Number of major customer.

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Number of major operator.

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Summary of significant accounting policies.

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Tax Cuts And Jobs Act Of 2017, Incomplete Accounting, Provisional Income Tax Expense (Benefit)

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No definition available.

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- Definition

For an unclassified balance sheet, a valuation allowance for receivables due a company that are expected to be uncollectible.

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- Definition

For an entity that discloses a concentration risk in relation to quantitative amount, which serves as the "benchmark" (or denominator) in the equation, this concept represents the concentration percentage derived from the division.

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The number of derivative instruments of a particular derivative asset or group of derivative assets held by the entity.

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Fair value of the assets less the liabilities of a derivative or group of derivatives.

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- Definition

The percentage of ownership of common stock or equity participation in the investee accounted for under the equity method of accounting.

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Amount of loss from the write-down of an asset representing the future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized.

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The parent entity's interest in net assets of the subsidiary, expressed as a percentage.

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Number of segments reported by the entity. A reportable segment is a component of an entity for which there is an accounting requirement to report separate financial information on that component in the entity's financial statements.

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Summary of Significant Accounting Policies (Details)	3 Months Ended	12 Months Ended
Summary of Significant Accounting Policies (Details)	Dec. 31, 2017 USD ($) contract	Dec. 31, 2018 USD ($) Customer segment	Dec. 31, 2017 USD ($) contract Customer
Summary Of Significant Accounting Policies [Line Items]
Allowance for uncollectible accounts receivable	$ 100,000	$ 100,000	$ 100,000
Impairment of goodwill		$ 0	$ 0
Number of reportable segment \| segment		1
Net derivative asset position		$ 62,600,000
Derivative asset, number of derivative contracts \| contract	0		0
Provisional income tax expense related to TCJA	$ 7,800,000	$ 7,800,000
Customer Concentration Risk \| Sales Revenue, Net
Summary Of Significant Accounting Policies [Line Items]
Number of major customer \| Customer		3	3
Number of major operators \| Customer			1
Customer Concentration Risk \| Sales Revenue, Net \| Customer One
Summary Of Significant Accounting Policies [Line Items]
Percentage of concentration risk		27.00%	18.00%
Customer Concentration Risk \| Sales Revenue, Net \| Customer Two
Summary Of Significant Accounting Policies [Line Items]
Percentage of concentration risk		11.00%	14.00%
Customer Concentration Risk \| Sales Revenue, Net \| Customer Three
Summary Of Significant Accounting Policies [Line Items]
Percentage of concentration risk		10.00%	14.00%
Customer Concentration Risk \| Sales Revenue, Net \| Operator One
Summary Of Significant Accounting Policies [Line Items]
Percentage of concentration risk			10.00%
Customer Concentration Risk \| Accounts Receivable
Summary Of Significant Accounting Policies [Line Items]
Number of major customer \| Customer		5	3
Customer Concentration Risk \| Accounts Receivable \| Customer One
Summary Of Significant Accounting Policies [Line Items]
Percentage of concentration risk		22.00%	20.00%
Customer Concentration Risk \| Accounts Receivable \| Customer Two
Summary Of Significant Accounting Policies [Line Items]
Percentage of concentration risk		17.00%	13.00%
Customer Concentration Risk \| Accounts Receivable \| Customer Three
Summary Of Significant Accounting Policies [Line Items]
Percentage of concentration risk		13.00%	12.00%
Customer Concentration Risk \| Accounts Receivable \| Customer Four
Summary Of Significant Accounting Policies [Line Items]
Percentage of concentration risk		11.00%
Customer Concentration Risk \| Accounts Receivable \| Customer Five
Summary Of Significant Accounting Policies [Line Items]
Percentage of concentration risk		11.00%
Bold Contribution Agreement \| Earthstone Energy Holdings Limited Liability Company And Lynden US \| Earthstone Energy Holdings, LLC
Summary Of Significant Accounting Policies [Line Items]
Percentage of ownership interest held by Earthstone Energy, Inc. and Lynden US Inc.		44.70%
Bold Contribution Agreement \| Bold Energy Holdings, LLC \| Earthstone Energy Holdings, LLC
Summary Of Significant Accounting Policies [Line Items]
Percentage of ownership interest		55.30%