Summary of Significant Accounting Policies - Schedule of Revenue by Segment (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2024	Mar. 31, 2023
Revenue from External Customer
Revenues	$ 546,499	$ 520,799
Management services, servicing fees and other
Revenue from External Customer
Revenues	256,934	212,292
Leasing and other commissions
Revenue from External Customer
Revenues	158,799	193,306
Investment sales
Revenue from External Customer
Revenues	70,823	71,993
Commercial mortgage origination, net
Revenue from External Customer
Revenues	$ 59,943	$ 43,208