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Cash, Cash Equivalents and Short-Term Investments (Details 2)
$ in Thousands
Jun. 01, 2018
USD ($)
Amortized cost of short-term fixed Income Securities  
Due within one year, Amortized Cost $ 1,602,117
Due between one and two years, Amortized Cost 799,230
Due between two and three years, Amortized Cost 762,818
Due after three years, Amortized Cost 218,103
Total, Amortized Cost 3,382,268
Estimated Fair Value of Short-term fixed Income Securities  
Due within one year, Estimated Fair value 1,594,991
Due between one and two years, Estimated Fair value 789,530
Due between two and three years, Estimated Fair value 748,883
Due after three years, Estimated Fair value 212,674
Total, Estimated Fair value $ 3,346,078