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Nature of Operations and Summary of Significant Accounting Policies - Narrative (Details) - USD ($)
$ in Thousands
3 Months Ended
Apr. 03, 2021
Mar. 28, 2020
Jan. 02, 2021
Accounting Policies [Abstract]      
Bank guarantees, expiration period 12 months    
Revenue recognized $ 17,140 $ 19,708  
Revenue, remaining performance obligation, amount $ 16,990    
Banker's acceptance drafts, maturity period 6 months    
Banker's acceptance drafts $ 10,347   $ 9,445