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Financial Instruments and Risks - Derivatives Outstanding by Type of Contract (Details) R$ in Thousands, $ in Thousands | Dec. 31, 2018 USD ($) | Dec. 31, 2018 BRL (R$) | Dec. 31, 2017 USD ($) | Dec. 31, 2017 BRL (R$)
--- | --- | --- | --- | ---
Financial Instruments and Risks |  |  |  |
Fair value |  | R$ (1,142,766) |  | R$ 6,014
Derivative financial instruments |  |  |  |
Financial Instruments and Risks |  |  |  |
Notional value | $ | $ 8,354,597 |  | $ 1,896,566 |
Cash flow hedge |  |  |  |
Financial Instruments and Risks |  |  |  |
Fair value |  | (118,918) |  | 28,693
Cash flow hedge | Zero-cost collar (R$ vs. US$) |  |  |  |
Financial Instruments and Risks |  |  |  |
Notional value | $ | 3,040,000 |  | 1,485,000 |
Fair value |  | (134,814) |  | 25,822
Cash flow hedge | NDF (R$ vs. US$) |  |  |  |
Financial Instruments and Risks |  |  |  |
Notional value | $ | 150,000 |  |  |
Fair value |  | 17,036 |  |
Cash flow hedge | Fixed Swap (US$) vs. CDI |  |  |  |
Financial Instruments and Risks |  |  |  |
Notional value | $ |  |  | 50,000 |
Fair value |  |  |  | 5,356
Cash flow hedge | Swap CDI vs. Fixed (US$) |  |  |  |
Financial Instruments and Risks |  |  |  |
Notional value | $ |  |  | 50,000 |
Fair value |  |  |  | (2,485)
Cash flow hedge | Swap bunker |  |  |  |
Financial Instruments and Risks |  |  |  |
Notional value | $ | 5,344 |  |  |
Fair value |  | (1,140) |  |
Cash flow hedge | Undesignated exchange hedge |  |  |  |
Financial Instruments and Risks |  |  |  |
Notional value | $ | 2,390,000 |  | 1,585,000 |
Fair value |  | (34,374) |  | 28,693
Cash flow hedge | Undesignated exchange hedge | Zero-cost collar (R$ vs. US$) |  |  |  |
Financial Instruments and Risks |  |  |  |
Notional value | $ | 2,340,000 |  | 1,485,000 |
Fair value |  | (41,122) |  | 25,822
Cash flow hedge | Undesignated exchange hedge | NDF (R$ vs. US$) |  |  |  |
Financial Instruments and Risks |  |  |  |
Notional value | $ | 50,000 |  |  |
Fair value |  | 6,749 |  |
Cash flow hedge | Undesignated exchange hedge | Fixed Swap (US$) vs. CDI |  |  |  |
Financial Instruments and Risks |  |  |  |
Notional value | $ |  |  | 50,000 |
Fair value |  |  |  | 5,356
Cash flow hedge | Undesignated exchange hedge | Fixed Swap CDI vs. US$ |  |  |  |
Financial Instruments and Risks |  |  |  |
Notional value | $ |  |  | 50,000 |
Fair value |  |  |  | (2,485)
Cash flow hedge | Fibria | Undesignated exchange hedge |  |  |  |
Financial Instruments and Risks |  |  |  |
Notional value | $ | 800,000 |  |  |
Fair value |  | (83,405) |  |
Cash flow hedge | Fibria | Undesignated exchange hedge | Zero-cost collar (R$ vs. US$) |  |  |  |
Financial Instruments and Risks |  |  |  |
Notional value | $ | 700,000 |  |  |
Fair value |  | (93,692) |  |
Cash flow hedge | Fibria | Undesignated exchange hedge | NDF (R$ vs. US$) |  |  |  |
Financial Instruments and Risks |  |  |  |
Notional value | $ | 100,000 |  |  |
Fair value |  | 10,287 |  |
Debt hedge |  |  |  |
Financial Instruments and Risks |  |  |  |
Fair value |  | (1,023,848) |  | (22,679)
Debt hedge | Exchange hedge |  |  |  |
Financial Instruments and Risks |  |  |  |
Notional value | $ | 752,110 |  | 291,725 |
Fair value |  | (377,020) |  | (21,562)
Debt hedge | Exchange hedge | Swap CDI vs. Fixed (US$) |  |  |  |
Financial Instruments and Risks |  |  |  |
Notional value | $ | 752,110 |  | 291,725 |
Fair value |  | (377,020) |  | (21,562)
Debt hedge | Commodity hedge |  |  |  |
Financial Instruments and Risks |  |  |  |
Notional value | $ | 5,344 |  |  |
Fair value |  | (1,140) |  |
Debt hedge | Commodity hedge | Swap bunker |  |  |  |
Financial Instruments and Risks |  |  |  |
Notional value | $ | 5,344 |  |  |
Fair value |  | (1,140) |  |
Debt hedge | Interest hedge |  |  |  |
Financial Instruments and Risks |  |  |  |
Notional value | $ | 757,143 |  | 19,841 |
Fair value |  | (33,663) |  | (1,117)
Debt hedge | Interest hedge | Swap Libor vs. Fixed (US$) |  |  |  |
Financial Instruments and Risks |  |  |  |
Notional value | $ | 757,143 |  | 19,841 |
Fair value |  | (33,663) |  | (1,117)
Debt hedge | Fibria | Exchange hedge |  |  |  |
Financial Instruments and Risks |  |  |  |
Notional value | $ | 1,650,000 |  |  |
Fair value |  | (476,121) |  |
Debt hedge | Fibria | Exchange hedge | Swap CDI vs. Fixed (US$) |  |  |  |
Financial Instruments and Risks |  |  |  |
Notional value | $ | 1,650,000 |  |  |
Fair value |  | (476,121) |  |
Debt hedge | Fibria | Interest hedge |  |  |  |
Financial Instruments and Risks |  |  |  |
Notional value | $ | 2,000,000 |  |  |
Fair value |  | (137,044) |  |
Debt hedge | Fibria | Interest hedge | Swap Libor vs. Fixed (US$) |  |  |  |
Financial Instruments and Risks |  |  |  |
Notional value | $ | 2,000,000 |  |  |
Fair value |  | (137,044) |  |
Cash flow hedge and debt hedge |  |  |  |
Financial Instruments and Risks |  |  |  |
Notional value | $ | 3,904,597 |  | $ 1,896,566 |
Fair value |  | (446,196) |  | R$ 6,014
Cash flow hedge and debt hedge | Fibria |  |  |  |
Financial Instruments and Risks |  |  |  |
Notional value | $ | $ 4,450,000 |  |  |
Fair value |  | R$ (696,570) |  |

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