XML 104 R86.htm IDEA: XBRL DOCUMENT v3.19.1
Summary of significant accounting policies (Details 1) - $ / perunit
Dec. 31, 2018
Dec. 31, 2017
Dec. 31, 2016
Closing foreign exchange rate [1] 86.19 79.62 80.15
US Dollar [Member]      
Closing foreign exchange rate 694.77 614.75 669.47
Euros [Member]      
Closing foreign exchange rate 794.75 739.15 705.60
Argentinean Pesos [Member]      
Closing foreign exchange rate 18.43 32.96 42.13
Uruguayan Peso [Member]      
Closing foreign exchange rate 21.44 21.34 22.82
Canadian Dollar [Member]      
Closing foreign exchange rate 509.62 491.05 498.38
Sterling Pound [Member]      
Closing foreign exchange rate 882.36 832.09 826.10
Paraguayan Guarani [Member]      
Closing foreign exchange rate 0.12 0.11 0.12
Bolivians [Member]      
Closing foreign exchange rate 101.28 89.61 97.59
Colombian Peso [Member]      
Closing foreign exchange rate 0.21 0.21 0.22
Unidades de Fomento [Member]      
Closing foreign exchange rate [2] 27,565.79 26,798.14 26,347.98
[1] The Unidad Indexada (UI) is a Uruguay inflation-indexed, Uruguayan peso-denominated monetary unit. The UI rate is set daily in advance based on changes in the previous month's inflation rate.
[2] The Unidad de Fomento (UF) is a Chilean inflation-indexed, Chilean peso-denominated monetary unit. The UF rate is set daily in advance based on changes in the previous month's inflation rate.