Mortgage Servicing Rights (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022		Dec. 31, 2021	Jul. 01, 2023
Mortgage Servicing Rights [Abstract]
Unpaid principal balance of reverse mortgage loans in servicing portfolio	$ 2,800,000	$ 774,600			$ 2,100,000
Mortgage servicing rights, at fair value	29,580	8,108
Other, net	40,954	5,379	[1]	$ 7,194
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Unpaid principal balance of reverse mortgage loans in servicing portfolio	2,800,000	774,600			$ 2,100,000
Mortgage servicing rights, at fair value	29,580	8,108
Other, net	40,954	5,379	[1]	$ 7,194
Change in unrealized gain (loss) on servicing asset	23,900
Mortgage servicing rights
Mortgage Servicing Rights [Abstract]
Other, net	21,200	400
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Other, net	$ 21,200	$ 400

[1] Conformed to current period presentation.