Revenues from Contracts with Customers - Schedule of Revenues from Contracts with Customers and Our Other Sources of Revenues (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2024	Jun. 30, 2023	Jun. 30, 2024	Jun. 30, 2023
Disaggregation of Revenue
Revenues from contracts with customers	$ 527,326	$ 476,741	$ 977,469	$ 919,141
Revenues	633,375	585,844	1,179,874	1,106,643
Leasing and other commissions
Disaggregation of Revenue
Revenues from contracts with customers	208,557	203,611	367,356	396,917
Revenues	208,557	203,611	367,356	396,917
Investment sales
Disaggregation of Revenue
Revenues from contracts with customers	91,731	77,604	162,554	149,597
Mortgage brokerage and debt placement
Disaggregation of Revenue
Revenues from contracts with customers	28,260	19,330	55,360	36,476
Management services
Disaggregation of Revenue
Revenues from contracts with customers	198,778	176,196	392,199	336,151
Management services | Revision of Prior Period, Adjustment
Disaggregation of Revenue
Revenues from contracts with customers				(4,100)
Fair value of expected net future cash flows from servicing recognized at commitment, net
Disaggregation of Revenue
Other sources of revenue	23,395	23,046	39,539	37,145
Loan originations related fees and sales premiums, net
Disaggregation of Revenue
Other sources of revenue	18,654	21,593	35,353	33,556
Servicing fees and other
Disaggregation of Revenue
Other sources of revenue	$ 64,000	$ 64,464	$ 127,513	116,801
Servicing fees and other | Revision of Prior Period, Adjustment
Disaggregation of Revenue
Other sources of revenue				$ 4,100