Segment Reporting - Narrative (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 29, 2019	Sep. 30, 2018	Sep. 29, 2019	Sep. 30, 2018
Segment Reporting, Revenue Reconciling Item [Line Items]
Net revenues	$ 1,575,173	$ 1,569,686	$ 3,292,220	$ 3,190,485
Operating Income (Loss)	297,210	313,336	461,670	320,505
Gaming including Magic the Gathering and Monopoly
Segment Reporting, Revenue Reconciling Item [Line Items]
Net revenues	$ 449,393	447,844	$ 1,086,151	964,159
Wizards Of The Coast Digital Revenue
Segment Reporting, Revenue Reconciling Item [Line Items]
Net revenues		11,999		33,271
Wizards of the Coast Digital Operating Profit
Segment Reporting, Revenue Reconciling Item [Line Items]
Operating Income (Loss)		$ 3,455		$ 9,825