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		9 Months Ended
	Sep. 30, 2022	Sep. 30, 2021	Sep. 30, 2022	Sep. 30, 2021
Disaggregation of Revenue
Revenues from contracts with customers:	$ 557,257	$ 682,165	$ 1,793,206	$ 1,646,083
Revenues	664,646	788,125	2,098,245	1,921,977
Fair value of expected net future cash flows from servicing recognized at commitment, net
Disaggregation of Revenue
Other sources of revenue	27,386	33,644	88,357	88,175
Loan originations related fees and sales premiums, net
Disaggregation of Revenue
Other sources of revenue	21,455	26,386	57,719	60,508
Servicing fees and other
Disaggregation of Revenue
Other sources of revenue	58,548	45,930	158,963	127,211
Leasing and other commissions
Disaggregation of Revenue
Revenues from contracts with customers:	219,903	231,532	631,681	563,311
Revenues	219,903	231,532	631,681	563,311
Investment sales
Disaggregation of Revenue
Revenues from contracts with customers:	131,731	208,786	492,898	452,565
Mortgage brokerage and debt placement
Disaggregation of Revenue
Revenues from contracts with customers:	41,792	43,308	138,407	105,688
Management services
Disaggregation of Revenue
Revenues from contracts with customers:	$ 163,831	$ 198,539	$ 530,220	$ 524,519