Consolidated Statements of Cash Flows (USD $)	6 Months Ended	12 Months Ended		6 Months Ended
	Mar. 31, 2011	Mar. 31, 2013	Mar. 31, 2012	Sep. 30, 2010 NGL Supply, Inc.
OPERATING ACTIVITIES:
Net income (loss)	$ 12,679,000	$ 48,190,000	$ 7,864,000	$ 2,560,000
Adjustments to reconcile net income (loss) to net cash provided by (used in) operating activities:
Depreciation and amortization, including debt issuance cost amortization	4,406,000	77,513,000	17,188,000	1,825,000
Loss on early extinguishment of debt		5,769,000
Non-cash equity-based compensation		8,670,000
(Gain) loss on sale of assets	16,000	187,000	(71,000)	(124,000)
Provision for doubtful accounts	269,000	1,315,000	1,049,000	3,000
(Gain) loss on commodity derivative financial instruments	(1,468,000)	4,376,000	(5,974,000)	(226,000)
Other	3,000	375,000	403,000	(1,409,000)
Changes in operating assets and liabilities, net of acquisitions -
Accounts receivable	(813,000)	2,430,000	(20,179,000)	203,000
Inventories	60,413,000	18,433,000	30,268,000	(59,598,000)
Product exchanges, net	(16,329,000)	1,816,000	4,775,000	18,688,000
Other current assets	3,697,000	20,769,000	9,569,000	(1,023,000)
Trade accounts payable	2,835,000	(17,281,000)	35,747,000	(3,741,000)
Accrued expenses and other payables	(1,209,000)	(9,592,000)	366,000	(2,699,000)
Accounts receivable/payable - affiliates, net		(19,690,000)	4,742,000
Advance payments received from customers	(30,490,000)	(11,049,000)	4,582,000	19,912,000
Net cash provided by (used in) operating activities	34,009,000	132,231,000	90,329,000	(30,749,000)
INVESTING ACTIVITIES:
Purchases of long-lived assets	(1,440,000)	(72,475,000)	(7,544,000)	(280,000)
Acquisitions of businesses, including acquired working capital	(17,400,000)	(490,402,000)	(297,401,000)	(123,000)
Net cash flows on non-hedge commodity derivative financial instruments	111,000	11,579,000	6,464,000	426,000
Proceeds from sales of assets	291,000	5,080,000	1,238,000	185,000
Other			346,000	125,000
Net cash provided by (used in) investing activities	(18,438,000)	(546,218,000)	(296,897,000)	333,000
FINANCING ACTIVITIES:
Issuance of senior notes		250,000,000
Proceeds from borrowings under revolving credit facilities	149,500,000	1,227,975,000	478,900,000	34,490,000
Payments on revolving credit facilities	(112,381,000)	(964,475,000)	(329,900,000)	(13,590,000)
Proceeds from borrowings under other long-term debt		653,000
Payments on other long-term debt	(5,902,000)	(4,837,000)	(1,278,000)	(722,000)
Debt issuance costs	(4,928,000)	(20,189,000)	(2,380,000)
Distributions to partners		(71,682,000)	(19,060,000)
Contributions	11,040,000	913,000	440,000
Proceeds from sale of common units, net of offering costs		(642,000)	74,759,000
Collection of NGL Supply stock option receivables	1,430,000
Deferred offering costs	(1,929,000)
Distributions to shareholders of NGL Supply	(40,000,000)
Common stock dividends				(7,000,000)
Other				(17,000)
Redemption of preferred stock				(3,000,000)
Repurchase of common units			(3,418,000)
Net cash provided by (used in) financing activities	(3,170,000)	417,716,000	198,063,000	10,161,000
EFFECT OF EXCHANGE RATE CHANGES ON CASH	(47,000)
Net increase (decrease) in cash and cash equivalents	12,354,000	3,729,000	(8,505,000)	(20,255,000)
Cash and cash equivalents, beginning of period	3,983,000	7,832,000	16,337,000	24,238,000
Cash and cash equivalents, end of period	$ 16,337,000	$ 11,561,000	$ 7,832,000	$ 3,983,000