Quarterly report pursuant to Section 13 or 15(d)

Acquisitions??and Divestitures (Narrative - Acquisitions) (Details)

v3.20.2
Acquisitions and Divestitures (Narrative - Acquisitions) (Details)
$ / shares in Units, $ in Thousands, shares in Millions
3 Months Ended 6 Months Ended 12 Months Ended
Dec. 20, 2019
USD ($)
$ / shares
shares
Jun. 30, 2020
USD ($)
Jun. 30, 2019
USD ($)
Jun. 30, 2020
USD ($)
Jun. 30, 2020
USD ($)
Jun. 30, 2019
USD ($)
Dec. 31, 2019
USD ($)
Business Acquisition [Line Items]              
Revenues   $ 157,234 $ 167,052 $ 447,153   $ 320,099  
Total operating expenses   1,518,910 $ 108,543 1,760,969   $ 218,365  
Carrizo Oil & Gas, Inc.              
Business Acquisition [Line Items]              
Acquisition related costs             $ 15,600
8.875% Preferred Stock | Carrizo Oil & Gas, Inc.              
Business Acquisition [Line Items]              
Preferred stock cumulative cash dividends rate 8.875%            
Carrizo Oil & Gas, Inc.              
Business Acquisition [Line Items]              
Share conversion ratio 1.75            
Equity interest issued, number of shares (in shares) | shares 168.2            
Equity interest issued, price per share (in dollars per share) | $ / shares $ 4.55            
Total consideration $ 765,373            
Revenues   86,900   248,300      
Total operating expenses   47,700   99,900      
Acquisition related costs             $ 58,800
Restructuring charges   8,100   23,900 $ 98,300    
Carrizo Oil & Gas, Inc. | Accounts Payable and Accrued Liabilities              
Business Acquisition [Line Items]              
Restructuring reserve   23,000   23,000 23,000    
Carrizo Oil & Gas, Inc. | Employee Severance              
Business Acquisition [Line Items]              
Restructuring charges   2,400   5,400 34,200    
Carrizo Oil & Gas, Inc. | Acquisition & Integration              
Business Acquisition [Line Items]              
Restructuring charges   $ 5,700   $ 18,500 $ 64,100