SEGMENT INFORMATION Net Sales (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended								12 Months Ended
	Jan. 03, 2015	Sep. 27, 2014	Jun. 28, 2014	Mar. 29, 2014	Dec. 28, 2013	Sep. 28, 2013	Jun. 29, 2013	Mar. 30, 2013	Jan. 03, 2015	Dec. 28, 2013	Dec. 29, 2012
Revenue from External Customer [Line Items]
Net sales	$ 869,224	$ 798,936	$ 574,065	$ 651,643	$ 769,655	$ 760,173	$ 517,874	$ 591,009	$ 2,893,868	$ 2,638,711	$ 2,381,734
Baby [Member]
Revenue from External Customer [Line Items]
Net sales									1,107,973	975,374	865,446
Playclothes [Member]
Revenue from External Customer [Line Items]
Net sales									1,146,797	1,074,581	989,371
Sleepwear [Member]
Revenue from External Customer [Line Items]
Net sales									381,574	366,289	340,715
Other Products [Member]
Revenue from External Customer [Line Items]
Net sales									$ 257,524	$ 222,467	$ 186,202