Acquisition (Purchase Price Allocations Of Intangible Assets) (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2011 Y
Business Acquisition [Line Items]
Intangible assets	$ 162,500
Customer Relationships [Member]
Business Acquisition [Line Items]
Intangible assets	135,400
Trade Names And Trademarks-Indefinite [Member]
Business Acquisition [Line Items]
Indefinite intangible assets	18,900
Merchant Network [Member]
Business Acquisition [Line Items]
Intangible assets	$ 8,200
Weighted Average Useful Lives (in Years)	10
Maximum [Member] | Customer Relationships [Member]
Business Acquisition [Line Items]
Weighted Average Useful Lives (in Years)	20
Minimum [Member] | Customer Relationships [Member]
Business Acquisition [Line Items]
Weighted Average Useful Lives (in Years)	10