Components of Income Tax Expense (Detail) - USD ($) $ in Thousands	3 Months Ended	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2016	Jan. 02, 2016	Jan. 03, 2015
Income Tax Disclosure [Abstract]
Current Taxes: Federal		$ 86,235	$ 75,128	$ 72,780
Current Taxes: State		13,983	10,419	10,294
Current Taxes: Total		100,218	85,547	83,074
Deferred Taxes: Federal		(11,656)	16,236	7,691
Deferred Taxes: State		(2,801)	2,057	1,550
Deferred Income Taxes, Total	$ (900)	(14,457)	18,293	9,241
Income tax expense		$ 85,761	$ 103,840	$ 92,315