CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS (USD $) In Thousands, unless otherwise specified	6 Months Ended
	Mar. 31, 2012	Mar. 31, 2011
Cash Flows From Operating Activities:
Net income	$ 26,374	$ 21,160
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization	4,475	3,162
Amortization of debt issuance costs	22	33
Stock-based compensation	772	651
Deferred income taxes	155	443
Earnings of equity method investees	(156)	(136)
(Gain)/loss on disposal of property and equipment	31	0
Excess tax benefit of exercise of common stock options	(359)	(1,900)
Other	(40)	96
Changes in operating assets and liabilities (net of effects of business acquisitions):
Receivables	(28,321)	(13,663)
Inventories	(40,073)	(4,591)
Prepaid expenses and other current assets	3,479	5,183
Accounts payable	26,622	(12,332)
Accrued expenses	2,656	505
Net cash provided by operating activities	(4,363)	(1,389)
Cash Flows From Investing Activities:
Business acquisitions, net of cash acquired	(53,720)	(7,000)
Purchases of property and equipment	(3,282)	(9,130)
Proceeds from Sale of Property and Equipment	96	0
Other	(498)	79
Net cash used in investing activities	(57,404)	(16,051)
Cash Flows From Financing Activities:
Borrowings on credit facilities	255,980	172,129
Payments on credit facilities	(194,562)	(153,997)
Proceeds from issuance of common stock	254	189
Proceeds from exercise of stock options	91	69
Excess tax benefit of exercise of common stock options	359	1,900
Debt issuance costs	(111)	0
Payment on long-term debt and capital lease obligations	(390)	(2,902)
Net cash (used in)/provided by financing activities	61,621	17,388
Effect of Exchange Rate on Cash and Cash Equivalents	52	115
Net (Decrease)/Increase in Cash and Cash Equivalents	(94)	63
Cash and Cash Equivalents at Beginning of Period	606	911
Cash and Cash Equivalents at End of Period	$ 512	$ 974