Annual report pursuant to Section 13 and 15(d)

Share-Based Compensation and Employee Benefit Plans (Details 3)

v2.4.0.6
Share-Based Compensation and Employee Benefit Plans (Details 3) (USD $)
In Thousands, unless otherwise specified
12 Months Ended
Dec. 31, 2012
Dec. 31, 2011
Dec. 31, 2010
Share-Based Compensation      
Share-based compensation expense $ 11,184 $ 14,267 $ 11,845
General, adminstrative and leasing expenses
     
Share-Based Compensation      
Share-based compensation expense 8,611 9,077 7,511
Property operating expenses
     
Share-Based Compensation      
Share-based compensation expense 1,371 2,843 2,543
Capitalized to development activities
     
Share-Based Compensation      
Share-based compensation expense $ 1,202 $ 2,347 $ 1,791