Quarterly report pursuant to Section 13 or 15(d)

Marketable Securities - Contractual Maturities (Details)

v2.4.1.9
Marketable Securities - Contractual Maturities (Details) (USD $)
3 Months Ended 9 Months Ended
Mar. 31, 2015
Mar. 31, 2014
Mar. 31, 2015
Mar. 31, 2014
Jun. 30, 2014
Amortized Cost          
Due within one year $ 625,908,000us-gaap_AvailableForSaleSecuritiesDebtMaturitiesWithinOneYearAmortizedCost   $ 625,908,000us-gaap_AvailableForSaleSecuritiesDebtMaturitiesWithinOneYearAmortizedCost    
Due after one year through three years 1,089,610,000us-gaap_AvailableForSaleSecuritiesDebtMaturitiesAfterOneThroughFiveYearsAmortizedCost   1,089,610,000us-gaap_AvailableForSaleSecuritiesDebtMaturitiesAfterOneThroughFiveYearsAmortizedCost    
Marketable Securities, Amortized Cost 1,715,518,000us-gaap_AvailableForSaleSecuritiesAmortizedCost   1,715,518,000us-gaap_AvailableForSaleSecuritiesAmortizedCost   2,517,570,000us-gaap_AvailableForSaleSecuritiesAmortizedCost
Fair Value          
Due within one year 626,235,000us-gaap_AvailableForSaleSecuritiesDebtMaturitiesWithinOneYearFairValue   626,235,000us-gaap_AvailableForSaleSecuritiesDebtMaturitiesWithinOneYearFairValue    
Due after one year through three years 1,091,658,000us-gaap_AvailableForSaleSecuritiesDebtMaturitiesAfterOneThroughFiveYearsFairValue   1,091,658,000us-gaap_AvailableForSaleSecuritiesDebtMaturitiesAfterOneThroughFiveYearsFairValue    
Marketable Securities, Fair Value 1,717,893,000us-gaap_AvailableForSaleSecurities   1,717,893,000us-gaap_AvailableForSaleSecurities   2,521,776,000us-gaap_AvailableForSaleSecurities
Available-for-sale Securities, Gross Realized Gains $ 200,000us-gaap_AvailableForSaleSecuritiesGrossRealizedGains $ 300,000us-gaap_AvailableForSaleSecuritiesGrossRealizedGains $ 2,300,000us-gaap_AvailableForSaleSecuritiesGrossRealizedGains $ 1,800,000us-gaap_AvailableForSaleSecuritiesGrossRealizedGains