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Financial risk management - Derivative Contracts (Details)
biological_asset in Thousands, $ in Thousands
12 Months Ended
Dec. 31, 2021
USD ($)
biological_asset
Dec. 31, 2020
USD ($)
biological_asset
Disclosure of detailed information about financial instruments [line items]    
Tons of biological asset | biological_asset 148 283
Notional amount $ 54,639 $ 72,299
Fair Value Asset/ (Liability) (455) (12,833)
Loss/(Gain) $ (834) $ 11,616
Corn | Futures    
Disclosure of detailed information about financial instruments [line items]    
Tons of biological asset | biological_asset 6 52
Notional amount $ 935 $ 6,027
Fair Value Asset/ (Liability) 157 (2,846)
Loss/(Gain) $ 157 $ 2,846
Soybean | Futures    
Disclosure of detailed information about financial instruments [line items]    
Tons of biological asset | biological_asset 55 32
Notional amount $ 17,782 $ 7,242
Fair Value Asset/ (Liability) (1,283) (3,380)
Loss/(Gain) $ (1,283) $ 3,380
Wheat | Futures    
Disclosure of detailed information about financial instruments [line items]    
Tons of biological asset | biological_asset   (19)
Notional amount   $ (4,272)
Fair Value Asset/ (Liability)   151
Loss/(Gain)   $ (151)
Sugar | Futures    
Disclosure of detailed information about financial instruments [line items]    
Tons of biological asset | biological_asset 87 217
Notional amount $ 35,922 $ 63,025
Fair Value Asset/ (Liability) 671 (6,738)
Loss/(Gain) $ 292 $ 5,538
Ethanol | Futures    
Disclosure of detailed information about financial instruments [line items]    
Tons of biological asset | biological_asset   1
Notional amount   $ 277
Fair Value Asset/ (Liability)   (20)
Loss/(Gain)   $ 3