PREMISES AND EQUIPMENT (Details) (USD $) In Thousands, unless otherwise specified	Dec. 31, 2011	Dec. 31, 2010
Property, Plant and Equipment [Line Items]
Property Plant and Equipment, Gross	$ 176,461	$ 162,143
Less: Accumulated Depreciation	(90,505)	(80,582)
Property Plant and Equipment, Net	85,956	81,561
Land and Land Improvements [Member]
Property, Plant and Equipment [Line Items]
Property Plant and Equipment, Gross	15,069	13,300
Bank Premises Owned [Member]
Property, Plant and Equipment [Line Items]
Property Plant and Equipment, Gross	86,318	76,980
Equipment and Construction in Progress [Member]
Property, Plant and Equipment [Line Items]
Property Plant and Equipment, Gross	$ 75,074	$ 71,863

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, at the balance sheet date, of long-lived physical assets used in the normal conduct of business and not intended for resale. This can include land, buildings, machinery and equipment, and other types of furniture and equipment including, but not limited to, office equipment, furniture and fixtures, and computer equipment and software.

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- Definition

Tangible assets that are held by an entity for use in the production or supply of goods and services, for rental to others, or for administrative purposes and that are expected to provide economic benefit for more than one year; net of accumulated depreciation. Examples include land, buildings, machinery and equipment, and other types of furniture and equipment including, but not limited to, office equipment, furniture and fixtures, and computer equipment and software.

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