Revenues from Contracts with Customers - Schedule of Revenues from Contracts with Customers and Our Other Sources of Revenues (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2025	Dec. 31, 2024	Dec. 31, 2023
Disaggregation of Revenue
Revenues from contracts with customers:	$ 2,770,302	$ 2,272,989	$ 2,072,839
Total	3,294,024	2,738,502	2,470,368
Leasing and Other Commissions
Disaggregation of Revenue
Revenues from contracts with customers:	1,002,562	857,617	839,595
Total	1,002,562	857,617	839,595
Investment sales
Disaggregation of Revenue
Revenues from contracts with customers:	559,392	417,684	381,276
Mortgage brokerage and debt placement
Disaggregation of Revenue
Revenues from contracts with customers:	254,250	164,686	126,934
Management Services
Disaggregation of Revenue
Revenues from contracts with customers:	954,098	833,002	725,034
Fair value of expected net future cash flows from servicing recognized at commitment, net
Disaggregation of Revenue
Other sources of revenue	122,833	100,171	82,082
Loan originations related fees and sales premiums, net
Disaggregation of Revenue
Other sources of revenue	110,754	91,645	69,604
Servicing fees and other
Disaggregation of Revenue
Other sources of revenue	$ 290,135	$ 273,697	$ 245,843