Revenue Recognition (Details) - USD ($) $ in Thousands	3 Months Ended
	Apr. 01, 2018	Apr. 02, 2017
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Bad Debt Expense Related To Toys R Us	$ 59,115
Accounting Standards Update 2014-09 [Member]
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Percentage of Revenues from Sales of Finished Products	90.00%	92.00%
Activities necessary to fulfill obligation to transfer products to customers included in selling, distribution and administration expense	$ 41,486	$ 36,609
Accounting Standards Update 2014-09 [Member] | Entertainment and Licensing [Member]
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Percentage of Revenues from Segment	9.00%	6.00%