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Net Change In Operating Accounts (Tables)
 6 Months Ended
Jun. 30, 2013
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:  
 
Three Months Ended
  
June 30,
(in thousands)
2013
 
2012
Change in assets:
 
 
 
Other assets, net
$
(2,694
)
 
$
(4,884
)
Change in liabilities:
 
 
 
Accounts payable and accrued expenses
(12,485
)
 
(10,120
)
Accrued real estate taxes
7,916

 
8,718

Other liabilities
2,014

 
(9,477
)
Other
521

 
397

Change in operating accounts and other
$
(4,728
)
 
$
(15,366
)