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Summary of Significant Accounting Policies - Intangible Assets (Details)
12 Months Ended
Dec. 26, 2020
Minimum  
Acquired Finite-Lived Intangible Assets [Line Items]  
Weighted Average Useful Life (in years) 1 year
Maximum  
Acquired Finite-Lived Intangible Assets [Line Items]  
Weighted Average Useful Life (in years) 10 years