XML 59 R48.htm IDEA: XBRL DOCUMENT
v3.19.2

Foreign Currency Transaction Exposure (Tables) | 6 Months Ended
--- | ---
Jun. 30, 2019
Foreign Currency [Abstract] |
Schedule of Currency Transaction Exposure | Currency transaction gains (losses) included in the consolidated statements of operations are as follows:
| For the Three Months Ended |  | For the Six Months Ended
| June 30, 2019 |  | June 30, 2018 |  | June 30, 2019 |  | June 30, 2018
| (In thousands)
Operating income (loss) | $ | 672 |  |  | $ | (12,274 | ) |  | $ | (3,098 | ) |  | $ | (4,541 | )
Other non-operating income (expense), net | 1,117 |  |  | 446 |  |  | (551 | ) |  | 1,033 |
Currency transaction gains (losses), net | $ | 1,789 |  |  | $ | (11,828 | ) |  | $ | (3,649 | ) |  | $ | (3,508 | )

X
- Definition Tabular disclosure of foreign currency transaction gains and losses. + References No definition available. + Details
Name: | mat_ScheduleOfForeignCurrencyTransactionGainsAndLossesTableTextBlock
Namespace Prefix: | mat_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration

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