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Net Income (Loss) Per Share (Tables)
 12 Months Ended
Dec. 31, 2011
Net Income (Loss) Per Share [Abstract]  
Schedule of Earnings Per Share, Basic and Diluted [Table Text Block]
The computation of the Company's basic and diluted net income (loss) per share is as follows:
 
Year Ended December 31,
 
2011
 
2010
 
2009
 
(In thousands, except per share data)
Numerator for basic and diluted income (loss) per common share:
 
 
 
 
 
Net income (loss)
$
75,192

 
$
(2,788
)
 
$
31,409

Less: Series A preferred stock dividends
—

 
(25,927
)
 
(19,531
)
Less: Accretion of Series B preferred stock
(2,573
)
 
(2,432
)
 
(2,291
)
Less: Net (income) loss allocated to unvested participating restricted stock
(1,886
)
 
1,173

 
(351
)
Net income (loss) available to common stockholders - basic
70,733

 
(29,974
)
 
9,236

     Effect of unvested participating restricted stock
34

 
—

 
—

     Effect of dilutive securities:
 
 
 
 
 
        Convertible Series B preferred stock
—

 
—

 
—

Numerator - net income available to common shareholders - diluted
$
70,767

 
$
(29,974
)
 
$
9,236

Denominator:
 
 
 
 
 
Weighted average outstanding shares of common stock - basic
17,846

 
17,240

 
16,917

     Effect of dilutive securities:
 
 
 
 
 
   Stock options
339

 
—

 
—

   Convertible Series B preferred stock
—

 
—

 
—

Weighted average outstanding shares of common stock - diluted
18,185

 
17,240

 
16,917

Net income (loss) per common share:
 
 
 
 
 
Basic
$
3.96

 
$
(1.74
)
 
$
0.55

Diluted
$
3.89

 
$
(1.74
)
 
$
0.55