Revenue from Contracts with Customers - Disaggregation of Revenue (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2023	Mar. 31, 2022
Disaggregation of Revenue [Line Items]
Total revenue from sales to customers	$ 839,968	$ 871,374
Loss on derivative instruments	0	(320,777)
Gain on sale of assets and other income	1,748	2,364
Total revenues and other income	841,716	552,961
Revenue from production
Disaggregation of Revenue [Line Items]
Total revenue from sales to customers	796,231	834,528
Net crude oil and condensate revenue
Disaggregation of Revenue [Line Items]
Total revenue from sales to customers	672,117	702,846
Net natural gas liquids revenue
Disaggregation of Revenue [Line Items]
Total revenue from sales to customers	26,362	35,531
Net natural gas revenue
Disaggregation of Revenue [Line Items]
Total revenue from sales to customers	97,752	96,151
Sales of purchased natural gas
Disaggregation of Revenue [Line Items]
Total revenue from sales to customers	43,737	36,846
United States Onshore | Net crude oil and condensate revenue
Disaggregation of Revenue [Line Items]
Total revenue from sales to customers	130,081	171,696
United States Onshore | Net natural gas liquids revenue
Disaggregation of Revenue [Line Items]
Total revenue from sales to customers	8,270	16,685
United States Onshore | Net natural gas revenue
Disaggregation of Revenue [Line Items]
Total revenue from sales to customers	5,450	11,369
United States Offshore | Net crude oil and condensate revenue
Disaggregation of Revenue [Line Items]
Total revenue from sales to customers	500,310	465,621
United States Offshore | Net natural gas liquids revenue
Disaggregation of Revenue [Line Items]
Total revenue from sales to customers	14,629	13,979
United States Offshore | Net natural gas revenue
Disaggregation of Revenue [Line Items]
Total revenue from sales to customers	22,132	26,201
Canada Onshore | Net crude oil and condensate revenue
Disaggregation of Revenue [Line Items]
Total revenue from sales to customers	21,952	36,697
Canada Onshore | Net natural gas liquids revenue
Disaggregation of Revenue [Line Items]
Total revenue from sales to customers	3,463	4,867
Canada Onshore | Net natural gas revenue
Disaggregation of Revenue [Line Items]
Total revenue from sales to customers	70,170	58,581
Canada Onshore | Sales of purchased natural gas
Disaggregation of Revenue [Line Items]
Total revenue from sales to customers	43,737	36,846
Canada Offshore | Net crude oil and condensate revenue
Disaggregation of Revenue [Line Items]
Total revenue from sales to customers	16,130	28,832
Other | Net crude oil and condensate revenue
Disaggregation of Revenue [Line Items]
Total revenue from sales to customers	$ 3,644	$ 0