STOCK BASED COMPENSATION (Tables)

12 Months Ended

Aug. 31, 2021

STOCK BASED COMPENSATION [Abstract]

Summary of Shares Authorized and Shares Available for Future Grants

		Shares available to grant
	Shares authorized for issuance as of August 31, 2021	August 31,		August 31,
	(including shares originally authorized for issuance under prior plans)	2021		2020
2013 Plan	1,562,832		705,924		297,366

Summary of Components of Stock-Based Compensation Expense

	Years Ended August 31,
	2021		2020		2019
Restricted stock awards	$	11,010	$	8,747	$	11,477
Restricted stock units		3,939		3,011		2,820
Performance-based restricted stock units		3,475		2,059		764
Stock-based compensation expense	$	18,424	$	13,817	$	15,061

Summary of Other Information Related to Stock-Based Compensation

	Balance as of
	August 31,		August 31,		August 31,
	2021		2020		2019
Remaining unrecognized compensation cost (in thousands)	$	16,349	$	21,720	$	21,116
Weighted average period of time over which this cost will be recognized (years)		2		2		3

	Years Ended
	August 31,		August 31,		August 31,
	2021		2020		2019
Excess tax deficiency on stock-based compensation (in thousands)	$	(778)	$	(936)	$	(1,829)

Summary of Restricted Stock Awards and Units Activity

	Years Ended
	August 31,		August 31,		August 31,
	2021		2020		2019
Grants outstanding at beginning of period		415,869		362,826		385,417
Granted		166,160		266,759		193,489
Forfeited		(12,436)		(43,198)		(16,127)
Vested		(193,971)		(170,518)		(199,953)
Grants outstanding at end of period		375,622		415,869		362,826

Summary of Weighted Average Per Share Grant Date Fair Value for Restricted Stock Awards and Units

	Years Ended
	August 31,		August 31,		August 31,
Weighted Average Grant Date Fair Value	2021		2020		2019
RSAs, RSUs, and PSUs granted	$	79.02	$	64.57	$	65.11
RSAs, RSUs, and PSUs vested	$	70.03	$	72.82	$	79.28
RSAs, RSUs, and PSUs forfeited	$	70.56	$	76.81	$	75.02

Summary of Total Fair Market Value of Restricted Stock Awards and Units Vested

	Years Ended
	August 31,		August 31,		August 31,
	2021		2020		2019
Total fair market value of RSAs, RSUs, and PSUs vested (in thousands)	$	17,478	$	10,914	$	12,302

Summary of Shares Repurchased

	Years Ended
	August 31,		August 31,		August 31,
	2021		2020		2019
Shares repurchased		62,282		56,503		75,462
Cost of repurchase of shares (in thousands)	$	5,542	$	3,651	$	4,604

Summary of Treasury Shares Reissued

	Years Ended
	August 31,		August 31,		August 31,
	2021		2020		2019
Reissued treasury shares		96,400		234,370		63,130