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Components of Other Intangible Assets, by Reporting Unit (Detail) - USD ($) $ in Thousands | Dec. 31, 2015 | Dec. 31, 2014
--- | --- | ---
Finite-Lived Intangible Assets [Line Items] |  |
Finite lived intangibles, net | $ 5,200 |
Total other intangible assets, net | 5,243 | $ 6,421
Core deposit intangible assets |  |
Finite-Lived Intangible Assets [Line Items] |  |
Core deposit intangibles | 12,282 | 12,282
Accumulated amortization | (7,958) | (7,148)
Finite lived intangibles, net | 4,324 | 5,134
Other Intangible Assets |  |
Finite-Lived Intangible Assets [Line Items] |  |
Core deposit intangibles | 4,246 | 4,246
Accumulated amortization | (3,327) | (2,959)
Finite lived intangibles, net | 919 | 1,287
Community Banking |  |
Finite-Lived Intangible Assets [Line Items] |  |
Total other intangible assets, net | 4,395 | 5,232
Community Banking | Core deposit intangible assets |  |
Finite-Lived Intangible Assets [Line Items] |  |
Core deposit intangibles | 12,282 | 12,282
Accumulated amortization | (7,958) | (7,148)
Finite lived intangibles, net | 4,324 | 5,134
Community Banking | Other Intangible Assets |  |
Finite-Lived Intangible Assets [Line Items] |  |
Core deposit intangibles | 535 | 535
Accumulated amortization | (464) | (437)
Finite lived intangibles, net | 71 | 98
Insurance Services |  |
Finite-Lived Intangible Assets [Line Items] |  |
Total other intangible assets, net | 848 | 1,189
Insurance Services | Other Intangible Assets |  |
Finite-Lived Intangible Assets [Line Items] |  |
Core deposit intangibles | 3,711 | 3,711
Accumulated amortization | (2,863) | (2,522)
Finite lived intangibles, net | $ 848 | $ 1,189

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- Definition Accumulated amount of amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 2 -Subparagraph (a)(1) -URI http://asc.fasb.org/extlink&oid=26713463&loc=d3e16323-109275 + Details
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- Definition Amount before amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 2 -Subparagraph (a)(1) -URI http://asc.fasb.org/extlink&oid=26713463&loc=d3e16323-109275 + Details
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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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