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Derivative Instruments and Hedging Activities - Outstanding Commodity Derivatives (Details)
bbl in Millions, Mcf in Millions
12 Months Ended
Dec. 31, 2016
$ / bbl
$ / Mcf
Mcf
bbl
Natural Gas Swap With Contract Period of January 2017 to December 2017  
Derivative [Line Items]  
Volume (in mmcf for gas and mbbls for oil) | Mcf 35.5
Swaps Weighted Average (in usd per Mcf or usd per bbl) 3.12
Natural Gas Swap With Contract Period of February 2017 to December 2017  
Derivative [Line Items]  
Volume (in mmcf for gas and mbbls for oil) | Mcf 16.2
Swaps Weighted Average (in usd per Mcf or usd per bbl) 3.46
Natural Gas Collar With Contract Period of January 2017 to December 2017  
Derivative [Line Items]  
Volume (in mmcf for gas and mbbls for oil) | Mcf 35.5
Natural Gas Collar With Contract Period of January 2017 to December 2017 | Minimum  
Derivative [Line Items]  
Collar Ceiling Price (in usd per Mcf or usd per bbl) 3.42
Natural Gas Collar With Contract Period of January 2017 to December 2017 | Maximum  
Derivative [Line Items]  
Collar Ceiling Price (in usd per Mcf or usd per bbl) 3.45
Natural Gas Collar With Contract Period of January 2017 to December 2017 | Weighted Average  
Derivative [Line Items]  
Collar Floor Price (in usd per Mcf or usd per bbl) 3.09
Collar Ceiling Price (in usd per Mcf or usd per bbl) 3.43
Natural Gas Basis Swap With Contract Period of January 2018 to December 2019  
Derivative [Line Items]  
Volume (in mmcf for gas and mbbls for oil) | Mcf 21.3
Swaps Weighted Average (in usd per Mcf or usd per bbl) 0.42
Crude Oil Collar With Contract Period Of January 2017 to December 2017  
Derivative [Line Items]  
Volume (in mmcf for gas and mbbls for oil) | bbl 1.8
Crude Oil Collar With Contract Period Of January 2017 to December 2017 | Minimum  
Derivative [Line Items]  
Collar Ceiling Price (in usd per Mcf or usd per bbl) | $ / bbl 56.25
Crude Oil Collar With Contract Period Of January 2017 to December 2017 | Maximum  
Derivative [Line Items]  
Collar Ceiling Price (in usd per Mcf or usd per bbl) | $ / bbl 56.50
Crude Oil Collar With Contract Period Of January 2017 to December 2017 | Weighted Average  
Derivative [Line Items]  
Collar Floor Price (in usd per Mcf or usd per bbl) | $ / bbl 50.00
Collar Ceiling Price (in usd per Mcf or usd per bbl) | $ / bbl 56.39