Annual report pursuant to Section 13 and 15(d)

Fair Value Measurement (Details)

v3.6.0.2
Fair Value Measurement (Details)
$ in Thousands
12 Months Ended
Sep. 23, 2015
USD ($)
bbl
Dec. 31, 2016
USD ($)
Dec. 31, 2015
USD ($)
Reconciliation of changes in Level 3 financial liabilities measured at fair value on a recurring basis      
Beginning balance   $ 178,049  
Initial estimate upon acquisition     $ 174,716
Accretion   16,489 3,333
Ending balance   $ 194,538 $ 178,049
Contribution Agreement | Contingent Consideration Period One      
Fair value measurement      
Contingent consideration $ 125,000    
Threshold number of barrels of water to trigger contingent consideration payment | bbl 176,295,000    
Contribution Agreement | Contingent Consideration Period Two      
Fair value measurement      
Contingent consideration $ 125,000    
Threshold number of barrels of water to trigger contingent consideration payment | bbl 219,200,000