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Other Selling and Administrative Expenses | 3 Months Ended
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Mar. 31, 2021
Other Income and Expenses [Abstract] |
Other Selling and Administrative Expenses | Other Selling and Administrative Expenses Other selling and administrative expenses include the following:
| For the Three Months Ended
| March 31, 2021 |  | March 31, 2020
| (In thousands)
Design and development | $ | 43,981 |  |  | $ | 44,628 |
Identifiable intangible asset amortization | 9,514 |  |  | 9,965 |

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- Definition The entire disclosure of other selling and administrative expenses. + References No definition available. + Details
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Namespace Prefix: | mat_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
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- References No definition available. + Details
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Namespace Prefix: | us-gaap_
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