Stock-Based Compensation - Reconciliation of Outstanding Stock Options (Details) $ / shares in Units, $ in Thousands	12 Months Ended
	Dec. 26, 2020 USD ($) $ / shares shares
Shares Under Option
Outstanding (in shares) | shares	600,465
Granted (in shares) | shares	297,954
Exercised (in shares) | shares	(209,093)
Forfeited (in shares) | shares	(22,377)
Outstanding (in shares) | shares	666,949
Exercisable (in shares) | shares	296,409
Weighted Average Price
Outstanding (in dollars per share) | $ / shares	$ 131.32
Granted (in dollars per share) | $ / shares	152.86
Exercised (in dollars per share) | $ / shares	104.18
Forfeited (in dollars per share) | $ / shares	173.95
Outstanding (in dollars per share) | $ / shares	148.01
Exercisable (in dollars per share) | $ / shares	$ 133.00
Weighted Average Remaining Contract Life and Aggregate Intrinsic Value
Outstanding (Years)	5 years 1 month 6 days
Outstanding | $	$ 69,126
Exercisable (Years)	3 years 8 months 12 days
Exercisable | $	$ 35,172