Share-Based Compensation (Details 2)
$ / shares in Units, $ in Millions |
3 Months Ended |
9 Months Ended |
|
May 31, 2016
USD ($)
$ / shares
shares
|
May 31, 2016
USD ($)
$ / shares
shares
|
| Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |
|
|
| Options granted | shares |
0
|
4,000
|
| Restricted stock units [Member] |
|
|
| Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |
|
|
| Unrecognized shared-based compensation cost | $ |
$ 39.5
|
$ 39.5
|
| Performance share awards [Member] |
|
|
| Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |
|
|
| Unrecognized shared-based compensation cost | $ |
$ 1.8
|
$ 1.8
|
| Restricted stock units and performance share awards [Member] |
|
|
| Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |
|
|
| Awards granted | shares |
0
|
575,000
|
| Weighted average fair value of granted awards | $ / shares |
|
$ 7.50
|
| Weighted average period unrecognized share-based compensation expected to be recognized |
|
2 years 2 months
|
| Stock options [Member] |
|
|
| Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |
|
|
| Weighted average grant date fair value of options | $ / shares |
|
$ 4.12
|
| Weighted average exercise price of options | $ / shares |
$ 10.35
|
$ 10.35
|
| Unrecognized shared-based compensation cost | $ |
$ 6.8
|
$ 6.8
|
| Weighted average period unrecognized share-based compensation expected to be recognized |
|
2 years 4 months 6 days
|