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Net Change In Operating Accounts
 12 Months Ended
Dec. 31, 2017
Increase (Decrease) in Operating Capital [Abstract]  
Net Change In Operating Accounts
13. Net Change in Operating Accounts
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)
2017
 
2016
 
2015
Change in assets:
 
 
 
 
 
Other assets, net
$
(6,724
)
 
$
(3,551
)
 
$
(1,687
)
Change in liabilities:
 
 
 
 
 
Accounts payable and accrued expenses
(2,300
)
 
(2,309
)
 
(15,478
)
Accrued real estate taxes
2,342

 
5,526

 
6,386

Other liabilities
(995
)
 
(2,361
)
 
2,245

Other
2,831

 
2,976

 
2,773

Change in operating accounts and other
$
(4,846
)
 
$
281

 
$
(5,761
)