Annual report pursuant to Section 13 and 15(d)

Derivative Instruments - Additional Information (Detail)

v3.6.0.2
Derivative Instruments - Additional Information (Detail)
$ in Thousands
4 Months Ended 8 Months Ended 9 Months Ended 12 Months Ended
Dec. 31, 2016
USD ($)
counterparty
$ / bbl
Sep. 12, 2016
USD ($)
Sep. 30, 2016
USD ($)
Dec. 31, 2016
USD ($)
counterparty
$ / bbl
Dec. 31, 2015
USD ($)
Dec. 31, 2014
USD ($)
Derivative Instruments and Hedging Activities Disclosure [Line Items]            
Derivative assets $ 27,369     $ 27,369 $ 0  
Derivatives Settled     $ 63,000      
Derivatives Settled to Pay Down Revolver $ 0 $ 51,979 $ 52,000   $ 0 $ 0
Crude Oil            
Derivative Instruments and Hedging Activities Disclosure [Line Items]            
Derivative, Swap Type, Average Fixed Price | $ / bbl 49.12     49.12    
Commodity contracts            
Derivative Instruments and Hedging Activities Disclosure [Line Items]            
Derivative assets $ 27,400     $ 27,400    
Number Of Derivative Counterparty | counterparty 3     3    
Commodity contracts | Natural Gas            
Derivative Instruments and Hedging Activities Disclosure [Line Items]            
Third-party quoted forward prices       NYMEX Henry Hub gas    
Commodity contracts | Crude Oil            
Derivative Instruments and Hedging Activities Disclosure [Line Items]            
Third-party quoted forward prices       West Texas Intermediate crude oil