Revenue from Contracts with Customers - Schedule of Disaggregation of Revenue (Details) - USD ($) $ in Thousands	3 Months Ended								12 Months Ended
	Dec. 31, 2024	Sep. 30, 2024	Jun. 30, 2024	Mar. 31, 2024	Dec. 31, 2023	Sep. 30, 2023	Jun. 30, 2023	Mar. 31, 2023	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Disaggregation of Revenue [Line Items]
Revenue from contracts with customers	$ 669,600	$ 753,200	$ 801,000	$ 794,800	$ 842,200	$ 953,800	$ 812,900	$ 840,000	$ 3,018,598	$ 3,448,854	$ 4,220,140
(Loss) on derivative instruments									(1,707)	0	(320,410)
Gain on sale of assets and other operating income									11,583	11,293	32,932
Total revenues and other income									3,028,474	3,460,147	3,932,662
Revenue from production
Disaggregation of Revenue [Line Items]
Revenue from contracts with customers									3,014,856	3,376,639	4,038,451
Net crude oil and condensate revenue
Disaggregation of Revenue [Line Items]
Revenue from contracts with customers									2,635,660	2,916,252	3,357,848
Net natural gas liquids revenue
Disaggregation of Revenue [Line Items]
Revenue from contracts with customers									79,165	89,526	142,777
Net natural gas revenue
Disaggregation of Revenue [Line Items]
Revenue from contracts with customers									300,031	370,861	537,826
Sales of purchased natural gas
Disaggregation of Revenue [Line Items]
Revenue from contracts with customers									3,742	72,215	181,689
United States - Onshore | Net crude oil and condensate revenue
Disaggregation of Revenue [Line Items]
Revenue from contracts with customers									586,584	676,139	856,219
United States - Onshore | Net natural gas liquids revenue
Disaggregation of Revenue [Line Items]
Revenue from contracts with customers									32,853	33,178	64,015
United States - Onshore | Net natural gas revenue
Disaggregation of Revenue [Line Items]
Revenue from contracts with customers									17,443	21,346	64,037
United States Offshore | Net crude oil and condensate revenue
Disaggregation of Revenue [Line Items]
Revenue from contracts with customers									1,777,723	2,072,353	2,229,658
United States Offshore | Net natural gas liquids revenue
Disaggregation of Revenue [Line Items]
Revenue from contracts with customers									38,858	47,434	60,424
United States Offshore | Net natural gas revenue
Disaggregation of Revenue [Line Items]
Revenue from contracts with customers									50,329	71,332	161,160
United States Offshore | Sales of purchased natural gas
Disaggregation of Revenue [Line Items]
Revenue from contracts with customers									0	0	204
Canada - Onshore | Net crude oil and condensate revenue
Disaggregation of Revenue [Line Items]
Revenue from contracts with customers									70,855	78,088	131,400
Canada - Onshore | Net natural gas liquids revenue
Disaggregation of Revenue [Line Items]
Revenue from contracts with customers									7,454	8,914	18,338
Canada - Onshore | Net natural gas revenue
Disaggregation of Revenue [Line Items]
Revenue from contracts with customers									232,259	278,183	312,629
Canada - Onshore | Sales of purchased natural gas
Disaggregation of Revenue [Line Items]
Revenue from contracts with customers									3,742	72,215	181,485
Canada Offshore | Net crude oil and condensate revenue
Disaggregation of Revenue [Line Items]
Revenue from contracts with customers									193,961	78,650	117,747
Other | Net crude oil and condensate revenue
Disaggregation of Revenue [Line Items]
Revenue from contracts with customers									$ 6,537	$ 11,022	$ 22,824