Summary of Significant Accounting Policies - Additional Information - (Details)	12 Months Ended
	Dec. 31, 2015 USD ($) Customer Operator Counterparty	Dec. 31, 2014 USD ($) Customer Operator	Dec. 31, 2013 USD ($) Customer Operator
Summary Of Significant Accounting Policies [Line Items]
Number of major customer | Customer	1	1	1
Number of other customer accounted for 10% or more of revenues | Customer	0	0	0
Number of major operators | Operator	1		2
Number of other operators accounted for 10% or more of revenue | Operator	0	0	0
Derivative, number of counterparties | Counterparty	2
Liability for uncertain tax positions | $	$ 0	$ 0	$ 0
Customer Concentration Risk [Member] | Sales Revenue Net [Member] | Customer One [Member]
Summary Of Significant Accounting Policies [Line Items]
Percentage of revenues	62.00%	60.00%	21.00%
Customer Concentration Risk [Member] | Sales Revenue Net [Member] | Operator One [Member]
Summary Of Significant Accounting Policies [Line Items]
Percentage of revenues	12.00%	20.00%	47.00%
Customer Concentration Risk [Member] | Sales Revenue Net [Member] | Operator Two [Member]
Summary Of Significant Accounting Policies [Line Items]
Percentage of revenues			11.00%
Proved Oil and Gas Properties [Member]
Summary Of Significant Accounting Policies [Line Items]
Depletion expenses | $	$ 30,700,000	$ 18,100,000	$ 16,900,000
Unproved Oil and Gas Properties [Member] | Minimum [Member]
Summary Of Significant Accounting Policies [Line Items]
Unproved oil and gas lease term	3 years
Unproved Oil and Gas Properties [Member] | Maximum [Member]
Summary Of Significant Accounting Policies [Line Items]
Unproved oil and gas lease term	5 years