Consolidated Statements of Shareholder's Equity - USD ($) $ in Thousands	Total	Common Stock	Additional Paid-in Capital	Retained Earnings	Accumulated Other Comprehensive Loss	Treasury Stock	Total Shareholders' Equity
Balance at Dec. 31, 2017	$ 1,829,957	$ 104,847	$ 1,050,605	$ 4,260,222	$ (239,425)	$ (3,346,292)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net earnings (loss)	(52,193)			(52,193)			$ (52,193)
Issuance of shares for Saban purchase			198,853			81,544	280,397
Other comprehensive earnings (loss)	(34,148)				(34,148)		(34,148)
Stock-based compensation transactions			(9,130)			86	(9,044)
Purchases of common stock						(112,893)	(112,893)
Stock-based compensation expense			23,329			216	23,545
Dividends declared				(158,871)			(158,871)
Balance at Jul. 01, 2018	1,766,750	104,847	1,263,657	4,070,661	(295,076)	(3,377,339)	1,766,750
Balance at Apr. 01, 2018	1,571,359	104,847	1,053,368	4,090,637	(292,395)	(3,385,098)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net earnings (loss)	60,299			60,299
Issuance of shares for Saban purchase	280,397		198,853			81,544
Other comprehensive earnings (loss)	(2,681)				(2,681)
Stock-based compensation transactions	(1,501)		(1,602)			101
Purchases of common stock	(74,102)					(74,102)
Stock-based compensation expense	13,254		13,038			216
Dividends declared	(80,275)			(80,275)
Balance at Jul. 01, 2018	1,766,750	104,847	1,263,657	4,070,661	(295,076)	(3,377,339)	1,766,750
Balance at Dec. 30, 2018	1,754,486	104,847	1,275,059	4,184,374	(294,514)	(3,515,280)	1,754,486
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net earnings (loss)	40,160			40,160			40,160
Other comprehensive earnings (loss)	121,339				121,339		121,339
Stock-based compensation transactions			(177)			14,068	13,891
Purchases of common stock						(58,633)	(58,633)
Stock-based compensation expense			15,658			236	15,894
Dividends declared				(171,268)			(171,268)
Balance at Jun. 30, 2019	1,715,869	104,847	1,290,540	4,053,266	(173,175)	(3,559,609)	1,715,869
Balance at Mar. 31, 2019	1,654,531	104,847	1,269,230	4,125,686	(282,339)	(3,562,893)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net earnings (loss)	13,433			13,433
Other comprehensive earnings (loss)	109,164				109,164
Stock-based compensation transactions	23,436		10,937			12,499
Purchases of common stock	(9,451)					(9,451)
Stock-based compensation expense	10,609		10,373			236
Dividends declared	(85,853)			(85,853)
Balance at Jun. 30, 2019	$ 1,715,869	$ 104,847	$ 1,290,540	$ 4,053,266	$ (173,175)	$ (3,559,609)	$ 1,715,869