Quarterly report pursuant to Section 13 or 15(d)

Marketable Securities (Details)

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Marketable Securities (Details) (USD $)
In Thousands, unless otherwise specified
3 Months Ended 12 Months Ended
Mar. 31, 2012
Jun. 30, 2011
Marketable Securities    
Amortized Cost $ 2,154,156 $ 1,801,110
Gross Unrealized Gains 5,559 6,712
Gross Unrealized Losses (875) (545)
Fair Value 2,158,840 1,807,277
Add: Time deposits 69,663 [1] 65,402 [1]
Less: Cash Equivalents, Amortized Cost 622,678 545,475
Cash Equivalents, Gross Unrealized Gains 0 0
Cash Equivalents, Gross Unrealized Losses 0 (2)
Cash Equivalents, Net of Unrealized Gains and Losses 622,678 545,473
Marketable Securities, Gross Unrealized Gains 5,559 6,712
Marketable Securities, Gross Unrealized Losses (875) (543)
Contractual Maturities of Securities [Abstract]    
Due within one year, Amortized Cost 369,877  
Due after one year through three years, Amortized Cost 1,231,264  
Marketable Securities, Amortized Cost 1,601,141 1,321,037
Due within one year, Fair Value 371,080  
Due after one year through three years, Fair Value 1,234,745  
Marketable Securities, Fair Value 1,605,825 1,327,206
U.S. Treasury securities
   
Marketable Securities    
Amortized Cost 95,693 58,754
Gross Unrealized Gains 140 165
Gross Unrealized Losses (45) (23)
Fair Value 95,788 58,896
U.S. Government agency securities
   
Marketable Securities    
Amortized Cost 561,286 319,375
Gross Unrealized Gains 777 931
Gross Unrealized Losses (310) (123)
Fair Value 561,753 320,183
Municipal securities
   
Marketable Securities    
Amortized Cost 41,623 38,688
Gross Unrealized Gains 150 275
Gross Unrealized Losses (5) (6)
Fair Value 41,768 38,957
Corporate debt securities
   
Marketable Securities    
Amortized Cost 868,270 870,591
Gross Unrealized Gains 4,366 5,162
Gross Unrealized Losses (513) (368)
Fair Value 872,123 875,385
Money market and other
   
Marketable Securities    
Amortized Cost 551,568 481,770
Gross Unrealized Gains 0 0
Gross Unrealized Losses 0 0
Fair Value 551,568 481,770
Sovereign securities
   
Marketable Securities    
Amortized Cost 33,789 31,932
Gross Unrealized Gains 110 179
Gross Unrealized Losses (2) (25)
Fair Value 33,897 32,086
Equity Securities [Member]
   
Marketable Securities    
Amortized Cost 1,927  
Gross Unrealized Gains 16  
Gross Unrealized Losses 0  
Fair Value $ 1,943  
[1] Time deposits excluded from fair value measurements.