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Stock-Based Compensation Plans and Employee Benefits (Tables)
12 Months Ended
Dec. 31, 2013
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]  
Schedule of changes in non-vested restricted stock units
Changes in non-vested restricted stock units during the year ended December 31, 2013 were as follows ($ in thousands, except per share amounts):
 
 
Number
of Shares
 
Weighted Average
Grant Date
Fair Value
Per Share
 
Aggregate
Intrinsic
Value
Non-vested at December 31, 2012
 
5,276

 
$
5.24

 
$
43,000

Granted
 
795

 
$
11.88

 
 
Vested
 
(3,271
)
 
$
6.33

 
 
Forfeited
 
(21
)
 
$
4.94

 
 
Non-vested at December 31, 2013
 
2,779

 
$
5.85

 
$
39,659