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Subsequent Events (Details) - USD ($) $ in Millions	9 Months Ended
	Sep. 30, 2025	Sep. 30, 2024
Rithm Capital Corp | Unpaid Principal Balance | Customer Concentration Risk
Subsequent Event [Line Items]
Concentration Risk, Amount	$ 33,000.0
Concentration risk (percent)	10.00%
Rithm Capital Corp | Loan Count | Customer Concentration Risk
Subsequent Event [Line Items]
Concentration risk (percent)	20.00%
Rithm Capital Corp | Delinquent Loans | Customer Concentration Risk
Subsequent Event [Line Items]
Concentration risk (percent)	55.00%
Rithm Capital Corp | Servicing And Subservicing Fees Benchmark | Customer Concentration Risk
Subsequent Event [Line Items]
Concentration Risk, Amount	$ 60.2	$ 73.5
Concentration risk (percent)	13.00%	16.00%
Rithm Capital Corp | Pledged MSR Liability Expense Benchmark | Customer Concentration Risk
Subsequent Event [Line Items]
Concentration Risk, Amount	$ 27.6	$ 27.6
Rithm | 2017 Agreements and New RMSR Agreements | Mortgage Servicing Rights Title Retained
Subsequent Event [Line Items]
UPB of rights to MSRs sold	$ 8,500.0

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+ References

No definition available.

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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
-SubTopic 310
-Name Accounting Standards Codification
-Section S50
-Paragraph 2
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-URI https://asc.fasb.org/1943274/2147478322/948-310-S50-2

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-Topic 948
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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.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 280
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 42
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Detail information of subsequent event by type. User is expected to use existing line items from elsewhere in the taxonomy as the primary line items for this disclosure, which is further associated with dimension and member elements pertaining to a subsequent event.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 830
-SubTopic 30
-Name Accounting Standards Codification
-Section 50
-Paragraph 2
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147481674/830-30-50-2

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Topic 855
-SubTopic 10
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-Section 50
-Paragraph 2
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