Quarterly report pursuant to Section 13 or 15(d)

FAIR VALUE OF FINANCIAL INSTRUMENTS - Schedule of Fair Value of Financial Liabilities (Details)

v3.19.2
FAIR VALUE OF FINANCIAL INSTRUMENTS - Schedule of Fair Value of Financial Liabilities (Details) - USD ($)
$ in Thousands
Sep. 30, 2018
Mar. 31, 2018
Long-term Debt, Unclassified [Abstract]    
Long-term Debt $ 0 $ 115,986
Carrying Value    
Long-term Debt, Unclassified [Abstract]    
Long-term Debt [1] 127,851 123,531
Fair Value    
Long-term Debt, Unclassified [Abstract]    
Long-term Debt, Fair Value [1] 127,851 117,747
TCW Term Loan | Carrying Value    
Long-term Debt, Unclassified [Abstract]    
Long-term Debt [1] 105,849 90,424
TCW Term Loan | Fair Value    
Long-term Debt, Unclassified [Abstract]    
Long-term Debt, Fair Value [1] 105,849 90,424
PNC Credit Facility | Carrying Value    
Long-term Debt, Unclassified [Abstract]    
Long-term Debt [1] 22,002 33,107
PNC Credit Facility | Fair Value    
Long-term Debt, Unclassified [Abstract]    
Long-term Debt, Fair Value [1] $ 22,002 $ 27,323
[1] Fair value based on outstanding borrowings and market interest rates (level 2)