Oil and Gas Properties - Summary of Oil and Gas Properties (Details) - USD ($) $ in Thousands	Mar. 31, 2017	Dec. 31, 2016
Oil And Gas Exploration And Production Industries Disclosures [Abstract]
Proved properties and equipment	$ 552,268	$ 538,695
Unproved properties	74,055	72,584
Less accumulated depreciation, depletion, amortization, and impairment	(184,012)	(172,051)
Oil and gas property, net	$ 442,311	$ 439,228

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Amount of accumulated depreciation, depletion, amortization and impairment of oil and gas property carried under the successful effort method.

+ References

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 932
-SubTopic 235
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Oil and gas properties net of accumulated depreciation, depletion, amortization, impairment, and abandonment, carried under the successful effort method.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
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Oil and Gas properties with proved reserves under the successful effort method.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 932
-SubTopic 360
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Oil and Gas properties with unproved reserves under the successful effort method.

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