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Schedule of Future Minimum Obligations Under Lease Commitments (Parenthetical) (Detail) (USD $) In Millions, unless otherwise specified	Dec. 31, 2013
Commitments and Contingencies Disclosure [Line Items]
Imputed interest for capitalized leases	$ 0.4

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- Details

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Namespace Prefix:	mat_
Data Type:	xbrli:stringItemType
Balance Type:	na
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- Definition

Amount necessary to reduce net minimum lease payments to present value for capital leases.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 840

-SubTopic 30

-Section 50

-Paragraph 1

-Subparagraph (b)

-URI http://asc.fasb.org/extlink&oid=6455398&loc=d3e45280-112737

+ Details

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