CONDENSED CONSOLIDATED STATEMENTS OF INCOME AND COMPREHENSIVE INCOME - USD ($) shares in Millions, $ in Millions	3 Months Ended
	Mar. 31, 2022	Mar. 31, 2021
Income Statement [Abstract]
Revenue	$ 12,382.0	$ 5,957.9
Cost of revenue	12,151.1	5,766.3
Gross profit	230.9	191.6
Operating expenses:
Compensation and employee benefits	114.9	92.5
General and administrative	74.7	59.4
Restructuring charges	0.0	2.1
Total operating expenses	189.6	154.0
Income from operations	41.3	37.6
Non-operating income (expenses), net:
Interest expense and other financing costs, net	(14.3)	(8.7)
Other income (expense), net	5.7	(1.2)
Total non-operating income (expense), net	(8.7)	(10.0)
Income (loss) before income taxes	32.6	27.6
Provision for income taxes	6.4	8.8
Net income (loss) including noncontrolling interest	26.3	18.8
Net income (loss) attributable to noncontrolling interest	(0.1)	0.0
Net income (loss) attributable to World Fuel	$ 26.3	$ 18.9
Basic earnings (loss) per common share (in dollars per share)	$ 0.42	$ 0.30
Basic weighted average common shares (in shares)	63.4	63.0
Diluted earnings (loss) per common share (in dollars per share)	$ 0.41	$ 0.30
Diluted weighted average common shares (in shares)	63.7	63.6
Comprehensive income:
Net income (loss) including noncontrolling interest	$ 26.3	$ 18.8
Other comprehensive income (loss):
Foreign currency translation adjustments	(9.4)	(4.0)
Cash flow hedges, net of income tax expense (benefit) of ($7.0) and $5.6 for the three months ended March 31, 2022 and 2021, respectively	(19.3)	16.4
Total other comprehensive income (loss)	(28.7)	12.4
Comprehensive income (loss) including noncontrolling interest	(2.4)	31.2
Comprehensive income (loss) attributable to noncontrolling interest	(0.1)	0.0
Comprehensive income (loss) attributable to World Fuel	$ (2.3)	$ 31.2