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Stock Incentive Plan (Tables)
 12 Months Ended
Dec. 31, 2011
Stock Incentive Plan [Abstract]  
Schedule of Share-based Compensation, Stock Options, Activity
The Company has not issued any stock options under its stock incentive plan since 2004. All outstanding options are vested and exercisable. The following table summarizes stock option information:

 
2011
 
2010
 
2009
 
Shares
 
Price(1)
 
Shares
 
Price(1)
 
Shares
 
Price(1)
Outstanding at beginning of year
3,503,384

 
$
10.42

 
5,700,552

 
$
9.53

 
6,566,377

 
$
9.06

Exercised
2,185,952

 
10.05

 
2,191,260

 
8.11

 
860,074

 
5.93

Cancelled
3,375

 
10.07

 
5,908

 
10.07

 
5,751

 
10.85

Outstanding at year end
1,314,057

 
$
11.04

 
3,503,384

 
$
10.42

 
5,700,552

 
$
9.53

_______________________________________
(1)
Weighted average exercise price.
Schedule of Share-based Compensation, Shares Authorized under Stock Option Plans, by Exercise Price Range
The following table summarizes information about stock options outstanding at December 31, 2011:
 
Options Outstanding and Exercisable
Range of
Exercise
Prices
Number Outstanding
 
Weighted Remaining Contractual Life (in years)
 
Weighted Average Price
$0 to $10.00
412,078

 
0.60

 
$
10.07

$10.01 to $17.62
901,979

 
0.32

 
11.48

Total
1,314,057

 
0.41

 
$
11.04
Schedule of Nonvested Restricted Stock Units Activity
The following table summarizes RSU information for the three years ended December 31, 2011:
(Dollars in thousands)
2011
 
2010
 
2009
RSUs granted and unvested at beginning of period:
4,945,375

 
3,713,025

 
4,971,231

Granted
107,500

 
2,310,650

 
119,500

Vested
(576,050
)
 
(916,750
)
 
(1,287,943
)
Cancelled
(105,850
)
 
(161,550
)
 
(89,763
)
RSUs granted and unvested at end of period:
4,370,975

 
4,945,375

 
3,713,025
Schedule of Share-based Compensation, Unearned Compensation Related to RSU's
The fair value of RSUs at the date of grant are recorded as unearned compensation, a component of stockholders’ equity, and expensed over the vesting period. Following is a summary of changes in unearned compensation for the three years ended December 31, 2011:
(Dollars in thousands)
2011
 
2010
 
2009
Unearned compensation at beginning of year
$
76,139

 
$
46,801

 
$
68,503

RSUs granted, net of cancellations
2,832

 
58,462

 
2,783

RSUs expensed
(27,566
)
 
(27,035
)
 
(24,988
)
RSUs forfeiture adjustment
5,910

 
(2,089
)
 
503

Unearned compensation at end of year
$
57,315

 
$
76,139

 
$
46,801