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

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

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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. 27, 2020 USD ($)	Dec. 29, 2019 USD ($)	Dec. 30, 2018 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			$ 1,543	$ 1,295	$ (540)
Payments made to discovery under tax sharing agreement			4,692	4,760	7,087
Discovery communications, Inc. \| Other liabilities
Schedule of Equity Method Investments [Line Items]
Option agreement			20,602	22,145
Liability associated with investment in joint venture, including imputed interest			$ 19,880	22,755
Dicovery family channel
Schedule of Equity Method Investments [Line Items]
Equity method investment, ownership percentage			40.00%
Prepaid royalties			$ 15,063	26,941
Equity method investments			216,567	223,769
Dicovery family channel \| Other expense
Schedule of Equity Method Investments [Line Items]
Income (loss) from equity method investments			$ 21,841	23,642	$ 21,145
Dicovery family channel \| Prepaid expenses and other current assets
Schedule of Equity Method Investments [Line Items]
Prepaid royalties				12,236
Dicovery family channel \| Other assets
Schedule of Equity Method Investments [Line Items]
Prepaid royalties				$ 14,705