Annual report pursuant to Section 13 and 15(d)

Acquisitions and Divestitures - Additional Information (Detail)

v3.20.4
Acquisitions and Divestitures - Additional Information (Detail)
$ / shares in Units, $ in Thousands
 1 Months Ended 12 Months Ended
Jul. 31, 2018
USD ($)
Jul. 31, 2018
USD ($)
Mar. 31, 2018
USD ($)
Dec. 31, 2018
USD ($)
$ / shares
Dec. 31, 2017
USD ($)
a
Dec. 31, 2020
USD ($)
Dec. 31, 2019
USD ($)
Mar. 01, 2018
USD ($)
Significant Acquisitions and Disposals                
Capitalized Costs, Proved Properties       $ 3,700   $ 2,100 $ 4,100  
Second Lien Facility           200,000 200,000  
Property, Plant and Equipment, Gross           1,623,591 1,488,334  
Asset Retirement Obligation       4,314   5,461 4,934  
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 $ 300            
Working Capital Adjustments, Net 1,300 1,300            
Pre-Tax Operating Income Attributable to Assets Sold       (1,600)        
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      
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       400 $ 100 $ 500   96,978
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          
Business Acquisition, Pro Forma Revenue       446,077        
Business Acquisition, Pro Forma Income (Loss) from Continuing Operations, Net of Tax       $ 227,930        
Business Acquisition, Pro Forma Earnings Per Share, Basic | $ / shares       $ 15.14        
Business Acquisition, Pro Forma Earnings Per Share, Diluted | $ / shares       $ 14.91        
Business Combination, Pro Forma Information, Earnings or Loss of Acquiree since Acquisition Date, Actual     $ 200