Condensed Consolidated Statement of Cash Flows (Unaudited) (Parenthetical) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2021	Mar. 31, 2020
Cash paid (received) during the year for:
Interest paid (net of capitalized)	$ 2,438	$ 2,141
Income taxes	(1,116)	0
Reorganization items	377	0
Changes in accounts payable and accrued liabilities related to purchases of property, plant, and equipment	(1,920)	4,812
Non-cash (additions) reductions to oil and natural gas properties related to asset retirement obligations	(26)	3,404
Non-cash trade of property, plant, and equipment	$ 0	$ 548