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 |