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Net Change In Operating Accounts (Tables)
 12 Months Ended
Dec. 31, 2014
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:
 
 
Year Ended December 31,
(in thousands)
2014
 
2013
 
2012
Change in assets:
 
 
 
 
 
Other assets, net
$
(2,145
)
 
$
(2,639
)
 
$
(2,443
)
Change in liabilities:
 
 
 
 
 
Accounts payable and accrued expenses
19,296

 
(8,138
)
 
2,320

Accrued real estate taxes
4,009

 
7,165

 
5,640

Other liabilities
(1,666
)
 
22,139

 
(16,192
)
Other
940

 
1,051

 
816

Change in operating accounts and other
$
20,434

 
$
19,578

 
$
(9,859
)