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Earnings per Share and Unit Earnings per Share and Unit (Tables)
9 Months Ended
Sep. 30, 2011
Earnings per Share and Unit [Abstract] 
Schedule of Earnings Per Share, Basic and Diluted [Table Text Block]
Parent Company Earnings per Share
The following summarizes the calculation of basic and diluted earnings per share for the periods ended September 30, 2011 and 2010, respectively (in thousands except per share data): 
 
 
Three months ended
 
Nine months ended
 
 
2011
 
2010
 
2011
 
2010
Numerator:
 
 
 
 
 
 
 
 
Income from continuing operations
$
12,362

 
13,399

$
39,077

 
37,494

Discontinued operations
 
2,179

 
474

 
2,531

 
7,523

Net income
 
14,541

 
13,873

 
41,608

 
45,017

Less: Preferred stock dividends
 
4,919

 
4,919

 
14,756

 
14,756

Less: Noncontrolling interests
 
1,112

 
1,060

 
3,296

 
3,220

Net income attributable to common stockholders
 
8,510

 
7,894

 
23,556

 
27,041

Less: Dividends paid on unvested restricted stock
 
187

 
158

 
560

 
474

Net income attributable to common stockholders - basic
 
8,323

 
7,736

 
22,996

 
26,567

Add: Dividends paid on Treasury Method restricted stock
 
5

 

 
33

 

Net income for common stockholders - diluted
$
8,328

 
7,736

$
23,029

 
26,567

Denominator:
 
 
 
 
 
 
 
 
Weighted average common shares outstanding for basic EPS
 
89,506

 
81,167

 
87,245

 
81,017

Incremental shares to be issued under unvested restricted stock
 
11

 

 
24

 

Incremental shares under Forward Equity Offering
 

 
1,410

 
565

 
1,340

Weighted average common shares outstanding for diluted EPS
 
89,517

 
82,577

 
87,834

 
82,357

Income per common share – basic
 
 
 
 
 
 
 
 
Continuing operations
$
0.07

 
0.09

$
0.23

 
0.24

Discontinued operations
 
0.02

 
0.01

 
0.03

 
0.09

Net income attributable to common stockholders
$
0.09

 
0.10

$
0.26

 
0.33

Income per common share – diluted
 
 
 
 
 
 
 
 
Continuing operations
$
0.07

 
0.09

$
0.23

 
0.23

Discontinued operations
 
0.02

 

 
0.03

 
0.09

Net income attributable to common stockholders
$
0.09

 
0.09

$
0.26

 
0.32