Annual report pursuant to Section 13 and 15(d)

Acquisitions and Divestitures - Additional Information (Detail)

v3.19.3.a.u2
Acquisitions and Divestitures - Additional Information (Detail)
$ / shares in Units, $ in Thousands
1 Months Ended 3 Months Ended 9 Months Ended 12 Months Ended
Jul. 31, 2018
USD ($)
Mar. 01, 2018
USD ($)
Jul. 31, 2018
USD ($)
Mar. 31, 2018
USD ($)
Sep. 30, 2018
USD ($)
Dec. 31, 2017
USD ($)
a
Sep. 30, 2017
USD ($)
Sep. 30, 2018
USD ($)
Dec. 31, 2019
USD ($)
Dec. 31, 2018
USD ($)
$ / shares
Dec. 31, 2017
USD ($)
a
$ / shares
Sep. 29, 2017
a
Significant Acquisitions and Disposals                        
Capitalized Costs, Proved Properties           $ 2,400     $ 4,100 $ 3,700 $ 2,400  
Second Lien Facility                 200,000 200,000    
Property, Plant and Equipment, Gross                 1,488,334 1,121,860    
Asset Retirement Obligation           $ 3,286     4,934 4,314 $ 3,286  
Cash Received for Suspended Revenues Attributable to Acquired Properties   $ 355                    
Mid-Continent Divestiture [Member]                        
Significant Acquisitions and Disposals                        
Proceeds from Sale of Oil and Gas Property and Equipment $ 6,200               6,000      
Cash Paid to Buyer in Connection with Final Settlement                 500      
Cash Paid for Suspended Revenues in Connection with FInal Settlement                 200      
Asset Retirement Obligation                 300      
Working Capital Adjustments, Net 1,300   $ 1,300                  
Pre-Tax Operating Income Attributable to Assets Sold         $ (1,600)   $ (2,200)          
Undeveloped Acreage [Member]                        
Significant Acquisitions and Disposals                        
Proceeds from Sale of Oil and Gas Property and Equipment                 1,700      
Working Interests Acquisition [Member] [Domain]                        
Significant Acquisitions and Disposals                        
Cash Paid on Date of Acquisition                 6,500      
Hunt Acquisition [Member]                        
Significant Acquisitions and Disposals                        
Capitalized Costs, Proved Properties   82,443                    
Area of Land | a           9,700         9,700  
Other Payments to Acquire Businesses                 86,000      
Cash Paid on Date of Acquisition   83,000                    
Accumulated Costs, net of suspended revenues, for wells in which Hunt elected not to participate   13,778                    
Business Acquisition, Transaction Costs   96,978   $ 400   $ 100     500   $ 100  
Capitalized Costs, Proved Properties   16,339                    
Asset Retirement Obligation   356                    
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Net   96,978                    
Working Capital Adjustments, Net $ (245)   (245)                  
Cash Received for Suspended Revenues Attributable to Acquired Properties     $ 1,448                  
Net Cash Paid on Date of Acquisition   82,955                    
Devon Acquisition [Member]                        
Significant Acquisitions and Disposals                        
Business Acquisition, Revenue Reported by Acquired Entity since Acquisition Date       400   9,000            
Business Acquisition, Pro Forma Revenue                   446,077 209,015  
Capitalized Costs, Proved Properties   42,866                    
Acreage, Net | a                       19,600
Other Payments to Acquire Businesses                 205,000 199,800 200,900  
Cash Paid on Date of Acquisition   199,796                    
Business Acquisition, Transaction Costs                 $ 1,300      
Capitalized Costs, Proved Properties   146,686                    
Property, Plant and Equipment, Gross   8,642                    
Asset Retirement Obligation   494                    
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Net   197,345                    
Working Capital Adjustments, Net   (2,451)                    
Preliminary Purchase Price   $ 197,345                    
Business Acquisition, Pro Forma Income (Loss) from Continuing Operations, Net of Tax                   $ 227,930 $ 30,861  
Business Acquisition, Pro Forma Earnings Per Share, Basic | $ / shares                   $ 15.14 $ 2.06  
Business Acquisition, Pro Forma Earnings Per Share, Diluted | $ / shares                   $ 14.91 $ 2.05  
Cash Received for Suspended Revenues Attributable to Acquired Properties               $ 1,100        
Business Combination, Pro Forma Information, Earnings or Loss of Acquiree since Acquisition Date, Actual       $ 200   $ 4,000