Discontinued Operations and Disposal Groups (Details) - USD ($) $ in Millions	3 Months Ended
Mar. 31, 2023	Mar. 31, 2022
Sagent M&C, LLC
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Income (Loss) from Equity Method Investments	$ (7.0)
Equity Method Investments	230.0	$ 250.0
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, Discontinued Operation, Transaction Cost	$ 0.0	4.0
Purchase price		260.0
Disposal Group, Including Discontinued Operation, Assets, Noncurrent		31.0
Cash received from disposal		9.9
Disposal Group, Not Discontinued Operation, Gain (Loss) on Disposal		$ 223.0
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]
Ownership interest percentage		19.90%

Disposal Group, Discontinued Operation, Transaction Cost

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Amount classified as assets attributable to disposal group held for sale or disposed of, expected to be disposed of after one year or the normal operating cycle, if longer.

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Amount of currency on hand, demand deposits with banks or financial institutions, and other kinds of accounts that have the general characteristics of demand deposits, held by a disposal group.

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Amount of consideration received or receivable for the disposal of assets and liabilities, including discontinued operation.

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Amount before tax of gain (loss) recognized on the sale or disposal of a disposal group. Excludes discontinued operations.

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The equity interest of noncontrolling shareholders, partners or other equity holders in consolidated entity.

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