Quarterly report pursuant to Section 13 or 15(d)

Income Taxes (Details)

v2.4.0.6
Income Taxes (Details) (USD $)
 3 Months Ended 6 Months Ended
Dec. 31, 2012
Dec. 31, 2011
Dec. 31, 2012
Dec. 31, 2011
Income before income taxes $ 144,874,000 $ 146,907,000 $ 321,416,000 $ 394,169,000
Provision for income taxes 38,244,000 36,110,000 79,419,000 91,377,000
Unrecognized Tax Benefits, Decreases Resulting from Settlements with Taxing Authorities       (18,300,000)
Unrecognized Tax Benefits, Decreases Resulting from Prior Period Tax Positions       (18,000,000)
Effective tax rate 26.40% 24.60% 24.70% 23.20%
Estimated effective tax rate for the fiscal year ending June 30, 2013 26.00%      
Income Tax Expense, Effective Rate Comparison Decrease, Tax Credits, Research   (2,600,000)   (5,800,000)
Income Tax Expense (Benefit), Expected Research Tax Credit in three months ending March 31, 2013     16,400,000  
Potential unrecognized tax benefits during next 12 months 1,700,000   1,700,000  
Jurisdictions With Tax Rates Lower Than Statutory Tax Rate [Member]
        
Increase (Decrease) in Income Taxes 8,700,000   7,900,000  
Non-deductible Decrease In Assets Held
        
Provision for income taxes     (2,200,000) 2,500,000
Increase (Decrease) in Income Taxes     (4,700,000)  
Employee Stock Activity [Member]
        
Provision for income taxes (3,500,000) 5,100,000 (3,500,000) 5,200,000
Increase (Decrease) in Income Taxes (8,600,000)   (8,700,000)  
Migration Of Companys Manufacturing To Singapore [Member]
        
Increase (Decrease) in Income Taxes     $ 23,600,000