Total Income Taxes (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 26, 2020	Dec. 28, 2019	Dec. 29, 2018
Income Tax Disclosure [Abstract]
Earnings	$ 1,064,817	$ 780,591	$ 539,801
Other comprehensive earnings (losses)	40,682	46,723	(3,440)
Income tax expense	$ 1,105,499	$ 827,314	$ 536,361