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Commitments And Contingencies (Narrative) (Details) - USD ($) $ in Millions | 3 Months Ended | 12 Months Ended | 60 Months Ended
--- | --- | --- | ---
Jan. 01, 2011 | Sep. 30, 2016 | Sep. 30, 2015 | Sep. 30, 2014 | Sep. 30, 2015
Commitments And Contingencies [Line Items] |  |  |  |  |
Lease expense, net of sublease income |  | $ 37.2 | $ 36.9 | $ 38.6 |
Lease renewal term | 10 years |  |  |  |
Annual base rent plus operating expenses |  | $ 7.4 |  |  |
Additional term of lease renewal |  | 10 years |  |  |
Landlord reimbursements |  |  |  | $ 12.8 |
Letters of credit and bank guarantees outstanding |  | $ 4.2 | 4.0 |  | $ 4.0
Bank guarantees outstanding collateralized |  | 1.2 | 1.1 |  | 1.1
Pending or Threatened Litigation [Member] |  |  |  |  |
Commitments And Contingencies [Line Items] |  |  |  |  |
Loss contingency accrual |  | $ 3.6 | 30.5 |  | $ 30.5
Korea |  |  |  |  |
Commitments And Contingencies [Line Items] |  |  |  |  |
Income Tax Examination, Description |  | 12 |  |  | 12
China Matter [Member] |  |  |  |  |
Commitments And Contingencies [Line Items] |  |  |  |  |
Loss contingency accrual |  |  | $ 28.2 |  | $ 28.2

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- Definition Collateralized letters of credit outstanding + References No definition available. + Details
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- Definition A brief description of status of the tax examination, significant findings to date, and the entity's position with respect to the findings. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 15 -Subparagraph (d)(2) -URI http://asc.fasb.org/extlink&oid=6907707&loc=d3e32718-109319 + Details
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- Definition Term of the lessee's leasing arrangement renewal, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. + References No definition available. + Details
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