CONSOLIDATED STATEMENTS OF OPERATIONS - USD ($) $ in Thousands	3 Months Ended									12 Months Ended
	Dec. 31, 2016	Oct. 01, 2016	Jul. 02, 2016	Apr. 02, 2016	Jan. 02, 2016	Oct. 03, 2015	Jul. 04, 2015	Apr. 04, 2015	Mar. 29, 2014	Dec. 31, 2016	Jan. 02, 2016	Jan. 03, 2015
Net sales	$ 934,203	$ 901,425	$ 639,471	$ 724,085	$ 866,544	$ 849,806	$ 612,765	$ 684,764		$ 3,199,184	$ 3,013,879	$ 2,893,868
Cost of goods sold										1,820,035	1,755,855	1,709,428
Gross profit	410,492	375,546	282,182	310,929	363,538	347,539	262,895	284,052		1,379,149	1,258,024	1,184,440
Selling, general, and administrative expenses	282,624	255,322	228,464	228,996	258,737	230,017	209,296	211,183		995,406	909,233	890,251
Royalty income	(11,545)	(10,670)	(9,525)	(11,075)	(11,378)	(12,699)	(8,353)	(11,636)		(42,815)	(44,066)	(39,156)
Operating income	139,413	130,894	63,243	93,008	116,179	130,221	61,952	84,505		426,558	392,857	333,345
Interest expense										27,044	27,031	27,653
Interest income										(563)	(500)	(403)
Other expense (income), net										4,007	(1,862)	3,189
Income before income taxes										396,070	368,188	302,906
Provision for income taxes										137,964	130,366	108,236
Net income	$ 87,117	$ 80,811	$ 36,198	$ 53,980	$ 72,599	$ 79,326	$ 36,105	$ 49,792		$ 258,106	$ 237,822	$ 194,670
Basic net income per common share	$ 1.77	$ 1.62	$ 0.72	$ 1.05	$ 1.40	$ 1.52	$ 0.69	$ 0.94		$ 5.13	$ 4.55	$ 3.65
Diluted net income per common share	1.76	$ 1.60	$ 0.71	$ 1.04	$ 1.39	1.51	0.68	$ 0.94		5.08	4.50	3.62
Dividend declared per common share	$ 0.33					$ 0.16	$ 0.16		$ 0.22	$ 1.32	$ 0.88	$ 0.76