Revenue Recognition (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 30, 2018	Dec. 31, 2017
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Bad debt expense related to ToysRUs	$ 49,000	$ 18,000
Accounting Standards Update 2014-09 [Member]
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Deferred revenues recorded as liabilities	$ 50,759	$ 7,549
Percentage of Revenues from Sales of Finished Products [Member]
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Percentage of revenues from sales of finished products	92.00%	94.00%