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Net Change in Operating Accounts (Tables)
 6 Months Ended
Jun. 30, 2018
Increase (Decrease) in Operating Capital [Abstract]  
Effect Of Changes In The Operating And Other 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)
2018
 
2017
Change in assets:
 
 
 
Other assets, net
$
2,280

 
$
(1,819
)
Change in liabilities:
 
 
 
Accounts payable and accrued expenses
(10,409
)
 
(15,453
)
Accrued real estate taxes
922

 
(482
)
Other liabilities
2,733

 
5,518

Other
1,403

 
1,439

Change in operating accounts and other
$
(3,071
)
 
$
(10,797
)