Business Segment Information - Net Sales (Detail) - USD ($) $ in Thousands	3 Months Ended								12 Months Ended
	Jan. 02, 2016	Jan. 03, 2015	Sep. 27, 2014	Jun. 28, 2014	Mar. 29, 2014	Sep. 28, 2013	Jun. 29, 2013	Mar. 30, 2013	Jan. 02, 2016	Jan. 03, 2015	Dec. 28, 2013
Net sales:
Net sales	$ 1,409,557	$ 1,522,596	$ 1,591,038	$ 1,522,033	$ 1,208,921	$ 1,400,728	$ 1,342,052	$ 1,059,370	$ 5,731,549	$ 5,324,746	$ 4,627,802
Innerwear [Member]
Net sales:
Net sales									2,649,399	2,707,474	2,444,935
Outerwear [Member]
Net sales:
Net sales									1,561,201	1,410,036	1,306,936
Direct to Consumer [Member]
Net sales:
Net sales									388,312	409,028	380,079
International [Member]
Net sales:
Net sales									$ 1,132,637	$ 798,208	$ 495,852