Condensed Consolidated Statement of Cash Flows (Unaudited) (Parenthetical) - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020
Cash paid (received) during the year for:
Interest paid (net of capitalized)	$ 3,764	$ 4,795
Income taxes	(1,116)	0
Reorganization items	2,554	0
Changes in accounts payable and accrued liabilities related to purchases of property, plant, and equipment	(3,318)	5,974
Non-cash reductions to oil and natural gas properties related to asset retirement obligations	1,115	3,548
Non-cash trade of property and equipment	$ 0	$ 548