Consolidated Statement Of Shareholders' Equity (USD $) In Thousands	Common Stock [Member]	Additional Paid-In Capital [Member]	Retained Earnings [Member]	Treasury Stock [Member]	Accumulated Other Comprehensive Income [Member]	Total
Balance at Jun. 30, 2012	$ 338	$ 337,740	$ 217,354	$ (74,871)	$ 1,166	$ 481,727
Balance, shares at Jun. 30, 2012	33,789			(4,353)
Issuance of common stock upon exercise of options, net of tax withholdings of $1,444	3	3,246				3,249
Issuance of common stock upon exercise of options, net of tax withholdings of $1,444, shares	359
Issuance of common stock for employee stock purchase plan		1,057				1,057
Issuance of common stock for employee stock purchase plan, shares	37
Restricted stock, forfeitures and tax withholdings		(2,748)				(2,748)
Restricted stock, forfeitures and tax withholdings, shares	(30)
Amortization of share-based awards		4,247				4,247
Repurchase of common stock				(12,515)		(12,515)
Repurchase of common stock, shares				(323)
Excess tax benefit from share-based awards		5,062				5,062
Net Income			45,720			45,720
Foreign currency translation adjustments					(1,157)	(1,157)	[1]
Net unrealized cash flow hedging gain					770	770	[2]
Balance at Mar. 31, 2013	$ 341	$ 348,604	$ 263,074	$ (87,386)	$ 779	$ 525,412
Balance, shares at Mar. 31, 2013	34,155			(4,676)

[1] Foreign currency translation adjustments are not adjusted for income taxes since they relate to indefinite investments in non-U.S. subsidiaries.

[2] Net of tax expense of $77 for the three months ended March 31, 2013 and net of tax benefit of $101 for the three months ended March 31, 2012. Net of tax expense of $19 and $585 for the nine months ended March 31, 2013 and 2012, respectively.