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Commitments and Contingencies - Additional Information (Detail) $ in Thousands | 6 Months Ended
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Jun. 30, 2016 USD ($) MMBTU / d bbl / d
Commitments And Contingencies Disclosure [Line Items] |
Transportation commitments future minimum transportation fees due to six months change | $ | $ 1,502,349
Period of transportation commitments future minimum transportation fees due to six months change | 16 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 | 40,500
Ethane |
Commitments And Contingencies Disclosure [Line Items] |
Oil and Gas Delivery Commitments and Contracts, Daily Production | bbl / d | 20,000
Oil and gas delivery commitments, term | 15 years

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- Definition Change in the minimum commitment related to transportation agreements that must be made within the specified time period of the agreement. + References No definition available. + Details
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