Quarterly report pursuant to Section 13 or 15(d)

Borrowings - Schedule of Borrowings (Details)

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Borrowings - Schedule of Borrowings (Details) - USD ($)
$ in Thousands
 3 Months Ended
Mar. 31, 2020
Mar. 31, 2019
Dec. 31, 2019
May 23, 2019
Debt Instrument [Line Items]        
Principal repayment obligation and other fees $ 133,130   $ 144,955  
Unamortized deferred financing costs, discounts and fees (4,541)   (8,306)  
Total borrowings 128,589   136,649  
Interest elected to be paid-in-kind 130 $ 0    
Amended 2019 Term Loan, due November 2021        
Debt Instrument [Line Items]        
Principal repayment obligation and other fees 73,130   84,955  
Unamortized deferred financing costs, discounts and fees (2,931)   (6,427)  
Total borrowings 70,199   78,528  
2018 Term Loan, due September 2021        
Debt Instrument [Line Items]        
Principal repayment obligation and other fees 60,000   60,000  
Unamortized deferred financing costs, discounts and fees (1,610)   (1,879)  
Total borrowings 58,390   $ 58,121  
2019 Term Loan        
Debt Instrument [Line Items]        
Interest elected to be paid-in-kind $ 100 $ 1,800    
Term loan | 2019 Term Loan        
Debt Instrument [Line Items]        
Final payment fee (as a percentage)       20.00%