Earnings Per Share (Details) (USD $) In Thousands, except Per Share data, unless otherwise specified	3 Months Ended		6 Months Ended
	Jun. 29, 2014	Jun. 30, 2013	Jun. 29, 2014	Jun. 30, 2013
Earnings Per Share (Thousands of Dollars and Shares Except Per Share Data) [Abstract]
Net Earnings Attributable to Hasbro, Inc.	$ 33,475	$ 36,480	$ 65,562	$ 29,809
Basic [Abstract]
Adjusted net earnings (basic) (in dollars)	33,475	36,480	65,562	29,809
Average shares outstanding (in shares)	129,381	130,323	130,306	129,831
Equivalent shares (basic) (in shares)	129,381	130,323	130,306	129,831
Net earnings attributable to Hasbro, Inc. per common share-basic (in dollars per share)	$ 0.26	$ 0.28	$ 0.50	$ 0.23
Diluted [Abstract]
Adjusted net earnings (Diluted) (in dollars)	$ 33,475	$ 36,480	$ 65,562	$ 29,809
Average shares outstanding (in shares)	129,381	130,323	130,306	129,831
Effect of dilutive securities:
Options and other share-based awards (in shares)	1,549	1,657	1,525	1,606
Equivalent shares (diluted) (in shares)	130,930	131,980	131,831	131,437
Net earnings attributable to Hasbro, Inc. per common share-diluted (in dollars per share)	$ 0.26	$ 0.28	$ 0.50	$ 0.23
Options to acquire shares totaling excluded as antidilutive	674	1,849	675	1,511