Unaudited Condensed Consolidated Statements of Operations - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2021	Dec. 31, 2020
Total Revenues	$ 2,171,876	$ 1,462,019	$ 5,414,668	$ 3,474,592
Total Cost of Sales	1,950,321	1,278,879	4,800,707	2,920,816
OPERATING COSTS AND EXPENSES:
Operating	72,807	61,427	207,610	182,468
General and administrative	18,925	16,044	46,149	50,677
Depreciation and amortization	68,480	78,200	222,145	249,655
Loss on disposal or impairment of assets, net	12,233	373,776	93,463	391,752
Operating Income (Loss)	49,110	(346,307)	44,594	(320,776)
OTHER INCOME (EXPENSE):
Equity in earnings of unconsolidated entities	119	344	765	1,134
Interest expense	(68,379)	(47,252)	(204,004)	(138,148)
Gain on early extinguishment of liabilities, net	9	11,190	1,131	44,292
Other income, net	24	440	2,003	3,060
Loss From Continuing Operations Before Income Taxes	(19,117)	(381,585)	(155,511)	(410,438)
INCOME TAX BENEFIT	135	1,162	820	2,237
Loss From Continuing Operations	(18,982)	(380,423)	(154,691)	(408,201)
Loss From Discontinued Operations, net of Tax	0	(107)	0	(1,746)
Net Loss	(18,982)	(380,530)	(154,691)	(409,947)
LESS: NET LOSS (INCOME) ATTRIBUTABLE TO NONCONTROLLING INTERESTS	63	34	(705)	(185)
NET LOSS ATTRIBUTABLE TO NGL ENERGY PARTNERS LP	(18,919)	(380,496)	(155,396)	(410,132)
NET LOSS FROM CONTINUING OPERATIONS ALLOCATED TO COMMON UNITHOLDERS (NOTE 3)	(45,233)	(403,755)	(232,361)	(477,503)
NET LOSS FROM DISCONTINUED OPERATIONS ALLOCATED TO COMMON UNITHOLDERS (NOTE 3)	0	(107)	0	(1,744)
NET LOSS ALLOCATED TO COMMON UNITHOLDERS (NOTE 3)	$ (45,233)	$ (403,862)	$ (232,361)	$ (479,247)
BASIC LOSS PER COMMON UNIT
Loss From Continuing Operations	$ (0.35)	$ (3.13)	$ (1.79)	$ (3.71)
Loss From Discontinued Operations, net of Tax	0	0	0	(0.01)
Net Loss	(0.35)	(3.13)	(1.79)	(3.72)
DILUTED LOSS PER COMMON UNIT
Loss From Continuing Operations	(0.35)	(3.13)	(1.79)	(3.71)
Loss From Discontinued Operations, net of Tax	0	0	0	(0.01)
Net Loss	$ (0.35)	$ (3.13)	$ (1.79)	$ (3.72)
BASIC WEIGHTED AVERAGE COMMON UNITS OUTSTANDING (in units)	129,810,245	128,991,414	129,666,303	128,845,214
DILUTED WEIGHTED AVERAGE COMMON UNITS OUTSTANDING (in units)	129,810,245	128,991,414	129,666,303	128,845,214
Operating segment | Water solutions
Total Revenues	$ 130,653	$ 98,925	$ 397,089	$ 275,668
Total Cost of Sales	5,030	3,280	21,791	8,559
OPERATING COSTS AND EXPENSES:
Operating Income (Loss)	19,851	15,821	60,206	(13,503)
Operating segment | Crude oil logistics
Total Revenues	607,203	485,289	1,715,657	1,228,169
Total Cost of Sales	556,531	448,933	1,591,877	1,053,261
OPERATING COSTS AND EXPENSES:
Operating Income (Loss)	21,291	(382,192)	37,941	(310,633)
Operating segment | Liquids logistics
Total Revenues	1,434,020	877,491	3,301,922	1,969,813
Total Cost of Sales	1,388,760	826,211	3,187,039	1,857,633
OPERATING COSTS AND EXPENSES:
Operating Income (Loss)	23,158	32,438	(18,790)	51,338
Operating segment | Corporate and other
Total Revenues	0	314	0	942
Total Cost of Sales	$ 0	$ 455	$ 0	$ 1,363