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Property, Plant and Equipment (Details) - USD ($) $ in Thousands	3 Months Ended
	Jun. 30, 2025	Jun. 30, 2024	Mar. 31, 2025
Property, Plant and Equipment
Gross property, plant and equipment	$ 3,180,671		$ 3,171,429
Accumulated depreciation	(1,144,479)		(1,104,582)
Net property, plant and equipment	2,036,192		2,066,847
Finance lease, right-of-use asset	5,800		100
Depreciation expense	53,417	$ 47,919
Capitalized interest expense	84	$ 543
Gain (loss) on sales and write-downs of certain assets	1,477
Corporate and other
Property, Plant and Equipment
Gain (loss) on sales and write-downs of certain assets	(1)
Water Solutions
Property, Plant and Equipment
Gain (loss) on sales and write-downs of certain assets	1,494
Crude Oil Logistics
Property, Plant and Equipment
Gain (loss) on sales and write-downs of certain assets	(3)
Liquids Logistics
Property, Plant and Equipment
Gain (loss) on sales and write-downs of certain assets	(13)
Water treatment facilities and equipment (1)
Property, Plant and Equipment
Gross property, plant and equipment	$ 2,261,118		2,240,919
Water treatment facilities and equipment (1) | Minimum
Property, Plant and Equipment
Useful life	3 years
Water treatment facilities and equipment (1) | Maximum
Property, Plant and Equipment
Useful life	30 years
Pipeline and related facilities
Property, Plant and Equipment
Gross property, plant and equipment	$ 266,324		266,324
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
Crude oil tanks and related equipment
Property, Plant and Equipment
Gross property, plant and equipment	$ 230,719		230,174
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
Buildings and leasehold improvements
Property, Plant and Equipment
Gross property, plant and equipment	$ 124,900		124,388
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
Natural gas liquids terminal and storage assets
Property, Plant and Equipment
Gross property, plant and equipment	$ 100,120		99,805
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
Land
Property, Plant and Equipment
Gross property, plant and equipment	$ 64,600		64,733
Information technology equipment
Property, Plant and Equipment
Gross property, plant and equipment	$ 31,028		31,319
Information technology equipment | Minimum
Property, Plant and Equipment
Useful life	3 years
Information technology equipment | Maximum
Property, Plant and Equipment
Useful life	7 years
Tank bottoms and linefill (2)
Property, Plant and Equipment
Gross property, plant and equipment	$ 30,623		30,623
Vehicles and railcars
Property, Plant and Equipment
Gross property, plant and equipment	$ 22,830		33,629
Vehicles and railcars | Minimum
Property, Plant and Equipment
Useful life	3 years
Vehicles and railcars | Maximum
Property, Plant and Equipment
Useful life	25 years
Other
Property, Plant and Equipment
Gross property, plant and equipment	$ 19,139		19,161
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	$ 29,270		$ 30,354

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