Consolidated Statements of Operations - USD ($) $ in Thousands	12 Months Ended
	Dec. 27, 2020	Dec. 29, 2019	Dec. 30, 2018
Income Statement [Abstract]
Net revenues	$ 5,465,443	$ 4,720,227	$ 4,579,646
Costs and expenses:
Cost of sales	1,718,888	1,807,849	1,850,678
Program cost amortization	387,056	85,585	43,906
Royalties	569,981	414,549	351,660
Product development	259,522	262,156	246,165
Advertising	412,730	413,676	439,922
Amortization of intangible assets	144,746	47,259	28,703
Selling, distribution and administration	1,252,140	1,037,103	1,287,560
Acquisition and related costs	218,566	0	0
Total costs and expenses	4,963,629	4,068,177	4,248,594
Operating profit	501,814	652,050	331,052
Non-operating expense (income):
Interest expense	201,130	101,878	90,826
Interest income	(7,424)	(30,107)	(22,357)
Other income, net	(13,954)	(13,931)	(7,819)
Total non-operating expense, net	179,752	57,840	60,650
Earnings before income taxes	322,062	594,210	270,402
Income taxes	96,621	73,756	49,968
Net earnings	225,441	520,454	220,434
Net earnings attributable to noncontrolling interests	2,922	0	0
Net earnings attributable to Hasbro, Inc.	$ 222,519	$ 520,454	$ 220,434
Net earnings attributable to Hasbro, Inc. per common share:
Basic (in dollars per share)	$ 1.62	$ 4.07	$ 1.75
Diluted (in dollars per share)	1.62	4.05	1.74
Cash dividends declared (in dollars per share)	$ 2.72	$ 2.72	$ 2.52