Premises And Equipment - Major Categories of Premises and Equipment (Details) (USD $) In Thousands, unless otherwise specified	Dec. 31, 2012	Dec. 31, 2011
Property, Plant and Equipment [Line Items]
Premises and Equipment, Gross	$ 152,133	$ 151,161
Less accumulated depreciation	(98,382)	(97,420)
Premises and Equipment, Net	53,751	53,741
Land
Property, Plant and Equipment [Line Items]
Premises and Equipment, Gross	17,354	18,151
Buildings
Property, Plant and Equipment [Line Items]
Premises and Equipment, Gross	69,091	69,690
Equipment, furniture and fixtures
Property, Plant and Equipment [Line Items]
Premises and Equipment, Gross	61,679	59,037
Leasehold improvements
Property, Plant and Equipment [Line Items]
Premises and Equipment, Gross	$ 4,009	$ 4,283

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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