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Debt Instrument Additional Interest Payable On Default

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Debt instrument minimum principal withdrawal limit.

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Debt instrument prepayment amount exempted from charges.

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Debt instrument prepayment charges percentage.

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Debt Instrument Prepayment Penalties Percentage

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Percentage points added to the reference rate to compute the variable rate on the debt instrument.

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Date the debt agreement requires the first payment to be made, in CCYY-MM-DD format.

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Face (par) amount of debt instrument at time of issuance.

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Amount of the fee that accompanies borrowing money under the debt instrument.

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The average effective interest rate during the reporting period.

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Description of the interest rate as being fixed or variable, and, if variable, identification of the index or rate on which the interest rate is based and the number of points or percentage added to that index or rate to set the rate, and other pertinent information, such as frequency of rate resets.

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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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Date when the debt instrument is scheduled to be fully repaid, in CCYY-MM-DD format.

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Description of the payment terms of the debt instrument (for example, whether periodic payments include principal and frequency of payments) and discussion about any contingencies associated with the payment.

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Percentage of principal amount of debt redeemed.

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Amount of unused borrowing capacity under the long-term financing arrangement that is available to the entity as of the balance sheet date.

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Amount of the cost of borrowed funds accounted for as interest expense for debt.

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Carrying amount of long-term debt, net of unamortized discount or premium, including current and noncurrent amounts. Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations.

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Notes Payable (Morgan Stanley Credit Agreement) - Additional Information (Detail) - USD ($)		12 Months Ended
	Jul. 31, 2015	Dec. 31, 2015	Dec. 31, 2014	Oct. 03, 2014	Aug. 20, 2014	May 31, 2014	May 21, 2014
Debt Instrument [Line Items]
Credit facility, maturity date	Dec. 31, 2016
Morgan Stanley [Member]
Debt Instrument [Line Items]
Initial withdrawal amount						$ 102,500,000
Remaining borrowing capacity		$ 47,500,000
Debt instrument, interest rate description		Interest at a per annum rate equal to 9% plus the greater of 1% or LIBOR, for a three month interest period.
Debt instrument, additional interest rate		1.00%
Debt instrument interest rate		9.00%
Additional interest rate upon the occurrence of default		2.00%
Interest expense related to credit agreement		$ 14,985,439	$ 5,884,793
Credit facility, maturity date		Dec. 31, 2018
Scheduled amortization beginning period		May 01, 2015
Minimum amortization requirement, description		The minimum amortization required each month will be the greater of (i) 0.75% of the then outstanding balance (after May 1, 2016) or (ii) the amortization amount that would be required for American Shale to achieve a predetermined Net Debt Ratio within six months.
Loans, prepayment amount exempt from charges		$ 25,000,000
Payment percentage on outstanding interest, make-wholes and fees		101.00%
Morgan Stanley [Member] \| First Anniversary [Member]
Debt Instrument [Line Items]
Loans, prepayment charge		4.00%
Morgan Stanley [Member] \| Second Anniversary To Third Anniversary [Member]
Debt Instrument [Line Items]
Loans, prepayment charge		3.00%
Minimum [Member] \| Morgan Stanley [Member]
Debt Instrument [Line Items]
Minimum percentage of capital expenditures		50.00%
American Shale [Member] \| Morgan Stanley [Member]
Debt Instrument [Line Items]
Initial withdrawal amount							$ 102,500,000
Credit agreement withdrawal				$ 5,000,000	$ 5,000,000
American Shale [Member] \| Morgan Stanley [Member] \| Committed [Member]
Debt Instrument [Line Items]
Remaining borrowing capacity							47,500,000
American Shale [Member] \| Morgan Stanley [Member] \| Uncommitted [Member]
Debt Instrument [Line Items]
Remaining borrowing capacity							50,000,000
American Shale [Member] \| Morgan Stanley [Member] \| Payment in Kind (PIK) Note [Member]
Debt Instrument [Line Items]
Credit Agreement fee							593,750
American Shale [Member] \| Maximum [Member] \| Morgan Stanley [Member]
Debt Instrument [Line Items]
Credit facility, face amount							$ 200,000,000