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Loans Held-for-Sale, Net - Narrative (Details) | 3 Months Ended | 9 Months Ended | 12 Months Ended
--- | --- | --- | ---
Sep. 30, 2023 USD ($) | Mar. 31, 2023 USD ($) | Sep. 30, 2022 USD ($) | Jun. 30, 2022 USD ($) | Sep. 30, 2023 USD ($) | Sep. 30, 2022 USD ($) | Dec. 31, 2022 USD ($) loan
Loans Held-for-Sale, Net |  |  |  |  |  |  |
Sale of loans held-for-sale excluding acquired loans | $ 1,280,000,000 |  | $ 1,080,000,000.00 |  | $ 3,620,000,000 | $ 3,700,000,000 |
Amount of securitizations |  |  |  |  |  |  | $ 43,400,000
Unrealized impairment loss |  |  |  | $ 4,100,000 | 2,891,000 |  |
Loans held-for-sale placed on non-accrual status | 0 |  |  |  | 0 |  | 0
Greater Than 90 Days Past Due |  |  |  |  |  |  |
Loans Held-for-Sale, Net |  |  |  |  |  |  |
Loans held-for-sale that were 90 days or more past due | $ 0 |  |  |  | $ 0 |  | 0
US Government Sponsored-Enterprise Insured Loans |  |  |  |  |  |  |
Loans Held-for-Sale, Net |  |  |  |  |  |  |
Period of loans held for sale sold |  |  |  |  | 60 days |  |
Private Label |  |  |  |  |  |  |
Loans Held-for-Sale, Net |  |  |  |  |  |  |
Period of loans held for sale sold |  |  |  |  | 180 days |  |
Sale of loans held-for-sale excluding acquired loans |  |  |  |  |  |  | 489,300,000
Net loss of swaps gain with loans |  |  |  |  |  |  | $ 5,200,000
Number of loans under the loan portfolio | loan |  |  |  |  |  |  | 7
Unpaid principal balance |  |  |  |  |  |  | $ 129,900,000
Net loans carrying value |  |  |  |  |  |  | $ 116,400,000
Gain on sale of loans |  | $ 900,000 |  |  |  |  |

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