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Income Taxes - Reconciliation of the Beginning and Ending Amount of Unrecognized Tax Benefits (Details) - USD ($)
$ in Thousands
3 Months Ended 12 Months Ended
Dec. 29, 2018
Dec. 29, 2018
Dec. 30, 2017
Income Tax Disclosure [Abstract]      
Unrecognized tax benefits   $ 7,660 $ 8,617
Additions for tax positions taken in the current year   2,929 370
Additions for tax positions related to the pre-acquisition periods of acquired subsidiaries   9,394  
Decreases due to a lapse in the statute of limitations $ (1,500) (1,257)  
Other   (467) (1,327)
Unrecognized tax benefits $ 18,259 $ 18,259 $ 7,660