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Goodwill and Other Intangible Assets - Schedule of Other Intangible Assets (Detail) - USD ($) $ in Thousands | Sep. 30, 2015 | Dec. 31, 2014
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Finite-Lived Intangible Assets [Line Items] |  |
Other intangible assets, net | $ 9,566 | $ 12,125
Core deposits [Member] |  |
Finite-Lived Intangible Assets [Line Items] |  |
Other intangible assets, net | 7,675 | 9,675
Customer relationships [Member] |  |
Finite-Lived Intangible Assets [Line Items] |  |
Other intangible assets, net | 1,693 | 2,128
Non-compete agreements [Member] |  |
Finite-Lived Intangible Assets [Line Items] |  |
Other intangible assets, net | $ 198 | $ 322

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- Definition Sum of the carrying amounts of all intangible assets, excluding goodwill, as of the balance sheet date, net of accumulated amortization and impairment charges. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 45 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6388964&loc=d3e16212-109274 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 2 -Subparagraph ((a)(1),(b)) -URI http://asc.fasb.org/extlink&oid=26713463&loc=d3e16323-109275 + Details
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