Transactions with Related Parties - MSR Recapture Agreement - Additional Information (Detail) - 2020 MSR Recapture Agreement [Member]	6 Months Ended
	Jun. 30, 2024
Mortgage Loans On Real Estate [Line Items]
Servicing agreement expiration date	Jun. 30, 2025
Service agreement maturity renewal term	18 months
Mortgage loans on real estate, renewed and Extended, description	40% of the fair market value of the MSRs relating to the recaptured loans subject to the first 15% of the “recapture rate”; •35% of the fair market value of the MSRs relating to the recaptured loans subject to the “recapture rate” in excess of 15% and up to 30%; and 30% of the fair market value of the MSRs relating to the recaptured loans subject to the “recapture rate” in excess of 30%.
Recapture rate	15.00%