Sale of enterprise business (Details) (Enterprise business unit, USD $) In Millions, unless otherwise specified	0 Months Ended	12 Months Ended	1 Months Ended
	Apr. 16, 2013 employee	Jun. 30, 2013	May 30, 2014 Prepaid expenses and other current assets	Jun. 30, 2013 Prepaid expenses and other current assets
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			1.3
Amount held back for satisfaction of possible contingencies received			1.3
Term of transition services agreement	3 years
Gain on sale of enterprise business		$ 6.5