Property, Plant and Equipment (Details) - USD ($) $ in Thousands	12 Months Ended
	Mar. 31, 2022	Mar. 31, 2021	Mar. 31, 2020
Property, Plant and Equipment
Gross property, plant and equipment	$ 3,349,396	$ 3,483,132
Accumulated depreciation	(887,006)	(776,279)
Net property, plant and equipment	2,462,390	2,706,853
Depreciation expense	203,783	190,204	$ 132,791
Capitalized interest expense	916	2,778	650
(Gain) loss on sales and write-downs of certain assets	36,624	41,836	22,497
Gain on disposal or impairment of assets, net	(94,254)	(475,436)	(261,786)
Water solutions
Property, Plant and Equipment
(Gain) loss on sales and write-downs of certain assets	28,068	36,492	22,491
Asset impairment charges		30,600
Gain on disposal or impairment of assets, net		(12,800)
Water solutions | Write down of certain water assets
Property, Plant and Equipment
Asset impairment charges	22,300	6,700	9,000
Water solutions | Inactive saltwater disposal facilities
Property, Plant and Equipment
Asset impairment charges	5,800	11,900	13,500
Crude oil logistics
Property, Plant and Equipment
(Gain) loss on sales and write-downs of certain assets	(3,194)	1,766	36
Gain on disposal or impairment of assets, net	(5,500)
Crude oil logistics | Write down of certain crude assets
Property, Plant and Equipment
(Gain) loss on sales and write-downs of certain assets	2,200
Liquids logistics
Property, Plant and Equipment
(Gain) loss on sales and write-downs of certain assets	11,750	3,350	(30)
Gain on disposal or impairment of assets, net	11,800
Corporate and Other
Property, Plant and Equipment
(Gain) loss on sales and write-downs of certain assets	0	228	$ 0
Natural gas liquids terminal and storage assets
Property, Plant and Equipment
Gross property, plant and equipment	$ 173,199	319,554
Natural gas liquids terminal and storage assets | Minimum
Property, Plant and Equipment
Useful life	2 years
Natural gas liquids terminal and storage assets | Maximum
Property, Plant and Equipment
Useful life	30 years
Pipeline and related facilities
Property, Plant and Equipment
Gross property, plant and equipment	$ 265,643	264,405
Pipeline and related facilities | Minimum
Property, Plant and Equipment
Useful life	30 years
Pipeline and related facilities | Maximum
Property, Plant and Equipment
Useful life	40 years
Vehicles and railcars
Property, Plant and Equipment
Gross property, plant and equipment	$ 93,126	126,088
Vehicles and railcars | Minimum
Property, Plant and Equipment
Useful life	3 years
Vehicles and railcars | Maximum
Property, Plant and Equipment
Useful life	25 years
Water treatment facilities and equipment
Property, Plant and Equipment
Gross property, plant and equipment	$ 2,040,687	1,930,437
Water treatment facilities and equipment | Minimum
Property, Plant and Equipment
Useful life	3 years
Water treatment facilities and equipment | Maximum
Property, Plant and Equipment
Useful life	30 years
Crude oil tanks and related equipment
Property, Plant and Equipment
Gross property, plant and equipment	$ 236,805	238,924
Crude oil tanks and related equipment | Minimum
Property, Plant and Equipment
Useful life	2 years
Crude oil tanks and related equipment | Maximum
Property, Plant and Equipment
Useful life	30 years
Barges and towboats
Property, Plant and Equipment
Gross property, plant and equipment	$ 138,778	137,386
Barges and towboats | Minimum
Property, Plant and Equipment
Useful life	5 years
Barges and towboats | Maximum
Property, Plant and Equipment
Useful life	30 years
Information technology equipment
Property, Plant and Equipment
Gross property, plant and equipment	$ 48,664	50,220
Information technology equipment | Minimum
Property, Plant and Equipment
Useful life	3 years
Information technology equipment | Maximum
Property, Plant and Equipment
Useful life	7 years
Buildings and leasehold improvements
Property, Plant and Equipment
Gross property, plant and equipment	$ 151,071	165,679
Buildings and leasehold improvements | Minimum
Property, Plant and Equipment
Useful life	3 years
Buildings and leasehold improvements | Maximum
Property, Plant and Equipment
Useful life	40 years
Land
Property, Plant and Equipment
Gross property, plant and equipment	$ 100,038	100,352
Tank bottoms and linefill
Property, Plant and Equipment
Gross property, plant and equipment	30,443	20,237
Other
Property, Plant and Equipment
Gross property, plant and equipment	$ 15,252	15,054
Other | Minimum
Property, Plant and Equipment
Useful life	3 years
Other | Maximum
Property, Plant and Equipment
Useful life	20 years
Construction in progress
Property, Plant and Equipment
Gross property, plant and equipment	$ 55,690	$ 114,796