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
	Mar. 31, 2024	Mar. 31, 2023
Disaggregation of Revenue
Revenues from contracts with customers	$ 450,159	$ 442,401
Revenues	546,499	520,799
Leasing and other commissions
Disaggregation of Revenue
Revenues from contracts with customers	158,799	193,306
Revenues	158,799	193,306
Investment sales
Disaggregation of Revenue
Revenues from contracts with customers	70,823	71,993
Revenues	70,823	71,993
Mortgage brokerage and debt placement
Disaggregation of Revenue
Revenues from contracts with customers	27,100	17,146
Management services
Disaggregation of Revenue
Revenues from contracts with customers	193,437	159,956
Management services | Revision of Prior Period, Adjustment
Disaggregation of Revenue
Revenues from contracts with customers		(2,100)
Fair value of expected net future cash flows from servicing recognized at commitment, net
Disaggregation of Revenue
Other sources of revenue	16,144	14,099
Loan originations related fees and sales premiums, net
Disaggregation of Revenue
Other sources of revenue	16,699	11,963
Servicing fees and other
Disaggregation of Revenue
Other sources of revenue	$ 63,497	52,336
Servicing fees and other | Revision of Prior Period, Adjustment
Disaggregation of Revenue
Other sources of revenue		$ 2,100