|**Other Accrued Expenses and Other Liabilities (Tables)**                                        | 3 Months Ended                                                                                                                                                                                                                                                                                                                                                                                       
|------------------------------------------------------------------------------------------------ | -----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
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|**Accrued Liabilities and Other Liabilities [Abstract]**                                         |                                                                                                                                                                                                                                                                                                                                                                                                      
|Accounts Payable, Accrued Liabilities, and Other Liabilities Disclosure, Current [Text Block]    | The following table presents the components of other accrued expenses as of the dates indicated:March 31, 2023December 31, 2022(in thousands)Employee benefits$18,396$29,288Asset retirement obligations25,86425,986Environmental expenses23,52925,666Operating and finance leases28,1275,987Other16,37819,155Other accrued expenses$112,294$106,082                                                 
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|Employee benefits                                                                                |                                                                                                                                                                                                                                                                                                                                                                                                      
|Asset retirement obligations                                                                     |                                                                                                                                                                                                                                                                                                                                                                                                      
|Environmental expenses                                                                           |                                                                                                                                                                                                                                                                                                                                                                                                      
|Operating and finance leases                                                                     |                                                                                                                                                                                                                                                                                                                                                                                                      
|Other                                                                                            |                                                                                                                                                                                                                                                                                                                                                                                                      
|Other accrued expenses                                                                           |                                                                                                                                                                                                                                                                                                                                                                                                      
|Accounts Payable, Accrued Liabilities, and Other Liabilities Disclosure, Noncurrent [Text Block] | The following table presents the components of other liabilities as of the dates indicated:March 31, 2023December 31, 2022(in thousands)Deferred midstream gathering credits$141,976$145,937Production taxes371,863315,758Operating and finance leases63,49641,815Other28,28029,360Other liabilities$605,615$532,870                                                                                 
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|Deferred midstream gathering credits                                                             |                                                                                                                                                                                                                                                                                                                                                                                                      
|Production taxes                                                                                 |                                                                                                                                                                                                                                                                                                                                                                                                      
|Operating and finance leases                                                                     |                                                                                                                                                                                                                                                                                                                                                                                                      
|Other                                                                                            |                                                                                                                                                                                                                                                                                                                                                                                                      
|Other liabilities                                                                                |                                                                                                                                                                                                                                                                                                                                                                                                      
|Schedule of Other Assets and Other Liabilities                                                   | Other Liabilities.The following table presents the components of other liabilities as of the dates indicated:March 31, 2023December 31, 2022(in thousands)Deferred midstream gathering credits$141,976$145,937Production taxes371,863315,758Operating and finance leases63,49641,815Other28,28029,360Other liabilities$605,615$532,870                                                               
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|Deferred midstream gathering credits                                                             |                                                                                                                                                                                                                                                                                                                                                                                                      
|Production taxes                                                                                 |                                                                                                                                                                                                                                                                                                                                                                                                      
|Operating and finance leases                                                                     |                                                                                                                                                                                                                                                                                                                                                                                                      
|Other                                                                                            |                                                                                                                                                                                                                                                                                                                                                                                                      
|Other liabilities                                                                                |                                                                                                                                                                                                                                                                                                                                                                                                      
|Accounts Receivable, Allowance for Credit Loss                                                   | Accounts Receivable.The following table presents the components of accounts receivable, net of allowance for doubtful accounts, as of the dates indicated:March 31, 2023December 31, 2022(in thousands)Crude oil, natural gas and NGLs sales$398,324$491,327Joint interest billings56,08846,633Other25,71513,796Allowance for doubtful accounts(5,344)(5,445)Accounts receivable, net$474,783$546,311
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|                                                                                                 | March 31, 2023                                                                                                                                                                                                                                                                                                                                                                                       
|                                                                                                 | (in thousands)                                                                                                                                                                                                                                                                                                                                                                                       
|Crude oil, natural gas and NGLs sales                                                            | $                                                                                                                                                                                                                                                                                                                                                                                                    
|Joint interest billings                                                                          | 56,088                                                                                                                                                                                                                                                                                                                                                                                               
|Other                                                                                            | 25,715                                                                                                                                                                                                                                                                                                                                                                                               
|Allowance for doubtful accounts                                                                  | (5,344)                                                                                                                                                                                                                                                                                                                                                                                              
|Accounts receivable, net                                                                         | $                                                                                                                                                                                                                                                                                                                                                                                                    

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