Commitments and Contingencies - Other Commitments (Detail) $ in Thousands	Dec. 31, 2016 USD ($)
Other Commitments [Line Items]
2017	$ 68,115
2018	134,235
2019	128,927
2020	117,314
2021	105,391
Thereafter	205,766
Total	759,748
Drilling Rig Commitments [Member]
Other Commitments [Line Items]
2017	8,937	[1]
Total	8,937	[1]
Firm Transportation [Member]
Other Commitments [Line Items]
2017	49,748	[2]
2018	118,316	[2]
2019	111,787	[2]
2020	109,593	[2]
2021	105,391	[2]
Thereafter	205,766	[2]
Total	700,601	[2]
Gas Processing, Gathering, and Compression Services [Member]
Other Commitments [Line Items]
2017	9,430	[3]
2018	15,919	[3]
2019	17,140	[3]
2020	7,721	[3]
Total	$ 50,210	[3]

[1] Drilling rig commitments -The Company had contracts for the service of two rigs, which one expires in August 2017 with the option to extend and one expires in September 2017. The values in the table represent the gross amounts that the Company is committed to pay and does not deduct amounts that other parties are responsible for as a result of cost sharing arrangements with working interest partners. The Company will record in its consolidated financial statements the Company’s proportionate share of costs based on its working interest, as applicable.

[2] Firm transportation -The Company has entered into firm transportation agreements with various pipelines in order to facilitate the delivery of production to market. These contracts commit the Company to transport minimum daily natural gas or NGL volumes at a negotiated rate, or pay for any deficiencies at a specified reservation fee rate. The amounts in this table represent the minimum daily volumes at the reservation fee rate. The values in the table represent the gross amounts that the Company is committed to pay and does not deduct amounts that other parties are responsible for as a result of cost sharing arrangements with working interest partners. The Company will record in its consolidated financial statements the Company’s proportionate share of costs based on its working interest.

[3] Gas processing, gathering, and compression services -Contractual commitments for gas processing, gathering and compression service agreements represent minimum commitments under long-term gas processing agreements as well as various gas compression agreements. The values in the table represent the gross amounts that the Company is committed to pay and does not deduct amounts that other parties are responsible for as a result of cost sharing arrangements with working interest partners. The Company will record in its consolidated financial statements its proportionate share of costs based on the Company’s working interest.”