CONSOLIDATED STATEMENTS OF INCOME - USD ($) $ in Thousands	12 Months Ended
	Jan. 01, 2017	Jan. 03, 2016	Dec. 28, 2014
REVENUES:
Revenue	$ 2,472,628	$ 2,216,528	$ 1,993,833
COST OF SALES:
Cost of sales	1,704,937	1,533,397	1,399,067
OPERATING MARGIN	767,691	683,131	594,766
GENERAL AND ADMINISTRATIVE	313,649	277,692	249,405
INCOME FROM OPERATIONS	454,042	405,439	345,361
INTEREST INCOME	685	313	143
INTEREST EXPENSE	(110,069)	(99,537)	(86,881)
INCOME BEFORE PROVISION FOR INCOME TAXES	344,658	306,215	258,623
PROVISION FOR INCOME TAXES	129,980	113,426	96,036
NET INCOME	$ 214,678	$ 192,789	$ 162,587
EARNINGS PER SHARE:
Common Stock - basic	$ 4.41	$ 3.58	$ 2.96
Common Stock - diluted	4.30	3.47	2.86
Dividends declared per share	$ 1.52	$ 1.24	$ 1.00
Domestic Stores [Member] | Domestic Company Owned Stores [Member]
REVENUES:
Revenue	$ 439,024	$ 396,916	$ 348,497
COST OF SALES:
Cost of sales	331,860	299,294	267,385
Domestic Stores [Member] | Domestic Franchise [Member]
REVENUES:
Revenue	312,260	272,808	230,192
Supply Chain [Member]
REVENUES:
Revenue	1,544,345	1,383,161	1,262,523
COST OF SALES:
Cost of sales	1,373,077	1,234,103	1,131,682
International Franchise [Member]
REVENUES:
Revenue	$ 176,999	$ 163,643	$ 152,621