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Fair Value of Financial Instruments - Additional Information (Details) - USD ($) | 3 Months Ended |
--- | --- | ---
Mar. 31, 2024 | Mar. 31, 2023 | Dec. 31, 2023
Carrying Value |  |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |  |
Other investments | $ 3,224,000 |  | $ 3,193,000
Securities |  |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |  |
Fair value option elected aggregate carrying amount, asset | 48,000,000 | $ 2,000,000 |
Residential Consumer Loans |  |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |  |
Fair value option elected aggregate carrying amount, asset | 1,000,000,000 | 53,000,000 |
Total Residential Investor Loans |  |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |  |
Fair value option elected aggregate carrying amount, asset | 327,000,000 | 442,000,000 |
HEIs |  |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |  |
Acquisitions | 300,000 | 17,000,000 |
MSRs and Other Asset Class |  |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |  |
Acquisitions | $ 200,000 | $ 0 |

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- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References No definition available. + Details
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- Definition Amount of purchases of financial instrument classified as an asset measured using unobservable inputs that reflect the entity's own assumption about the assumptions market participants would use in pricing. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Topic 820 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(2) -Publisher FASB -URI https://asc.fasb.org//1943274/2147482106/820-10-50-2 + Details
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