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Commitments and Contingencies - Schedule of Future Minimum Obligations for Purchases of Inventory, Services, and Other (Detail) $ in Thousands | Dec. 31, 2020 USD ($)
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Commitments and Contingencies Disclosure [Abstract] |
2021 | $ 244,175
2022 | 48,212
2023 | 29,704
2024 | 0
2025 | 0
Thereafter | 0
Total future minimum obligations for purchases of inventory, services, and other | $ 322,091

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- Definition For purchases of inventory, other assets, and services containing provisions for future minimum obligations, the total required obligations due. + References No definition available. + Details
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Data Type: | xbrli:monetaryItemType
Balance Type: | credit
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X
- Definition Purchases Of Inventory Other Assets And Services Future Minimum Obligations Due After Year Five + References No definition available. + Details
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Data Type: | xbrli:monetaryItemType
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X
- Definition For purchases of inventory, other assets, and services containing provisions for future minimum obligations, required obligations due within one year of the balance sheet date. + References No definition available. + Details
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Namespace Prefix: | mat_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
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X
- Definition For purchases of inventory, other assets, and services containing provisions for future minimum obligations, required obligations due within the fifth year of the balance sheet date. + References No definition available. + Details
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Data Type: | xbrli:monetaryItemType
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- Definition For purchases of inventory, other assets, and services containing provisions for future minimum obligations, required obligations due within the fourth year of the balance sheet date. + References No definition available. + Details
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Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

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- Definition For purchases of inventory, other assets and services containing provisions for future minimum obligations, required obligations due within the third year of the balance sheet date. + References No definition available. + Details
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Namespace Prefix: | mat_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition For purchases of inventory, other assets. and services containing provisions for future minimum obligations, required obligations due within the second year of the balance sheet date. + References No definition available. + Details
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Namespace Prefix: | mat_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

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- References No definition available. + Details
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