Segment Reporting - Balance Sheet Data (Details) - USD ($) $ in Thousands	Dec. 31, 2015	Dec. 31, 2014
Segment Reporting, Asset Reconciling Item [Line Items]
Discontinued operation		$ 5,862
Total assets	$ 280,353	266,010
Operating Segments
Segment Reporting, Asset Reconciling Item [Line Items]
Total assets	280,353	260,148
Operating Segments | U.S. Debit and Credit
Segment Reporting, Asset Reconciling Item [Line Items]
Total assets	221,274	199,968
Operating Segments | U.S. Prepaid Debit
Segment Reporting, Asset Reconciling Item [Line Items]
Total assets	20,960	19,395
Operating Segments | U.K. Limited
Segment Reporting, Asset Reconciling Item [Line Items]
Total assets	25,897	29,167
Operating Segments | Other
Segment Reporting, Asset Reconciling Item [Line Items]
Total assets	$ 12,222	$ 11,618