Revenue from Contracts with Customers - Disaggregation of Revenue (Details) - USD ($) $ in Thousands	3 Months Ended								12 Months Ended
	Dec. 31, 2023	Sep. 30, 2023	Jun. 30, 2023	Mar. 31, 2023	Dec. 31, 2022	Sep. 30, 2022	Jun. 30, 2022	Mar. 31, 2022	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Disaggregation of Revenue [Line Items]
Revenue from contracts with customers	$ 842,200	$ 953,800	$ 812,900	$ 840,000	$ 986,100	$ 1,166,400	$ 1,196,200	$ 871,400	$ 3,448,854	$ 4,220,140	$ 2,801,215
(Loss) gain on crude contracts									0	(320,410)	(525,850)
Gain on sale of assets and other income									11,293	32,932	23,916
Total revenues and other income									3,460,147	3,932,662	2,299,281
Revenue from production
Disaggregation of Revenue [Line Items]
Revenue from contracts with customers									3,376,639	4,038,451	2,801,215
Net crude oil and condensate revenue
Disaggregation of Revenue [Line Items]
Revenue from contracts with customers									2,916,252	3,357,848	2,322,593
Net natural gas liquids revenue
Disaggregation of Revenue [Line Items]
Revenue from contracts with customers									89,526	142,777	110,975
Net natural gas revenue
Disaggregation of Revenue [Line Items]
Revenue from contracts with customers									370,861	537,826	367,647
Sales of purchased natural gas
Disaggregation of Revenue [Line Items]
Revenue from contracts with customers									72,215	181,689	0
United States | Net crude oil and condensate revenue
Disaggregation of Revenue [Line Items]
Revenue from contracts with customers									676,139	856,219	626,136
United States | Net natural gas liquids revenue
Disaggregation of Revenue [Line Items]
Revenue from contracts with customers									33,178	64,015	50,189
United States | Net natural gas revenue
Disaggregation of Revenue [Line Items]
Revenue from contracts with customers									21,346	64,037	39,803
United States Offshore | Net crude oil and condensate revenue
Disaggregation of Revenue [Line Items]
Revenue from contracts with customers									2,072,353	2,229,658	1,478,993
United States Offshore | Net natural gas liquids revenue
Disaggregation of Revenue [Line Items]
Revenue from contracts with customers									47,434	60,424	44,411
United States Offshore | Net natural gas revenue
Disaggregation of Revenue [Line Items]
Revenue from contracts with customers									71,332	161,160	81,944
United States Offshore | Sales of purchased natural gas
Disaggregation of Revenue [Line Items]
Revenue from contracts with customers									0	204	0
Canada     | Net crude oil and condensate revenue
Disaggregation of Revenue [Line Items]
Revenue from contracts with customers									78,088	131,400	119,799
Canada     | Net natural gas liquids revenue
Disaggregation of Revenue [Line Items]
Revenue from contracts with customers									8,914	18,338	16,375
Canada     | Net natural gas revenue
Disaggregation of Revenue [Line Items]
Revenue from contracts with customers									278,183	312,629	245,900
Canada     | Sales of purchased natural gas
Disaggregation of Revenue [Line Items]
Revenue from contracts with customers									72,215	181,485	0
Canada Offshore | Net crude oil and condensate revenue
Disaggregation of Revenue [Line Items]
Revenue from contracts with customers									78,650	117,747	92,741
Other | Net crude oil and condensate revenue
Disaggregation of Revenue [Line Items]
Revenue from contracts with customers									$ 11,022	$ 22,824	$ 4,924