CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS (USD $) In Thousands, unless otherwise specified	6 Months Ended
	Mar. 31, 2013	Mar. 31, 2012
Cash Flows From Operating Activities:
Net income	$ 31,851	$ 26,374
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization	4,916	4,475
Amortization of debt issuance costs	19	22
Stock-based compensation	2,087	772
Deferred income taxes	(83)	155
Earnings of equity method investees	(178)	(156)
(Gain)/loss on disposal of property and equipment	55	31
Excess tax benefit of exercise of common stock options	(267)	(359)
Pension payment	0	0
Other	(167)	(40)
Changes in operating assets and liabilities (net of effects of business acquisitions):
Receivables	(14,196)	(28,321)
Inventories	(17,021)	(40,073)
Prepaid expenses and other current assets	3,159	3,479
Accounts payable	(2,952)	26,622
Accrued expenses	(1,452)	2,656
Net cash provided by operating activities	5,771	(4,363)
Cash Flows From Investing Activities:
Business acquisitions, net of cash acquired	(17,006)	(53,720)
Purchases of property and equipment	(5,316)	(3,282)
Proceeds from Sale of Property and Equipment	72	96
Other	(235)	(498)
Net cash used in investing activities	(22,485)	(57,404)
Cash Flows From Financing Activities:
Borrowings on credit facilities	357,280	255,980
Payments on credit facilities	(340,860)	(194,562)
Proceeds from issuance of common stock	309	254
Proceeds from exercise of stock options	94	91
Excess tax benefit of exercise of common stock options	267	359
Debt issuance costs	0	(111)
Payment on long-term debt and capital lease obligations	(187)	(390)
Net cash (used in)/provided by financing activities	16,903	61,621
Effect of Exchange Rate on Cash and Cash Equivalents	(251)	52
Net (Decrease)/Increase in Cash and Cash Equivalents	(62)	(94)
Cash and Cash Equivalents at Beginning of Period	514	606
Cash and Cash Equivalents at End of Period	$ 452	$ 512