Summary Of Significant Accounting Policies [Line Items]

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- Definition

Percentage of voting equity interests acquired at the acquisition date in the business combination.

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 805
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- Definition

Fair value portion of debt instrument payable, including, but not limited to, notes payable and loans payable.

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Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 825
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- Definition

Contractual interest rate for funds borrowed, under the debt agreement.

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
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- Definition

Carrying value as of the balance sheet date of notes payable (with maturities initially due after one year or beyond the operating cycle if longer), excluding current portion.

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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.

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- Definition

Amount of liabilities classified as other, due after one year or the normal operating cycle, if longer.

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- Definition

Useful life of long lived, physical assets used in the normal conduct of business and not intended for resale, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. Examples include, but not limited to, land, buildings, machinery and equipment, office equipment, furniture and fixtures, and computer equipment.

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Period which an employee's right to exercise an award is no longer contingent on satisfaction of either a service condition, market condition or a performance condition, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Details)	12 Months Ended
SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Details)	Dec. 31, 2019 USD ($) segment	Nov. 30, 2019	Dec. 31, 2018 USD ($)	Feb. 08, 2018
Summary Of Significant Accounting Policies [Line Items]
Number of operating units \| segment	2
Deferral included in other long-term liabilities	$ 3,360,000		$ 1,667,000
Vesting period	3 years
7.875% Senior Unsecured Notes Due 2024
Summary Of Significant Accounting Policies [Line Items]
Face value of senior notes issued	$ 500,000,000		$ 500,000,000
Alta Mesa \| 7.875% Senior Unsecured Notes Due 2024
Summary Of Significant Accounting Policies [Line Items]
Stated interest rate of senior notes	7.875%			7.875%
Face value of senior notes issued	$ 500,000,000.0
Fair value of senior notes payable	$ 533,600,000
Cimarron Express Pipeline, LLC
Summary Of Significant Accounting Policies [Line Items]
Percentage of ownership acquired		50.00%
Processing Plant And Pipelines
Summary Of Significant Accounting Policies [Line Items]
Depreciable life of property and equipment	35 years
Compressors
Summary Of Significant Accounting Policies [Line Items]
Depreciable life of property and equipment	25 years
Property, Plant and Equipment, Other Types \| Minimum
Summary Of Significant Accounting Policies [Line Items]
Depreciable life of property and equipment	3 years
Property, Plant and Equipment, Other Types \| Maximum
Summary Of Significant Accounting Policies [Line Items]
Depreciable life of property and equipment	7 years