Dedicated Acres

No definition available.

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- Definition

Equity Method Investment, Ownership Percentage Promote

+ References

No definition available.

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- Definition

Increase in Duration of the Acreage Dedication

+ References

No definition available.

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- Definition

Length Of Pipeline

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No definition available.

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- Definition

Payment to Expand Acreage Dedication

+ References

No definition available.

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- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

No definition available.

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- Definition

This element represents acquisition-related costs incurred to effect a business combination which costs have been expensed during the period. Such costs include finder's fees; advisory, legal, accounting, valuation, and other professional or consulting fees; general administrative costs, including the costs of maintaining an internal acquisitions department; and may include costs of registering and issuing debt and equity securities.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 805
-SubTopic 10
-Section 25
-Paragraph 23
-URI http://asc.fasb.org/extlink&oid=84229725&loc=d3e1043-128460

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- Definition

This element represents the amount of earnings or loss of the acquiree since the acquisition date included in the consolidated income statement for the reporting period.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition

This element represents the amount of revenue of the acquiree since the acquisition date included in the consolidated income statement for the reporting period.

+ References

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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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Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
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-SubTopic 10
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- Definition

The cash outflow associated with the acquisition of business during the period. The cash portion only of the acquisition price.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 805
-SubTopic 30
-Section 50
-Paragraph 1
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- Definition

Energy measure of oil and natural gas production reserves.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher SEC
-Name Regulation S-K (SK)
-Number 229
-Section 1204
-Subsection Instruction 5

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Acquisition - Narrative (Details) a in Thousands, $ in Thousands		9 Months Ended	12 Months Ended
	Jan. 31, 2018 USD ($)	Sep. 30, 2018 USD ($)	Dec. 31, 2018 USD ($) a MMBTU mi
Black Diamond Gathering LLC
Business Acquisition [Line Items]
Interest acquired			54.40%
Ownership promote			4.40%
Black Diamond Gathering LLC
Business Acquisition [Line Items]
Payment to expand acreage dedication		$ 24,100
Increase in duration of the acreage dedication			5 years
Black Diamond Acquisition
Business Acquisition [Line Items]
Dedicated acres \| a			141
Acquisition related costs			$ 6,800
Greenfield Member \| Black Diamond Gathering LLC
Business Acquisition [Line Items]
Interest acquired			45.60%
Black Diamond Acquisition
Business Acquisition [Line Items]
Payments to acquire businesses	$ 638,500
Length (miles) \| mi			160
Delivery capacity (Mbbl/day) \| MMBTU			300
Revenue since acquisition			$ 181,200
Pre-tax net loss since acquisition			$ 11,500
Black Diamond Acquisition \| Black Diamond Gathering LLC
Business Acquisition [Line Items]
Payments to acquire businesses	638,266
Payment to expand acreage dedication	24,120
Black Diamond Acquisition \| Greenfield Member
Business Acquisition [Line Items]
Payments to acquire businesses	318,600
Black Diamond Acquisition \| Noble Member
Business Acquisition [Line Items]
Payments to acquire businesses	$ 319,900