Consolidated Statement Of Shareholders' Equity (USD $) In Thousands, unless otherwise specified	Common Stock [Member]	Additional Paid-In Capital [Member]	Retained Earnings [Member]	Treasury Stock [Member]	Accumulated Other Comprehensive Income [Member]	Total
Balance at Jun. 30, 2011	$ 334	$ 327,226	$ 159,935	$ (74,871)	$ 5,141	$ 417,765
Balance, shares at Jun. 30, 2011	33,453			(4,353)
Issuance of common stock upon exercise of options	4	5,254				5,258
Issuance of common stock upon exercise of options,shares	390
Issuance of restricted stock, net of forfeitures	(1)	(2,098)				(2,099)
Issuance of restricted stock, net of forfeitures,shares	(177)
Issuance of common stock for employee stock purchase plan		958				958
Issuance of common stock for employee stock purchase plan, shares	39
Amortization of share-based awards		3,758				3,758
Excess tax benefit from share-based awards		4,663				4,663
Comprehensive Income:
Net Income			53,794			53,794
Foreign currency translation adjustments					(3,536)	(3,536)
Disclosure of reclassification amounts, net of taxes
Unrealized hedging gain arising during the period					2,174	2,174
Less: reclassification adjustment for hedging losses included in net income					630	630
Net unrealized cash flow hedging gain					1,544	1,544
Total comprehensive income (loss)			53,794		(1,992)	51,802
Balance at Mar. 31, 2012	$ 337	$ 339,761	$ 213,729	$ (74,871)	$ 3,149	$ 482,105
Balance, shares at Mar. 31, 2012	33,705			(4,353)