Summary of Significant Accounting Policies (Details) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended								12 Months Ended
	Dec. 27, 2015 USD ($) $ / shares	Sep. 27, 2015 USD ($) $ / shares	Jun. 28, 2015 USD ($) $ / shares	Mar. 29, 2015 USD ($) $ / shares	Dec. 28, 2014 USD ($) $ / shares	Sep. 28, 2014 USD ($) $ / shares	Jun. 29, 2014 USD ($) $ / shares	Mar. 30, 2014 USD ($) $ / shares	Dec. 27, 2015 USD ($) Position $ / shares shares	Dec. 28, 2014 USD ($) $ / shares shares	Dec. 29, 2013 USD ($) $ / shares shares	Sep. 23, 2014	Oct. 31, 2009
Long-lived assets [Line Items]
Equity method ownership percentage												40.00%	50.00%
Maximum period for an investment to be classified as highly liquid									three months
Finished goods percentage of inventory	98.00%				94.00%				98.00%	94.00%
Percentage of other intangibles being amortized in proportion to projected sales									7.00%
Shipping and handling expense									$ 159,854	$ 157,326	$ 155,316
2015 expected pension plan contribution									$ 3,600
Options excluded from calculation of diluted earnings per share (in shares) | shares									0	674	760
Earnings per share, basic [Abstract]
Net earnings attributable to Hasbro, Inc.	$ 175,763	$ 207,599	$ 41,809	$ 26,667	$ 169,911	$ 180,457	$ 33,475	$ 32,087	$ 451,838	$ 415,930	$ 286,198
Average shares outstanding (in shares) | shares									125,006	128,411	130,186
Net earnings per share, basic (in dollars per share) | $ / shares	$ 1.41	$ 1.66	$ 0.33	$ 0.21	$ 1.35	$ 1.42	$ 0.26	$ 0.24	$ 3.61	$ 3.24	$ 2.20
Earnings per share, diluted [Abstract]
Net earnings attributable to Hasbro, Inc.	$ 175,763	$ 207,599	$ 41,809	$ 26,667	$ 169,911	$ 180,457	$ 33,475	$ 32,087	$ 451,838	$ 415,930	$ 286,198
Average shares outstanding (in shares) | shares									125,006	128,411	130,186
Effect of dilutive securities: [Abstract]
Options and other share-based awards (in shares) | shares									1,682	1,475	1,602
Equivalent shares (in shares) | shares									126,688	129,886	131,788
Net earnings per share, diluted (in dollars per share) | $ / shares	$ 1.39	$ 1.64	$ 0.33	$ 0.21	$ 1.34	$ 1.40	$ 0.26	$ 0.24	$ 3.57	$ 3.20	$ 2.17
Minimum [Member]
Long-lived assets [Line Items]
Finite-lived intangible assets, useful life									4 years
Maximum [Member]
Long-lived assets [Line Items]
Finite-lived intangible assets, useful life									20 years
Joint Venture [Member]
Long-lived assets [Line Items]
Equity method ownership percentage	40.00%								40.00%
Number of significant equity method investments | Position									1
Joint Venture [Member] | Minimum [Member]
Long-lived assets [Line Items]
Equity method ownership percentage	20.00%								20.00%
Joint Venture [Member] | Maximum [Member]
Long-lived assets [Line Items]
Equity method ownership percentage	50.00%								50.00%
Restatement Adjustment [Member]
New Accounting Pronouncement, Early Adoption [Line Items]
Reclassification of deferred tax liability from current to noncurrent					$ 3,250					$ 3,250
Reclassification of deferred tax asset from current to noncurrent					75,595					75,595
Reclassification of deferred debt expense from other assets to long-term debt					$ 14,042					$ 14,042
Land and Improvements [Member] | Minimum [Member]
Long-lived assets [Line Items]
Depreciation period									15 years
Land and Improvements [Member] | Maximum [Member]
Long-lived assets [Line Items]
Depreciation period									19 years
Buildings and Improvements [Member] | Minimum [Member]
Long-lived assets [Line Items]
Depreciation period									15 years
Buildings and Improvements [Member] | Maximum [Member]
Long-lived assets [Line Items]
Depreciation period									25 years
Machinery and Equipment [Member] | Minimum [Member]
Long-lived assets [Line Items]
Depreciation period									3 years
Machinery and Equipment [Member] | Maximum [Member]
Long-lived assets [Line Items]
Depreciation period									12 years
Tools, Dies and Molds [Member] | Maximum [Member]
Long-lived assets [Line Items]
Depreciation period									3 years