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Consolidated Statements Of Stockholders' Equity (Parenthetical) (USD $)
In Thousands, except Share data
 12 Months Ended
Jun. 30, 2011
Jun. 30, 2010
Jun. 30, 2009
Consolidated Statement Of Stockholders' Equity      
Common shares 43,646,677 41,699,509 41,106,078
Treasury shares 1,072,705 1,001,898 945,590
Foreign currency translation adjustments $ (692) $ 6,356  
Deferred gains on cash flow hedging instruments, tax 251 32 (89)
Unrealized loss on available for sale investment, tax $ (51) $ (181) $ 475
Issuance of common stock pursuant to stock compensation plans, shares 1,156,235 336,111 467,795
Shares withheld for payment of employee payroll taxes due on shares issued under stock based compensation plans, shares 71,905 70,807 56,308
Issuance of common stock in connection with acquisition, shares 242,185 1,558,442  
Issuance of common stock in connection with license agreement, shares   52,615 125,636
Common shares 45,045,097 43,646,677 41,699,509
Treasury shares 1,144,610 1,072,705 1,001,898