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Stock Benefit Plans - Schedule of Share Based Compensation Options Outstanding and Exercisable By Price Range (Detail) (USD $)
 12 Months Ended
Jun. 30, 2014
Jun. 30, 2013
Jun. 30, 2012
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]      
Options Outstanding, Number of Shares 7,512,592 10,039,450 9,712,316
Options Outstanding, Weighted Average Remaining Contractual Term 3 years 3 months 7 days 3 years 4 months 21 days  
Options Outstanding, Weighted Average Exercise Price $ 10.32 $ 10.31 $ 10.62
$4.60 - $6.90 [Member]
      
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]      
Weighted Average Exercise Price, Lower $ 4.60    
Weighted Average Exercise Price, Upper $ 6.90    
Options Outstanding, Number of Shares 801,563    
Options Outstanding, Weighted Average Remaining Contractual Term 3 years 8 months 1 day    
Options Outstanding, Weighted Average Exercise Price $ 5.76    
Options Exercisable, Number of Shares 544,039    
Options Exercisable, Weighted Average Exercise Price $ 5.63    
$7.01 - $9.00 [Member]
      
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]      
Weighted Average Exercise Price, Lower $ 7.01    
Weighted Average Exercise Price, Upper $ 9.00    
Options Outstanding, Number of Shares 254,719    
Options Outstanding, Weighted Average Remaining Contractual Term 3 years 3 months 4 days    
Options Outstanding, Weighted Average Exercise Price $ 8.20    
Options Exercisable, Number of Shares 180,719    
Options Exercisable, Weighted Average Exercise Price $ 8.17    
$9.01 - $9.01 [Member]
      
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]      
Weighted Average Exercise Price, Lower $ 9.01    
Weighted Average Exercise Price, Upper $ 9.01    
Options Outstanding, Number of Shares 1,382,452    
Options Outstanding, Weighted Average Remaining Contractual Term 1 year 8 months 5 days    
Options Outstanding, Weighted Average Exercise Price $ 9.01    
Options Exercisable, Number of Shares 1,382,452    
Options Exercisable, Weighted Average Exercise Price $ 9.01    
$9.23 - $9.44 [Member]
      
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]      
Weighted Average Exercise Price, Lower $ 9.23    
Weighted Average Exercise Price, Upper $ 9.44    
Options Outstanding, Number of Shares 381,274    
Options Outstanding, Weighted Average Remaining Contractual Term 4 years 3 months 15 days    
Options Outstanding, Weighted Average Exercise Price $ 9.34    
Options Exercisable, Number of Shares 306,270    
Options Exercisable, Weighted Average Exercise Price $ 9.34    
$9.55 - $9.55 [Member]
      
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]      
Weighted Average Exercise Price, Lower $ 9.55    
Weighted Average Exercise Price, Upper $ 9.55    
Options Outstanding, Number of Shares 790,750    
Options Outstanding, Weighted Average Remaining Contractual Term 6 years 26 days    
Options Outstanding, Weighted Average Exercise Price $ 9.55    
Options Exercisable, Number of Shares 0    
Options Exercisable, Weighted Average Exercise Price $ 0.00    
$9.64 - $9.91 [Member]
      
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]      
Weighted Average Exercise Price, Lower $ 9.64    
Weighted Average Exercise Price, Upper $ 9.91    
Options Outstanding, Number of Shares 755,205    
Options Outstanding, Weighted Average Remaining Contractual Term 4 years 8 months 19 days    
Options Outstanding, Weighted Average Exercise Price $ 9.67    
Options Exercisable, Number of Shares 404,420    
Options Exercisable, Weighted Average Exercise Price $ 9.70    
$10.28 - $10.28 [Member]
      
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]      
Weighted Average Exercise Price, Lower $ 10.28    
Weighted Average Exercise Price, Upper $ 10.28    
Options Outstanding, Number of Shares 955,053    
Options Outstanding, Weighted Average Remaining Contractual Term 11 months 16 days    
Options Outstanding, Weighted Average Exercise Price $ 10.28    
Options Exercisable, Number of Shares 955,053    
Options Exercisable, Weighted Average Exercise Price $ 10.28    
$10.34 - $11.26 [Member]
      
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]      
Weighted Average Exercise Price, Lower $ 10.34    
Weighted Average Exercise Price, Upper $ 11.26    
Options Outstanding, Number of Shares 436,231    
Options Outstanding, Weighted Average Remaining Contractual Term 3 years 1 month 6 days    
Options Outstanding, Weighted Average Exercise Price $ 10.85    
Options Exercisable, Number of Shares 427,261    
Options Exercisable, Weighted Average Exercise Price $ 10.84    
$11.67 - $11.67 [Member]
      
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]      
Weighted Average Exercise Price, Lower $ 11.67    
Weighted Average Exercise Price, Upper $ 11.67    
Options Outstanding, Number of Shares 848,350    
Options Outstanding, Weighted Average Remaining Contractual Term 4 years 1 month 2 days    
Options Outstanding, Weighted Average Exercise Price $ 11.67    
Options Exercisable, Number of Shares 598,256    
Options Exercisable, Weighted Average Exercise Price $ 11.67    
$12.43 - $19.00 [Member]
      
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]      
Weighted Average Exercise Price, Lower $ 12.43    
Weighted Average Exercise Price, Upper $ 19.00    
Options Outstanding, Number of Shares 906,995    
Options Outstanding, Weighted Average Remaining Contractual Term 3 years 15 days    
Options Outstanding, Weighted Average Exercise Price $ 17.11    
Options Exercisable, Number of Shares 898,929    
Options Exercisable, Weighted Average Exercise Price $ 17.13    
$4.60 - $19.00 [Member]
      
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]      
Weighted Average Exercise Price, Lower $ 4.60    
Weighted Average Exercise Price, Upper $ 19.00    
Options Outstanding, Number of Shares 7,512,592    
Options Outstanding, Weighted Average Remaining Contractual Term 3 years 3 months 7 days    
Options Outstanding, Weighted Average Exercise Price $ 10.32    
Options Exercisable, Number of Shares 5,697,399    
Options Exercisable, Weighted Average Exercise Price $ 10.64