PREMISES AND EQUIPMENT, NET (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010
PREMISES AND EQUIPMENT, NET
Premises and equipment, gross	$ 102,247	$ 65,833
Less: Accumulated depreciation and amortization	(51,848)	(40,233)
Total	50,399	25,600
Depreciation and amortization expense, inclusive of capital lease obligations	12,776	8,351	7,158
Computer hardware
PREMISES AND EQUIPMENT, NET
Premises and equipment, gross	68,329	39,452
Office equipment and other
PREMISES AND EQUIPMENT, NET
Premises and equipment, gross	15,592	15,068
Furniture and fixtures
PREMISES AND EQUIPMENT, NET
Premises and equipment, gross	5,344	4,299
Leasehold improvements
PREMISES AND EQUIPMENT, NET
Premises and equipment, gross	$ 12,982	$ 7,014

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.

+ References+ Details

The current period expense charged against earnings on long-lived, physical assets not used in production, and which are not intended for resale, to allocate or recognize the cost of such assets over their useful lives; or to record the reduction in book value of an intangible asset over the benefit period of such asset; or to reflect consumption during the period of an asset that is not used in production.

+ References+ Details

- Definition

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.

+ References+ Details

- 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.

+ References+ Details