XML 95 R77.htm IDEA: XBRL DOCUMENT v3.7.0.1
Derivatives (Details) - Options - Cash flow hedges
BRL in Thousands, $ in Thousands
Jun. 30, 2017
USD ($)
Jun. 30, 2017
BRL
Jun. 30, 2016
USD ($)
Brazilian Real calls      
Derivative [Line Items]      
Notional amount | BRL   BRL 39,000  
Fair value | $ $ 2,686   $ 3,027
Brazilian Real puts      
Derivative [Line Items]      
Notional amount | BRL   BRL 39,000  
Fair value | $     $ (372)