Annual report pursuant to Section 13 and 15(d)

SUPPLEMENTAL CASH FLOW INFORMATION- Supplemental Disclosure of Cash Flow Information (Details)

v3.20.4
SUPPLEMENTAL CASH FLOW INFORMATION- Supplemental Disclosure of Cash Flow Information (Details) - USD ($)
$ in Thousands
 12 Months Ended
Dec. 31, 2020
Dec. 31, 2019
Dec. 31, 2018
Supplemental Cash Flow Information [Abstract]      
Non-cash accruals of property, plant and equipment and other non-current assets $ 8,370 $ 11,759 $ 8,630
Non-cash settlement of Final Payment Fee (Note 9) 8,539 0 0
Future proceeds from sale of Magellan Petroleum UK 0 1,384 0
Tradable equity securities 0 5,069 0
Non-cash settlement of withholding taxes associated with the 2019, 2018 and 2017 bonus paid and vesting of certain awards, respectively 1,659 6,686 5,733
Non-cash settlement of the 2019, 2018 and 2017 bonus paid, respectively 7,602 18,396 15,202
Asset retirement obligation additions and revisions 0 $ 182 $ 115
Noncash activities related to debt amendment 78,500    
Noncash activities related to replacement warrant 2,100    
Escrow deposit $ 400