XML 63 R46.htm IDEA: XBRL DOCUMENT v3.19.1
Cash and Investments - Fair Value of Cash Equivalents and Investments by Contractual Maturity (Details) - USD ($)
$ in Thousands
Mar. 29, 2019
Dec. 28, 2018
Investments, Debt and Equity Securities [Abstract]    
Maturing in one year or less $ 784,432 $ 674,455
Maturing after one year through five years 207,928 153,687
Total $ 992,360 $ 828,142