Goodwill and Intangibles - Summary of Other Intangible Assets (Detail) (USD $) In Thousands, unless otherwise specified	Jun. 30, 2014	Dec. 31, 2013
Finite-Lived Intangible Assets [Line Items]
Gross Intangible Assets	$ 11,039	$ 10,995
Accumulated Amortization	(4,845)	(4,252)
Net Intangible Assets	6,194	6,743
Core Deposits [Member]
Finite-Lived Intangible Assets [Line Items]
Gross Intangible Assets	4,370	4,370
Accumulated Amortization	(2,878)	(2,605)
Net Intangible Assets	1,492	1,765
Other Intangible Assets [Member]
Finite-Lived Intangible Assets [Line Items]
Gross Intangible Assets	6,669	6,625
Accumulated Amortization	(1,967)	(1,647)
Net Intangible Assets	$ 4,702	$ 4,978