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Retirement Plan - Additional Information (Details) - USD ($)
Jun. 26, 2021
Dec. 26, 2020
Retirement Benefits [Abstract]    
Distributed shares subject to put option, fair value $ 551,770,000 $ 444,801,000
ESOP, shares cost 3,308,885,000 3,039,748,000
Common stock related to ESOP 3,860,655,000 3,484,549,000
ESOP shares, fair value $ 10,357,545,000 $ 9,976,034,000