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Foreign Currency Transaction Exposure | 3 Months Ended
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Mar. 31, 2025
Foreign Currency [Abstract] |
Foreign Currency Transaction Exposure | Foreign Currency Transaction Exposure Currency transaction gains (losses) included in the consolidated statements of operations were as follows:
| For the Three Months Ended |  |
| March 31, 2025 |  | March 31, 2024 |  | Statements of Operations Classification
| (In thousands) |  |
Currency transaction gains, net | $ | 930 |  |  | $ | 118 |  |  | Operating income/expense
Currency transaction (losses) gains, net | (10,435) |  |  | 714 |  |  | Other non-operating income/expense, net
Currency transaction (losses) gains, net | $ | (9,505) |  |  | $ | 832 |  |  |

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- Definition The entire disclosure for foreign currency transactions. + References No definition available. + Details
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Namespace Prefix: | mat_
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Balance Type: | na
Period Type: | duration

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- References No definition available. + Details
Name: | us-gaap_ForeignCurrencyAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration