Assets Held for Sale and Discontinued Operations (Major Categories of Assets and Liabilities Reflected as Held for Sale) (Details) - Discontinued operations, held-for-sale or disposed of by sale - Brunei Exploration And Production Operations - USD ($) $ in Thousands	Sep. 30, 2022	Dec. 31, 2021
Current assets
Property, plant, and equipment, net	$ 7,538	$ 15,453
Total current assets associated with assets held for sale	$ 7,538	$ 15,453