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DESCRIPTION OF BUSINESS AND SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - Accounting for Non-qualified Deferred Compensation Plan (Details) - USD ($) $ in Millions | 12 Months Ended
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Jun. 30, 2025 | Jun. 30, 2024 | Jun. 30, 2023
Deferred Compensation Arrangement with Individual, Excluding Share-based Payments and Postretirement Benefits [Line Items] |  |  |
Non-qualified deferred compensation plan payout period | 15 years |  |
SG&A |  |  |
Deferred Compensation Arrangement with Individual, Excluding Share-based Payments and Postretirement Benefits [Line Items] |  |  |
Executive deferred compensation program, compensation expense | $ 41.5 | $ 37.2 | $ 27.6
Net gains on Deferred Savings Plan assets | $ 40.7 | $ 36.6 | $ 27.6

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