Change in Accounting Estimate for Self-Insured Claims - Effect of Increase in Cost of Insurance and Claims (Detail) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 28, 2025	Jun. 29, 2024	Jun. 28, 2025	Jun. 29, 2024
Change in Accounting Estimate [Line Items]
Operating income	$ 56,280	$ 68,059	$ 95,699	$ 128,020
Net income	$ 41,893	$ 52,624	$ 71,699	$ 99,720
Basic earnings per share	$ 1.2	$ 1.48	$ 2.05	$ 2.79
Diluted earnings per share	$ 1.2	$ 1.48	$ 2.05	$ 2.79
Development of Prior Year Self Insured Claims Estimates
Change in Accounting Estimate [Line Items]
Operating income	$ 2,289	$ 989	$ 13,641	$ 2,116
Net income	$ 1,726	$ 747	$ 10,272	$ 1,606
Basic earnings per share	$ 0.05	$ 0.02	$ 0.29	$ 0.04
Diluted earnings per share	$ 0.05	$ 0.02	$ 0.29	$ 0.04