Quarterly report pursuant to Section 13 or 15(d)

LONG-TERM DEBT - Long-Term Debt (Details)

v3.19.1
LONG-TERM DEBT - Long-Term Debt (Details) - USD ($)
$ in Thousands
Mar. 31, 2019
Dec. 31, 2018
Debt Instrument [Line Items]    
Unamortized discounts and debt issuance costs $ (3,620) $ (3,806)
Long-term debt, net 95,130 95,194
Current portion of long-term debt (1,000) (1,000)
Long-term debt, net of current portion, unamortized discount and issuance costs 94,130 94,194
Senior Secured Notes Due 2024 | Senior Secured Notes    
Debt Instrument [Line Items]    
Outstanding principal $ 98,750 $ 99,000