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Other Assets, Long-Term Other Assets, Long-Term (Details) - USD ($)
$ in Thousands
Mar. 30, 2019
Dec. 29, 2018
Other Assets, Longterm [Abstract]    
Lessee ROU assets $ 20,032 $ 0
Prepaid deposits 2,992 2,881
Long term investments 1,200 1,200
Restricted cash 149 151
Other non-current assets $ 24,373 $ 4,232