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Stock-Based Compensation (Tables) | 12 Months Ended
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Jul. 31, 2017
Stock-Based Compensation [Abstract] |
Schedule of risk free rate based on U.S. Treasury yield curve effect at time of grant |
Year ended July 31 |  | 2017 |  |  | 2015 |
ASSUMPTIONS |  |  |  |  |  |
Average risk-free interest rate |  |  | 1.82 | % |  |  | 1.63 | %
Expected dividend yield |  |  | 5.09 | % |  |  | — |
Expected volatility |  |  | 40.0 | % |  |  | 51.4 | %
Expected term |  |  | 4.0 years |  |  |  | 6.0 years |
Weighted-average grant date fair value |  | $ | 3.26 |  |  | $ | 7.94 |
Summary of stock option activity |
|  | Number of Options (in thousands) |  |  | Weighted- Average Exercise Price |  |  | Weighted- Average Remaining Contractual Term (in years) |  |  | Aggregate Intrinsic Value (in thousands) |
Outstanding at July 31, 2016 |  |  | 360 |  |  | $ | 11.98 |  |  |  |  |  |  |  |  |
Granted |  |  | 1,000 |  |  |  | 14.93 |  |  |  |  |  |  |  |  |
Exercised |  |  | (73 | ) |  |  | 11.37 |  |  |  |  |  |  |  |  |
Cancelled / Forfeited |  |  | (14 | ) |  |  | 17.21 |  |  |  |  |  |  |  |  |
OUTSTANDING AT JULY 31, 2017 |  |  | 1,273 |  |  | $ | 14.28 |  |  |  | 4.9 |  |  | $ | 850 |
EXERCISABLE AT JULY 31, 2017 |  |  | 166 |  |  | $ | 13.38 |  |  |  | 4.4 |  |  | $ | 288 |
Summary of grants of restricted shares of class B common stock |
(in thousands) |  | Number of Non-vested Shares |  |  | Weighted- Average Grant- Date Fair Value |
Non-vested shares at July 31, 2016 |  |  | 359 |  |  | $ | 17.10 |
Granted |  |  | 99 |  |  |  | 19.17 |
Vested |  |  | (228 | ) |  |  | 17.83 |
Forfeited |  |  | (7 | ) |  |  | 17.61 |
NON-VESTED SHARES AT JULY 31, 2017 |  |  | 223 |  |  | $ | 18.16 |

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- Definition Tabular disclosure for share-based compensation plans. Includes, but is not limited to, outstanding awards at beginning and end of year, grants, exercises, forfeitures, and weighted-average grant date fair value. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(2) -URI http://asc.fasb.org/extlink&oid=96867065&loc=d3e5070-113901 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (d) -URI http://asc.fasb.org/extlink&oid=96867065&loc=d3e5070-113901 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (e) -URI http://asc.fasb.org/extlink&oid=96867065&loc=d3e5070-113901 + Details
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- Definition Tabular disclosure of the significant assumptions used during the year to estimate the fair value of stock options, including, but not limited to: (a) expected term of share options and similar instruments, (b) expected volatility of the entity's shares, (c) expected dividends, (d) risk-free rate(s), and (e) discount for post-vesting restrictions. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (f)(2) -URI http://asc.fasb.org/extlink&oid=96867065&loc=d3e5070-113901 + Details
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- Definition Disclosure of the number and weighted-average grant date fair value for restricted stock and restricted stock units that were outstanding at the beginning and end of the year, and the number of restricted stock and restricted stock units that were granted, vested, or forfeited during the year. + References No definition available. + Details
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