The amount of annual installment payable under the minimum future royalty guarantees.

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Fair market value of joint venture option agreement included in other liabilities.

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The percentage of ownership of the Co-venturer in a co-venture transaction of common stock or equity participation in the investee accounted for under the equity method of accounting.

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Represents the exercise price of the option agreement with the co-venturer based on the fair market value of the investors ownership of the investee.

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Gain related to a reduction of a liability associated with investment in joint venture, including imputed interest, as a result of U.S. tax reform passed in December 2017.

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Net (gains) losses recorded in other expense related to change in value of joint venture option agreement.

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The number of annual royalty installments expected under the minimum annual royalty guarantee.

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Payments under a tax sharing agreement to a another party who the Company shares joint control of another entity with.

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Present value of remaining payments to be made to Discovery for certain tax benefits to be received by the Company.

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The percentage of ownership of common stock or equity participation in the investee accounted for under the equity method of accounting.

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Equity Method Investment (Details) $ in Thousands		1 Months Ended	12 Months Ended
Equity Method Investment (Details) $ in Thousands	Oct. 31, 2009 USD ($) Royalty_Installment_Payment	Oct. 31, 2009 USD ($)	Dec. 29, 2019 USD ($)	Dec. 30, 2018 USD ($)	Dec. 31, 2017 USD ($)	Sep. 23, 2014
Schedule of Equity Method Investments [Line Items]
Equity method investment, ownership percentage	50.00%	50.00%				40.00%
Payments to acquire interest in joint venture		$ 300,000
Percentage of fair market value of equity method investment			80.00%
Minimum royalty guarantee	$ 125,000	125,000
Number of annual installments for minimum royalty guarantee \| Royalty_Installment_Payment	5
Amount of annual installment for minimum royalty guarantee	$ 25,000	$ 25,000
Discovery communications, Inc.
Schedule of Equity Method Investments [Line Items]
Joint venture, ownership interest						60.00%
Net (gains) losses related to change in value of joint venture option agreement			$ 1,295	$ (540)	$ (4,790)
Gain from reduction of remaining present value of expected future payments, tax cuts and jobs act				19,911
Payments made to discovery under tax sharing agreement			4,760	7,087	6,785
Discovery communications, Inc. \| Other liabilities
Schedule of Equity Method Investments [Line Items]
Option agreement			22,145	23,440
Liability associated with investment in joint venture, including imputed interest			$ 22,755	25,289
Dicovery family channel
Schedule of Equity Method Investments [Line Items]
Equity method investment, ownership percentage			40.00%
Prepaid royalties			$ 26,941	41,041
Equity method investments			223,769	236,934
Dicovery family channel \| Other expense
Schedule of Equity Method Investments [Line Items]
Income (loss) from equity method investments			23,642	21,145	$ 23,270
Dicovery family channel \| Prepaid expenses and other current assets
Schedule of Equity Method Investments [Line Items]
Prepaid royalties			12,236	13,216
Dicovery family channel \| Other assets
Schedule of Equity Method Investments [Line Items]
Prepaid royalties			$ 14,705	$ 27,825