INCOME TAXES - Narrative (Details) - USD ($) $ in Thousands	12 Months Ended
	Jun. 30, 2025	Jun. 30, 2024	Jun. 30, 2023
Income Taxes
Operating loss carryforwards, subject to expiration	$ 9,600
Operating loss carryforwards, not subject to expiration	90,600
Tax credit carryforward amount subject to expiration	37,400
Undistributed earnings of international subsidiaries	20
Reserve on unrecognized tax benefits that would benefit the effective tax rate	700
Interest and penalties	100	$ 100	$ 100
Accrued interest and penalties related to unrecognized tax benefits	700
Capital loss carryforward
Income Taxes
Tax credit carryforward amount subject to expiration	5,900
Domestic Tax Authority
Income Taxes
Operating loss carryforwards	100,200
Uncertain tax positions	17,600
State and Local Jurisdiction
Income Taxes
Operating loss carryforwards	26,900
Operating loss carryforwards, subject to expiration	23,400
Operating loss carryforwards, not subject to expiration	3,500
Uncertain tax positions	2,000
Foreign Tax Authority | Canada
Income Taxes
Operating loss carryforwards	9,100
Foreign Tax Authority | U.K.
Income Taxes
Operating loss carryforwards	$ 300