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LONG TERM DEBT - Aggregate Maturities of Long-Term Debt (Detail 3) - USD ($)
$ in Thousands
Jun. 30, 2018
Jun. 30, 2017
Long Term Debt [Abstract]    
2019 $ 46,920  
2020 46,920  
2021 46,920  
2022 93,839  
2023 838,795  
Principal amount of long-term debt 1,073,394 $ 1,243,867
Less unamortized discounts and debt issuance costs (11,054) (12,304)
Total long-term debt $ 1,062,340 $ 1,231,563