STOCK-BASED COMPENSATION - Narrative (Details) $ / shares in Units, $ in Millions	12 Months Ended
	Jun. 30, 2025 USD ($) plan $ / shares shares	Jun. 30, 2024 USD ($) $ / shares	Jun. 30, 2023 USD ($) $ / shares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of active stock based compensation plans | plan	3
Weighted average grant date fair value (in USD per share) | $ / shares	$ 3.10	$ 4.02	$ 2.89
Fair value of stock options vested	$ 3.2	$ 4.5	$ 3.8
Stock-based compensation expense, tax benefits recognized	$ 0.7	$ 0.5	$ 1.4
Stock options
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based compensation vesting period	3 years
Share-based compensation termination period	7 years
Long-term Stock Incentive Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based compensation vesting period	3 years
RSUs | Minimum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based compensation vesting period	1 year
RSUs | Maximum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based compensation vesting period	3 years
2018 Equity Incentive Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Total options available for future issuance (in shares) | shares	3,854,289