Loans Held for Sale at Fair Value (Details) - USD ($) $ in Thousands	Jun. 30, 2023	Dec. 31, 2022
Mortgage Loans Held for Sale at Fair Value
Loans held for sale	$ 4,270,494	$ 3,509,300
Government-insured or guaranteed
Mortgage Loans Held for Sale at Fair Value
Loans held for sale	2,224,970	2,006,157
Conventional mortgage loans
Mortgage Loans Held for Sale at Fair Value
Loans held for sale	1,631,926	1,145,053
Jumbo Loan
Mortgage Loans Held for Sale at Fair Value
Loans held for sale	20,840	12,318
Closed-end second
Mortgage Loans Held for Sale at Fair Value
Loans held for sale	153,700	46,589
Mortgage loans purchased from Ginnie Mae pools serviced by the entity
Mortgage Loans Held for Sale at Fair Value
Loans held for sale	226,668	257,175
Mortgage loans repurchased pursuant to representations and warranties
Mortgage Loans Held for Sale at Fair Value
Loans held for sale	12,390	42,008
Asset Pledged as Collateral without Right
Mortgage Loans Held for Sale at Fair Value
Loans held for sale	4,194,839	3,442,847
Asset Pledged as Collateral without Right | Loan Repo Facility
Mortgage Loans Held for Sale at Fair Value
Loans held for sale	3,661,755	3,139,870
Asset Pledged as Collateral without Right | Mortgage Loan Participation and Sale Agreement member
Mortgage Loans Held for Sale at Fair Value
Loans held for sale	$ 533,084	$ 302,977