Quarterly report pursuant to Section 13 or 15(d)

Income Taxes (Details)

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Income Taxes (Details) (USD $)
3 Months Ended 9 Months Ended
Mar. 31, 2014
Mar. 31, 2013
Mar. 31, 2014
Mar. 31, 2013
Operating Loss Carryforwards        
Income before income taxes $ 251,246,000 $ 192,115,000 $ 567,855,000 $ 513,531,000
Provision for income taxes 47,665,000 25,733,000 113,831,000 105,152,000
Effective tax rate 19.00% 13.40% 20.00% 20.50%
Estimated effective tax rate for the fiscal year ending June 30, 2014 20.60%      
Unrecognized tax benefits, reduction in next twelve months resulting from lapse of applicable statute of limitations     9,900,000  
Unrecognized Tax Benefits, Expiration of the Statue of Limitations
       
Operating Loss Carryforwards        
Decrease in income taxes     (5,500,000)  
U.S. Federal Research Tax Credit
       
Operating Loss Carryforwards        
Decrease in income taxes   (15,600,000)   (8,700,000)
Jurisdictions With Tax Rates Lower Than U.S. Statutory Tax Rate
       
Operating Loss Carryforwards        
Decrease in income taxes     $ (8,600,000)