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Balances and Transactions in Foreign Currencies (Tables) | 12 Months Ended
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Dec. 31, 2020
Balances and Transactions in Foreign Currencies [Abstract] |
Summary of Assets, Liabilities and Transactions in Foreign Currencies | As of December 31, 2020 and 2019, assets and liabilities denominated in foreign currencies, expressed in Mexican pesos (contractual amounts) are as follows:
| Assets | Liabilities
Balances | Current | Non-current | Current | Non-current
As of December 31, 2020 |  |  |  |
U.S. dollars | 21,787 | 4 | 2,645 | 50,969
Euros | — | — | 95 | —
As of December 31, 2019 |  |  |  |
U.S. dollars | 11,122 | 93 | 2,762 | 37,691
Euros | — | — | 49 | —
For the years ended December 31, 2020, 2019 and 2018 transactions denominated in foreign currencies, expressed in Mexican pesos (contractual amounts) are as follows:
Transactions | Revenues | Purchases of Raw Materials | Interest Expense | Other
Year ended December 31, 2020 U.S.dollars | 462 | 12,801 | 3,418 | 2,213
Year ended December 31, 2019 U.S.dollars | 1,506 | 14,307 | 1,910 | 2,723
Year ended December 31, 2019 Euros | — | 454 | — | —
Year ended December 31, 2018 U.S.dollars | 1,481 | 18,129 | 2,223 | 2,161

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