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Discontinued Operations and Disposal Groups (Details) - USD ($) $ in Millions | 12 Months Ended |  |
--- | --- | --- | ---
Dec. 31, 2022 | Dec. 31, 2021 | Dec. 31, 2020 | Mar. 31, 2022 | Dec. 01, 2021
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items] |  |  |  |  |
Net loss from discontinued operations | $ 0.0 | $ (12.0) | $ (2.0) |  |
Discontinued Operation, Loan Asset Retained | 36.0 | 55.0 |  |  |
Discontinued Operation, Loan Liability Retained | 27.0 | 39.0 |  |  |
Sagent M&C, LLC |  |  |  |  |
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items] |  |  |  |  |
Equity Method Investments | 237.0 |  |  | $ 250.0 |
Income (Loss) from Equity Method Investments | 13.0 |  |  |  |
Discontinued Operations, Held-for-sale or Disposed of by Sale | Champion Mortgage |  |  |  |  |
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items] |  |  |  |  |
Revenue - service related, net |  | 26.0 | 44.0 |  |
Salaries, wages and benefits expense |  | (30.0) | (41.0) |  |
General and administrative expense |  | 21.0 | (8.0) |  |
Interest income |  | 137.0 | 176.0 |  |
Interest expense |  | (105.0) | (174.0) |  |
Loss on classification as discontinued operations |  | (65.0) | 0.0 |  |
Loss from discontinued operations before income tax benefit |  | (16.0) | (3.0) |  |
Less: Income tax benefit |  | (4.0) | (1.0) |  |
Net loss from discontinued operations |  | (12.0) | $ (2.0) |  |
Disposal Group, Including Discontinued Operation, Consideration |  |  |  |  | $ 1,640.0
Disposal Group, Discontinued Operation, Transaction Cost |  | $ 4.0 |  |  |
Disposal Group, Disposed of by Sale, Not Discontinued Operations | Mortgage Servicing Platform |  |  |  |  |
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items] |  |  |  |  |
Disposal Group, Including Discontinued Operation, Consideration |  |  |  | 260.0 |
Disposal Group, Discontinued Operation, Transaction Cost | $ 4.0 |  |  |  |
Disposal Group, Including Discontinued Operation, Assets, Noncurrent |  |  |  | 31.0 |
Disposal Group, Including Discontinued Operation, Cash |  |  |  | $ 9.9 |
Disposal Group, Disposed of by Sale, Not Discontinued Operations | Mortgage Servicing Platform | Sagent M&C, LLC | Mr. Cooper Group Inc. |  |  |  |  |
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items] |  |  |  |  |
Noncontrolling Interest, Ownership Percentage by Noncontrolling Owners |  |  |  | 19.90% |

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