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Nature of Operations and Summary of Significant Accounting Policies - Product Warranty (Details) - USD ($)
$ in Thousands
12 Months Ended
Jan. 02, 2021
Dec. 28, 2019
Changes in the carrying amount of accrued warranty costs [Roll Forward]    
Balance at Beginning of Year $ 6,467 $ 5,726
Provision charged to expense 5,555 4,727
Usage (5,439) (4,255)
Acquisition 0 303
Currency translation 481 (34)
Balance at End of Year $ 7,064 $ 6,467