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, 2014
Jun. 30, 2013
Jun. 30, 2012
Jun. 30, 2011
Deferred Compensation Arrangement with Individual [Line Items]        
Common stock outstanding awards 811,000 728,000 575,000 499,000
Weighted average fair value of options granted during the period $ 14.77 $ 9.72 $ 14.14  
Total intrinsic value of options exercised $ 3,700,000 $ 400,000 $ 300,000  
Total fair value of options vested 2,200,000 1,500,000 1,600,000  
Stock-based compensation cost 3,523,000 1,864,000 1,641,000  
Total unrecognized compensation cost related to non-vested stock options which will be expensed in fiscal 2015 through 2018 5,500,000      
Weighted average period over which the compensation cost is expected to be recognized 1 year 2 months 12 days      
Options for common stock granted 251,000 175,000 95,000  
United States | Profit Sharing and Savings Plans
        
Deferred Compensation Arrangement with Individual [Line Items]        
Benefit plan contributions expense 700,000 0 800,000  
United Kingdom | Defined Contribution Pension Plan
        
Deferred Compensation Arrangement with Individual [Line Items]        
Benefit plan contributions expense 600,000 600,000 500,000  
Restricted Stock
        
Deferred Compensation Arrangement with Individual [Line Items]        
Restricted stock granted 26,355 15,000    
Weighted average grant date fair values per share $ 86.60 $ 67.46    
Non-vested restricted common stock 36,355 15,000    
Restricted Stock Units (RSUs)
        
Deferred Compensation Arrangement with Individual [Line Items]        
Restricted stock granted 5,000      
Weighted average grant date fair values per share $ 86.25      
Restricted stock units vesting period 3 years      
Equity Incentive Plan 2010
        
Deferred Compensation Arrangement with Individual [Line Items]        
Number of shares authorized for grant 3,000,000      
Number of shares available for grant 2,300,000      
Common stock outstanding awards 656,000      
Equity Incentive Plan 2010 | Maximum
        
Deferred Compensation Arrangement with Individual [Line Items]        
Maximum term of options granted under all Plans 10 years      
1998 Nonqualified Stock Option Plan
        
Deferred Compensation Arrangement with Individual [Line Items]        
Common stock outstanding awards 151,000      
1997 Incentive Stock Option Plan
        
Deferred Compensation Arrangement with Individual [Line Items]        
Common stock outstanding awards 9,000      
Performance Incentive Programs | Executive Officer
        
Deferred Compensation Arrangement with Individual [Line Items]        
Bonuses under certain employment agreements with executive officers $ 900,000 $ 300,000 $ 31,000  
Options for common stock granted 216,000 132,852 22,932  
Performance Incentive Programs | Restricted Stock | Executive Officer
        
Deferred Compensation Arrangement with Individual [Line Items]        
Restricted stock shares issued 17,855 15,000    
Performance Incentive Programs | Restricted Stock Units (RSUs) | Executive Officer
        
Deferred Compensation Arrangement with Individual [Line Items]        
Restricted stock shares issued 5,000