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Subsequent Events (Narrative) (Details)
BRL in Thousands, $ in Thousands
1 Months Ended
Apr. 26, 2016
BRL
Apr. 26, 2016
USD ($)
Apr. 21, 2016
Apr. 08, 2016
Mar. 29, 2016
BRL
lender
Nov. 30, 2015
Mar. 29, 2016
USD ($)
lender
2016 Notes [Member]              
Subsequent Event [Line Items]              
Redemption of debt, percentage of principal amount redeemed           6.97%  
Redemption price (as a percent)           93.75%  
2016 Notes [Member] | Subsequent Event [Member]              
Subsequent Event [Line Items]              
Currency conversion ratio (in BRL per USD) 3.5503 3.5503          
Payments for extinguishment of debt BRL 421,765 $ 118,797          
Notes Tendered on or before April 21, 2016 [Member] | 2016 Notes [Member] | Subsequent Event [Member]              
Subsequent Event [Line Items]              
Redemption of debt, percentage of principal amount redeemed     67.29%        
Redemption price (as a percent)       103.00%      
Notes tendered from April 21, 2016 to May 5, 2016 [Member] | 2016 Notes [Member] | Subsequent Event [Member]              
Subsequent Event [Line Items]              
Redemption price (as a percent)       100.00%      
Subsidiaries [Member] | Secured Loan Agreement [Member] | Subsequent Event [Member]              
Subsequent Event [Line Items]              
Debt instrument, term         4 years    
Long-term debt         BRL 613,850   $ 167,262
Number of lenders         5   5
Currency conversion ratio (in BRL per USD)         3.67    
Subsidiaries [Member] | Interbank Market Reference Rate [Member] | Secured Loan Agreement [Member] | Subsequent Event [Member]              
Subsequent Event [Line Items]              
Basis point spread on variable rate (as a percent)         4.50%   4.50%