Annual report pursuant to Section 13 and 15(d)

Share-based compensation and other benefit plans - Additional Information (Detail)

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Share-based compensation and other benefit plans - Additional Information (Detail) (USD $)
12 Months Ended
Jun. 30, 2011
Year
Jun. 30, 2010
Jun. 30, 2009
Jun. 30, 2008
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Common stock outstanding awards 499,000 440,000 398,000 372,000
Weighted average fair value of options granted during the period $ 14.58 $ 14.76 $ 28.21  
Total intrinsic value of options exercised $ 3,100,000 $ 1,600,000 $ 648,000  
Total fair value of options vested 1,000,000 1,100,000 1,500,000  
Stock-based compensation cost 1,100,000 1,100,000 1,500,000  
Total unrecognized compensation cost related to non-vested stock options which will be expensed in fiscal 2012 through 2015 2,400,000      
Weighted average period over which the compensation cost is expected to be recognized 1.5      
Options for common stock granted 188,000 115,000 47,000  
Equity Incentive Plan 2010
       
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Number of shares authorized for grant 3,000,000      
Number of shares available for grant 2,800,000      
Maximum term of options granted under all Plans 10Y      
Common stock outstanding awards 183,000      
1998 Nonqualified Stock Option Plan
       
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Common stock outstanding awards 248,000      
1997 Incentive Stock Option Plan
       
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Common stock outstanding awards 68,000      
Stock Bonus Plans
       
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Benefit plan contributions charged to operation 690,000 419,000 647,000  
Performance Incentive Program
       
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Bonuses under certain employment agreements with executive officers 39,000 44,000 76,000  
Options for common stock granted 3,364 40,697 981  
UNITED STATES | Profit Sharing and Savings Plans
       
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Benefit plan contributions charged to operation 718,000 341,000 617,000  
R&D Europe | Defined Contribution Pension Plan
       
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Benefit plan contributions charged to operation $ 240,000 $ 162,000 $ 154,000