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..Redeemable Noncontrolling Interests in Operating Partnership (Allocated Redeemable Noncontrolling Interests) (Details) - USD ($)
$ in Thousands
3 Months Ended 6 Months Ended
Jun. 30, 2021
Jun. 30, 2020
Jun. 30, 2021
Jun. 30, 2020
Noncontrolling Interest [Abstract]        
Net (income) loss attributable to redeemable noncontrolling interests in operating partnership $ 1,282 $ 5,770 $ 2,361 $ 7,655