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Premises and Equipment
12 Months Ended
Dec. 31, 2012
Property, Plant and Equipment [Abstract]  
Premises and Equipment
Premises and Equipment
Premises and equipment at December 31, 2012 and 2011 consisted of the following:
 
 
December 31,
(Dollars in thousands)
 
2012
 
2011
Computer software
 
$
108,415

 
$
90,632

Computer hardware
 
42,147

 
37,717

Leasehold improvements
 
36,907

 
32,604

Furniture and equipment
 
17,431

 
14,088

Total
 
204,900

 
175,041

Accumulated depreciation and amortization
 
(138,355
)
 
(118,570
)
Premises and equipment, net
 
$
66,545

 
$
56,471


Depreciation and amortization expense for premises and equipment was $23.7 million, $17.7 million, and $14.1 million in 2012, 2011 and 2010, respectively. Additionally, in 2012 we wrote-off $4.0 million in certain assets, primarily computer software.