LEASES - Property and Equipment Costs (Details) - USD ($) $ in Thousands	Jun. 30, 2021	Jun. 30, 2020
Leases [Abstract]
Cost	$ 26,753	$ 32,445
Accumulated depreciation	(24,487)	(27,745)
Net	$ 2,266	$ 4,700

Amount of accumulated depreciation of lessor's underlying asset for which right to use has been conveyed to lessee under operating lease.

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Name:	us-gaap_PropertySubjectToOrAvailableForOperatingLeaseAccumulatedDepreciation
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant