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STOCK BASED COMPENSATION (Tables) | 12 Months Ended
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Aug. 31, 2023
Share-Based Payment Arrangement [Abstract] |
Summary of Shares Authorized and Shares Available for Future Grants | The following table summarizes the shares authorized and shares available for future grants:
|  |  | Shares available to grant
| Shares authorized for issuance as of August 31, 2023 (including shares originally authorized for issuance under prior plans) |  | August 31, 2023 |  | August 31, 2022
2013 Plan | 2,317,923 |  | 1,223,574 |  | 549,319
Summary of Components of Stock-Based Compensation Expense | The following table summarizes the components of the stock-based compensation expense for the twelve-month periods ended August 31, 2023, 2022 and 2021 (in thousands), which are included in general and administrative expense and warehouse club and other operations in the consolidated statements of income:
| Years Ended August 31,
| 2023 |  | 2022 |  | 2021
Restricted stock awards | $ | 10,641 |  |  | $ | 9,378 |  |  | $ | 11,010 |
Restricted stock units | 3,701 |  |  | 3,519 |  |  | 3,939 |
Performance-based restricted stock units | 2,232 |  |  | 3,906 |  |  | 3,475 |
Stock-based compensation expense | $ | 16,574 |  |  | $ | 16,803 |  |  | $ | 18,424 |
Summary of Other Information Related to Stock-Based Compensation | The following tables summarize other information related to stock-based compensation:
| Balance as of
| August 31, 2023 |  | August 31, 2022 |  | August 31, 2021
Remaining unrecognized compensation cost (in thousands) | $ | 15,386 |  |  | $ | 18,478 |  |  | $ | 16,349 |
Weighted average period of time over which this cost will be recognized (years) | 2 |  | 2 |  | 2
Summary of Excess Tax Benefit (Deficiency) on Stock-based Compensation |
| Years Ended August 31,
| 2023 |  | 2022 |  | 2021
Excess tax benefit (deficiency) on stock-based compensation (in thousands) | $ | (2,787) |  |  | $ | (2,259) |  |  | $ | (778) |
Summary of Restricted Stock Awards and Units Activity | Restricted stock awards, restricted stock units, and performance-based restricted stock units activity for the twelve-months ended August 31, 2023, 2022 and 2021 was as follows:
| Years Ended
| August 31, 2023 |  | August 31, 2022 |  | August 31, 2021
Grants outstanding at beginning of period | 361,822 |  | 375,622 |  | 415,869
Granted | 365,850 |  | 261,204 |  | 166,160
Forfeited | (118,577) |  | (16,184) |  | (12,436)
Vested | (266,354) |  | (258,820) |  | (193,971)
Grants outstanding at end of period | 342,741 |  | 361,822 |  | 375,622
Summary of Weighted Average Per Share Grant Date Fair Value for Restricted Stock Awards and Units | The following table summarizes the weighted average per share grant date fair value for restricted stock awards, restricted stock units, and performance based restricted stock units for fiscal years 2023, 2022 and 2021:
Weighted Average Grant Date Fair Value |  | Years Ended
| August 31, 2023 |  | August 31, 2022 |  | August 31, 2021
RSAs, RSUs, and PSUs granted |  | $ | 63.93 |  |  | $ | 76.85 |  |  | $ | 79.02 |
RSAs, RSUs, and PSUs vested |  | $ | 70.26 |  |  | $ | 72.69 |  |  | $ | 70.03 |
RSAs, RSUs, and PSUs forfeited |  | $ | 66.14 |  |  | $ | 69.70 |  |  | $ | 70.56 |
Summary of Total Fair Market Value of Restricted Stock Awards and Units Vested | The following table summarizes the total fair market value of restricted stock awards, restricted stock units, and performance based restricted stock units vested for the period (in thousands):
| Years Ended
August 31, 2023 |  | August 31, 2022 |  | August 31, 2021
Total fair market value of restricted stock awards and units vested (in thousands) | $ | 19,325 |  |  | $ | 18,422 |  |  | $ | 17,478 |
Summary of Shares Repurchased | The following table summarizes the equity securities repurchased during fiscal years 2023, 2022 and 2021 as part of the Company's stock-based compensation programs:
| Years Ended
August 31, 2023 |  | August 31, 2022 |  | August 31, 2021
Shares repurchased | 99,998 |  | 88,415 |  | 62,282
Cost of repurchase of shares (in thousands) | $ | 7,245 |  |  | $ | 6,259 |  |  | $ | 5,542 |
Summary of Treasury Shares Reissued | The Company reissues treasury shares as part of its stock-based compensation programs. The following table summarizes the treasury shares reissued during the period:
| Years Ended
August 31, 2023 |  | August 31, 2022 |  | August 31, 2021
Reissued treasury shares | 6,333 |  | 8,314 |  | 96,400

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