Acquisitions (Narrative) (Details)	3 Months Ended		6 Months Ended			6 Months Ended
	Jun. 30, 2014 USD ($) item	Jun. 30, 2013 USD ($)	Jun. 30, 2014 USD ($) item	Jun. 30, 2013 USD ($)	Dec. 31, 2013 USD ($)	Jun. 30, 2014 Cardpoint Limited [Member] USD ($)	Jun. 30, 2014 Cardpoint Limited [Member] GBP (£)	Jun. 30, 2014 Automated Financial, L.L.C. [Member] item	Jun. 30, 2014 U.K. [Member] item	Jun. 30, 2014 U.K. [Member] Cardpoint Limited [Member] item	Jun. 30, 2014 Germany [Member] item	Jun. 30, 2014 Germany [Member] Cardpoint Limited [Member] item
Business Acquisitions [Line Items]
Effective date of acquisition						Aug. 07, 2013	Aug. 07, 2013	Feb. 06, 2014
Number of automated teller machines	83,600		83,600					2,100	12,000	7,100	900	800
Business Combination, total consideration						$ 161,800,000	£ 105,400,000
Acquisition-related expenses	7,642,000	1,184,000	10,729,000	4,006,000
Goodwill	$ 412,964,000		$ 412,964,000		$ 404,491,000