Condensed Consolidated Statements Of Stockholders' Equity (USD $) In Thousands, except Share data	Common Stock [Member]	Additional Paid-In Capital [Member]	Retained Earnings [Member]	Treasury Stock [Member]	Accumulated Other Comprehensive Income (Loss) [Member]	Total
Balance at Jun. 30, 2011	$ 451	$ 582,972	$ 295,886	$ (19,750)	$ 7,144	$ 866,703
Balance, shares at Jun. 30, 2011	45,045,097			1,144,610		45,045,097
Net income			11,690			11,690
Foreign currency translation adjustments, net of tax					(9,418)	(9,418)
Change in deferred gains on cash flow hedging instruments, net of tax					975	975
Change in unrealized loss on available for sale investment, net of tax					(1,347)	(1,347)
Total comprehensive income						1,900
Issuance of common stock pursuant to compensation plans	1	4,260				4,261
Issuance of common stock pursuant to stock based compensation plans, shares	187,208
Stock based compensation income tax effects		1,114				1,114
Shares withheld for payment of employee payroll taxes due on shares issued under stock based compensation plans				(831)		(831)
Shares withheld for payment of employee payroll taxes due on shares issued under stock based compensation plans, shares				26,751
Stock based compensation charge		1,794				1,794
Balance at Sep. 30, 2011	$ 452	$ 590,140	$ 307,576	$ (20,581)	$ (2,646)	$ 874,941
Balance, shares at Sep. 30, 2011	45,232,305			1,171,361		45,232,305