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Stock-Based Awards | 6 Months Ended
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Jan. 23, 2016
Disclosure of Compensation Related Costs, Share-based Payments [Abstract] |
Stock-Based Awards | Stock-Based Awards The Company has certain stock-based compensation plans which provide for the grants of stock-based awards, including stock options, restricted shares, performance shares, restricted share units, performance share units, and stock appreciation rights. Compensation expense for stock-based awards is based on fair value at the measurement date and fluctuates over time as a result of the vesting period of the stock-based awards and Company's performance, as measured by criteria set forth in the performance-based awards. Expense is included in general and administrative expenses in the condensed consolidated statements of operations and the amount of expense ultimately recognized is based on the number of awards that actually vest. For performance-based restricted share units ("Performance RSUs"), the Company evaluates compensation expense quarterly and recognizes expense for performance-based awards only if it determines it is probable that performance criteria for the awards will be met. Accordingly, future stock-based compensation expense may vary from fiscal year to fiscal year. Stock-based compensation expense and the related tax benefit recognized related to stock options and restricted share units during the three and six months ended January 23, 2016 and January 24, 2015 were as follows:
| For the Three Months Ended |  | For the Six Months Ended
| January 23, 2016 |  | January 24, 2015 |  | January 23, 2016 |  | January 24, 2015
| (Dollars in thousands)
Stock-based compensation | $ | 4,200 |  |  | $ | 3,664 |  |  | $ | 8,708 |  |  | $ | 7,554 |
Tax benefit recognized in the statement of operations | $ | 1,613 |  |  | $ | 1,508 |  |  | $ | 3,342 |  |  | $ | 2,973 |
As of January 23, 2016, the Company had total unrecognized compensation expense of $34.2 million related to stock options, time-based restricted share units ("RSUs") and target Performance RSUs (based on the Company's estimate of performance goal achievement) of $3.8 million, $9.9 million, and $20.5 million, respectively. This expense will be recognized over a weighted-average period of 2.9 years, 2.9 years, and 1.7 years, respectively, based on the average remaining service periods for the awards. As of January 23, 2016, the Company may recognize an additional $6.9 million in compensation expense in future periods if the maximum amount of Performance RSUs is earned based on certain performance goals being met. Stock Options The following table summarizes stock option award activity during the six months ended January 23, 2016:
| Stock Options
| Shares |  | Weighted Average Exercise Price
Outstanding as of July 25, 2015 | 915,323 |  |  | $ | 16.86 |
Granted | 35,863 |  |  | $ | 78.20 |
Options exercised | (139,481 | ) |  | $ | 12.55 |
Canceled | (800 | ) |  | $ | 13.88 |
Outstanding as of January 23, 2016 | 810,905 |  |  | $ | 20.32 |
Exercisable options as of January 23, 2016 | 627,133 |  |  | $ | 15.39 |
RSUs and Performance RSUs The following table summarizes RSU and Performance RSU award activity during the six months ended January 23, 2016:
| Restricted Stock
| RSUs |  | Performance RSUs
| Share Units |  | Weighted Average Grant Price |  | Share Units |  | Weighted Average Grant Price
Outstanding as of July 25, 2015 | 322,008 |  |  | $ | 24.46 |  |  | 945,540 |  |  | $ | 26.46 |
Granted | 82,043 |  |  | $ | 73.25 |  |  | 238,209 |  |  | $ | 77.86 |
Share units vested | (122,154 | ) |  | $ | 23.55 |  |  | (361,998 | ) |  | $ | 25.28 |
Forfeited or canceled | (9,960 | ) |  | $ | 21.16 |  |  | (181,426 | ) |  | $ | 21.76 |
Outstanding as of January 23, 2016 | 271,937 |  |  | $ | 39.72 |  |  | 640,325 |  |  | $ | 47.58 |
The total amount of granted Performance RSUs presented above consists of 170,304 target shares granted to officers and employees and 67,905 supplemental shares granted to officers of the Company and its subsidiaries. During fiscal 2016, the Company canceled approximately 169,790 supplemental shares of Performance RSUs outstanding as of July 25, 2015, as a result of fiscal 2015 performance criteria for attaining supplemental shares not being met. The total amount of Performance RSUs outstanding as of January 23, 2016 consists of 513,973 target shares and 126,352 supplemental shares.

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- Definition The entire disclosure for compensation-related costs for equity-based compensation, which may include disclosure of policies, compensation plan details, allocation of equity compensation, incentive distributions, equity-based arrangements to obtain goods and services, deferred compensation arrangements, employee stock ownership plan details and employee stock purchase plan details. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 40 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6418621&loc=d3e17540-113929 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 50 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=51659978&loc=d3e25284-112666 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5047-113901 Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 4 -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5444-113901 Reference 6: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Staff Accounting Bulletin (SAB) -Number Topic 14 + Details
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