Share-Based Compensation (Narratives) (Details) |
6 Months Ended |
---|---|
Mar. 31, 2017
$ / shares
shares
| |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] | |
Shares available for future grant | 4,815,869 |
Market-Based Deferred Stock Unit [Member] | |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] | |
Number of units/shares granted | 116,740 |
Weighted average grant date fair value (in dollars per unit/share) | $ / shares | $ 156.87 |
Time-Based Deferred Stock Unit [Member] | |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] | |
Number of units/shares granted | 152,541 |
Weighted average grant date fair value (in dollars per unit/share) | $ / shares | $ 143.66 |