Consolidated Statements of Operations - USD ($) $ in Thousands	12 Months Ended
	Mar. 31, 2024	Mar. 31, 2023	Mar. 31, 2022
Total Revenues	$ 6,956,571	$ 8,694,904	$ 7,947,915
Total Cost of Sales	5,966,794	7,650,024	7,139,312
OPERATING COSTS AND EXPENSES:
Operating	305,185	313,725	285,535
General and administrative	121,881	71,818	63,546
Depreciation and amortization	266,523	273,621	288,720
Loss on disposal or impairment of assets, net	115,936	86,888	94,254
Revaluation of liabilities	2,680	9,665	(6,495)
Operating Income	177,572	289,163	83,043
OTHER INCOME (EXPENSE):
Equity in earnings of unconsolidated entities	4,120	4,120	1,400
Interest expense	(269,923)	(275,445)	(271,640)
(Loss) gain on early extinguishment of liabilities, net	(55,281)	6,177	1,813
Other income, net	2,793	28,748	2,254
(Loss) Income Before Income Taxes	(140,719)	52,763	(183,130)
INCOME TAX EXPENSE	(2,405)	(271)	(971)
Net (Loss) Income	(143,124)	52,492	(184,101)
LESS: NET INCOME ATTRIBUTABLE TO NONCONTROLLING INTERESTS	(631)	(1,106)	(655)
NET (LOSS) INCOME ATTRIBUTABLE TO NGL ENERGY PARTNERS LP	(143,755)	51,386	(184,756)
NET LOSS ALLOCATED TO COMMON UNITHOLDERS (NOTE 3)	$ (283,116)	$ (73,232)	$ (288,630)
Limited Partner
Basic loss per common unit	$ (2.14)	$ (0.56)	$ (2.22)
Diluted loss per common unit	$ (2.14)	$ (0.56)	$ (2.22)
BASIC WEIGHTED AVERAGE COMMON UNITS OUTSTANDING (in units)	132,146,477	131,007,171	129,840,234
DILUTED WEIGHTED AVERAGE COMMON UNITS OUTSTANDING (in units)	132,146,477	131,007,171	129,840,234
OTHER INCOME (EXPENSE):
Net (Loss) Income	$ (143,472)	$ 51,459	$ (184,467)
Limited Partner
BASIC WEIGHTED AVERAGE COMMON UNITS OUTSTANDING (in units)	132,146,477	131,007,171	129,840,234
DILUTED WEIGHTED AVERAGE COMMON UNITS OUTSTANDING (in units)	132,146,477	131,007,171	129,840,234
Water solutions
OPERATING COSTS AND EXPENSES:
Loss on disposal or impairment of assets, net	$ (6,900)	$ (26,300)
Crude oil logistics
OPERATING COSTS AND EXPENSES:
Loss on disposal or impairment of assets, net	(2,900)		$ 5,500
Liquids logistics
OPERATING COSTS AND EXPENSES:
Loss on disposal or impairment of assets, net	800		(11,800)
Operating segment | Water solutions
Total Revenues	730,818	697,038	544,866
Total Cost of Sales	11,294	14,100	33,980
OPERATING COSTS AND EXPENSES:
Operating Income	231,256	198,924	94,851
Operating segment | Crude oil logistics
Total Revenues	1,656,064	2,464,822	2,505,496
Total Cost of Sales	1,521,190	2,250,934	2,352,932
OPERATING COSTS AND EXPENSES:
Operating Income	52,074	81,524	45,033
Operating segment | Liquids logistics
Total Revenues	4,569,689	5,533,044	4,897,553
Total Cost of Sales	4,435,247	5,383,809	4,752,400
OPERATING COSTS AND EXPENSES:
Operating Income	2,481	66,624	(8,441)
Corporate and other
Total Cost of Sales	(937)	1,181	0
OPERATING COSTS AND EXPENSES:
Loss on disposal or impairment of assets, net	700
Operating Income	$ (108,239)	$ (57,909)	$ (48,400)