Stock-Based Compensation (Schedule Of Equity Based Awards (Including Stock Options And Restricted Stock Units)) (Details) - Equity Based Awards [Member] |
12 Months Ended |
---|---|
Sep. 30, 2017
shares
| |
Awards Available for Grant | |
Awards Available for Grant, Beginning balance | 3,195,747 |
Awards Available for Grant, Granted | (1,425,787) |
Awards Available for Grant, Cancelled | 216,055 |
Additional shares reserved (terminated), net | 1,095,270 |
Awards Available for Grant, Ending balance | 3,081,285 |