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Goodwill And Other Intangible Assets (Schedule Of Intangible Assets Gross Carrying Amounts And Accumulated Amortization) (Details) (USD $) | Sep. 30, 2014 | Sep. 30, 2013 | Sep. 30, 2012
--- | --- | --- | ---
Goodwill and Other Intangible Assets [Line Items] |  |  |
Goodwill | $ 282,337,000 | $ 282,949,000 | $ 279,600,000
Customer Relationships [Member] |  |  |
Goodwill and Other Intangible Assets [Line Items] |  |  |
Gross carrying amount | 64,100,000 | 64,100,000 |
Less: accumulated amortization | 21,200,000 | 17,900,000 |
Net | 42,900,000 | 46,200,000 |
Other Intangible Assets [Member] |  |  |
Goodwill and Other Intangible Assets [Line Items] |  |  |
Gross carrying amount | 400,000 | 400,000 |
Less: accumulated amortization | 200,000 | 200,000 |
Net | 200,000 | 200,000 |
Patents [Member] |  |  |
Goodwill and Other Intangible Assets [Line Items] |  |  |
Gross carrying amount | 1,000,000 | 900,000 |
Less: accumulated amortization | 800,000 | 600,000 |
Net | 200,000 | 300,000 |
Capitalized Software [Member] |  |  |
Goodwill and Other Intangible Assets [Line Items] |  |  |
Gross carrying amount | 37,400,000 | 28,700,000 |
Less: accumulated amortization | 15,200,000 | 11,900,000 |
Net | 22,200,000 | 16,800,000 |
Trade names |  |  |
Goodwill and Other Intangible Assets [Line Items] |  |  |
Trade names | $ 116,600,000 | $ 116,700,000 |

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