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Other Assets and Liabilities - Summary of Components of Other Assets (Detail) - USD ($) $ in Thousands | Sep. 30, 2025 | Dec. 31, 2024
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Other Assets And Liabilities Disclosure [Abstract] |  |
Loan portfolio payments held by servicer | $ 429,747 | $ 113,199
Accrued interest receivable | 138,130 | 160,131
Accounts receivable and other assets | 114,172 | 134,030
Real estate intangible assets, net | 96,672 | 77,289
Other real estate assets | 35,867 | 9,338
Derivative assets | 19,505 | 72,454
Prepaid expenses | 126 | 1,002
Collateral deposited under derivative agreements | 0 | 4,810
Total | 834,219 | 572,253
Cash collateral | $ 105,200 | $ 95,500

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- Definition The aggregate fair value of assets that are already posted, at the end of the reporting period, as collateral for derivative instruments with credit-risk-related contingent features. + References Reference 1: http://www.xbrl.org/2003/role/exampleRef -Topic 815 -SubTopic 10 -Name Accounting Standards Codification -Section 55 -Paragraph 185 -Publisher FASB -URI https://asc.fasb.org/1943274/2147480401/815-10-55-185 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 815 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 4H -Subparagraph (d) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480434/815-10-50-4H + Details
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- Definition Fair value, after the effects of master netting arrangements, of a financial asset or other contract with one or more underlyings, notional amount or payment provision or both, and the contract can be net settled by means outside the contract or delivery of an asset. 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