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Schedule of Future Minimum Payments for Licensing and Similar Agreements (Detail) (USD $)
In Thousands, unless otherwise specified
Dec. 31, 2014
Commitments and Contingencies Disclosure [Line Items]  
Future minimum payments for licensing and similar agreements obligations - 2015 $ 62,938mat_LicensingAndSimilarAgreementsFutureMinimumPaymentsDueCurrent
Future minimum payments for licensing and similar agreements obligations - 2016 108,960mat_LicensingAndSimilarAgreementsFutureMinimumPaymentsDueInTwoYears
Future minimum payments for licensing and similar agreements obligations - 2017 66,063mat_LicensingAndSimilarAgreementsFutureMinimumPaymentsDueInThreeYears
Future minimum payments for licensing and similar agreements obligations - 2018 29,092mat_LicensingAndSimilarAgreementsFutureMinimumPaymentsDueInFourYears
Future minimum payments for licensing and similar agreements obligations - 2019 17,465mat_LicensingAndSimilarAgreementsFutureMinimumPaymentsDueInFiveYears
Future minimum payments for licensing and similar agreements obligations - Thereafter 60mat_LicensingAndSimilarAgreementsFutureMinimumPaymentsDueThereafter
Total future minimum licensing and similar agreements obligations $ 284,578mat_LicensingAndSimilarAgreementsFutureMinimumPaymentsDue