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Restructuring and Divestiture Charges - Charges Taken Related to Accrued Restructuring Actions (Detail) - Restructuring $ in Millions | 6 Months Ended
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Apr. 01, 2017 USD ($)
Two Thousand Sixteen [Member] |
Restructuring Reserve [Roll Forward] |
Period beginning balance | $ 6.3
Period end balance |
Two Thousand Sixteen [Member] | Fiscal 2017 Actions [Member] |
Restructuring Reserve [Roll Forward] |
Period beginning balance | 0.0
Period end balance |
Two Thousand Sixteen [Member] | Restructuring Action Two Thousand Sixteen [Domain] |
Restructuring Reserve [Roll Forward] |
Period beginning balance | 5.5
Period end balance |
Two Thousand Sixteen [Member] | Fiscal 2015 Actions |
Restructuring Reserve [Roll Forward] |
Period beginning balance | 0.2
Period end balance |
Two Thousand Sixteen [Member] | Fiscal 2014 Actions |
Restructuring Reserve [Roll Forward] |
Period beginning balance | 0.6
Period end balance |
Two Thousand Seventeen [Member] |
Restructuring Cost and Reserve [Line Items] |
Restructuring Charges Under Exit Or Disposal Plan | 4.8
Restructuring charges, gross | 5.0
Restructuring Reserve [Roll Forward] |
Severance payments and adjustments | (4.9)
Other payments | (0.9)
Period end balance | 5.5
Two Thousand Seventeen [Member] | Fiscal 2017 Actions [Member] |
Restructuring Cost and Reserve [Line Items] |
Restructuring Charges Under Exit Or Disposal Plan | 1.5
Restructuring charges, gross | 1.5
Restructuring Reserve [Roll Forward] |
Severance payments and adjustments | 0.0
Other payments | 0.0
Period end balance | 1.5
Two Thousand Seventeen [Member] | Restructuring Action Two Thousand Sixteen [Domain] |
Restructuring Cost and Reserve [Line Items] |
Restructuring Charges Under Exit Or Disposal Plan | 3.3
Restructuring charges, gross | 3.5
Restructuring Reserve [Roll Forward] |
Severance payments and adjustments | (4.7)
Other payments | (0.7)
Period end balance | 3.6
Two Thousand Seventeen [Member] | Fiscal 2015 Actions |
Restructuring Cost and Reserve [Line Items] |
Restructuring charges, gross | 0.0
Restructuring Reserve [Roll Forward] |
Severance payments and adjustments | (0.2)
Other payments | 0.0
Period end balance | 0.0
Two Thousand Seventeen [Member] | Fiscal 2014 Actions |
Restructuring Cost and Reserve [Line Items] |
Restructuring charges, gross | 0.0
Restructuring Reserve [Roll Forward] |
Severance payments and adjustments | 0.0
Other payments | (0.2)
Period end balance | $ 0.4

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Period Type: | duration

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- Definition Payments to settle other restructuring charges. + References No definition available. + Details
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Period Type: | duration

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- Definition Total restructuring charges under exit or disposal plan. + References No definition available. + Details
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- Definition Restructuring charges, gross + References No definition available. + Details
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- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References No definition available. + Details
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- Definition Carrying amount (including both current and noncurrent portions of the accrual) as of the balance sheet date pertaining to a specified type of cost associated with exit from or disposal of business activities or restructuring pursuant to a duly authorized plan. + References Reference 1: 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 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 420 -SubTopic 10 -Section 50 -Paragraph 1 -Subparagraph (b)(2) -URI http://asc.fasb.org/extlink&oid=6394359&loc=d3e17939-110869 + Details
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- Definition A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period. + References No definition available. + Details
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