Consolidated Statements of Operations (Unaudited) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2019	Apr. 01, 2018
Consolidated Statements of Operations (Unaudited) [Abstract]
Net revenues, external	$ 732,510	$ 716,341
Costs and expenses
Cost of sales	259,987	255,187
Royalties	59,888	69,652
Product development	56,260	57,384
Advertising	76,604	68,016
Amortization of intangibles	11,816	6,478
Program production cost amortization	6,575	12,034
Selling, distribution and administration	225,253	328,009
Total costs and expenses	696,383	796,760
Operating Profit (loss)	36,127	(80,419)
Non-operating (income) expense
Interest Expense	22,314	22,809
Interest income	(7,682)	(6,248)
Other income, net	(8,100)	(8,592)
Total non-operating expense, net	6,532	7,969
Earnings (loss) before income taxes	29,595	(88,388)
Income tax expense	2,868	24,104
Net earnings (loss)	$ 26,727	$ (112,492)
Net earnings (loss) per common share:
Basic (in dollars per share)	$ 0.21	$ (0.9)
Diluted (in dollars per share)	0.21	(0.9)
Cash dividends declared per common share (in dollars per share)	$ 0.68	$ 0.63