CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS (USD $) In Thousands, unless otherwise specified	9 Months Ended
	Jun. 30, 2014	Jun. 30, 2013
Cash Flows From Operating Activities:
Net income	$ 54,581	$ 48,632
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization	8,714	7,466
Amortization of debt issuance costs	29	29
Stock-based compensation	3,992	2,760
Deferred income taxes	(731)	404
Earnings of equity method investees	(261)	(253)
Proceeds from Equity Method Investment, Dividends or Distributions	337
Excess tax benefit of exercise of common stock options and restricted stock vesting	(267)	(290)
(Gain)/loss on disposal of property and equipment	(33)	92
Other	(33)	(188)
Changes in operating assets and liabilities (net of effects of business acquisitions):
Receivables	2,336	(20,821)
Inventories	18,693	(31,892)
Prepaid expenses and other assets	1,993	3,708
Accounts payable	(41,524)	50,247
Accrued expenses	6,509	576
Net cash provided by operating activities	54,335	60,470
Cash Flows From Investing Activities:
Business acquisitions, net of cash acquired in fiscal year 2014 of $1,387	(78,246)	(17,006)
Purchases of property and equipment	(11,575)	(7,845)
Proceeds from sales of property and equipment	141	103
Other	(220)	(238)
Net cash used in investing activities	(89,900)	(24,986)
Cash Flows From Financing Activities:
Borrowings on credit facilities	555,767	482,623
Payments on credit facilities	(519,628)	(518,511)
Proceeds from issuance of common stock	606	471
Proceeds from exercise of stock options	58	99
Excess tax benefit of exercise of common stock options and restricted stock vesting	267	290
Tax withholdings on net settlements of share-based awards	(155)
Payment on long-term debt and capital lease obligations	(110)	(263)
Other	(125)
Net cash (used in)/provided by financing activities	36,680	(35,291)
Effect of Exchange Rate on Cash and Cash Equivalents	576	(176)
Net Increase (Decrease) in Cash and Cash Equivalents	1,691	17
Cash and Cash Equivalents at Beginning of Period	953	514
Cash and Cash Equivalents at End of Period	$ 2,644	$ 531