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Stock-Based Compensation (Tables)
9 Months Ended
Sep. 30, 2011
Disclosure of Compensation Related Costs, Share-based Payments [Abstract] 
Schedule of Share-based Payment Award, Stock Options, Valuation Assumptions [Table Text Block]
The following table sets out the weighted average assumptions used to estimate the fair value of the options and SSARs granted using the Black-Scholes option-pricing model in the first nine months of the respective years noted:
 
 
2011
 
2010
Expected stock price volatility
63.9%
 
59.5%
Expected dividend yield
—%
 
—%
Risk-free interest rate
2.1%
 
2.4%
Expected life of options
5.16
 
5.13
Weighted average fair value of options and SSARs granted
$5.62
 
$3.73
Schedule of Share-based Compensation, Stock Options, Activity [Table Text Block]
The following table summarizes stock options and SSARs outstanding as of September 30, 2011, as well as activity during the nine month period then ended.
Share amounts in thousands
Options and
SSARs
 
Weighted Average
Exercise Price
 
Weighted
Average
Contractual
Term (in years)
 
Aggregate Intrinsic
Value (in millions)
Options / SSARs outstanding at January 1, 2011
7,580

 
$
13.10

 
 
 
 
SSARs granted
813

 
10.12

 
 
 
 
Options / SSARs exercised
(18
)
 
4.93

 
 
 
 
Options /SSARs cancelled
(58
)
 
14.82

 
 
 
 
Options/SSARs outstanding at September 30, 2011
8,317

 
$
12.81

 
6.5

 
$
5.2

Vested and expected to vest at September 30, 2011
7,901

 

 

 
$
4.9

Options/SSARS exercisable at September 30, 2011
6,144

 
$
14.94

 

 
$
3.4

Schedule of Share-based Compensation, Restricted Stock and Restricted Stock Units Activity [Table Text Block]
The following table summarizes incentive share awards outstanding as of September 30, 2011 as well as activity during the nine months then ended.
 
Shares
 
Weighted
Average
Contractual Term
(in years)
 
Aggregate
Intrinsic Value
(in millions)
Incentive share awards outstanding at January 1, 2011
955,936

 
 
 
 
Incentive share awards granted
303,816

 
 
 
 
Incentive share awards vested
(121,500
)
 
 
 
 
Incentive share awards cancelled
(41,314
)
 
 
 
 
Incentive shares outstanding at September 30, 2011
1,096,938

 
1.25

 
$
5.6

Vested and expected to vest at September 30, 2011
1,042,091

 
1.25

 
$
5.3

Incentive share awards exercisable at September 30, 2011

 

 

Restricted Stock Activity [Table Text Block]
The following table summarizes the restricted stock outstanding as of September 30, 2011 as well as activity during the nine months then ended.
 
Nine Months ended September 30, 2011
 
Number of Shares
 
Weighted Average
Grant Date
Fair Value
Restricted stock awards outstanding at January 1, 2011
783,289

 
$
6.31

Restricted stock awards granted
139,239

 
10.30

Restrictions lapsing
(171,800
)
 
15.27

Restricted stock awards at September 30, 2011
750,728

 
$
5.00