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Oil and Natural Gas Properties - Additional Information (Details)
12 Months Ended
Dec. 31, 2015
USD ($)
Well
Dec. 31, 2014
USD ($)
Well
Dec. 31, 2013
USD ($)
Well
Oil And Gas Exploration And Production Industries Disclosures [Abstract]      
Capitalized costs excluded from depletion $ 618,794,000 $ 624,240,000  
Depletion expense on capitalized oil and gas property $ 173,600,000 $ 92,800,000 $ 27,100,000
Number of exploratory wells in progress | Well 0 0 0
Interest costs capitalized $ 0 $ 2,700,000 $ 3,400,000