Derivative Instruments and Hedging Activities - Additional Information (Details) - Subsequent Event [Member] - Not Designated as Hedging Instrument [Member] - Crude Oil [Member] - Commodity Option [Member] $ in Millions	Jan. 01, 2017 USD ($) Boe $ / Boe
Derivative [Line Items]
Underlying, derivative mass | Boe	175,000
Weighted average strike price	50.47
Derivative premium | $	$ 100
Derivative premium per unit	3.09