Consolidated Statements of Operations - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2019	Jul. 01, 2018	Jun. 30, 2019	Jul. 01, 2018
Income Statement [Abstract]
Net revenues	$ 984,537	$ 904,458	$ 1,717,047	$ 1,620,799
Costs and expenses:
Cost of sales	343,694	338,306	603,681	593,493
Royalties	71,061	66,045	130,949	135,697
Product development	65,632	59,859	121,892	117,243
Advertising	92,799	87,601	169,403	155,617
Amortization of intangibles	11,815	4,554	23,631	11,032
Program production cost amortization	23,502	7,297	30,077	19,331
Selling, distribution and administration	247,701	253,208	472,954	581,217
Total costs and expenses	856,204	816,870	1,552,587	1,613,630
Operating profit	128,333	87,588	164,460	7,169
Non-operating (income) expense:
Interest expense	22,018	22,803	44,332	45,612
Interest income	(5,996)	(6,308)	(13,678)	(12,556)
Other expense (income), net	106,203	2,969	98,103	(5,623)
Total non-operating expense, net	122,225	19,464	128,757	27,433
Earnings (loss) before income taxes	6,108	68,124	35,703	(20,264)
Income tax expense (benefit)	(7,325)	7,825	(4,457)	31,929
Net earnings (loss)	$ 13,433	$ 60,299	$ 40,160	$ (52,193)
Net earnings (loss) per common share:
Basic (in dollars per share)	$ 0.11	$ 0.48	$ 0.32	$ (0.42)
Diluted (in dollars per share)	0.11	0.48	0.32	(0.42)
Cash dividends declared per common share (in dollars per share)	$ 0.68	$ 0.63	$ 1.36	$ 1.26