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Net Change In Operating Accounts (Tables)
 12 Months Ended
Dec. 31, 2016
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)
2016
 
2015
 
2014
Change in assets:
 
 
 
 
 
Other assets, net
$
(3,551
)
 
$
(1,687
)
 
$
(1,951
)
Change in liabilities:
 
 
 
 
 
Accounts payable and accrued expenses
(2,309
)
 
(15,478
)
 
19,342

Accrued real estate taxes
5,526

 
6,386

 
4,025

Other liabilities
(2,361
)
 
2,245

 
(1,701
)
Other
2,976

 
2,773

 
2,583

Change in operating accounts and other
$
281

 
$
(5,761
)
 
$
22,298