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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Name:	us-gaap_GoodwillImpairmentLoss
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

Goodwill and Intangibles (Details) - USD ($) $ in Thousands	3 Months Ended			9 Months Ended
Goodwill and Intangibles (Details) - USD ($) $ in Thousands	Mar. 31, 2020	Dec. 31, 2019	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019
Goodwill
Goodwill		$ 575,461
Impairment of goodwill			$ 43,759	$ 575,461	$ 43,759
Gathering And Processing
Goodwill
Impairment of goodwill	$ 575,000
Water Handling
Goodwill
Goodwill		0
Impairment of goodwill		$ 298,000