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Net Change in Operating Accounts (Tables)
 6 Months Ended
Jun. 30, 2015
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 and other accounts on cash flows from operating activities is as follows:
  
Six Months Ended
June 30,
(in thousands)
2015
 
2014
Change in assets:
 
 
 
Other assets, net
$
2,793

 
$
(2,994
)
Change in liabilities:
 
 
 
Accounts payable and accrued expenses
(18,902
)
 
(3,810
)
Accrued real estate taxes
4,779

 
4,616

Other liabilities
(2,989
)
 
(6,019
)
Other
580

 
489

Change in operating accounts and other
$
(13,739
)
 
$
(7,718
)