Premises and Equipment (Detail) (USD $) In Thousands, unless otherwise specified	Dec. 31, 2012	Dec. 31, 2011
Property, Plant and Equipment [Line Items]
Premises and Equipment	$ 52,378	$ 50,377
Accumulated depreciation and amortization	(20,138)	(18,352)
Premises and Equipment, net	32,240	32,025
Land
Property, Plant and Equipment [Line Items]
Premises and Equipment	12,842	12,838
Buildings and land improvements
Property, Plant and Equipment [Line Items]
Premises and Equipment	25,910	25,070
Equipment
Property, Plant and Equipment [Line Items]
Premises and Equipment	$ 13,626	$ 12,469

The cumulative amount of depreciation, depletion and amortization (related to property, plant and equipment, but not including land) that has been recognized in the income statement.

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Gross amount of long-lived physical assets used in the normal conduct of business and not intended for resale. Examples include, but are not limited to, land, buildings, machinery and equipment, office equipment, furniture and fixtures, and computer equipment.

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- Definition

Amount, net of accumulated depreciation, depletion and amortization, of long-lived physical assets used in the normal conduct of business and not intended for resale. Examples include, but are not limited to, land, buildings, machinery and equipment, office equipment, furniture and fixtures, and computer equipment.

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