Goodwill and Intangibles, Finite-Lived Intangible Assets by Major Class and Acquisitions (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 27, 2015	Dec. 28, 2014	Dec. 29, 2013
Summary of Other Intangible Assets [Abstract]
Acquired product rights	$ 789,781	$ 789,781
Licensed rights of entertainment properties	256,555	256,555
Accumulated amortization	(841,267)	(797,546)
Amortizable intangible assets	205,069	248,790
Product rights with indefinite lives	75,738	75,738
Total other intangibles, net	280,807	324,528
Impairment of Intangible Assets, Finite-lived	0	$ 0	$ 19,736
Goodwill Related to Backflip	119,111
Intangible Assets, Future Amortization Expense By Year [Abstract]
2016	35,000
2017	29,000
2018	21,000
2019	40,000
2020	$ 40,000