Goodwill And Other Intangible Assets (Gross Amount Of Other Intangible Assets And The Related Accumulated Amortization) (Details) (USD $)			9 Months Ended
	Sep. 30, 2011	Dec. 31, 2010	Sep. 30, 2011 Minimum [Member] Retailer Relationships [Member]	Sep. 30, 2011 Minimum [Member] Other [Member]	Sep. 30, 2011 Maximum [Member] Retailer Relationships [Member]	Sep. 30, 2011 Maximum [Member] Other [Member]	Sep. 30, 2011 Retailer Relationships [Member]	Dec. 31, 2010 Retailer Relationships [Member]	Sep. 30, 2011 Other [Member]	Dec. 31, 2010 Other [Member]
Goodwill And Other Intangible Assets [Line Items]
Goodwill	$ 267,700,000
Intangible assets, amortization period, years			5	5	6	40
Intangible assets, retailer relationships and other assets							13,344,000	13,344,000	1,890,000	1,890,000
Intangible assets, accumulated amortization							(6,448,000)	(4,606,000)	(1,268,000)	(1,056,000)
Intangible assets, net	$ 7,518,000	$ 9,572,000					$ 6,896,000	$ 8,738,000	$ 622,000	$ 834,000