LOAN SALES AND SECURITIZATIONS - Residential Mortgage Portfolio, MSRs Fair Value Method Assumptions (Details) |
12 Months Ended | |
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Dec. 31, 2017 |
Dec. 31, 2016 |
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| Residential Mortgage | Sensitivity Analysis Fair Value Carrying Method | ||
| Sensitivity Analysis of Fair Value of Interests Continued to be Held by Transferor, Servicing Assets or Liabilities, Impact of Adverse Change in Assumption [Line Items] | ||
| Spread over forward interest rate swap rates | 0.00% | 5.00% |
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- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. No definition available.
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- Definition Discount rate used to estimate the fair value of servicing assets and servicing liabilities. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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