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Commitments and Contingencies - Additional Information (Detail) $ in Millions | 3 Months Ended
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Mar. 31, 2016 USD ($) MMBTU / d
Commitments And Contingencies Disclosure [Line Items] |
Transportation commitments future minimum transportation fees due three months change | $ | $ 12.7
Period of transportation commitments future minimum transportation fees due three months change | 9 years
Natural Gas | Minimum |
Commitments And Contingencies Disclosure [Line Items] |
Transportation and gathering commitments contingent upon pipeline construction or modification, term of contract | 1 year
Oil and Gas Delivery Commitments and Contracts, Daily Production | 1,500
Natural Gas | Maximum |
Commitments And Contingencies Disclosure [Line Items] |
Transportation and gathering commitments contingent upon pipeline construction or modification, term of contract | 5 years
Oil and Gas Delivery Commitments and Contracts, Daily Production | 15,000

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