XML 82 R67.htm IDEA: XBRL DOCUMENT
v3.25.1

Loans Held for Sale - Fair Value - Schedule of Loans Held for Sale Fair Value (Details) - USD ($) $ in Millions | 3 Months Ended
--- | ---
Mar. 31, 2025 | Mar. 31, 2024
Movement In Loans Held For Sale At Fair Value [Roll Forward] |  |
Beginning balance | $ 1,290.2 | $ 674.2
Originations and purchases | 4,273.3 | 2,988.9
Proceeds from sales | (4,082.6) | (2,581.0)
Principal collections | (32.0) | (23.1)
Loans held for investment, at fair value | 3.1 | 1.0
Receivables | (20.5) | (10.6)
REO (Other assets) | (12.3) | (3.0)
Advances (incl. capitalization upon Ginnie Mae modifications) | 4.8 | 2.1
Fair value gain (loss) on loans held for sale, at fair value (1) | (35.4) | (27.5)
Other (2) | 13.6 | 4.7
Ending balance | 1,402.2 | 1,025.7
Principal amount outstanding on loans held for sale | 1,491.4 | 1,401.2
Premium (discount) balance on loans held for sale | (76.4) | (91.6)
Fair value adjustment to loans held for sale | (12.8) | (19.4)
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Loans Held-for-sale, Fair Value Disclosure | 1,402.2 | $ 1,025.7
GSE loans |  |
Movement In Loans Held For Sale At Fair Value [Roll Forward] |  |
Beginning balance | 610.8 |
Ending balance | 722.6 |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Loans Held-for-sale, Fair Value Disclosure | 722.6 |
Government- Forward loans |  |
Movement In Loans Held For Sale At Fair Value [Roll Forward] |  |
Beginning balance | 215.5 |
Ending balance | 191.9 |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Loans Held-for-sale, Fair Value Disclosure | 191.9 |
Repurchased Ginnie Mae Loans |  |
Movement In Loans Held For Sale At Fair Value [Roll Forward] |  |
Beginning balance | 26.1 |
Ending balance | 38.6 |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Loans Held-for-sale, Fair Value Disclosure | 38.6 |
Reverse Loans |  |
Movement In Loans Held For Sale At Fair Value [Roll Forward] |  |
Beginning balance | 432.4 |
Ending balance | 442.6 |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Loans Held-for-sale, Fair Value Disclosure | 442.6 |
Other residential mortgage loans |  |
Movement In Loans Held For Sale At Fair Value [Roll Forward] |  |
Beginning balance | 5.3 |
Ending balance | 6.4 |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Loans Held-for-sale, Fair Value Disclosure | $ 6.4 |

X
- Definition Capitalization of advances on Ginnie Mae modifications. + References No definition available. + Details
Name: | onit_CapitalizationOfAdvancesOnGinnieMaeModifications
Namespace Prefix: | onit_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Fair value adjustment to loans held for sale + References No definition available. + Details
Name: | onit_FairValueAdjustmentToLoansHeldForSale
Namespace Prefix: | onit_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period. + References No definition available. + Details
Name: | onit_MovementInLoansHeldForSaleAtFairValueRollForward
Namespace Prefix: | onit_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Represents amount of addition or reductions in principal on mortgage loans held for sale other than foreclosures, costs of mortgages sold, and amortization of premium during the reporting period. + References No definition available. + Details
Name: | onit_OtherAdjustmentMortgageLoansHeldForSale
Namespace Prefix: | onit_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Premium (discount) balance on loans held for sale + References No definition available. + Details
Name: | onit_PremiumDiscountBalanceOnLoansHeldForSale
Namespace Prefix: | onit_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Principal amount outstanding on loans held for sale + References No definition available. + Details
Name: | onit_PrincipalAmountOutstandingOnLoansHeldForSale
Namespace Prefix: | onit_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Value of loans held for sale at fair value in the entity's portfolio transferred to real estate owned in non-cash transactions. + References No definition available. + Details
Name: | onit_TransferOfPortfolioLoansToRealEstateOwned
Namespace Prefix: | onit_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Value of loans held for sale at fair value in the entity's portfolio transferred to receivables in non-cash transactions. + References No definition available. + Details
Name: | onit_TransferOfPortfolioLoansToReceivables
Namespace Prefix: | onit_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition 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. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 310 -SubTopic 20 -Name Accounting Standards Codification -Section 40 -Paragraph 7 -Publisher FASB -URI https://asc.fasb.org/1943274/2147481628/310-20-40-7 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 310 -SubTopic 10 -Name Accounting Standards Codification -Section 45 -Paragraph 2 -Publisher FASB -URI https://asc.fasb.org/1943274/2147481990/310-10-45-2 + Details
