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Cash and Investments - Reconciliation of Cash, Cash Equivalents, and Restricted Cash (Details) - USD ($)
$ in Thousands
Apr. 02, 2021
Jan. 01, 2021
Apr. 03, 2020
Jan. 03, 2020
Cash and Cash Equivalents [Abstract]        
Cash and cash equivalents $ 370,209 $ 319,217    
Restricted cash equivalents included in other long-term assets 49,712 1,555    
Cash, cash equivalents, and restricted cash equivalents as reported in the accompanying Condensed Consolidated Statements of Cash Flows $ 419,921 $ 320,772 $ 358,976 $ 268,137