Condensed Consolidated Statements of Cash Flows (Unaudited) (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Dec. 31, 2012	Dec. 31, 2011
CASH FLOWS FROM OPERATING ACTIVITIES:
Net income	$ 98,043	$ 43,113
Adjustments to reconcile net income to net cash from operating activities
Depreciation and amortization	49,351	24,188
Provision for uncollectible accounts	4,091	3,125
Net change in realized gains and losses deferred as cash flow hedges	(798)	(2,304)
Other, net	642	55
Net change in:
Accounts receivable	(115,620)	(79,556)
Inventories	(10,664)	(23,994)
Accounts payable	61,057	49,608
Other current assets	(3,532)	(481)
Other current liabilities	(42,084)	(25,602)
Net cash provided (used) by operating activities	40,486	(11,848)
CASH FLOWS FROM INVESTING ACTIVITIES:
Expenditures for property, plant and equipment	(26,489)	(21,603)
Proceeds from disposals of assets	1,793	993
Acquisitions of businesses, net of cash acquired	0	(1,273)
Net cash used by investing activities	(24,696)	(21,883)
CASH FLOWS FROM FINANCING ACTIVITIES:
Distributions	(79,293)	(44,283)
Noncontrolling interest activity	(1,439)	(608)
Increase in bank loans	127,300	130,500
Repayments of long-term debt	(4,855)	(1,908)
Proceeds associated with equity based compensation plans, net of tax withheld	18	153
Capital contributions from General Partner	7	1
Net cash provided by financing activities	41,738	83,855
Cash and cash equivalents increase	57,528	50,124
CASH AND CASH EQUIVALENTS:
End of period	117,630	58,756
Beginning of period	60,102	8,632
Increase	$ 57,528	$ 50,124