XML 64 R53.htm IDEA: XBRL DOCUMENT v3.24.3

Residential Whole Loans - Realized Credit Losses Net of Recoveries (Details) - Residential whole loan - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2024	Sep. 30, 2023	Sep. 30, 2024	Sep. 30, 2023
Accounts, Notes, Loans and Financing Receivable [Line Items]
Realized credit losses, net of recoveries	$ (7,084)	$ (469)	$ (9,077)	$ 214
Business purpose loans | Single-family transitional loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Realized credit losses, net of recoveries	(2,393)	362	(2,012)	1,461
Business purpose loans | Multifamily transitional loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Realized credit losses, net of recoveries	(3,802)	0	(3,910)	0
Business purpose loans | Single-family rental loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Realized credit losses, net of recoveries	(669)	(212)	(2,123)	246
Non-QM loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Realized credit losses, net of recoveries	0	11	88	872
Legacy RPL/NPL loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Realized credit losses, net of recoveries	(220)	(630)	(1,120)	(2,365)
Other loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Realized credit losses, net of recoveries	$ 0	$ 0	$ 0	$ 0

X

- Definition

Financing Receivable, Realized Credit Losses, Net Of Recoveries

+ References

No definition available.

+ Details

Name:	mfa_FinancingReceivableRealizedCreditLossesNetOfRecoveries
Namespace Prefix:	mfa_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
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

- Details

Name:	us-gaap_FinancialInstrumentAxis=mfa_ResidentialWholeLoanMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis=mfa_BusinessPurposeLoansMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis=mfa_SingleFamilyTransitionalLoansMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis=mfa_MultiFamilyTransitionalLoansMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis=mfa_SingleFamilyRentalLoansMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis=mfa_NonQMLoansMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis=mfa_LegacyReperformingAndNonPerformingLoansMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis=mfa_OtherLoansMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type: