Sale of enterprise business (Details) (Enterprise business, USD $) In Millions, unless otherwise specified	0 Months Ended	12 Months Ended
	Apr. 16, 2013	Jun. 30, 2013
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Cash consideration received for sale of business unit	$ 10.0
Number of employees who became employees of FleetCor as a result of the transaction	50
Amount held back for satisfaction of possible contingencies	1.3
Term of transition services agreement	3 years
Gain on sale of enterprise business		6.5
Prepaid expenses and other current assets
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Amount held back for satisfaction of possible contingencies	$ 1.3