v3.7.0.1
Loans to Bank Customers Troubled Debt Restructurings (Details) - USD ($)
$ in Thousands
Mar. 31, 2017
Dec. 31, 2016
Residential Portfolio Segment [Member]    
Financing Receivable, Impaired [Line Items]    
Impaired financing receivable, unpaid principal balance $ 377 $ 388
Financing receivable, modifications, recorded investment 307 316
Consumer Portfolio Segment [Member]    
Financing Receivable, Impaired [Line Items]    
Impaired financing receivable, unpaid principal balance 209 220
Financing receivable, modifications, recorded investment $ 93 $ 98