Earnings Per Share (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 28, 2015	Jun. 29, 2014	Jun. 28, 2015	Jun. 29, 2014
Earnings Per Share (Thousands of Dollars and Shares Except Per Share Data) [Abstract]
Net Earnings Attributable to Hasbro, Inc.	$ 41,809	$ 33,475	$ 68,476	$ 65,562
Basic [Abstract]
Adjusted net earnings (basic) (in dollars)	$ 41,809	$ 33,475	$ 68,476	$ 65,562
Average shares outstanding (in shares)	125,093	129,381	124,973	130,306
Equivalent shares (basic) (in shares)	125,093	129,381	124,973	130,306
Net earnings attributable to Hasbro, Inc. per common share-basic (in dollars per share)	$ 0.33	$ 0.26	$ 0.55	$ 0.50
Diluted [Abstract]
Adjusted net earnings (Diluted) (in dollars)	$ 41,809	$ 33,475	$ 68,476	$ 65,562
Average shares outstanding (in shares)	125,093	129,381	124,973	130,306
Effect of dilutive securities:
Options and other share-based awards (in shares)	1,713	1,549	1,601	1,525
Equivalent shares (diluted) (in shares)	126,806	130,930	126,574	131,831
Net earnings attributable to Hasbro, Inc. per common share-diluted (in dollars per share)	$ 0.33	$ 0.26	$ 0.54	$ 0.50
Options to acquire shares totaling excluded as antidilutive	0	674	391	675