CONDENSED CONSOLIDATED STATEMENTS OF INCOME AND COMPREHENSIVE INCOME - USD ($) shares in Millions, $ in Millions	3 Months Ended
	Mar. 31, 2024	Mar. 31, 2023
Income Statement [Abstract]
Revenue	$ 10,951.4	$ 12,481.6
Cost of Revenue	10,697.3	12,218.9
Gross profit	254.1	262.7
Operating Expenses [Abstract]
Compensation and employee benefits	115.5	119.2
General and administrative	75.1	79.0
Restructuring charges	0.2	0.0
Total operating expenses	190.8	198.2
Operating Income (Loss), Total	63.3	64.6
Nonoperating Income (Expense) [Abstract]
Interest expense and other financing costs, net	(28.9)	(34.3)
Other income (expense), net	(3.9)	(3.5)
Total non-operating income (expense), net	(32.8)	(37.8)
Income (Loss) from Continuing Operations before Income Taxes, Noncontrolling Interest, Total	30.5	26.7
Income Tax Expense (Benefit)	3.3	4.2
Net Income (Loss), Including Portion Attributable to Noncontrolling Interest, Total	27.2	22.6
Net Income (Loss) Attributable to Noncontrolling Interest	(0.2)	(0.2)
Net Income (Loss) Attributable to Parent, Total	$ 27.4	$ 22.8
Earnings Per Share, Basic	$ 0.46	$ 0.37
Weighted Average Number of Shares Outstanding, Basic	59.9	62.2
Diluted earnings (loss) per common share	$ 0.45	$ 0.36
Diluted weighted average common shares	60.3	62.8
Comprehensive income:
Net income (loss) including noncontrolling interest	$ 27.2	$ 22.6
Other Comprehensive Income (Loss), Net of Tax [Abstract]
Foreign currency translation adjustments	(11.8)	5.7
Cash flow hedges, net of income tax expense (benefit) of ($0.5) and ($0.7) for the three months ended March 31, 2024 and 2023, respectively	(1.0)	(2.2)
Total other comprehensive income (loss)	(12.9)	3.5
Comprehensive income (loss) including noncontrolling interest	14.3	26.1
Comprehensive income (loss) attributable to noncontrolling interest	(0.2)	(0.2)
Comprehensive income (loss) attributable to World Kinect	$ 14.5	$ 26.3