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Share Based and Deferred Compensation (Tables)
 6 Months Ended
Jun. 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
(94,429
)
 
$
2.91

 
—

 
—

Canceled
(21,706
)
 
$
15.62

 
 
 
 
Outstanding at June 30, 2012
3,483,537

 
$
14.47

 
6.46

 
$
(8,656,997
)
Vested/Exercisable at June 30, 2012
2,811,754

 
$
15.56

 
6.33

 
$
(9,052,503
)
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
(5,806
)
 
11.32

Non-vested at June 30, 2012
636,286

 
$
12.61