Annual report pursuant to Section 13 and 15(d)

COST METHOD INVESTMENT (Additional Information) (Details)

v3.6.0.2
COST METHOD INVESTMENT (Additional Information) (Details)
BRL in Millions, $ in Millions
3 Months Ended 12 Months Ended
Jun. 30, 2015
BRL
Jun. 30, 2015
USD ($)
Dec. 31, 2016
USD ($)
Dec. 31, 2015
USD ($)
Dec. 31, 2014
USD ($)
Dec. 31, 2016
BRL
Dec. 31, 2016
USD ($)
Jun. 30, 2015
USD ($)
Dec. 31, 2012
BRL
Schedule of Cost-method Investments [Line Items]                  
Percentage of interest in Boa Vista Servicos S.A.           1.00% 1.00%    
Fair value Boa Vista Servicos S.A. BRL 44.0         BRL 44.0 $ 13.4 $ 14.1  
Cost-method Investments, other than temporary impairment BRL 46.0 $ 14.8 $ 0.0 $ 14.8 $ 0.0        
Cumulative translation adjustment | $             $ 37.1    
Boa Vista Servicos S.A.                  
Schedule of Cost-method Investments [Line Items]                  
Percentage of interest in Boa Vista Servicos S.A.           15.00% 15.00%    
Investment in Boa Vista Servicos S.A. | BRL                 BRL 130.0