Intangible Assets and Goodwill Goodwill Narrative (Details) - USD ($) $ in Millions |
Jun. 30, 2017 |
Sep. 30, 2016 |
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| Concentration Risk [Line Items] | ||
| Goodwill | $ 639.1 | $ 634.3 |
| Customer Concentration Risk [Member] | ||
| Concentration Risk [Line Items] | ||
| Reporting Unit, Percentage of Fair Value in Excess of Carrying Amount | 9.00% | |
| Goodwill | $ 71.3 |
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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. No definition available.
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- Definition Amount after accumulated impairment loss of an asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition Percentage of fair value of reporting unit in excess of carrying amount. No definition available.
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- Details
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