Consolidated Statements of Income and Comprehensive Income - USD ($) shares in Millions, $ in Millions		3 Months Ended
		Mar. 31, 2016		Mar. 31, 2015
Consolidated Statements of Income and Comprehensive Income
Revenue	[1]	$ 5,192.6		$ 7,340.7
Cost of revenue	[1]	4,968.8		7,125.3
Gross profit	[1]	223.8		215.4
Operating expenses:
Compensation and employee benefits	[1]	95.9		88.6
Provision for bad debt	[1]	1.5		1.3
General and administrative	[1]	63.1		54.0
Total operating expenses	[1]	160.5		143.9
Income from operations	[1]	63.3		71.5
Non-operating expenses, net:
Interest expense and other financing costs, net	[2]	(7.6)		(7.3)
Other income, net	[1]	1.3		0.3
Total non-operating expenses, net	[1]	(6.3)		(7.0)
Income before income taxes	[1]	57.1		64.5
Provision for income taxes	[1]	4.8		9.9
Net income including noncontrolling interest	[1]	52.3		54.6
Net loss attributable to noncontrolling interest	[1]	(0.1)		(1.0)
Net income attributable to World Fuel	[2]	$ 52.4		$ 55.6
Basic earnings per common share (in dollars per share)	[2]	$ 0.75		$ 0.79
Basic weighted average common shares (in shares)	[2]	69.5		70.7
Diluted earnings per common share (in dollars per share)	[2]	$ 0.75		$ 0.78
Diluted weighted average common shares (in shares)	[2]	70.0		71.4
Comprehensive income:
Net income including noncontrolling interest	[1]	$ 52.3		$ 54.6
Other comprehensive (loss) income:
Foreign currency translation adjustments	[1]	2.5		(33.8)
Derivative instruments, net of income tax benefit: 2016 - $0.2	[1]	(1.7)
Other comprehensive income (loss)		0.8	[2]	(33.8)	[1]
Comprehensive income including noncontrolling interest	[1]	53.1		20.8
Comprehensive income attributable to noncontrolling interest	[1]	1.5		1.2
Comprehensive income attributable to World Fuel	[1]	$ 51.6		$ 19.6

[1] Amounts may not add due to rounding

[2] Amounts may not add due to rounding