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-- None. No documentation exists for this element. --

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Financing Liabilities [Abstract]

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This represents the amount of liability which is a resultant of reverse mortgage loans sold into the secondary with servicing rights retained. As the transfer of these loans do not meet the definition of participating interest because of the servicing requirement that requires the issuer to absorb some level of risk, these transfers are accounted for as financing.

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No definition available.

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-- None. No documentation exists for this element. --

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This element represents the portion of the balance sheet assertion valued at fair value by the entity whether such amount is presented as a separate caption or as a parenthetical disclosure. Additionally, this element may be used in connection with the fair value disclosures required in the footnote disclosures to the financial statements. The element may be used in both the balance sheet and disclosure in the same submission. This item represents loans held-for-sale at lower cost of fair value as presented on the statement of financial position which may include mortgage loans held-for-sale, finance receivables held-for-sale, or any other loans classified as held-for-sale which are due the Company as of the balance sheet date.

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This element represents the home equity conversion mortgages insured by FHA.

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Mortgage Service Rights [Abstract]

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No definition available.

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Other financing liabilities.

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No definition available.

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Fair values as of the balance sheet date of the net amount of all assets and liabilities resulting from contracts that meet the criteria of being accounted for as derivative instruments.

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-Paragraph 5
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Fair value as of the balance sheet date of derivative instrument not designated as hedging instrument and classified as a liability.

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Fair value 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.

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The carrying value as of the balance sheet date of the current and noncurrent portions of long-term obligations drawn from a line of credit, which is a bank's commitment to make loans up to a specific amount. Examples of items that might be included in the application of this element may consist of letters of credit, standby letters of credit, and revolving credit arrangements, under which borrowings can be made up to a maximum amount as of any point in time conditional on satisfaction of specified terms before, as of and after the date of drawdowns on the line. Includes short-term obligations that would normally be classified as current liabilities but for which (a) postbalance sheet date issuance of a long term obligation to refinance the short term obligation on a long term basis, or (b) the enterprise has entered into a financing agreement that clearly permits the enterprise to refinance the short-term obligation on a long term basis and the following conditions are met (1) the agreement does not expire within 1 year and is not cancelable by the lender except for violation of an objectively determinable provision, (2) no violation exists at the BS date, and (3) the lender has entered into the financing agreement is expected to be financially capable of honoring the agreement.

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Fair value portion of loans held-for-sale including, but not limited to, mortgage loans and finance receivables.

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Amount of borrowings classified as other, maturing within one year or the normal operating cycle, if longer.

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Fair value portion of receivables, including, but not limited to, trade account receivables, note receivables, and loan receivables.

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Carrying value as of the balance sheet date, including the current and noncurrent portions, of collateralized debt obligations (with maturities initially due after one year or beyond the operating cycle, if longer). Such obligations include mortgage loans, chattel loans, and any other borrowings secured by assets of the borrower.

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Including the current and noncurrent portions, carrying value as of the balance sheet date of Notes with the highest claim on the assets of the issuer in case of bankruptcy or liquidation (with maturities initially due after one year or beyond the operating cycle if longer). Senior note holders are paid off in full before any payments are made to junior note holders.

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Fair value of an asset representing net future revenue from contractually specified servicing fees, late charges, and other ancillary revenues, in excess of future costs related to servicing arrangements.

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Carrying amount of liabilities associated with financial assets accounted for as secured borrowings recognized in the transferor's statement of financial position at the end of each period presented.

