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v3.19.1

5. Risk Management (Details) ¥ in Thousands, R$ in Thousands, $ in Thousands | Dec. 31, 2018 BRL (R$) | Dec. 31, 2018 USD ($) | Dec. 31, 2018 JPY (¥) | Dec. 31, 2017 BRL (R$) | Dec. 31, 2017 USD ($) | Dec. 31, 2017 JPY (¥)
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SummaryOfRiskManagementLineItems [Line Items] |  |  |  |  |  |
Borrowings and financing - US$ | R$ 4,615,476 |  |  | R$ 3,972,200 |  |
Borrowings and financing - Yen | 2,026,726 |  |  | 1,692,713 |  |
Interest and charges from borrowings and financing - US$ | 40,193 |  |  | 26,628 |  |
Interest and charges from borrowings and financing - Yen | 12,517 |  |  | 10,834 |  |
Total exposure | 6,694,912 |  |  | 5,702,375 |  |
Borrowing cost - US$ | (22,390) |  |  | (26,454) |  |
Borrowing cost - Yen | (3,113) |  |  | (3,100) |  |
Total foreign currency-denominated borrowings | R$ 6,669,409 |  |  | R$ 5,672,821 |  |
Foreign currency |  |  |  |  |  |
SummaryOfRiskManagementLineItems [Line Items] |  |  |  |  |  |
Borrowings and financing - US$ | $ |  | $ 1,191,152 |  |  | $ 1,200,786 |
Borrowings and financing - Yen | ¥ |  |  | ¥ 57,463,173 |  |  | ¥ 57,575,271

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