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Other Non-Current Assets (Details) - USD ($)
$ in Thousands
Sep. 26, 2020
Dec. 28, 2019
Other Assets, Longterm [Abstract]    
Lessee ROU assets $ 26,825 $ 19,137
Strategic investments 7,950 6,475
Prepaid deposits 3,616 3,022
Restricted cash, non-current(1) 154 157
Other non-current assets $ 38,545 $ 28,791