Quarterly report pursuant to Section 13 or 15(d)

Debt and Interest (Interest Expense) (Details)

v3.21.2
Debt and Interest (Interest Expense) (Details) - USD ($)
$ in Thousands
 3 Months Ended 6 Months Ended
Jun. 30, 2021
Jun. 30, 2020
Jun. 30, 2021
Jun. 30, 2020
Dec. 31, 2020
Debt Instrument [Line Items]          
Interest expense, interest $ 2,166 $ 2,399 $ 4,046 $ 4,777  
Amortization of fees 594 660 903 1,407  
Interest expense, Total 2,760 3,059 4,949 6,184  
Unamortized debt discount fees 7,737   7,737   $ 8,323
Letter of Credit [Member]          
Debt Instrument [Line Items]          
Interest expense, interest 14 16 23 31  
Amortization of fees 0 0 0 0  
Interest expense, Total 14 16 23 31  
IDB Note Payable [Member]          
Debt Instrument [Line Items]          
Interest expense, interest 0 85 0 169  
Amortization of fees 0 0 0 0  
Interest expense, Total 0 85 0 169  
2017 Subordinated Note Financing [Member]          
Debt Instrument [Line Items]          
Interest expense, interest 0 1,092 0 2,176  
Amortization of fees 0 204 0 516  
Interest expense, Total 0 1,296 0 2,692  
Opus Credit Facility (2019 Notes) [Member]          
Debt Instrument [Line Items]          
Interest expense, interest 0 269 0 538  
Amortization of fees 0 0 0 0  
Interest expense, Total 0 269 0 538  
2018 Venture Notes [Member]          
Debt Instrument [Line Items]          
Interest expense, interest 0 433 0 866  
Amortization of fees 0 186 0 362  
Interest expense, Total 0 619 0 1,228  
Mustang Horizon Notes [Member]          
Debt Instrument [Line Items]          
Interest expense, interest 0 349 0 690  
Amortization of fees 0 270 0 529  
Interest expense, Total 0 619 0 1,219  
Oaktree Note [Member]          
Debt Instrument [Line Items]          
Interest expense, interest 1,669 0 3,319 0  
Amortization of fees 324 0 633 0  
Interest expense, Total 1,993 0 3,952 0  
Partner Company Dividend Payable [Member]          
Debt Instrument [Line Items]          
Interest expense, interest 263 0 263 0  
Amortization of fees 0 0 0 0  
Interest expense, Total 263 0 263 0  
Partner Company Convertible Preferred Shares [Member]          
Debt Instrument [Line Items]          
Interest expense, interest 0 0 0 0  
Amortization of fees 270 0 270 0  
Interest expense, Total 270 0 270 0  
NSC Note [Member]          
Debt Instrument [Line Items]          
Interest expense, interest 220 155 441 305  
Amortization of fees 0 0 0 0  
Interest expense, Total 220 155 441 305  
Other Debt [Member]          
Debt Instrument [Line Items]          
Interest expense, interest 0 0 0 2  
Amortization of fees 0 0 0 0  
Interest expense, Total $ 0 $ 0 $ 0 $ 2