Name: | us-gaap_AccountsNotesAndLoansReceivableLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition The increase (decrease) during the reporting period in the value of loans or securitized loans that are held with the intention to sell in the near future. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 230 -SubTopic 10 -Name Accounting Standards Codification -Section 45 -Paragraph 28 -Subparagraph (a) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482740/230-10-45-28 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Name Accounting Standards Codification -Section 45 -Paragraph 21 -SubTopic 10 -Topic 230 -Publisher FASB -URI https://asc.fasb.org/1943274/2147482740/230-10-45-21 + Details
Name: | us-gaap_IncreaseDecreaseInLoansHeldForSale
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Fair value portion of loans held-for-sale including, but not limited to, mortgage loans and finance receivables. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 820 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (bbb)(2)(i) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482106/820-10-50-2 Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 820 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (bbb)(2) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482106/820-10-50-2 Reference 3: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 820 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (bbb)(1) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482106/820-10-50-2 Reference 4: http://www.xbrl.org/2003/role/disclosureRef -Topic 820 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (b) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482106/820-10-50-2 Reference 5: http://www.xbrl.org/2003/role/disclosureRef -Topic 820 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (a) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482106/820-10-50-2 + Details
Name: | us-gaap_LoansHeldForSaleFairValueDisclosure
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition The amount of cash paid for the origination of mortgages that are held for sale. + References Reference 1: http://www.xbrl.org/2003/role/exampleRef -Topic 230 -SubTopic 10 -Name Accounting Standards Codification -Section 45 -Paragraph 21 -Publisher FASB -URI https://asc.fasb.org/1943274/2147482740/230-10-45-21 Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 230 -SubTopic 10 -Name Accounting Standards Codification -Section 45 -Paragraph 25 -Subparagraph (g) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482740/230-10-45-25 + Details
Name: | us-gaap_PaymentsForOriginationOfMortgageLoansHeldForSale
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Cash inflow related to a loan origination (the process when securing a mortgage for a piece of real property), lease origination, and principal collections. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 12 -Publisher FASB -URI https://asc.fasb.org/1943274/2147482740/230-10-45-12 + Details
Name: | us-gaap_ProceedsFromLoanAndLeaseOriginationsAndPrincipalCollections1
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition The cash inflow from sales of loans that are secured with real estate mortgages and are held with the intention to resell in the near future. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Topic 230 -SubTopic 10 -Name Accounting Standards Codification -Section 45 -Paragraph 25 -Subparagraph (c) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482740/230-10-45-25 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 21 -Publisher FASB -URI https://asc.fasb.org/1943274/2147482740/230-10-45-21 + Details
Name: | us-gaap_ProceedsFromSaleOfMortgageLoansHeldForSale
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Value of loans and leases held in the entity's portfolio transferred to loans and leases held-for-sale in noncash transactions. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 50 -Paragraph 4 -Publisher FASB -URI https://asc.fasb.org/1943274/2147482913/230-10-50-4 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 50 -Paragraph 3 -Publisher FASB -URI https://asc.fasb.org/1943274/2147482913/230-10-50-3 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 50 -Paragraph 5 -Publisher FASB -URI https://asc.fasb.org/1943274/2147482913/230-10-50-5 + Details
Name: | us-gaap_TransferOfPortfolioLoansAndLeasesToHeldForSale1
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Details
Name: | us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis=onit_GSELoansMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis=onit_GovernmentForwardLoansMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis=onit_RepurchasedGinnieMaeLoansMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis=onit_ReverseLoansMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis=us-gaap_ResidentialMortgageBackedSecuritiesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |