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Goodwill (Tables) | 12 Months Ended
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Dec. 31, 2015
Finite-Lived Intangible Assets [Line Items] |
Schedule of Indefinite-Lived Intangible Assets [Table Text Block] | The following table reflects the activity in goodwill and other intangible assets for the years ended December 31, 2015, 2014 and 2013.
(In thousands) |  | Goodwill |  | Core Deposit Intangibles |  | Total
January 1, 2013 |  | $ | 72,334 |  |  | $ | 337 |  |  | $ | 72,671 |
Amortization |  | — |  |  | (337 | ) |  | (337 | )
December 31, 2013 |  | $ | 72,334 |  |  | $ | — |  |  | $ | 72,334 |
Amortization |  | — |  |  | — |  |  | — |
December 31, 2014 |  | $ | 72,334 |  |  | $ | — |  |  | $ | 72,334 |
Amortization |  | — |  |  | — |  |  | — |
December 31, 2015 |  | $ | 72,334 |  |  | $ | — |  |  | $ | 72,334 |

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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. + References No definition available. + Details
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- Definition Tabular disclosure of goodwill and intangible assets, which may be broken down by segment or major class. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 20 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=35741047&loc=d3e13816-109267 + Details
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