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Net Change In Operating Accounts (Tables)
 3 Months Ended
Mar. 31, 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:
 
Three Months Ended
  
March 31,
(in thousands)
2015
 
2014
Change in assets:
 
 
 
Other assets, net
$
5,498

 
$
2,313

Change in liabilities:
 
 
 
Accounts payable and accrued expenses
(14,289
)
 
5,965

Accrued real estate taxes
(15,857
)
 
(13,714
)
Other liabilities
(1,049
)
 
(2,953
)
Other
292

 
243

Change in operating accounts and other
$
(25,405
)
 
$
(8,146
)