Consolidated Statements of Comprehensive Earnings - USD ($) $ in Thousands	12 Months Ended
	Dec. 30, 2018	Dec. 31, 2017	Dec. 25, 2016
Consolidated Statements of Comprehensive Earnings [Abstract]
Net earnings	$ 220,434	$ 396,607	$ 533,151
Other comprehensive earnings (loss):
Foreign currency translation adjustments	(55,524)	32,017	(5,033)
Unrealized holding (losses) gains on available-for-sale securities, net of tax	(2,000)	(390)	166
Net gains (losses) on cash flow hedging activities, net of tax	36,107	(90,302)	25,748
Changes in unrecognized pension and postretirement amounts, net of tax	(23,763)	1,555	(20,829)
Reclassifications to earnings, net of tax:
Net losses (gains) on cash flow hedging activities	1,929	6,390	(53,980)
Amortization of unrecognized pension and postretirement amounts	9,665	5,875	5,359
Other comprehensive loss	(33,586)	(44,855)	(48,569)
Total comprehensive earnings	186,848	351,752	484,582
Total comprehensive loss attributable to noncontrolling interests	0	0	(18,229)
Total comprehensive earnings attributable to Hasbro, Inc.	$ 186,848	$ 351,752	$ 502,811