Periodic Financial Data (Detail) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended						4 Months Ended		12 Months Ended
	Sep. 11, 2016	Jun. 19, 2016	Mar. 27, 2016	Sep. 06, 2015	Jun. 14, 2015	Mar. 22, 2015	Jan. 01, 2017	Jan. 03, 2016	Jan. 01, 2017	Jan. 03, 2016	Dec. 28, 2014
Quarterly Financial Data [Abstract]
Total revenues	$ 566,677	$ 547,341	$ 539,175	$ 484,696	$ 488,622	$ 502,027	$ 819,435	$ 741,183	$ 2,472,628	$ 2,216,528	$ 1,993,833
Operating margin	173,903	171,838	167,216	141,954	152,672	157,066	254,734	231,439	767,691	683,131	594,766
Income before provision for income taxes	75,814	78,692	72,842	60,628	73,278	74,182	117,310	98,127	344,658	306,215	258,623
Net income	$ 47,232	$ 49,261	$ 45,451	$ 37,832	$ 45,909	$ 46,289	$ 72,734	$ 62,759	$ 214,678	$ 192,789	$ 162,587
Earnings per common share - basic	$ 0.98	$ 1.00	$ 0.91	$ 0.69	$ 0.84	$ 0.84	$ 1.52	$ 1.21	$ 4.41	$ 3.58	$ 2.96
Earnings per common share - diluted	0.96	0.98	0.89	0.67	0.81	0.81	1.48	1.18	4.30	3.47	2.86
Common stock dividends declared per share	$ 0.38	$ 0.38	$ 0.38	$ 0.31	$ 0.31	$ 0.31	$ 0.38	$ 0.31	$ 1.52	$ 1.24	$ 1.00