Derivative and Hedging Financial Instruments - Additional Information (Detail) (USD $)	1 Months Ended		9 Months Ended					1 Months Ended				9 Months Ended											0 Months Ended	9 Months Ended
	Jul. 31, 2014 MMBTU	Jun. 30, 2013 MMBTU	Sep. 30, 2014 MMBTU	Aug. 20, 2014	Dec. 31, 2013	May 21, 2013	May 09, 2013	Nov. 30, 2018 Scenario, Forecast [Member] MMBTU	Apr. 30, 2015 Scenario, Forecast [Member] MMBTU	Nov. 30, 2014 Scenario, Forecast [Member] Maximum [Member] MMBTU	Jan. 31, 2015 Scenario, Forecast [Member] Minimum [Member] MMBTU	Sep. 30, 2014 Morgan Stanley Fixed I [Member] July 2014 to November 2018 [Member] MMBTU	Sep. 30, 2014 Morgan Stanley Fixed II [Member] January 2015 To November 2014 [Member] MMBTU	Sep. 30, 2014 Price Risk Derivative [Member] July 2014 to November 2018 [Member]	Sep. 30, 2014 Price Risk Derivative [Member] January 2015 To November 2014 [Member]	Sep. 30, 2014 Energy Related Derivative [Member]	Dec. 31, 2013 Energy Related Derivative [Member]	Aug. 20, 2014 Put Option [Member]	May 09, 2013 Put Option [Member]	May 21, 2014 Put Option [Member] Maximum [Member]	May 21, 2014 Put Option [Member] Minimum [Member]	May 09, 2013 Call Option [Member]	Dec. 20, 2013 ASD Credit Agreement [Member]	Sep. 30, 2014 ASD Credit Agreement [Member]
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Costless collars covering percentage on its expected natural gas production							85.00%
Strike Price of Costless Collar																		3.92	4.00	4.38	4.06	4.28
Total MMBtu hedged over the period			1.6									13,932,171	10,499,038
Monthly volumes declining of MMBtu	444,534	207,000						171,940	113,000	326,700	33,200
Derivative liabilities fair value			$ (1,048,557)		$ (125,773)									$ 577,585	$ (878,168)	$ 32,174	$ (125,773)
Fixed price covering percentage on its expected natural gas production				90.00%		90.00%
Warrants and rights outstanding																								2,000,000
Warrants Rights																								19,500
ASD Stock Percentage																								19.50%
Warrants exercise price																								$ 263.44
Warrant expiry date			Feb. 28, 2015
Repurchase of warrants																							$ 9,000,000