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DEBT - Principal Payments of Notes Payable (Details) - USD ($)
$ in Thousands
Jun. 30, 2018
Jun. 30, 2017
Debt Instrument [Line Items]    
Total $ 107,212 $ 234,272
Notes payable    
Debt Instrument [Line Items]    
2019 250  
2020 2,046  
2021 3,556  
2022 416  
2023 944  
Thereafter 0  
Total $ 7,212 $ 14,272