v3.3.1.900

Summary of Significant Accounting Policies - Additional Information (Detail) | 12 Months Ended
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Dec. 31, 2015 USD ($) Wells Segment | Dec. 31, 2014 USD ($) Wells | Dec. 31, 2013 USD ($)
Summary Of Significant Accounting Policies [Line Items] |  |  |
Number of exploratory wells capitalized | Wells | 0 | 0 |
Capitalized interest cost | $ 0 |  |
Depreciation depletion and amortization for oil & gas | 108,800,000 | $ 106,200,000 | $ 76,500,000
Impairment of oil and gas properties and equipment | 220,197,000 | 0 | 0
Depreciation expense for other property and equipment | 563,000 | 588,000 | 502,000
Equity method investments | $ 0 |  |
Tax benefit | 50.00% |  |
Uncertain tax positions | $ 0 | 0 |
Number of days in which payment is to be made | 30 days |  |
Realized gains on commodity derivatives | $ 4,800,000 | 4,800,000 |
Exploration expenses | $ 4,439,000 | 3,831,000 | $ 2,238,000
Number of operating segment | Segment | 1 |  |
Deferred tax assets current | $ 0 | 14,200,000 |
Deferred tax liabilities current | $ 0 | $ 14,242,000 |
Customer Concentration Risk [Member] | Wildcat Permian Services, LLC [Member] |  |  |
Summary Of Significant Accounting Policies [Line Items] |  |  |
Sales to customers |  |  | 30.00%
Customer Concentration Risk [Member] | DCP Midstream, LLC [Member] |  |  |
Summary Of Significant Accounting Policies [Line Items] |  |  |
Sales to customers | 36.00% | 30.00% | 27.00%
Customer Concentration Risk [Member] | JP Energy Permian, LLC [Member] |  |  |
Summary Of Significant Accounting Policies [Line Items] |  |  |
Sales to customers | 63.00% | 69.00% | 23.00%
Minimum [Member] |  |  |
Summary Of Significant Accounting Policies [Line Items] |  |  |
Estimated useful lives of furniture, fixtures and equipment | 3 years |  |
Maximum [Member] |  |  |
Summary Of Significant Accounting Policies [Line Items] |  |  |
Estimated useful lives of furniture, fixtures and equipment | 15 years |  |
Oil and Gas [Member] | Minimum [Member] |  |  |
Summary Of Significant Accounting Policies [Line Items] |  |  |
Number of days in which payment is to be made | 30 days |  |
Oil and Gas [Member] | Maximum [Member] |  |  |
Summary Of Significant Accounting Policies [Line Items] |  |  |
Number of days in which payment is to be made | 60 days |  |
Drilling Contracts [Member] |  |  |
Summary Of Significant Accounting Policies [Line Items] |  |  |
Exploration expenses | $ 2,200,000 |  |
Proved Property Impairment [Member] |  |  |
Summary Of Significant Accounting Policies [Line Items] |  |  |
Impairment of oil and gas properties and equipment | 214,700,000 |  |
Unproved Property Impairment [Member] |  |  |
Summary Of Significant Accounting Policies [Line Items] |  |  |
Impairment of oil and gas properties and equipment | $ 5,500,000 |  |

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- Definition Exploration expenses (including prospecting) related to oil and gas producing entities and would be included in operating expenses of that entity. Costs incurred in identifying areas that may warrant examination and in examining specific areas that are considered to have prospects of containing oil and gas reserves, including costs of drilling exploratory wells and exploratory-type stratigraphic test wells. Exploration costs may be incurred both before acquiring the related property (sometimes referred to in part as prospecting costs) and after acquiring the property. Principal types of exploration costs, which include depreciation and applicable operating costs of support equipment and facilities and other costs of exploration activities, are: (i) Costs of topographical, geographical and geophysical studies, rights of access to properties to conduct those studies, and salaries and other expenses of geologists, geophysical crews, and others conducting those studies. Collectively, these are sometimes referred to as geological and geophysical or "G&G" costs. (ii) Costs of carrying and retaining undeveloped properties, such as delay rentals, ad valorem taxes on properties, legal costs for title defense, and the maintenance of land and lease records. (iii) Dry hole contributions and bottom hole contributions. (iv) Costs of drilling and equipping exploratory wells. (v) Costs of drilling exploratory-type stratigraphic test wells. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 932 -SubTopic 360 -Section 25 -Paragraph 9 -URI http://asc.fasb.org/extlink&oid=56951519&loc=d3e64954-109465 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 932 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.4-10.(a)(15)) -URI http://asc.fasb.org/extlink&oid=50486907&loc=d3e511914-122862 + Details
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- Definition Number of operating segments. An operating segment is a component of an enterprise: (a) that engages in business activities from which it may earn revenues and incur expenses (including revenues and expenses relating to transactions with other components of the same enterprise), (b) whose operating results are regularly reviewed by the enterprise's chief operating decision maker to make decisions about resources to be allocated to the segment and assess its performance, and (c) for which discrete financial information is available. An operating segment may engage in business activities for which it has yet to earn revenues, for example, start-up operations may be operating segments before earning revenues. + References No definition available. + Details
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