Intangible Assets - Definite-lived (Details) - USD ($) $ in Thousands	Sep. 30, 2016	Dec. 31, 2015
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	$ 384,369	$ 379,958
Accumulated Amortization	(256,266)	(231,494)
Net Carrying Amount	128,103	148,464
Customer and Bank Branding Contracts / Relationships
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	353,509	350,211
Accumulated Amortization	(241,930)	(219,498)
Net Carrying Amount	111,579	130,713
Deferred Financing Costs | Revolving Credit Facility
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	3,625	2,896
Accumulated Amortization	(2,141)	(1,452)
Net Carrying Amount	1,484	1,444
Non-Compete Agreements
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	4,395	4,454
Accumulated Amortization	(4,061)	(3,935)
Net Carrying Amount	334	519
Technology
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	10,701	10,751
Accumulated Amortization	(4,589)	(3,750)
Net Carrying Amount	6,112	7,001
Trade Name
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	12,139	11,646
Accumulated Amortization	(3,545)	(2,859)
Net Carrying Amount	$ 8,594	$ 8,787