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Stock-Based Compensation and Shares Repurchases | 6 Months Ended
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Feb. 28, 2018
Disclosure of Compensation Related Costs, Share-based Payments [Abstract] |
Stock-Based Compensation and Shares Repurchases | Stock-Based Compensation and Share Repurchases The Company recognized stock-based compensation expense within selling, general and administrative expense as follows (in thousands):
| Three months ended |  | Six months ended
| February 28, 2018 |  | February 28, 2017 |  | February 28, 2018 |  | February 28, 2017
Restricted stock and stock appreciation rights | $ | 12,952 |  |  | $ | 13,751 |  |  | $ | 56,459 |  |  | $ | 11,710 |
Employee stock purchase plan | 2,087 |  |  | 1,567 |  |  | 3,787 |  |  | 3,317 |
Other(1) | — |  |  | — |  |  | 7,538 |  |  | — |
Total | $ | 15,039 |  |  | $ | 15,318 |  |  | $ | 67,784 |  |  | $ | 15,027 |
(1) | Represents a one-time cash-settled stock award that vested on November 30, 2017.
As of February 28, 2018, the shares available to be issued under the 2011 Stock Award and Incentive Plan were 12,573,989. Restricted Stock Awards Certain key employees have been granted time-based, performance-based and market-based restricted stock unit awards. The time-based restricted stock units generally vest on a graded vesting schedule over three years. The performance-based restricted stock units generally vest on a cliff vesting schedule over three years and up to a maximum of 150%, depending on the specified performance condition and the level of achievement obtained. The performance-based restricted stock units have a vesting condition that is based upon the Company's cumulative adjusted core earnings per share during the performance period. The market-based restricted stock units generally vest on a cliff vesting schedule over three years and up to a maximum of 200%, depending on the specified performance condition and the level of achievement obtained. The market-based restricted stock units have a vesting condition that is tied to the Company’s total shareholder return based on the Company's stock performance in relation to the companies in the Standard and Poor’s (S&P) Super Composite Technology Hardware and Equipment Index excluding the Company. During the six months ended February 28, 2018 and 2017, the Company awarded approximately 1.4 million and 1.8 million time-based restricted stock units, respectively, 0.4 million and 0.6 million performance-based restricted stock units, respectively and 0.4 million and 0.4 million market-based stock units, respectively. On October 6, 2017, the Company’s Compensation Committee approved the modification of vesting criteria for certain performance-based restricted stock awards granted in fiscal year 2015. As a result of the modification, 0.8 million awards vested during the first quarter of fiscal year 2018, which resulted in approximately $24.9 million of stock-based compensation expense recognized. The following represents the stock-based compensation information for the period indicated (in thousands):
| February 28, 2018
Unrecognized stock-based compensation expense—restricted stock | $ | 68,280 |
Remaining weighted-average period for restricted stock expense | 1.5 years |
Share Repurchases In July 2017, the Company’s Board of Directors authorized the repurchase of up to $450.0 million of the Company’s common stock (the “2017 Share Repurchase Program”). The 2017 Share Repurchase Program expires on August 31, 2018. As of February 28, 2018, 8.2 million shares had been repurchased for $225.0 million and $225.0 million remains available under the 2017 Share Repurchase Program.

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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 -URI http://asc.fasb.org/topic&trid=2228938 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 50 -URI http://asc.fasb.org/subtopic&trid=2208855 + Details
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