Earnings (Loss) Per Share (Details) (USD $) In Thousands, except Per Share data, unless otherwise specified	3 Months Ended
	Mar. 30, 2014	Mar. 31, 2013
Earnings (Loss) Per Share (Thousands of Dollars and Shares Except Per Share Data) [Abstract]
Net earnings (loss) attributable to Hasbro, Inc.	$ 32,087	$ (6,671)
Basic [Abstract]
Adjusted net earnings (loss) (basic) (in dollars)	32,087	(6,671)
Average shares outstanding (in shares)	131,232	129,340
Equivalent shares (basic) (in shares)	131,232	129,340
Net earnings (loss) attributable to Hasbro, Inc. per common share-basic (in dollars per share)	$ 0.24	$ (0.05)
Diluted [Abstract]
Adjusted net earnings (loss) (Diluted) (in dollars)	$ 32,087	$ (6,671)
Average shares outstanding (in shares)	131,232	129,340
Effect of dilutive securities:
Options and other share-based awards (in shares)	1,501	0
Equivalent shares (diluted) (in shares)	132,733	129,340
Net earnings (loss) attributable to Hasbro, Inc. per common share-diluted (in dollars per share)	$ 0.24	$ (0.05)
Options to acquire shares totaling excluded as antidilutive	676	8,731
Shares that would have been included in the calculation of diluted shares had the Company not had a net loss during the period.		7,559
Shares that would have been included in the diluted earnings per share calculation had the Company not had a net loss during the period.		1,524
Equivalents shares had the Company not had a net loss during the period		130,864