Segment Reporting, Revenue by Products (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Oct. 01, 2017	Sep. 25, 2016	Oct. 01, 2017	Sep. 25, 2016
Revenue from External Customer [Line Items]
Net revenue	$ 1,791,502	$ 1,679,757	$ 3,613,671	$ 3,389,882
Franchise Brands [Member]
Revenue from External Customer [Line Items]
Net revenue	827,282	773,415	1,803,744	1,642,057
Partner Brands [Member]
Revenue from External Customer [Line Items]
Net revenue	485,747	493,738	928,724	979,051
Hasbro Gaming [Member]
Revenue from External Customer [Line Items]
Net revenue	280,097	229,850	549,736	456,516
Gaming including Magic the Gathering and Monopoly [Member]
Revenue from External Customer [Line Items]
Net revenue	424,836	409,528	$ 951,386	868,373
Segment Reporting, Additional Information about Entity's Reportable Segments			Hasbro's total gaming category, including the Hasbro Gaming portfolio as reported above and all other gaming revenue, most notably MAGIC: THE GATHERING and MONOPOLY, which are included in the Franchise Brands portfolio, totaled $424,836 and $951,386 for the quarter and nine months ended October 1, 2017, respectively. For the quarter and nine months ended September 25, 2016, revenues were $409,528 and $868,373, respectively. Hasbro believes its gaming portfolio is a competitive differentiator and views it in its entirety.
Emerging Brands [Member]
Revenue from External Customer [Line Items]
Net revenue	$ 198,376	$ 182,754	$ 331,467	$ 312,258