XML 73 R40.htm IDEA: XBRL DOCUMENT v3.20.1
Debt and Contingent Obligations - Maturity of Long Term Debt (Details) - Secured Debt - Xcel Term Loan
$ in Thousands
12 Months Ended
Dec. 31, 2019
USD ($)
Debt Instrument [Line Items]  
Repayment of loan as a percentage of Excess cash flow 50.00%
Minimum [Member]  
Debt Instrument [Line Items]  
Variable repayments $ 2,000
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