Acquisitions (Narrative) (Details) (USD $)	12 Months Ended
	Dec. 31, 2011	Jun. 19, 2011
Business Acquisitions [Line Items]
Number of automated teller machines	52,900
Identifiable finite-lived intangible assets	$ 46,000,000
Total goodwill related to acquisitions	104,135,000
EDC [Member]
Business Acquisitions [Line Items]
Business acquisition, cash paid		145,000,000
Effective date of acquisition	July 25, 2011
Number of automated teller machines	3,600
Number of states in which entity operates	47
Revenue from acquired entity	26,500,000
Earnings from acquired entity	100,000
Non-recurring acquisition-related expenses	1,400,000
Business acquisition, goodwill expected, tax deductible amount	57,800,000
LocatorSearch, LLC [Member]
Business Acquisitions [Line Items]
Effective date of acquisition	August 1, 2011
Mr. Cash ATM Network, Inc. [Member]
Business Acquisitions [Line Items]
Effective date of acquisition	October 28, 2011
Number of automated teller machines	600
Access To Money, Inc. [Member]
Business Acquisitions [Line Items]
Effective date of acquisition	November 1, 2011
Number of automated teller machines	10,000
Number of states in which entity operates	50
Maximum deferred contingent consideration payment	5,250,000
Contingent consideration Payment (in years)	4
Other Acquisitions [Member]
Business Acquisitions [Line Items]
Number of other businesses acquired	3
Identifiable finite-lived intangible assets	6,700,000
Weighted-average life of purchased identifiable finite-lived intangible assets (in years)	6.2
Total goodwill related to acquisitions	2,900,000
Business acquisition, purchase price	$ 29,100,000
Maximum [Member] | Other Acquisitions [Member]
Business Acquisitions [Line Items]
Weighted-average life of purchased identifiable finite-lived intangible assets (in years)	7
Minimum [Member] | Other Acquisitions [Member]
Business Acquisitions [Line Items]
Weighted-average life of purchased identifiable finite-lived intangible assets (in years)	3