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LEASES - Property and Equipment Costs (Details) - USD ($)
$ in Thousands
Sep. 30, 2019
Jun. 30, 2019
Property, Plant and Equipment [Line Items]    
Net $ 7,697 $ 9,180
Assets Leased to Others    
Property, Plant and Equipment [Line Items]    
Cost 30,503  
Accumulated depreciation (26,417)  
Net $ 4,086  
Cost   36,285
Accumulated depreciation   (30,978)
Net   $ 5,307