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Goodwill and Intangible Assets - Additional Information (Detail) (USD $) In Thousands, unless otherwise specified	12 Months Ended			0 Months Ended	12 Months Ended		12 Months Ended
	Dec. 31, 2013 Unit	Dec. 31, 2012	Dec. 31, 2011	Oct. 11, 2013 Farmers Citizens Bank [Member]	Dec. 31, 2013 Farmers Citizens Bank [Member]	Dec. 31, 2012 Farmers Citizens Bank [Member]	Dec. 31, 2013 Core Deposit [Member]
Goodwill [Line Items]
Purchase price for performing loan		$ 1,248		$ 41,600	$ 41,574
Goodwill recorded in connection with acquisition	27,194	10,946	10,821		16,248	125
Number of reporting unit	1
Intangible asset							4,834
Amortization expense							251
Net carrying value							$ 4,583

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The aggregate expense charged against earnings to allocate the cost of intangible assets (nonphysical assets not used in production) in a systematic and rational manner to the periods expected to benefit from such assets. As a noncash expense, this element is added back to net income when calculating cash provided by or used in operations using the indirect method.

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Amount of consideration transferred, consisting of acquisition-date fair value of assets transferred by the acquirer, liabilities incurred by the acquirer, and equity interest issued by the acquirer.

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Amount of increase in assets, excluding financial assets, lacking physical substance with a definite life, resulting from a business combination.

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Amount after amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life.

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Amount after accumulated impairment loss of an asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized.

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