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Summary of Significant Accounting Policies - Narrative (Details) - USD ($)
$ in Thousands
3 Months Ended
Mar. 27, 2021
Dec. 26, 2020
Reclassification [Line Items]    
Capitalized stock issuance cost   $ 9,000
Stock issuance cost $ 14,757  
IPO    
Reclassification [Line Items]    
Stock issuance cost $ 6,000