Description of Business - Additional Information (Detail)	12 Months Ended
Dec. 31, 2014 Transactions
Description Of Business [Line Items]
No of transactions	652,000,000
SVS Product [Member]
Description Of Business [Line Items]
No of transactions	270,000,000

Number of proprietary networks and third party networks transactions.

No definition available.

Name:	flt_NumberOfProprietaryNetworksAndThirdPartyNetworksTransactions
Namespace Prefix:	flt_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	duration