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Net Change In Operating Accounts (Tables)
 9 Months Ended
Sep. 30, 2012
Increase (Decrease) in Operating Capital [Abstract]  
Effect Of Changes In The Operating Accounts On Cash Flows From Operating Activities
The effect of changes in the operating accounts and other on cash flows from operating activities is as follows:  
 
Nine Months Ended
  
September 30,
(in thousands)
2012
 
2011
Change in assets:
 
 
 
Other assets, net
$
(8,765
)
 
$
3,046

Change in liabilities:
 
 
 
Accounts payable and accrued expenses
11,759

 
11,343

Accrued real estate taxes
20,230

 
15,048

Other liabilities
(16,322
)
 
(13,131
)
Other
599

 
401

Change in operating accounts and other
$
7,501

 
$
16,707