Consolidated Statements of Income and Comprehensive Income (USD $)
In Millions, except Per Share data, unless otherwise specified
 3 Months Ended
Mar. 31, 2015
Mar. 31, 2014
Consolidated Statements of Income and Comprehensive Income    
Revenue $ 7,340.7 $ 10,550.9
Cost of revenue 7,125.3 10,362.9
Gross profit 215.4 188.0
Operating expenses:    
Compensation and employee benefits 88.6 71.1
Provision for bad debt 1.3 1.1
General and administrative 54.0 51.5
Total operating expenses 143.9 123.7
Income from operations 71.5 64.3
Non-operating expenses, net:    
Interest expense and other financing costs, net (7.3) (4.4)
Other income, net 0.3 1.9
Total non-operating expenses, net (7.0) (2.5)
Income before income taxes 64.5 61.8
Provision for income taxes 9.9 11.3
Net income including noncontrolling interest 54.6 50.5
Net loss attributable to noncontrolling interest (1.0) (0.2)
Net income attributable to World Fuel 55.6 50.7
Basic earnings per common share (in dollars per share) $ 0.79 $ 0.72
Basic weighted average common shares (in shares) 70.7 70.7
Diluted earnings per common share (in dollars per share) $ 0.78 $ 0.71
Diluted weighted average common shares (in shares) 71.4 71.4
Comprehensive income:    
Net income including noncontrolling interest 54.6 50.5
Other comprehensive (loss) income:    
Foreign currency translation adjustments (33.8) 3.5
Other comprehensive (loss) income (33.8) 3.5
Comprehensive income including noncontrolling interest 20.8 54.0
Comprehensive income (loss) attributable to noncontrolling interest 1.2 (0.2)
Comprehensive income attributable to World Fuel $ 19.6 $ 54.2