Quarterly report pursuant to Section 13 or 15(d)

Earnings per Common Share (Computation of Basic and Diluted Earnings per Share) (Details)

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Earnings per Common Share (Computation of Basic and Diluted Earnings per Share) (Details) (USD $)
In Thousands, except Per Share data, unless otherwise specified
3 Months Ended 6 Months Ended
Jun. 30, 2012
Jun. 30, 2011
Jun. 30, 2012
Jun. 30, 2011
Earnings Per Share [Abstract]        
Debt instrument, interest rate, stated percentage 3.875%   3.875%  
Income from continuing operations $ 6,008 $ 4,431 $ 11,189 $ 6,550
Allocation of undistributed earnings to unvested restricted share awards (176) (26) (363) (49)
Adjusted income from continuing operations attributable to the controlling interests 5,832 4,405 10,826 6,501
Income from discontinued operations, including gain on sale of real estate, net of taxes 0 2,125 0 4,694
Less: Net income attributable to noncontrolling interests 0 (34) 0 (57)
Allocation of undistributed earnings to unvested restricted share awards 0 (12) 0 (34)
Adjusted income from discontinuing operations attributable to the controlling interests 0 2,079 0 4,603
Adjusted net income attributable to the controlling interests $ 5,832 $ 6,484 $ 10,826 $ 11,104
Weighted average shares outstanding - basic 66,241 65,954 66,218 65,920
Effect of dilutive securities: Operating partnership units 117 0 117 0
Effect of dilutive securities: Employee stock options and restricted share awards 22 35 19 28
Weighted average shares outstanding - diluted 66,380 65,989 66,354 65,948
Earnings per common share, basic, Continuing operations $ 0.09 $ 0.07 $ 0.16 $ 0.10
Earnings per common share, basic, Discontinued operations $ 0.00 $ 0.03 $ 0.00 $ 0.07
Basic earnings: Adjusted net income attributable to the controlling interests - Per Share Amount $ 0.09 $ 0.10 $ 0.16 $ 0.17
Earnings per common share, diluted, Continuing operations $ 0.09 $ 0.07 $ 0.16 $ 0.10
Earnings per common share, diluted, Discontinued operations $ 0.00 $ 0.03 $ 0.00 $ 0.07
Diluted earnings: Adjusted net income attributable to the controlling interests - Per Share Amount $ 0.09 $ 0.10 $ 0.16 $ 0.17