Goodwill (Tables)

12 Months Ended

Mar. 31, 2021

Goodwill and Intangible Assets Disclosure [Abstract]

Schedule of changes in goodwill by segment

The following table summarizes changes in goodwill by segment for the periods indicated (in thousands):

	Water Solutions		Crude Oil Logistics		Liquids Logistics		Total
	(in thousands)
Balances at March 31, 2019	$	410,139	$	579,846	$	120,471	$	1,110,456
Revisions to acquisition accounting	4,755		—		(2,103)		2,652
Acquisitions	129,764		—		715		130,479
Impairment	(250,000)		—		—		(250,000)
Balances at March 31, 2020	294,658		579,846		119,083		993,587
Revisions to acquisition accounting (Note 4)	(11,348)		—		—		(11,348)
Impairment	—		(237,800)		—		(237,800)
Balances at March 31, 2021	$	283,310	$	342,046	$	119,083	$	744,439