ALLOWANCE FOR RISK-SHARING OBLIGATIONS AND GUARANTY OBLIGATION - Summary of Allowance for Risk-Sharing Obligations (Detail) $ in Thousands	12 Months Ended
Dec. 31, 2025 USD ($) loan	Dec. 31, 2024 USD ($) loan	Dec. 31, 2023 USD ($)
Allowance for Risk-Sharing Contracts
Beginning balance	$ 28,159	$ 31,601
Provision (benefit) for risk-sharing obligations	9,387	(974)	$ (10,448)
Write-offs		(468)
Other		(2,000)
Ending balance	$ 37,546	$ 28,159	$ 31,601
Number of defaulted loans \| loan	3	3
Investment, Type [Extensible Enumeration]	Federal Home Loan Mortgage Corporation Certificates and Obligations (FHLMC) [Member]	Federal Home Loan Mortgage Corporation Certificates and Obligations (FHLMC) [Member]
Amount of specific reserves placed on defaulted at risk loans	$ 12,600	$ 4,000
Fannie Mae DUS program
Allowance for Risk-Sharing Contracts
Maximum quantifiable contingent liability associated with guarantees	$ 14,100,000	$ 12,900,000
Fannie Mae DUS Program
Allowance for Risk-Sharing Contracts
Number of defaulted loans \| loan	11	3
Weighted average remaining life of the at risk servicing portfolio	5 years 1 month 6 days	5 years 8 months 12 days

Maximum potential amount of future payments (undiscounted) the guarantor could be required to make under the guarantee or each group of similar guarantees before reduction for potential recoveries under recourse or collateralization provisions.

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Indicates type of investment. Includes, but is not limited to, common stock, preferred stock, convertible security, fixed income security, government security, option purchased, warrant, loan participation and assignment, commercial paper, bankers' acceptance, certificates of deposit, short-term security, repurchase agreement, and other investment company.

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Represents the write-off of the allowance for risk-sharing obligations upon final settlement of the loss sharing amount net of recoveries.

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Amount of allowance to cover probable credit losses on loans under the Company's risk-sharing obligations with Fannie Mae.

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The increase (decrease) in the allowance for risk-sharing obligations due to other factors.

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Amount of expense (benefit) related to risk-sharing obligations.

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Number of defaulted at risk loans.

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The amount of specific reserves placed on defaulted at risk loans.

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The weighted average remaining life of the at risk servicing portfolio.

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