Income Taxes - Effective Income Tax Rates (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Income Tax Disclosure [Abstract]
Income tax expense (benefit) based on the U.S. statutory tax rate	$ 9,007	$ (325,299)	$ 42,735
Alberta tax rate reduction and tax impact of deemed repatriation of foreign invested earnings (U.S. tax reform)	0	0	(17,019)
Foreign income (loss) subject to foreign tax rates different than the U.S. statutory rate	13,270	(3,791)	(1,122)
State income taxes, net of federal benefit	2,500	(6,646)	4,060
U.S. tax benefit on certain foreign upstream investments	(8,916)	0	(14,975)
Increase in deferred tax asset valuation allowance related to other foreign exploration expenditures	4,814	7,707	10,927
Tax effect on income attributable to noncontrolling interest	(25,450)	23,712	(21,750)
Other, net	(1,087)	10,576	11,827
Total income tax expense (benefit)	$ (5,862)	$ (293,741)	$ 14,683