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..Redeemable Noncontrolling Interests in Operating Partnership (Allocated Redeemable Noncontrolling Interests) (Details) - USD ($)
$ in Thousands
3 Months Ended 9 Months Ended
Sep. 30, 2021
Sep. 30, 2020
Sep. 30, 2021
Sep. 30, 2020
Noncontrolling Interest [Abstract]        
Net (income) loss attributable to redeemable noncontrolling interests in operating partnership $ 823 $ 2,381 $ 3,184 $ 10,036