XML 107 R84.htm IDEA: XBRL DOCUMENT v3.8.0.1
Sales - Narrative (Details)
$ in Millions
 12 Months Ended
Dec. 31, 2017
USD ($)
ton
cubic_meter
megawatt_hour
Dec. 31, 2016
USD ($)
Dec. 31, 2015
USD ($)
Disclosure of disaggregation of revenue from contracts with customers [line items]      
Contract assets $ 63.3 $ 111.8 $ 62.4
MWh of energy | megawatt_hour 408,236    
Sugar      
Disclosure of disaggregation of revenue from contracts with customers [line items]      
Contract assets $ 9.4    
Derivative notional amount | ton 27,848    
Ethanol      
Disclosure of disaggregation of revenue from contracts with customers [line items]      
Contract assets $ 6.3    
Cubic meters of product | cubic_meter 24,627    
Energy      
Disclosure of disaggregation of revenue from contracts with customers [line items]      
Contract assets $ 30.1    
Soybean      
Disclosure of disaggregation of revenue from contracts with customers [line items]      
Contract assets $ 7.2    
Derivative notional amount | ton 25,413    
Wheat      
Disclosure of disaggregation of revenue from contracts with customers [line items]      
Contract assets $ 3.6    
Derivative notional amount | ton 21,835    
Corn      
Disclosure of disaggregation of revenue from contracts with customers [line items]      
Contract assets $ 5.7    
Derivative notional amount | ton 37,391