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Accrued Interest and Other Assets (Narratives) (Details) - USD ($) $ in Thousands | Sep. 30, 2015 | Dec. 31, 2014 | Dec. 18, 2012
--- | --- | --- | ---
Other assets [Line Items] |  |  |
Prepaid Taxes | $ 9,300 | $ 9,600 |
Mortgage tax credits | 6,277 | 6,277 |
Other Intangible Assets | 2,700 |  |
Repossessed auto | 8,300 | 20,700 |
CoreDepositsMember | Eurobank [Member] |  |  |
Other assets [Line Items] |  |  |
Other Intangible Assets | $ 5,600 | 6,500 |
Customer Relationships [Member] | BBVAPR |  |  |
Other assets [Line Items] |  |  |
Other Intangible Assets |  | $ 3,300 | $ 5,000

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