Goodwill and Other Intangible Assets (Amortization Expenses) (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2015	Sep. 30, 2014	Sep. 30, 2015	Sep. 30, 2014
Finite-Lived Intangible Assets [Line Items]
Amortization of intangible assets	$ 3,308	$ 3,671	$ 9,970	$ 11,366
Less: amortization included in discontinued operations	0	(6)	(44)	(19)
Amortization of intangible assets	3,308	3,665	9,926	11,347
Retailer relationships
Finite-Lived Intangible Assets [Line Items]
Amortization of intangible assets	1,003	1,358	3,009	4,429
Developed technology
Finite-Lived Intangible Assets [Line Items]
Amortization of intangible assets	1,700	1,700	5,100	5,100
Other
Finite-Lived Intangible Assets [Line Items]
Amortization of intangible assets	$ 605	$ 613	$ 1,861	$ 1,837