
Foreign currency translation | 0 |
March 30, 2018 | 12,011 |
Trade Name |  |
Finite-Lived Intangible Assets and Liabilites [Line Items] |  |
September 29, 2017 | 6,699 |
Acquisitions | 40,000 |
Post-Acquisition Adjustments | (41,700) |
Amortization | (1,530) |
Foreign currency translation | (7) |
March 30, 2018 | 3,462 |
Patents |  |
Finite-Lived Intangible Assets and Liabilites [Line Items] |  |
September 29, 2017 | 10,180 |
Acquisitions | 0 |
Post-Acquisition Adjustments | 0 |
Amortization | (208) |
Foreign currency translation | (344) |
March 30, 2018 | 9,628 |
Lease Intangible Assets |  |
Finite-Lived Intangible Assets and Liabilites [Line Items] |  |
September 29, 2017 | 0 |
Acquisitions | 5,951 |
Post-Acquisition Adjustments | (1,536) |
Amortization | (208) |
Foreign currency translation | 0 |
March 30, 2018 | 4,207 |
Other |  |
Finite-Lived Intangible Assets and Liabilites [Line Items] |  |
September 29, 2017 | 111 |
Acquisitions | 0 |
Post-Acquisition Adjustments | 0 |
Amortization | (25) |
Foreign currency translation | 0 |
March 30, 2018 | $ 86 |

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- Definition Business Combination, Recognized Identifiable Assets Acquired And Liabilities Assumed, Increase (Decrease) in Finite-Lived Intangibles + References No definition available. + Details
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- Definition Finite lived intangible assets and liabilities. + References No definition available. + Details
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- Definition The aggregate expense charged against earnings to allocate the cost of intangible assets (nonphysical assets not used in production) in a systematic and rational manner to the periods expected to benefit from such assets. As a noncash expense, this element is added back to net income when calculating cash provided by or used in operations using the indirect method. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 45 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=6388964&loc=d3e16225-109274 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 28 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=98514028&loc=d3e3602-108585 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 2 -Subparagraph (a)(2) -URI http://asc.fasb.org/extlink&oid=66006027&loc=d3e16323-109275 + Details
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- Definition Amount after amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 2 -Subparagraph (a)(1) -URI http://asc.fasb.org/extlink&oid=66006027&loc=d3e16323-109275 + Details
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