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STOCK-BASED COMPENSATION PLANS (Narrative) (Details) $ in Millions	12 Months Ended
	Aug. 31, 2026 USD ($) Interval shares	Aug. 31, 2025 USD ($) shares	Aug. 31, 2024 USD ($) shares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock-based compensation expense \| $	$ 43.9	$ 37.1	$ 45.1
Stock-based compensation expense, tax \| $	3.4	7.9	10.6
Total unrecognized compensation cost \| $	$ 24.9
Period of unrecognized compensation to be recognized	1 year 3 days
Shares available for future grants (in shares)	2,256,311
Fair value of shares vested \| $	$ 37.4	$ 44.2	$ 47.8
Restricted stock units
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Restricted stock awards and performance stock units, granted, (in shares)	527,702	521,295	524,943
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, (in shares)	215,595	226,405	244,931
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	50.00%	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	50.00%	25.00%
Metric period	3 years	3 years
Liability awards
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Restricted stock awards and performance stock units, granted, (in shares)	107,771	172,992
Equivalent number of awards outstanding (in shares)	256,100
Equivalent number of shares expected to vest (in shares)	248,367
Employee stock purchase plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares available for future grants (in shares)	1,033,871
Maximum number of shares per employee	500
Purchase discount from market price	15.00%	15.00%	15.00%