Segment Reporting - Segment Assets (Details) - USD ($) $ in Thousands		Sep. 30, 2020	Dec. 31, 2019
Assets
Total assets	[1]	$ 14,189,510	$ 14,060,918
Real Estate
Assets
Total assets		14,072,029	13,811,403
Investment Management
Assets
Total assets		$ 117,481	$ 249,515

[1] See Note 2 for details related to variable interest entities (“VIEs”).