REVENUES - Incremental Costs of Obtaining a Contract with a Customer (Details) - USD ($)	3 Months Ended
	Sep. 30, 2020	Sep. 30, 2019
Capitalized Contract Cost [Roll Forward]
Capitalized costs to obtain a contract, beginning balance	$ 61,163,000
New capitalized costs incurred	6,230,000
Amortization of capitalized costs	(4,988,000)
Adjustments on account of foreign exchange	769,000
Capitalized costs to obtain a contract, ending balance	63,174,000
Impairment loss	$ 0	$ 0