Segment Reporting, Revenue by Products (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 27, 2015	Sep. 28, 2014	Sep. 27, 2015	Sep. 28, 2014
Revenue from External Customer [Line Items]
Net revenue	$ 1,470,997	$ 1,469,899	$ 2,982,155	$ 2,978,614
Boys [Member]
Revenue from External Customer [Line Items]
Net revenue	593,094	478,509	1,206,118	1,062,082
Games [Member]
Revenue from External Customer [Line Items]
Net revenue	363,470	395,221	810,748	841,449
Girls [Member]
Revenue from External Customer [Line Items]
Net revenue	294,785	407,718	539,401	710,235
Preschool [Member]
Revenue from External Customer [Line Items]
Net revenue	$ 219,648	$ 188,451	$ 425,888	$ 364,848