EMPLOYEES' RETIREMENT PLANS (Benefit Obligation and Fair Value of Plan Assets) (Details) - USD ($) $ in Thousands	12 Months Ended
	Aug. 31, 2022	Aug. 31, 2021	Aug. 31, 2020
U.K. Pension Plan
Defined Benefit Plan, Change in Benefit Obligation [Roll Forward]
Benefit obligation at beginning of year	$ 0
Acquisition	68,966
Service cost	0
Interest cost	635
Amortization of net actuarial gain	(11,107)
Benefits paid	(942)
Defined Benefit Plan, Benefit Obligation, Foreign Currency Translation Gain (Loss)	5,510
Benefit obligation at end of year	52,042	$ 0
Defined Benefit Plan, Change in Fair Value of Plan Assets [Roll Forward]
Fair value of plan assets at beginning of year	0
Acquisition	83,586
Actual return on plan assets	(15,718)
Administrative expenses	0
Employer contributions	73
Benefits paid	(942)
Defined Benefit Plan, Plan Assets, Foreign Currency Translation Gain (Loss)	6,545
Fair value of plan assets at end of year	60,454	0
Funded status at end of year (net asset (liability) recognized in the consolidated balance sheets as of August 31,)	8,412
Net actuarial (gain) loss	5,666
U.S. Pension Plan
Defined Benefit Plan, Change in Benefit Obligation [Roll Forward]
Benefit obligation at beginning of year	33,687	36,130
Acquisition	0	0
Service cost	0	0	$ 335
Interest cost	709	724	892
Amortization of net actuarial gain	(6,010)	(1,557)
Benefits paid	(1,818)	(1,610)
Defined Benefit Plan, Benefit Obligation, Foreign Currency Translation Gain (Loss)	0	0
Benefit obligation at end of year	26,568	33,687	36,130
Defined Benefit Plan, Change in Fair Value of Plan Assets [Roll Forward]
Fair value of plan assets at beginning of year	34,126	29,201
Acquisition	0	0
Actual return on plan assets	(7,407)	4,042
Administrative expenses	(461)	(52)
Employer contributions	0	2,545
Benefits paid	(1,818)	(1,610)
Defined Benefit Plan, Plan Assets, Foreign Currency Translation Gain (Loss)	0	0
Fair value of plan assets at end of year	24,440	34,126	$ 29,201
Funded status at end of year (net asset (liability) recognized in the consolidated balance sheets as of August 31,)	(2,128)	439
Net actuarial (gain) loss	$ 2,278	$ (1,110)