Stock-Based Compensation Summary of Restricted Stock Transactions (Details) - Restricted Stock shares in Thousands |
9 Months Ended |
|---|---|
|
Apr. 30, 2016
$ / shares
shares
| |
| Share-based Compensation Arrangement by Share-based Payment Award | |
| Non-vested restricted stock outstanding, beginning balance | shares | 74 |
| Granted, number of shares | shares | 165 |
| Vested, number of shares | shares | (31) |
| Forfeitures, number of shares | shares | (2) |
| Non-vested restricted stock outstanding, ending balance | shares | 206 |
| Non-vested restricted stock outstanding, weighted average grant date fair value, beginning balance | $ / shares | $ 28.83 |
| Granted, weighted average grant date fair value | $ / shares | 28.59 |
| Vested, weighted average grant date fair value | $ / shares | 23.56 |
| Forfeitures, weighted average grant date fair value | $ / shares | 31.86 |
| Non-vested restricted stock outstanding, weighted average grant date fair value, ending balance | $ / shares | $ 29.39 |