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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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Goodwill and Intangibles - Carrying Amount of Goodwill (Details) - USD ($) $ in Thousands	3 Months Ended		12 Months Ended
	Mar. 31, 2020	Dec. 31, 2019	Dec. 31, 2020	Dec. 31, 2019
Goodwill
Goodwill - beginning of period	$ 575,461		$ 575,461
Goodwill acquired				$ 915,811
Impairment of goodwill			(575,461)	(340,350)
Goodwill - end of period		$ 575,461		575,461
Gathering And Processing
Goodwill
Goodwill - beginning of period	575,461		575,461
Goodwill acquired				575,461
Impairment of goodwill	$ (575,000)		$ (575,461)
Goodwill - end of period		575,461		575,461
Water Handling
Goodwill
Goodwill acquired				340,350
Impairment of goodwill		$ (298,000)		$ (340,350)