Summary of Significant Accounting Policies - Narrative (Details) shares in Thousands		1 Months Ended		3 Months Ended		12 Months Ended
	Sep. 23, 2014 investment	Dec. 29, 2019 USD ($)	May 31, 2019 USD ($)	Dec. 29, 2019 USD ($)	Dec. 30, 2018 USD ($)	Dec. 29, 2019 USD ($) shares	Dec. 30, 2018 USD ($) shares	Dec. 31, 2017 USD ($) shares	Mar. 31, 2019 USD ($)	Oct. 31, 2009
Property, Plant and Equipment [Line Items]
Equity method investment, ownership percentage	40.00%									50.00%
Non-cash impairment charge				$ (86,253,000)
Asset Impairment Charges [Abstract]
Impairment during the period					$ (86,253,000)	$ 0	$ (86,253,000)	$ 0
Impairment of intangible assets, finite-lived				0	$ (31,303,000)	0	(31,303,000)	0
Administrative expense				11,400,000
Selling, distribution and administration						1,037,103,000	1,287,560,000	1,124,793,000
Operating lease right-of-use asset, net		$ 126,680,000		126,680,000		126,680,000			$ 121,230,000
Lease liabilities		144,055,000		$ 144,055,000		144,055,000			$ 139,520,000
Settlements paid		$ 185,000	$ 110,777,000			110,962,000	$ 0	$ 0
Other (income) expense, unrealized gain (loss)						$ 34,100,000
Antidilutive securities excluded from computation of earnings (in shares) | shares						928	1,077	499
Expected timing of satisfaction						The Company records revenues from in-application purchases based on the usage patterns of the players. For the majority of the Company’s digital games, players use their currencies within 1 month to 5 months of purchase, and therefore revenues are recognized based on the timing of the expected usage.
Shipping and handling
Asset Impairment Charges [Abstract]
Selling, distribution and administration						$ 218,742,000	$ 206,307,000	$ 190,999,000
Minimum
Property, Plant and Equipment [Line Items]
Equity method investment, ownership percentage										20.00%
Asset Impairment Charges [Abstract]
Finite-lived intangible asset, useful life						2 years
Maximum
Property, Plant and Equipment [Line Items]
Equity method investment, ownership percentage										50.00%
Asset Impairment Charges [Abstract]
Finite-lived intangible asset, useful life						25 years
Land and improvements | Minimum
Property, Plant and Equipment [Line Items]
Property, plant and equipment, useful life						15 years
Land and improvements | Maximum
Property, Plant and Equipment [Line Items]
Property, plant and equipment, useful life						19 years
Buildings and improvements | Minimum
Property, Plant and Equipment [Line Items]
Property, plant and equipment, useful life						15 years
Buildings and improvements | Maximum
Property, Plant and Equipment [Line Items]
Property, plant and equipment, useful life						25 years
Machinery and equipment | Minimum
Property, Plant and Equipment [Line Items]
Property, plant and equipment, useful life						3 years
Machinery and equipment | Maximum
Property, Plant and Equipment [Line Items]
Property, plant and equipment, useful life						12 years
Tools, dies and molds | Maximum
Property, Plant and Equipment [Line Items]
Property, plant and equipment, useful life						3 years
Joint Venture
Property, Plant and Equipment [Line Items]
Number of significant equity method investments	1					1
Equity method investment, ownership percentage		40.00%		40.00%		40.00%
Percentage of revenues from sales of finished products
Asset Impairment Charges [Abstract]
Percentage of revenues from sales of finished products						91.00%	92.00%	94.00%
Foreign exchange contract | Not designated as hedging instrument | Other Operating Income (Expense) | eOne Acquisition
Asset Impairment Charges [Abstract]
Other (income) expense, realized gain (loss)						$ 80,000,000