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Income Taxes (Details 4) - USD ($)
$ in Thousands
12 Months Ended
Jan. 02, 2021
Dec. 28, 2019
Dec. 29, 2018
Reconciliation of Unrecognized Tax Benefits [Roll Forward]      
Unrecognized tax benefit, beginning balance $ 8,051 $ 6,113 $ 4,542
Increases from positions taken during prior periods 656 1,121 372
Increases from positions taken during current period 459 817 2,036
Current year acquisitions 3,170    
Settled positions (947)    
Lapse of statute of limitations 0 0 (837)
Unrecognized tax benefit, ending balance $ 11,389 $ 8,051 $ 6,113