Unaudited Condensed Consolidated Balance Sheets - USD ($) $ in Thousands	6 Months Ended
	Sep. 30, 2023	Mar. 31, 2023
CURRENT ASSETS:
Cash and cash equivalents	$ 2,680	$ 5,431
Accounts receivable-trade, allowance for expected credit loss	1,840	1,964
Inventories	250,572	142,607
Prepaid expenses and other current assets	137,585	98,089
Total current assets	1,563,582	1,292,445
PROPERTY, PLANT AND EQUIPMENT, net of accumulated depreciation of $908,595 and $898,184, respectively	2,166,103	2,223,380
PROPERTY, PLANT AND EQUIPMENT, accumulated depreciation	(908,595)	(898,184)
GOODWILL	707,583	712,364
INTANGIBLE ASSETS, net of accumulated amortization of $406,653 and $580,860, respectively	1,016,820	1,058,668
INTANGIBLE ASSETS, accumulated amortization	(406,653)	(580,860)
INVESTMENTS IN UNCONSOLIDATED ENTITIES	20,900	21,090
OPERATING LEASE RIGHT-OF-USE ASSETS	95,231	90,220
OTHER NONCURRENT ASSETS	57,696	57,977
Total assets	5,627,915	5,456,144
CURRENT LIABILITIES:
Accrued expenses and other payables	164,115	133,616
Advance payments received from customers	29,239	14,699
Operating lease obligations	33,376	34,166
Total current liabilities	1,307,447	1,110,137
LONG-TERM DEBT, net of debt issuance costs of $24,385 and $30,117, respectively	2,782,262	2,857,805
Debt issuance costs, noncurrent, net	(24,385)	(30,117)
OPERATING LEASE OBLIGATIONS	63,975	58,450
OTHER NONCURRENT LIABILITIES	107,945	111,226
COMMITMENTS AND CONTINGENCIES (NOTE 8)
EQUITY:
General partner, representing a 0.1% interest, 132,059 and 132,059 notional units, respectively	(52,572)	(52,551)
Limited partners, representing a 99.9% interest, 131,927,343 and 131,927,343 common units issued and outstanding, respectively	503,798	455,564
Accumulated other comprehensive loss	(473)	(450)
Noncontrolling interests	16,077	16,507
Total equity	815,189	767,429
Total liabilities and equity	5,627,915	5,456,144
Nonrelated Party
CURRENT ASSETS:
Accounts receivable-trade, net of allowance for expected credit losses of $1,840 and $1,964, respectively	1,157,710	1,033,956
CURRENT LIABILITIES:
Accounts payable	1,080,673	927,591
Related Party
CURRENT ASSETS:
Accounts receivable-affiliates	15,035	12,362
CURRENT LIABILITIES:
Accounts payable	$ 44	$ 65
NGL Energy Holdings LLC | NGL Energy Partners LP
EQUITY:
General partner interest	0.10%
NGL Limited Partners | NGL Energy Partners LP
EQUITY:
Limited partner interest	99.90%
NGL Energy Holdings LLC
EQUITY:
General partner, notional units outstanding (in units)	132,059	132,059
Limited Partner
EQUITY:
Limited partners, common units issued and outstanding (in units)	131,927,343	131,927,343
Series D Preferred Stock
CURRENT LIABILITIES:
CLASS D 9.00% PREFERRED UNITS, 600,000 and 600,000 preferred units issued and outstanding, respectively	$ 551,097	$ 551,097
Preferred units dividend rate	9.00%
Temporary equity, issued and outstanding (in units)	600,000	600,000
Series B Preferred Stock
EQUITY:
Preferred limited partners	$ 305,468	$ 305,468
Preferred units, issued and outstanding (in units)	12,585,642	12,585,642
Series C Preferred Stock
EQUITY:
Preferred limited partners	$ 42,891	$ 42,891
Preferred units, issued and outstanding (in units)	1,800,000	1,800,000