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Concentration Risk, Amount

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Lockout Restrictions For Selling Or Transferring Mortgage Servicing Rights, Percentage

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Short-term commitments to lend.

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Threshold percentage of outstanding principal balance on maximum claim amount.

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Amount of contractual principal due at origination of mortgage loan within investment in mortgage loan on real estate by entity with substantial portion of business acquiring and holding investment real estate or interest in real estate.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Name Regulation S-X (SX)
-Number 210
-Section 12
-Subsection 29
-Paragraph Column F
-Publisher SEC

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Topic 948
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-Name Accounting Standards Codification
-Section S50
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-Paragraph 1
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-Publisher FASB
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For an entity that discloses a concentration risk in relation to quantitative amount, which serves as the "benchmark" (or denominator) in the equation, this concept represents the concentration percentage derived from the division.

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Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 280
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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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No definition available.

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Commitments - Narrative (Details) - USD ($) $ in Millions	1 Months Ended		3 Months Ended			9 Months Ended
Commitments - Narrative (Details) - USD ($) $ in Millions	Jun. 30, 2026	May 31, 2026	Sep. 30, 2026	Jun. 30, 2026	Mar. 31, 2026	Sep. 30, 2026	Sep. 30, 2025	Dec. 31, 2025
Other Commitments [Line Items]
Threshold of outstanding principal balance on maximum claim amount (as a percent)						98.00%
Floating Rate Reverse Mortgage Loans
Other Commitments [Line Items]
Additional borrowing capacity to borrowers			$ 1,500.0			$ 1,500.0		$ 2,900.0
Funded amount in connection with reverse mortgage loans						165.6
Forward Mortgage Loan Interest Rate Lock Commitments
Other Commitments [Line Items]
Short-term commitments to lend			1,000.0			1,000.0
Rithm Capital Corp
Other Commitments [Line Items]
RMSR			3,400.0			4,600.0
Rithm Capital Corp \| Fair Value Non-Agency Mortgage Servicing Rights
Other Commitments [Line Items]
RMSR			3,400.0	$ 0.0	$ 1,200.0	4,600.0
Subservicing	$ 10,000.0	$ 11,200.0	600.0	$ 21,200.0	$ 600.0	22,400.0
Rithm Capital Corp \| Mortgage Servicing Rights Title Retained \| 2017 Agreements and New RMSR Agreements
Other Commitments [Line Items]
UPB of rights to MSRs sold			3,300.0			3,300.0
MAV Asset Vehicle LLC
Other Commitments [Line Items]
RMSR			$ 5,100.0			$ 5,100.0
Lockout Restrictions For Selling Or Transferring Mortgage Servicing Rights, Percentage			25.00%			25.00%
Rithm \| Mortgage Servicing Rights Title Retained \| 2017 Agreements and New RMSR Agreements
Other Commitments [Line Items]
UPB of rights to MSRs sold			$ 3,300.0			$ 3,300.0
Customer Concentration Risk \| Servicing And Subservicing Fees Benchmark \| Rithm Capital Corp
Other Commitments [Line Items]
Concentration risk (percent)							13.00%
Concentration Risk, Amount						$ 38.0	$ 60.2
Customer Concentration Risk \| Servicing And Subservicing Fees Benchmark \| MAV Asset Vehicle LLC
Other Commitments [Line Items]
Concentration risk (percent)						8.00%	9.00%
Concentration Risk, Amount						$ 39.6	$ 44.3
Customer Concentration Risk \| Servicing And Subservicing Fees Benchmark \| Rithm
Other Commitments [Line Items]
Concentration risk (percent)						7.00%
Customer Concentration Risk \| Unpaid Principal Balance \| Rithm Capital Corp
Other Commitments [Line Items]
Concentration risk (percent)						1.00%
Concentration Risk, Amount						$ 3,800.0
Customer Concentration Risk \| Unpaid Principal Balance \| MAV Asset Vehicle LLC
Other Commitments [Line Items]
Concentration risk (percent)						11.00%
Customer Concentration Risk \| Loan Count \| Rithm Capital Corp
Other Commitments [Line Items]
Concentration risk (percent)						3.00%
Customer Concentration Risk \| Loan Count \| MAV Asset Vehicle LLC
Other Commitments [Line Items]
Concentration risk (percent)						11.00%
Customer Concentration Risk \| Delinquent Loans \| Rithm Capital Corp
Other Commitments [Line Items]
Concentration risk (percent)						10.00%
Customer Concentration Risk \| Pledged MSR Liability Expense Benchmark \| Rithm Capital Corp
Other Commitments [Line Items]
Concentration Risk, Amount						$ 19.6	27.6
Customer Concentration Risk \| Pledged MSR Liability Expense Benchmark \| MAV Asset Vehicle LLC
Other Commitments [Line Items]
Concentration Risk, Amount						30.6	$ 34.3
Customer Concentration Risk \| Servicing and Subservicing Portfolio Benchmark \| MAV Asset Vehicle LLC
Other Commitments [Line Items]
Concentration Risk, Amount						$ 36,900.0