Goodwill And Other Intangible Assets (Gross Amount Of Other Intangible Assets And The Related Accumulated Amortization) (Details) (USD $) In Thousands, unless otherwise specified	9 Months Ended
	Sep. 30, 2013	Dec. 31, 2012
Finite-Lived Intangible Assets [Line Items]
Intangible assets, net	$ 83,307	$ 48,969
Retailer Relationships [Member]
Finite-Lived Intangible Assets [Line Items]
Intangible assets, gross	53,344	53,344
Intangible assets, accumulated amortization	(16,231)	(11,518)
Intangible assets, net	37,113	41,826
Developed Technology [Member]
Finite-Lived Intangible Assets [Line Items]
Intangible assets, amortization period, years	5 years
Intangible assets, gross	34,000	0
Intangible assets, accumulated amortization	(1,133)	0
Intangible assets, net	32,867	0
Other [Member]
Finite-Lived Intangible Assets [Line Items]
Intangible assets, gross	16,827	9,404
Intangible assets, accumulated amortization	(3,500)	(2,261)
Intangible assets, net	$ 13,327	$ 7,143
Minimum [Member] | Retailer Relationships [Member]
Finite-Lived Intangible Assets [Line Items]
Intangible assets, amortization period, years	5 years
Minimum [Member] | Other [Member]
Finite-Lived Intangible Assets [Line Items]
Intangible assets, amortization period, years	1 year
Maximum [Member] | Retailer Relationships [Member]
Finite-Lived Intangible Assets [Line Items]
Intangible assets, amortization period, years	10 years
Maximum [Member] | Other [Member]
Finite-Lived Intangible Assets [Line Items]
Intangible assets, amortization period, years	40 years