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Loan Servicing, Mortgage Origination, and Loans Held for Sale - Mandatory cash forwards (Details) - USD ($) $ in Thousands | 3 Months Ended | 9 Months Ended |
--- | --- | --- | ---
Sep. 30, 2022 | Sep. 30, 2021 | Sep. 30, 2022 | Sep. 30, 2021 | Dec. 31, 2021
Mortgage loan securitizations, mandatory cash forwards, and whole loan sales |  |  |  |  |
Loan sales | $ 272,800 | $ 612,500 | $ 1,400,000 | $ 2,400,000 |
Loan securitizations and loan sales | $ 216,100 | $ 489,800 | $ 1,100,000 | $ 1,900,000 |
Percentage of loan securitizations and loan sales | 79.20% | 80.00% | 77.20% | 79.50% |
Loans held for sale | $ 34,477 |  | $ 34,477 |  | $ 191,723
Minimum |  |  |  |  |
Mortgage loan securitizations, mandatory cash forwards, and whole loan sales |  |  |  |  |
Loans held for sale, settlement period |  |  | 15 days |  |
Maximum |  |  |  |  |
Mortgage loan securitizations, mandatory cash forwards, and whole loan sales |  |  |  |  |
Loans held for sale, settlement period |  |  | 45 days |  |

X
- Definition Represent the settlement period of loan held for sale. + References No definition available. + Details
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Balance Type: | na
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X
- Definition Represents the amount of mortgage loan securitized and sold during the period. + References No definition available. + Details
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Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

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- References No definition available. + Details
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Data Type: | xbrli:stringItemType
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- Definition Represents the amount of mortgage loan sold during the period. + References No definition available. + Details
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- Definition Represents the percentage of mortgage loan securitized and sold during the period with servicing rights retained by the company. + References No definition available. + Details
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- Definition Amount, after valuation allowance, of financing receivable held for sale and not part of disposal group. Excludes loan covered under loss sharing agreement and loan classified as investment in debt security. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 45 -Paragraph 2 -URI https://asc.fasb.org/extlink&oid=124259787&loc=d3e4428-111522 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 948 -SubTopic 310 -Section 45 -Paragraph 1 -URI https://asc.fasb.org/extlink&oid=124265262&loc=d3e48678-111004 + Details
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Period Type: | instant

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- Details
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- Details
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