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Accrued Interest and Other Assets (Narratives) (Details) - USD ($) $ in Thousands | Sep. 30, 2017 | Dec. 31, 2016
--- | --- | ---
Other assets [Line Items] |  |
Other prepaid expenses | $ 13,070 | $ 17,096
Prepaid Taxes | 7,500 | 12,500
Core deposit intangible | 3,600 | 4,300
Other repossessed assets | 3,829 | 3,224
Repossessed auto | 3,600 | 3,000
Mortgage tax credits | 4,277 | 6,277
Customer Relationships Intangible [Member] |  |
Other assets [Line Items] |  |
Core deposit intangible | $ 1,500 | $ 1,900

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