Stock-Based Compensation - Nonvested Stock Award Activity (Details)
|
9 Months Ended |
|
Apr. 30, 2017
$ / shares
shares
|
|---|
| Restricted Stock |
|
| Number of Shares |
|
| Nonvested stock awards at the beginning of the period (in shares) |
331,367
|
| Granted (in shares) |
103,201
|
| Cancelled (in shares) |
(4,794)
|
| Vested (in shares) |
(197,313)
|
| Nonvested stock awards at the end of the period (in shares) |
232,461
|
| Weighted Average Fair Value |
|
| Nonvested stock awards at the beginning of the period (in dollars per share) | $ / shares |
$ 46.09
|
| Granted (in dollars per share) | $ / shares |
78.31
|
| Cancelled (in dollars per share) | $ / shares |
58.24
|
| Vested (in dollars per share) | $ / shares |
42.22
|
| Nonvested stock awards at the end of the period (in dollars per share) | $ / shares |
$ 65.20
|
| Time-Based Awards |
|
| Number of Shares |
|
| Nonvested stock awards at the beginning of the period (in shares) |
331,367
|
| Granted (in shares) |
80,591
|
| Cancelled (in shares) |
(4,794)
|
| Vested (in shares) |
(197,313)
|
| Nonvested stock awards at the end of the period (in shares) |
209,851
|
| Sales-Based |
|
| Number of Shares |
|
| Granted (in shares) |
12,810
|
| Nonvested stock awards at the end of the period (in shares) |
12,810
|
| TSR-Based |
|
| Number of Shares |
|
| Granted (in shares) |
9,800
|
| Nonvested stock awards at the end of the period (in shares) |
9,800
|