Acquisitions - Additional Information (Detail)	12 Months Ended								0 Months Ended						0 Months Ended		12 Months Ended		1 Months Ended		0 Months Ended
	Dec. 31, 2013 USD ($)	Dec. 31, 2012 USD ($)	Dec. 31, 2011 USD ($)	Dec. 31, 2013 Prepaid Expenses and Other Current Assets [Member] USD ($)	Dec. 31, 2013 Other Noncurrent Assets [Member] USD ($)	Dec. 31, 2013 Minimum [Member] Other Noncurrent Assets [Member] USD ($)	Dec. 31, 2013 Maximum [Member] Other Noncurrent Assets [Member] USD ($)	Dec. 31, 2013 Foreign Line of Credit New Zealand [Member] NZD	Oct. 02, 2013 Epyx [Member] Service_Garage	Aug. 10, 2013 Vb Servicos Comercio Administracao Ltda [Member] Customer	Mar. 25, 2013 GE Capital's Fleet Card [Member] Center Fuel_Center	Dec. 31, 2013 Card Link [Member] USD ($)	Dec. 31, 2013 Card Link [Member] Foreign Line of Credit New Zealand [Member] NZD	Dec. 31, 2013 Russian Fuel Card Company [Member] USD ($)	Jul. 03, 2012 CTF Technologies [Member] USD ($)	Dec. 31, 2012 All 2012 Acquisitions [Member] USD ($)	Dec. 31, 2011 Allstar Business Solutions Limited [Member] USD ($)	Dec. 31, 2011 Allstar Business Solutions Limited [Member] GBP (£)	Aug. 31, 2011 Mexican Prepaid Fuelcard and Food Voucher Business [Member] BusinessShareholder	Dec. 31, 2013 All 2013 Acquisitions [Member] USD ($)	Oct. 17, 2013 Nex Traq [Member] Customer
Business Acquisition, Contingent Consideration [Line Items]
Aggregate purchase price	$ 848,200,000	$ 207,400,000	$ 333,800,000												$ 156,000,000		$ 312,000,000	£ 200,000,000
Deferred payment	36,800,000	11,300,000												11,300,000		11,300,000
Contingent earn-out payment	80,476,000	4,900,000														4,900,000				83,100,000
Aggregate purchase price, net of cash acquired	35,600,000
Contingent consideration future payments, low range	0
Contingent consideration future payments, high range	117,300,000
Contingent consideration payable in second quarter	83,100,000
Number of fuel outlets											6,000
Number of automotive service and repair centers											7,000
Customer relationships with regards to fuel cards											33.33%
Acquisition	9,800,000							12,000,000				9,800,000	12,000,000
Number of customers										35,000											100,000
Number of transportation agencies										800
Number of services garages to fleet operators									9,000
Percentage increase in revenue after acquisition	12.00%	21.00%
Percentage of business acquisition, pro forma income (loss) from continuing operations before changes in accounting and extraordinary items and tax after acquisition	3.00%	3.00%
Percentage of increase in net income loss after acquisition	3.00%	3.00%
Percentage of increase in earnings per share basic after acquisition	3.00%	3.00%
Percentage of increase in earnings per share diluted after acquisition	3.00%	3.00%
Acquisition related costs	6,000,000	2,500,000
Uncertain tax positions	15,300,000
Contingent liabilities	55,000,000
Indemnification asset recorded	52,600,000			2,500,000	50,100,000	48,500,000	52,600,000
First payment related earn-out	900,000
Cash and cash equivalents acquired in purchase																$ 1,900,000
Number of businesses served over by acquired entity																			10,000
Number of card holders and beneficiaries hold by businesses																			800,000