Propert and Equipment, NET (Details) (USD $)	12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010
Property, Plant and Equipment [Line Items]
Property, Plant and Equipment, Gross	$ 322,757,000	$ 278,775,000
Property and equipment, accumulated depreciation	(207,282,000)	(175,875,000)
Property and Equipment, Net	115,475,000	102,900,000	91,527,000
Depreciation, Depletion and Amortization	38,700,000	35,400,000	31,800,000
ATMs [Member]
Property, Plant and Equipment [Line Items]
Property, Plant and Equipment, Gross	119,238,000	95,415,000
POS Terminals [Member]
Property, Plant and Equipment [Line Items]
Property, Plant and Equipment, Gross	49,118,000	49,494,000
Vehicles and Office Equipment [Member]
Property, Plant and Equipment [Line Items]
Property, Plant and Equipment, Gross	47,221,000	44,899,000
Computers and software [Member]
Property, Plant and Equipment [Line Items]
Property, Plant and Equipment, Gross	106,541,000	88,327,000
Land and buildings [Member]
Property, Plant and Equipment [Line Items]
Property, Plant and Equipment, Gross	$ 639,000	$ 640,000