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Fair Value - Schedule of Fair Value Assets and Liabilities (Details) - USD ($) $ in Millions	Sep. 30, 2024	Jun. 30, 2024	Dec. 31, 2023	Sep. 30, 2023	Jun. 30, 2023	Dec. 31, 2022
Loans held for sale (a) (d) (e)
Loans held for sale, at fair value	$ 1,195.5	$ 1,103.9	$ 674.2	$ 944.7	$ 1,352.9	$ 617.8
Financial liabilities
Advance match funded liabilities	377.2		499.7
Financing liabilities, at fair value:
HMBS-related borrowings	8,132.5	8,035.4	7,797.3	7,613.6	7,486.4	7,326.8
Other financing liabilities, at fair value	826.2		900.0
Other secured borrowings:
Mortgage loan financing facilities, net ($518.7 and $143.4 related to VIEs)	1,355.9		710.6
MSR financing facilities	804.8		916.2
Senior notes
Total Senior notes	535.1		595.8
Mortgage servicing rights
MSRs	2,223.6	2,327.7	2,272.2		2,675.7	2,665.2
Carrying Value
Loans held for sale (a) (d) (e)
Loans held for sale, at fair value	1,197.7		677.3
Financing liabilities, at fair value:
Other financing liabilities, at fair value	826.2		900.0
Senior notes
Total Senior notes	535.1		595.8
Fair Value
Loans held for sale (a) (d) (e)
Loans held for sale, at fair value	1,197.7		677.3
Financing liabilities, at fair value:
Other financing liabilities, at fair value	826.2		900.0
Senior notes
Total Senior notes	556.9		556.5
ESS Financing Liability
Financing liabilities, at fair value:
Other financing liabilities, at fair value	243.3		248.9
Level 3 \| Carrying Value
Loans held for sale (a) (d) (e)
Loans held for investment, at fair value (a) (f)	8,331.5		7,975.5
Loans held for sale, at lower of cost or fair value	2.1		3.1
Advances, net	522.7		678.8
Receivables, net	172.2		154.8
Financial liabilities
Advance match funded liabilities	377.2		499.7
Financing liabilities, at fair value:
HMBS-related borrowings	8,132.5		7,797.3
Other secured borrowings:
Mortgage loan financing facilities, net ($518.7 and $143.4 related to VIEs)	1,355.9		710.6
MSR financing facilities	804.8		916.2
Mortgage servicing rights
MSRs	2,223.6		2,272.2
Level 3 \| Carrying Value \| Second Lien
Senior notes
Senior secured notes	248.2		239.7
Level 3 \| Fair Value
Loans held for sale (a) (d) (e)
Loans held for investment, at fair value (a) (f)	8,331.5		7,975.5
Advances, net	522.7		678.8
Receivables, net	172.2		154.8
Financial liabilities
Advance match funded liabilities	377.2		499.7
Financing liabilities, at fair value:
HMBS-related borrowings	8,132.5		7,797.3
Other secured borrowings:
Mortgage loan financing facilities, net ($518.7 and $143.4 related to VIEs)	1,367.8		717.6
MSR financing facilities	793.4		900.3
Mortgage servicing rights
MSRs	2,223.6		2,272.2
Level 3 \| Fair Value \| Second Lien
Senior notes
Senior secured notes	267.4		230.5
Level 3 \| Interest Rate Contract \| Carrying Value
Derivative financial instrument assets (liabilities), net
Interest rate lock commitments	5.2		5.6
Level 3 \| Interest Rate Contract \| Fair Value
Derivative financial instrument assets (liabilities), net
Interest rate lock commitments	5.2		5.6
Level 3 \| Other \| Carrying Value
Derivative financial instrument assets (liabilities), net
Other commitments (a)	0.0		(0.1)
Level 3 \| Other \| Fair Value
Derivative financial instrument assets (liabilities), net
Other commitments (a)	0.0		(0.1)
Level 3 \| ESS Financing Liability
Mortgage servicing rights
Loans related to Ginnie Mae guaranteed securitizations	(243.3)	(250.5)	(248.9)	(255.4)	(258.5)	(199.0)
Level 3 \| Loans Held for Sale - Fair Value
Mortgage servicing rights
Loans related to Ginnie Mae guaranteed securitizations	446.5	$ 296.7	203.1	$ 199.8	$ 197.4	$ 32.1
Level 3 \| Loans Held for Investment Securitization Trusts \| Carrying Value
Loans held for sale (a) (d) (e)
Loans held for investment, at fair value (a) (f)	5.2		5.6
Level 2 \| Carrying Value
Senior notes
Senior secured notes	286.9		356.1
Level 2 \| Fair Value
Senior notes
Senior secured notes	289.5		326.0
Level 1 \| Other \| Carrying Value
Derivative financial instrument assets (liabilities), net
Interest rate lock commitments	(8.9)		9.1
Level 1 \| Other \| Fair Value
Derivative financial instrument assets (liabilities), net
Interest rate lock commitments	$ (8.9)		$ 9.1