Commitments and Contingencies - Additional Information (Detail) $ in Millions	3 Months Ended
	Mar. 31, 2016 USD ($)
Commitments And Contingencies Disclosure [Abstract]
Commitments for contracted drilling services	$ 1.0
Contract term related to drilling rigs	through May 2016
Natural gas transportation and treating agreements	through July 2019
Maximum commitments under natural gas transportation and treating agreements	$ 5.9