Commitments And Contingencies (Narrative) (Details) (USD $)	0 Months Ended	12 Months Ended				12 Months Ended		3 Months Ended
	Aug. 16, 2010	Dec. 31, 2011 years	Dec. 31, 2010	Dec. 31, 2009	Dec. 15, 2011	Dec. 31, 2009 7-Eleven Financial Services Business [Member]	Dec. 31, 2011 7-Eleven Financial Services Business [Member]	Mar. 31, 2011 Grupo Financiero Banorte [Member]	Dec. 31, 2011 U.S. [Member]	Dec. 31, 2011 U.K. [Member]
Lawsuit filed date	August 16, 2010
Fine, per month, per ATM, if terms of Settlement Agreement are not met by March 15, 2012					$ 50
Number of ATMs								2,000
Capital lease outstanding		0	0
Unfavorable contracts assumed in acquisition		5,200,000					8,700,000
Reduction in lease expenses						3,400,000
Letter of credit released upon expiration of leases			400,000
Operating lease expiration maximum term (in years)		14
Rental expenses		6,300,000	5,700,000	6,400,000
Asset retirement obligations		34,517,000	26,657,000	24,003,000
Minimum service requirement at year end		$ 3,800,000							$ 6,800,000	$ 1,900,000