Components of Income Tax Expense (Benefit) (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 29, 2018	Dec. 30, 2017	Dec. 31, 2016
Income Tax Disclosure [Abstract]
Current Taxes: Federal	$ 11,642	$ 53,076	$ 86,235
Current Taxes: State	6,702	7,403	13,983
Current Taxes: Total	18,344	60,479	100,218
Deferred Taxes: Federal	21,762	(59,385)	(11,656)
Deferred Taxes: State	(105)	(1,921)	(2,801)
Deferred Income Taxes, Total	21,657	(61,306)	(14,457)
Income tax expense (benefit)	$ 40,001	$ (827)	$ 85,761