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Restructuring and Other Charges - Additional Information (Details) $ in Thousands | 3 Months Ended | 9 Months Ended | 32 Months Ended
--- | --- | --- | ---
Jun. 30, 2018 USD ($) | Jul. 01, 2017 USD ($) | Jun. 30, 2018 USD ($) | Jul. 01, 2017 USD ($) | Jun. 30, 2018 USD ($) employee
Restructuring Cost and Reserve [Line Items] |  |  |  |  |
Restructuring and other charges, net | $ 1,627 | $ 1,551 | $ 1,846 | $ 8,300 | $ 84,500
Restructuring and Related Cost, Number of Positions Eliminated | employee |  |  |  |  | 800
Headquarters relocation charges | 1,900 |  | 2,900 |  |
Facility closures and related costs |  |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |  |
Assumed Sublease Income | 3,100 |  | 3,100 |  | $ 3,100
Accrued Expenses and Other Current Liabilities [Member] | Facility closures and related costs |  |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |  |
Restructuring Reserve | 1,600 |  | 1,600 |  | 1,600
Other Noncurrent Liabilities [Member] | Facility closures and related costs |  |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |  |
Restructuring Reserve | $ 1,100 |  | $ 1,100 |  | $ 1,100

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- Definition Amount of expenses associated with exit or disposal activities pursuant to an authorized plan. Excludes expenses related to a discontinued operation or an asset retirement obligation. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 420 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SAB Topic 5.P.3) -URI http://asc.fasb.org/extlink&oid=27011515&loc=d3e140864-122747 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 420 -SubTopic 10 -Section 50 -Paragraph 1 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=6394359&loc=d3e17939-110869 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 420 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SAB Topic 5.P.4(b)) -URI http://asc.fasb.org/extlink&oid=27011515&loc=d3e140904-122747 + Details
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