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Schedule of Future Minimum Obligations Under Lease Commitments (Parenthetical) (Detail) (USD $) In Millions, unless otherwise specified | Dec. 31, 2014
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Commitments and Contingencies Disclosure [Line Items] |
Imputed interest for capitalized leases | $ 0.3 us-gaap_CapitalLeasesFutureMinimumPaymentsInterestIncludedInPayments

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- Details
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Namespace Prefix: | mat_
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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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