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DERIVATIVE INSTRUMENTS AND HEDGING ACTIVITIES - Fair Value in the Condensed Consolidated Balance Sheets (Details) - USD ($) $ in Thousands	9 Months Ended
	Mar. 31, 2021	Jun. 30, 2020
Foreign currency forward contracts
Derivatives, Fair Value [Line Items]
Notional amount of forward contracts held to sell U.S. dollars in exchange for Canadian dollars	$ 65,000	$ 62,300
Prepaid expenses and other current assets \| Cash Flow Hedging \| Designated As Hedging Instrument \| Foreign currency forward contracts
Derivatives, Fair Value [Line Items]
Fair value asset	$ 2,151
Accounts payable and accrued liabilities \| Cash Flow Hedging \| Designated As Hedging Instrument \| Foreign currency forward contracts
Derivatives, Fair Value [Line Items]
Fair value liability		$ (185)
Minimum
Derivatives, Fair Value [Line Items]
Contract maturity	1 month
Maximum
Derivatives, Fair Value [Line Items]
Contract maturity	12 months