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v2.4.1.9

Goodwill (Detail) (USD $) In Thousands, unless otherwise specified | 12 Months Ended
--- | ---
Dec. 31, 2014 | Dec. 31, 2013
Goodwill [Line Items] |  |
Goodwill, beginning balance | $ 1,083,239 us-gaap_Goodwill | $ 1,080,798 us-gaap_Goodwill
Acquisition | 320,330 us-gaap_GoodwillAcquiredDuringPeriod |
Currency exchange rate impact | (9,601)us-gaap_GoodwillTranslationAdjustments | 2,441 us-gaap_GoodwillTranslationAdjustments
Goodwill, ending balance | 1,393,968 us-gaap_Goodwill | 1,083,239 us-gaap_Goodwill
North America |  |
Goodwill [Line Items] |  |
Goodwill, beginning balance | 547,595 us-gaap_Goodwill / us-gaap_StatementBusinessSegmentsAxis = mat_NorthAmericaSegmentMember | 546,898 us-gaap_Goodwill / us-gaap_StatementBusinessSegmentsAxis = mat_NorthAmericaSegmentMember
Acquisition | 176,182 us-gaap_GoodwillAcquiredDuringPeriod / us-gaap_StatementBusinessSegmentsAxis = mat_NorthAmericaSegmentMember |
Currency exchange rate impact | (2,264)us-gaap_GoodwillTranslationAdjustments / us-gaap_StatementBusinessSegmentsAxis = mat_NorthAmericaSegmentMember | 697 us-gaap_GoodwillTranslationAdjustments / us-gaap_StatementBusinessSegmentsAxis = mat_NorthAmericaSegmentMember
Goodwill, ending balance | 721,513 us-gaap_Goodwill / us-gaap_StatementBusinessSegmentsAxis = mat_NorthAmericaSegmentMember | 547,595 us-gaap_Goodwill / us-gaap_StatementBusinessSegmentsAxis = mat_NorthAmericaSegmentMember
International |  |
Goodwill [Line Items] |  |
Goodwill, beginning balance | 321,656 us-gaap_Goodwill / us-gaap_StatementBusinessSegmentsAxis = mat_InternationalMember | 320,169 us-gaap_Goodwill / us-gaap_StatementBusinessSegmentsAxis = mat_InternationalMember
Acquisition | 144,148 us-gaap_GoodwillAcquiredDuringPeriod / us-gaap_StatementBusinessSegmentsAxis = mat_InternationalMember |
Currency exchange rate impact | (6,569)us-gaap_GoodwillTranslationAdjustments / us-gaap_StatementBusinessSegmentsAxis = mat_InternationalMember | 1,487 us-gaap_GoodwillTranslationAdjustments / us-gaap_StatementBusinessSegmentsAxis = mat_InternationalMember
Goodwill, ending balance | 459,235 us-gaap_Goodwill / us-gaap_StatementBusinessSegmentsAxis = mat_InternationalMember | 321,656 us-gaap_Goodwill / us-gaap_StatementBusinessSegmentsAxis = mat_InternationalMember
American Girl |  |
Goodwill [Line Items] |  |
Goodwill, beginning balance | 213,988 us-gaap_Goodwill / us-gaap_StatementBusinessSegmentsAxis = mat_AmericanGirlMember | 213,731 us-gaap_Goodwill / us-gaap_StatementBusinessSegmentsAxis = mat_AmericanGirlMember
Currency exchange rate impact | (768)us-gaap_GoodwillTranslationAdjustments / us-gaap_StatementBusinessSegmentsAxis = mat_AmericanGirlMember | 257 us-gaap_GoodwillTranslationAdjustments / us-gaap_StatementBusinessSegmentsAxis = mat_AmericanGirlMember
Goodwill, ending balance | $ 213,220 us-gaap_Goodwill / us-gaap_StatementBusinessSegmentsAxis = mat_AmericanGirlMember | $ 213,988 us-gaap_Goodwill / us-gaap_StatementBusinessSegmentsAxis = mat_AmericanGirlMember

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- Definition Amount after accumulated impairment loss of an asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 20 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=35741047&loc=d3e13816-109267 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 20 -Section 45 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6388280&loc=d3e13770-109266 + Details
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- Definition Amount of increase in asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized resulting from a business combination. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=35741047&loc=d3e13816-109267 + Details
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- Definition Amount of increase (decrease) from foreign currency translation adjustments of an asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (f) -URI http://asc.fasb.org/extlink&oid=35741047&loc=d3e13816-109267 + Details
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