Divestiture [Line Items]

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- Definition

Number of drilling rigs in assets held for sale

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- Definition

Number of rigs sold

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- Definition

Pipeline acquired

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- Definition

Amount of assets held-for-sale that are not part of a disposal group.

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- Definition

Date when the acquirer obtains control of the acquiree, in CCYY-MM-DD format.

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- Definition

Amount recognized as of the acquisition date for the identifiable assets acquired in excess of (less than) the aggregate liabilities assumed.

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- Definition

Amount classified as property, plant and equipment attributable to disposal group held for sale or disposed of, expected to be disposed of after one year or the normal operating cycle, if longer.

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- Definition

Amount of gain (loss) on sale or disposal of property, plant and equipment assets, including oil and gas property and timber property.

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- Definition

The cash inflow associated with the amount received from the sale of a portion of the company's business, for example a segment, division, branch or other business, during the period.

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Acquisitions and Divestitures - Narrative (Details) $ in Thousands	4 Months Ended	8 Months Ended	12 Months Ended
	Dec. 31, 2020 USD ($)	Aug. 31, 2020 USD ($)	Dec. 31, 2020 USD ($) rig	Dec. 31, 2019 USD ($) rig milesOfPipeline
Acquisitions and Divestitures [Line Items]
Net book value of drilling rigs sold				$ 5,700
Gain (loss) on sale of drilling rigs				1,100
Assets held for sale	$ 0		$ 0	5,908
Oil and Natural Gas
Acquisitions and Divestitures [Line Items]
Other acquisitions		$ 400		3,700
Proceeds from divestiture of assets	$ 400	$ 1,200		$ 21,800
Drilling Equipment
Acquisitions and Divestitures [Line Items]
Number of rigs sold \| rig				6
Number of drilling rigs in assets held for sale \| rig			7
Mid-Stream
Acquisitions and Divestitures [Line Items]
Other acquisitions				$ 16,100
Pipeline acquired \| milesOfPipeline				572
Business Acquisition, Effective Date of Acquisition				Dec. 01, 2019