Annual report pursuant to Section 13 and 15(d)

ACQUISITIONS AND DISPOSITIONS Aeroleo (Details)

v3.3.1.900
ACQUISITIONS AND DISPOSITIONS Aeroleo (Details) - USD ($)
$ in Thousands
 12 Months Ended
Oct. 01, 2015
Dec. 31, 2015
Dec. 31, 2014
Business Acquisition [Line Items]      
Assets   $ 1,007,091 $ 1,017,174
Liabilities   530,984 $ 556,810
Variable Interest Entity, Not Primary Beneficiary | Aeroleo      
Business Acquisition [Line Items]      
Percent of economic interest 50.00%    
Percent of voting interest 80.00%    
Co-venturer | Aeroleo      
Business Acquisition [Line Items]      
Holding period for put/call arrangement (in years) 2 years    
Aeroleo      
Business Acquisition [Line Items]      
Assets   17,900  
Liabilities   15,900  
Era do Brazil      
Business Acquisition [Line Items]      
Remaining ownership percentage acquired 50.00%    
Era do Brazil | Variable Interest Entity, Primary Beneficiary      
Business Acquisition [Line Items]      
Remaining ownership percentage acquired 50.00%    
Aeroleo      
Business Acquisition [Line Items]      
Operating revenue   13,400  
Net income   $ 1,500