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Other Required Disclosures - Summarization of Remaining Accrual Balance Associated with Initiatives and Activity (Detail) (USD $) In Millions, unless otherwise specified | 9 Months Ended
--- | ---
Jun. 30, 2013 | Jul. 01, 2012
Restructuring Cost and Reserve [Line Items] |  |  |
Accrual Balance at September 30, 2012 | $ 6.6 |  |
Provisions | 14.0 |  |
Cash Expenditures | (4.6) |  |
Accrual Balance at June 30, 2013 | 16.7 |  |
Expensed as Incurred | 13.7 | [1] |
Non Cash Restructuring And Related Charges | 0.7 |  | (3.0)
Other initiatives [Member] |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |
Accrual Balance at September 30, 2012 | 2.2 |  |
Provisions | 1.6 |  |
Cash Expenditures | (0.3) |  |
Accrual Balance at June 30, 2013 | 4.2 |  |
Expensed as Incurred | 3.6 | [1] |
Non Cash Restructuring And Related Charges | 0.7 |  |
Global Expense Rationalization Initiatives [Member] [Member] |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |
Accrual Balance at September 30, 2012 | 0 |  |
Provisions | 6.8 |  |
Cash Expenditures | (0.1) |  |
Accrual Balance at June 30, 2013 | 6.6 |  |
Expensed as Incurred | 1.1 | [1] |
Non Cash Restructuring And Related Charges | 0 |  |
Global Expense Rationalization Initiatives [Member] [Member] | Termination benefits [Member] |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |
Accrual Balance at September 30, 2012 | 0 |  |
Provisions | 6.8 |  |
Cash Expenditures | (0.1) |  |
Accrual Balance at June 30, 2013 | 6.6 |  |
Expensed as Incurred | 0.8 | [1] |
Non Cash Restructuring And Related Charges | 0 |  |
Global Expense Rationalization Initiatives [Member] [Member] | Other costs [Member] |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |
Accrual Balance at September 30, 2012 | 0 |  |
Provisions | 0 |  |
Cash Expenditures | 0 |  |
Accrual Balance at June 30, 2013 | 0 |  |
Expensed as Incurred | 0.3 | [1] |
Non Cash Restructuring And Related Charges | 0 |  |
Global Cost Reduction Initiatives [Member] |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |
Accrual Balance at September 30, 2012 | 4.4 |  |
Provisions | 5.6 |  |
Cash Expenditures | (4.2) |  |
Accrual Balance at June 30, 2013 | 5.9 |  |
Expensed as Incurred | 9.0 | [1] |
Non Cash Restructuring And Related Charges | 0 |  |
Global Cost Reduction Initiatives [Member] | Termination benefits [Member] |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |
Accrual Balance at September 30, 2012 | 3.3 |  |
Provisions | 5.4 |  |
Cash Expenditures | (3.1) |  |
Accrual Balance at June 30, 2013 | 5.6 |  |
Expensed as Incurred | 1.2 | [1] |
Non Cash Restructuring And Related Charges | 0 |  |
Global Cost Reduction Initiatives [Member] | Other costs [Member] |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |
Accrual Balance at September 30, 2012 | 1.1 |  |
Provisions | 0.2 |  |
Cash Expenditures | (1.1) |  |
Accrual Balance at June 30, 2013 | 0.3 |  |
Expensed as Incurred | 7.8 | [1] |
Non Cash Restructuring And Related Charges | $ 0 |  |
[1] | Consists of amounts not impacting the accrual for restructuring and related charges.

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- Definition Total amount of non-cash restructuring, and related charges. + References No definition available. + Details
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- Definition Restructuring expenses incurred. + References No definition available. + Details
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- Definition Amount of cash payments made as the result of exit or disposal activities. Excludes payments associated with 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 230 -SubTopic 10 -Section 45 -Paragraph 28 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=31042434&loc=d3e3602-108585 + 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 SEC -Name Staff Accounting Bulletin (SAB) -Number Topic 5 -Section P -Subsection 3, 4 + Details
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- Definition Amount of any reversal and other adjustment made during the period to the amount of a previously accrued liability for a specified type of restructuring cost, excluding adjustments for costs incurred during the period, costs settled during the period, and foreign currency translation adjustments. + References Reference 1: 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 2: 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 3: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Staff Accounting Bulletin (SAB) -Number Topic 5 -Section P -Subsection 3, 4 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 420 -SubTopic 10 -Section 40 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6394291&loc=d3e17658-110867 + Details
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