Goodwill and Other Intangible Assets (Amortization Expenses) (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2016	Mar. 31, 2015
Finite-Lived Intangible Assets [Line Items]
Amortization of intangible assets	$ 3,790	$ 3,353
Less: amortization included in discontinued operations	0	(44)
Amortization of intangible assets	3,790	3,309
Retailer relationships
Finite-Lived Intangible Assets [Line Items]
Amortization of intangible assets	1,003	1,003
Developed technology
Finite-Lived Intangible Assets [Line Items]
Amortization of intangible assets	1,866	1,700
Trade names
Finite-Lived Intangible Assets [Line Items]
Amortization of intangible assets	650	300
Other
Finite-Lived Intangible Assets [Line Items]
Amortization of intangible assets	$ 271	$ 350