Cash, Cash Equivalents and Short-Term Investments (Details 2) $ in Thousands	Nov. 29, 2019 USD ($)
Amortized cost and Estimated Fair Value of Short-term fixed Income Securities [Abstract]
Due within one year, Amortized Cost	$ 928,472
Due between one and two years, Amortized Cost	394,436
Due between two and three years, Amortized Cost	179,468
Due after three years, Amortized Cost	20,174
Total, Amortized Cost	1,522,550
Due within one year, Estimated Fair value	929,616
Due between one and two years, Estimated Fair value	395,917
Due between two and three years, Estimated Fair value	180,867
Due after three years, Estimated Fair value	20,355
Total, Estimated Fair Value	$ 1,526,755