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Common Stock and Stock-Based Compensation - Summary of Vesting Activities of Shares Issued Under Investment Share Program and Restricted Stock Awards (Detail)
6 Months Ended
Jun. 26, 2021
$ / shares
shares
Disclosure Of Compensation Related Costs Sharebased Payments [Abstract]  
Non-vested at beginning of period | shares 114,316
Granted | shares 17,632
Vested | shares (41,923)
Forfeited | shares (445)
Non-vested at end of period | shares 89,580
Non-vested at beginning of period | $ / shares $ 263.47
Granted | $ / shares 880.81
Vested | $ / shares 227.42
Forfeited | $ / shares 291.63
Non-vested at end of period | $ / shares $ 402.53