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Debt and Contingent Obligation - Maturity of Long Term Debt (Details)
$ in Thousands
3 Months Ended
Mar. 31, 2020
USD ($)
Debt Instrument [Line Items]  
Repayment of loan as a percentage of Excess cash flow 50.00%
June 30, 2020, September 30, 2020, and December 31, 2020  
Debt Instrument [Line Items]  
Quarterly installment payments on term loans $ 750
March 31, 2021, June 30, 2021, September 30, 2021, and December 31, 2021  
Debt Instrument [Line Items]  
Quarterly installment payments on term loans 1,125
April 30, 2021  
Debt Instrument [Line Items]  
Quarterly installment payments on term loans 750
March 31, 2022, June 30, 2022, September 30, 2022, and December 31, 2022  
Debt Instrument [Line Items]  
Quarterly installment payments on term loans 1,125
March 31, 2023, June 30, 2023, September 30, 2023, and December 31, 2023  
Debt Instrument [Line Items]  
Quarterly installment payments on term loans $ 1,250