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STOCK BASED COMPENSATION (Tables)
 12 Months Ended
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 Plan2,317,9231,223,574549,319
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,
202320222021
Restricted stock awards$10,641 $9,378 $11,010 
Restricted stock units3,701 3,519 3,939 
Performance-based restricted stock units2,232 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 $16,349 
Weighted average period of time over which this cost will be recognized (years)222
Summary of Excess Tax Benefit (Deficiency) on Stock-based Compensation
Years Ended August 31,
202320222021
Excess tax benefit (deficiency) on stock-based compensation (in thousands)$(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 period361,822375,622415,869
Granted365,850261,204166,160
Forfeited(118,577)(16,184)(12,436)
Vested(266,354)(258,820)(193,971)
Grants outstanding at end of period342,741361,822375,622
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 ValueYears 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 repurchased99,99888,41562,282
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 shares6,3338,31496,400