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Fair value measurements - Fair values - Narrative (Details)
12 Months Ended
Dec. 31, 2023
USD ($)
$ / Mcf
$ / bbl
Dec. 31, 2022
USD ($)
Dec. 31, 2021
USD ($)
Dec. 31, 2020
USD ($)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]        
Impairment of oil and gas properties | $ $ 26,500,000 $ 0   $ 0
Level 3 | Fair Value, Nonrecurring        
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]        
Impairment of oil and gas properties | $ $ 26,500,000 $ 26,500,000 $ 26,500,000  
Level 3 | Fair Value, Nonrecurring | Measurement Input, Discount Rate        
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]        
Interest rate (percentage) 10.00%      
Oil commodity prices per barrel 2024 | Level 3 | Fair Value, Nonrecurring        
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]        
Derivative contract prices | $ / bbl 71.68      
Oil commodity prices per barrel 2028 | Level 3 | Fair Value, Nonrecurring        
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]        
Derivative contract prices | $ / bbl 62.02      
Natural gas commodity prices per Mcf 2024 | Level 3 | Fair Value, Nonrecurring        
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]        
Derivative contract prices | $ / Mcf 2.67      
Natural gas commodity prices per Mcf 2028 | Level 3 | Fair Value, Nonrecurring        
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]        
Derivative contract prices | $ / Mcf 3.80      
Vital Energy, Inc        
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]        
Number of common shares to be converted into, per share of preferred stock 1