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Share Based and Deferred Compensation (Tables)
 9 Months Ended
Sep. 30, 2012
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]  
Option activity
 
Shares
 
Weighted
Average
Exercise Price
 
Weighted Average
Remaining Contractual
Term (in years)
 
Aggregate Intrinsic
Value
Outstanding at January 1, 2012
3,599,672

 
$
14.50

 
7.20

 
$
(18,015,060
)
Granted
—

 
—

 
—

 
—

Exercised
(165,159
)
 
$
4.53

 
—

 
—

Canceled
(31,829
)
 
$
14.33

 
 
 
 
Outstanding at September 30, 2012
3,402,684

 
$
14.64

 
6.20

 
$
(9,559,637
)
Vested/Exercisable at September 30, 2012
2,735,766

 
$
15.80

 
6.09

 
$
(9,857,702
)
Company's restricted share activity
 
Shares
 
Weighted
Average Grant
Date Fair value
Non-vested at January 1, 2012
807,291

 
$
9.46

Granted
228,777

 
10.91

Vested
(393,976
)
 
5.91

Forfeited
(10,238
)
 
11.49

Non-vested at September 30, 2012
631,854

 
$
12.61