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Net Change in Operating Accounts (Effect Of Changes In The Operating Accounts On Cash Flows From Operating Activities) (Details) - USD ($)
$ in Thousands
6 Months Ended
Jun. 30, 2015
Jun. 30, 2014
Increase (Decrease) in Operating Capital [Abstract]    
Other assets, net $ 2,793 $ (2,994)
Accounts payable and accrued expenses (18,902) (3,810)
Accrued real estate taxes 4,779 4,616
Other liabilities (2,989) (6,019)
Other 580 489
Change in operating accounts and other $ (13,739) $ (7,718)