Goodwill and Other Intangible Assets Other Intangible Assets (Details) - USD ($) $ in Thousands	Mar. 31, 2016	Dec. 31, 2015
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Value, Intangible Assets	$ 141,728	$ 138,566
Accumulated Amortization, Intangible Assets	108,959	102,083
Net Carrying Value, Intangible Assets	32,769	36,483
Customer Relationships [Member]
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Value, Intangible Assets	53,614	52,204
Accumulated Amortization, Intangible Assets	46,227	43,725
Net Carrying Value, Intangible Assets	7,387	8,479
Merchant relationships [Member]
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Value, Intangible Assets	9,903	9,648
Accumulated Amortization, Intangible Assets	8,463	8,064
Net Carrying Value, Intangible Assets	1,440	1,584
Trade names [Member]
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Value, Intangible Assets	11,213	11,013
Accumulated Amortization, Intangible Assets	7,862	7,396
Net Carrying Value, Intangible Assets	3,351	3,617
Developed Technology [Member]
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Value, Intangible Assets	37,460	37,103
Accumulated Amortization, Intangible Assets	27,374	25,436
Net Carrying Value, Intangible Assets	10,086	11,667
Brand Relationships [Member]
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Value, Intangible Assets	7,960	7,960
Accumulated Amortization, Intangible Assets	3,471	3,073
Net Carrying Value, Intangible Assets	4,489	4,887
Other Intangible Assets [Member]
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Value, Intangible Assets	21,578	20,638
Accumulated Amortization, Intangible Assets	15,562	14,389
Net Carrying Value, Intangible Assets	$ 6,016	$ 6,249