Acquisitions - Additional Information (Detail) NZD in Millions			3 Months Ended	12 Months Ended
	Nov. 14, 2014 USD ($) shares	Mar. 25, 2013	Dec. 31, 2014 USD ($)	Dec. 31, 2015 USD ($)	Dec. 31, 2014 USD ($)		Dec. 31, 2013 USD ($)	Apr. 29, 2013 USD ($)	Apr. 29, 2013 NZD
Business Acquisition [Line Items]
Aggregate purchase price							$ 839,300,000
Deferred payments of previous acquisitions							36,800,000
Equity method investments			$ 141,933,000	$ 76,568,000	$ 141,933,000
Aggregate purchase price				57,539,000	2,567,017,000	[1]	728,343,000
Cash acquired							35,600,000
Issuance of new debt in acquisition	$ 2,400,000,000
Contingent consideration			43,486,000		43,486,000
Adjustments to the estimated fair value of contingent consideration			28,100,000
Acquisition related costs							6,000,000
Shell [Member]
Business Acquisition [Line Items]
Aggregate purchase price				45,700,000
Deferred payments of previous acquisitions				3,400,000
Masternaut Group Holdings Limited [Member]
Business Acquisition [Line Items]
Equity method investments				$ 8,400,000
Equity method investment, ownership percentage				44.00%
Two Thousand Fourteen Acquisition [Member]
Business Acquisition [Line Items]
Aggregate purchase price					3,670,000,000
Cash acquired					165,800,000
All 2013 Acquisitions [Member]
Business Acquisition [Line Items]
Deferred payments of previous acquisitions					23,200,000
Contingent consideration			$ 39,800,000		$ 39,800,000		83,100,000
Uncertain tax positions							6,900,000
All 2013 Acquisitions [Member] | Accrued Expenses and Other Long Term Liabilities [Member]
Business Acquisition [Line Items]
Contingent consideration							17,300,000
All 2013 Acquisitions [Member] | Other Noncurrent Assets [Member]
Business Acquisition [Line Items]
Indemnification asset recorded							22,100,000
GE Capital's Fleet Card [Member]
Business Acquisition [Line Items]
Customer relationships with regards to fuel cards		33.33%
Card Link [Member]
Business Acquisition [Line Items]
Facility used for acquisition								$ 9,400,000
Card Link [Member] | Foreign Line of Credit New Zealand [Member]
Business Acquisition [Line Items]
Facility used for acquisition | NZD									NZD 12.0
Comdata Inc. [Member]
Business Acquisition [Line Items]
Aggregate purchase price	3,400,000,000
Aggregate purchase price	$ 3,400,000,000
Business acquisition date	Nov. 14, 2014
Common shares issued to finance acquisition | shares	7,625,380
Ceridian LLC [Member] | Common Stock [Member]
Business Acquisition [Line Items]
Common shares issued to finance acquisition | shares	7,600,000
Minimum [Member]
Business Acquisition [Line Items]
Indemnification asset recorded							22,500,000
Maximum [Member]
Business Acquisition [Line Items]
Indemnification asset recorded							$ 24,200,000

[1] Amounts reported in acquisitions and investment, net of cash acquired, includes debt assumed and immediately repaid in acquisitions.