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Summary Of Significant Accounting Policies (Deferred Revenue) (Details) (USD $)
In Thousands, unless otherwise specified |
Sep. 30, 2014
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Sep. 30, 2013
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|---|---|---|
| Deferred Revenue Arrangement [Line Items] | ||
| Deferred revenue | $ 382,544 | $ 336,913 |
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Deferred Maintenance Revenue [Member]
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| Deferred Revenue Arrangement [Line Items] | ||
| Deferred revenue | 335,827 | 312,721 |
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Deferred Other Service Revenue [Member]
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| Deferred Revenue Arrangement [Line Items] | ||
| Deferred revenue | 19,775 | 18,793 |
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Deferred License Revenue [Member]
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| Deferred Revenue Arrangement [Line Items] | ||
| Deferred revenue | $ 26,942 | $ 5,399 |