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Income Taxes (Unrecognized Tax Benefits) (Details) - USD ($)
$ in Thousands
12 Months Ended
Dec. 28, 2019
Dec. 29, 2018
Reconciliation of Unrecognized Tax Benefits [Roll Forward]    
Balance at beginning of period $ 2,937 $ 2,524
Increases in positions taken in a prior period 14 262
Decreases in positions taken in a prior period (127) 0
New positions taken in a current period 562 529
Decrease due to settlements 0 (9)
Decrease due to lapse of statute of limitations (808) (369)
Balance at end of period $ 2,578 $ 2,937