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RESTRUCTURING (Details) $ in Thousands			3 Months Ended			6 Months Ended
RESTRUCTURING (Details) $ in Thousands	Jul. 13, 2020 USD ($) employee	Apr. 09, 2020 employee	Sep. 30, 2020 USD ($)	Jun. 30, 2020 USD ($)	Jun. 30, 2019 USD ($)	Jun. 30, 2020 USD ($)	Jun. 30, 2019 USD ($)
Restructuring Cost and Reserve [Line Items]
Number of positions eliminated \| employee		1,000
Number of positions furloughed \| employee		1,100
Restructuring				$ 3,312	$ 0	$ 3,312	$ 0
Severance, Payroll Taxes and Related Benefit Costs
Restructuring Cost and Reserve [Line Items]
Payments for restructuring				$ 3,100
Subsequent Event
Restructuring Cost and Reserve [Line Items]
Restructuring	$ 400
Workforce reduction \| employee	60
Subsequent Event \| Severance, Payroll Taxes and Related Benefit Costs
Restructuring Cost and Reserve [Line Items]
Payments for restructuring			$ 200