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Stock-Based Compensation - Additional Information (Detail) - USD ($) $ / shares in Units, $ in Millions	3 Months Ended		6 Months Ended
	Jun. 26, 2021	Jun. 27, 2020	Jun. 26, 2021	Jun. 27, 2020
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Granted, Shares			52,001
Weighted-average grant-date fair value			$ 111.78
Compensation cost related to stock options	$ 0.3	$ 0.3	$ 0.6	$ 0.5
Employee Stock Purchase Plan [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Number of common stock shares purchased	31,462	10,735	31,462	10,735
Compensation cost	$ 0.7	$ 0.1	$ 0.7	$ 0.2
Performance-Based Restricted Stock Units [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Granted, Shares			17,714
Weighted-average grant-date fair value			$ 131.02
RSA and RSU [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Compensation cost related to restricted stock	1.3	$ 1.1	$ 3.1	$ 2.0
Restricted Stock and Restricted Stock Units Award [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Unrecognized compensation cost related to non-vested stock options	9.5		$ 9.5
Unrecognized compensation cost related to nonvested stock options, weighted-average period			2 years 4 months 24 days
Stock Options [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Unrecognized compensation cost related to non-vested stock options	$ 3.4		$ 3.4
Unrecognized compensation cost related to nonvested stock options, weighted-average period			3 years