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Goodwill and Acquired Intangibles (Details 3) - USD ($)
$ in Thousands
Dec. 28, 2019
Dec. 29, 2018
Estimated amortization expense    
2020 $ 49,419  
2021 44,758  
2022 26,453  
2023 13,967  
2024 12,618  
Thereafter 5,660  
Acquired intangibles, net $ 152,875 $ 153,957