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STOCK-BASED COMPENSATION PLANS (Narrative) (Details) $ in Millions	12 Months Ended
	Aug. 31, 2024 USD ($) Interval shares	Aug. 31, 2023 USD ($) shares	Aug. 31, 2022 USD ($) shares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock-based compensation expense \| $	$ 45.1	$ 60.5	$ 47.0
Stock-based compensation expense, tax \| $	10.6	14.2	9.3
Total unrecognized compensation cost \| $	$ 21.3
Period of unrecognized compensation to be recognized	1 year 9 months 18 days
Shares available for future grants	3,145,024
Fair value of shares vested \| $	$ 47.8	$ 41.0	$ 30.5
Restricted stock units
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Restricted stock awards and performance stock units, granted, shares	524,943	633,898	652,951
Restricted stock units \| United States
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Award vesting frequency \| Interval	3
Performance Awards
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Restricted stock awards and performance stock units, granted, shares	244,931	335,746	328,734
Performance Awards \| Minimum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Payout percentage	50.00%
Performance Awards \| Maximum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Payout percentage	200.00%
Performance Awards \| EBITDA
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Percentage that performance targets are weighted		75.00%
Performance Awards \| Relative total stockholder return
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Percentage that performance targets are weighted		25.00%
Liability awards
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Restricted stock awards and performance stock units, granted, shares	188,453	269,052
Equivalent number of awards outstanding	455,667
Equivalent number of shares expected to vest	432,884
Employee stock purchase plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares available for future grants	1,437,154
Maximum number of shares per employee	500
Purchase discount from market price	15.00%	15.00%	15.00%