Goodwill and Other Intangible Assets (Amortization Expenses) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Finite-Lived Intangible Assets [Line Items]
Amortization of intangible assets including discontinued operations	$ 13,594	$ 14,692	$ 10,933
Less: amortization included in discontinued operations	(44)	(38)	(26)
Amortization of intangible assets	13,550	14,654	10,907
Retailer relationships
Finite-Lived Intangible Assets [Line Items]
Amortization of intangible assets including discontinued operations	4,012	5,432	6,250
Developed technology
Finite-Lived Intangible Assets [Line Items]
Amortization of intangible assets including discontinued operations	6,911	6,800	2,833
Trade names
Finite-Lived Intangible Assets [Line Items]
Amortization of intangible assets including discontinued operations	1,433	1,200	500
Other intangible assets
Finite-Lived Intangible Assets [Line Items]
Amortization of intangible assets including discontinued operations	$ 1,238	$ 1,260	$ 1,350