Consolidated Statements of Comprehensive Earnings - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Oct. 01, 2017	Sep. 25, 2016	Oct. 01, 2017	Sep. 25, 2016
Consolidated Statements of Comprehensive Earnings [Abstract]
Net earnings	$ 265,583	$ 256,162	$ 401,905	$ 352,552
Other comprehensive earnings (loss):
Foreign currency translation adjustments	13,142	(1,483)	41,954	18,482
Net losses on cash flow hedging activities, net of tax	(26,532)	(12,960)	(83,729)	(37,004)
Unrealized holding (losses) gains on available-for-sale securities, net of tax	(784)	(390)	(555)	963
Reclassifications to earnings, net of tax:
Net losses (gains) on cash flow hedging activities	4,547	(16,028)	(2,237)	(43,952)
Unrecognized pension and postretirement amounts	1,448	1,173	4,345	3,523
Total other comprehensive earnings loss, net of tax	(8,179)	(29,688)	(40,222)	(57,988)
Comprehensive earnings	257,404	226,474	361,683	294,564
Comprehensive loss attributable to noncontrolling interests	0	(1,636)	0	(6,103)
Comprehensive earnings attributable to Hasbro, Inc.	$ 257,404	$ 228,110	$ 361,683	$ 300,667