Condensed Consolidated Statements of Cash Flows (Unaudited) (USD $) In Thousands, unless otherwise specified	9 Months Ended
	Mar. 31, 2013	Mar. 31, 2012
Cash flows from operating activities:
Net income	$ 47,977	$ 54,503
Adjustments to reconcile net income to net cash provided by (used in) operating activities:
Depreciation and amortization	6,863	7,594
Provision for accounts and notes receivable	8,312	4,968
Share-based compensation and restricted stock	4,565	5,515
Deferred income taxes	(4,028)	(5,387)
Excess tax benefits from share-based payment arrangements	(849)	(150)
Change in fair value of contingent consideration	1,396	1,244
Changes in operating assets and liabilities, net of acquisitions:
Accounts receivable	33,605	90
Inventories	70,626	(44,859)
Prepaid expenses and other assets	(303)	1,424
Other non-current assets	3,658	(486)
Accounts payable	(94,951)	(297)
Accrued expenses and other liabilities	(2,696)	3,557
Income taxes payable	1,831	(2,648)
Net cash provided by (used in) operating activities	76,006	25,068
Cash flows from investing activities:
Capital expenditures	(4,463)	(10,187)
Net cash provided by (used in) investing activities	(4,463)	(10,187)
Cash flows from financing activities:
Borrowings (repayments) on short-term borrowings, net	(4,459)	(2,949)
Borrowings on revolving credit	515,262	1,132,968
Repayments on revolving credit	(515,877)	(1,117,312)
Debt issuance costs	0	(1,360)
Repayments on long-term debt	0	(25,000)
Contingent consideration payments	(4,777)	(2,000)
Exercise of stock options	2,231	8,071
Excess tax benefits from share-based payment arrangements	849	150
Net cash provided by (used in) financing activities	(6,771)	(7,432)
Effect of exchange rate changes on cash and cash equivalents	(40)	(1,901)
Increase (decrease) in cash and cash equivalents	64,732	5,548
Cash and cash equivalents at beginning of period	29,173	28,747
Cash and cash equivalents at end of period	$ 93,905	$ 34,295