$MFA
MFA FINANCIAL, INC. Stock $mfa

$mfa Overview Financials Valuation SEC Filings Company Website

2024 Q1 Form 10-K Financial Statement

#000105516024000005 Filed on February 22, 2024

Income Statement

Concept	2024 Q1	2023 Q4	2023
Revenue	$176.8M	$223.8M	$605.6M
YoY Change	33.76%	63.68%	25.53%
Cost Of Revenue	$129.0M	$123.4M	$429.1M
YoY Change	38.97%	41.49%	65.78%
Gross Profit	$69.23M	$100.3M	$233.8M
YoY Change	-29.92%	102.8%	-365.44%
Gross Profit Margin	39.15%	44.84%	38.6%
Selling, General & Admin	$37.46M	$31.35M	$129.7M
YoY Change	20.77%	26.17%	15.22%
% of Gross Profit	54.12%	31.24%	55.47%
Research & Development
YoY Change
% of Gross Profit
Depreciation & Amortization	$800.0K	$800.0K	$4.200M
YoY Change	-38.46%	-38.46%	-54.35%
% of Gross Profit	1.16%	0.8%	1.8%
Operating Expenses	$45.95M	$32.28M	$159.2M
YoY Change	9.81%	-0.7%	-16.49%
Operating Profit	$23.27M	$68.06M	$74.63M
YoY Change	-59.13%	301.07%	-126.78%
Interest Expense	$129.0M	-$1.240M	$429.1M
YoY Change	38.97%		65.78%
% of Operating Profit	554.41%	-1.82%	575.03%
Other Income/Expense, Net
YoY Change
Pretax Income	$24.26M	$89.73M	$80.44M
YoY Change	-66.67%	1237.24%	-134.74%
Income Tax	$1.049M	-$17.00K	$278.0K
% Of Pretax Income	4.32%	-0.02%	0.35%
Net Earnings	$23.21M	$81.85M	$80.16M
YoY Change	-68.11%	-5069.7%	-134.62%
Net Earnings / Revenue	13.13%	36.58%	13.24%
Basic Earnings Per Share	$0.14		$0.46
Diluted Earnings Per Share	$0.14	$0.75	$0.46
COMMON SHARES
Basic Shares Outstanding	102.1M shares	101.9M shares	102.2M shares
Diluted Shares Outstanding	105.2M shares		103.6M shares

Balance Sheet

Concept	2024 Q1	2023 Q4	2023
SHORT-TERM ASSETS
Cash & Short-Term Investments	$306.3M	$318.0M	$318.0M
YoY Change	-15.5%	-4.84%	-4.84%
Cash & Equivalents	$306.3M	$318.0M	$318.0M
Short-Term Investments
Other Short-Term Assets
YoY Change
Inventory
Prepaid Expenses
Receivables
Other Receivables
Total Short-Term Assets	$410.9M	$416.9M	$416.9M
YoY Change	-5.6%	3.48%	3.48%
LONG-TERM ASSETS
Property, Plant & Equipment	$37.16M	$37.82M	$37.82M
YoY Change	-4.49%	-4.16%	-4.16%
Goodwill	$61.08M	$61.08M
YoY Change	0.0%	0.0%
Intangibles	$7.200M	$8.000M
YoY Change	-33.94%	-34.43%
Long-Term Investments	$19.80M	$19.80M	$9.787B
YoY Change	-30.04%	-30.04%	24.09%
Other Assets	$222.9M	$170.2M	$170.2M
YoY Change	34.98%	6.45%	6.45%
Total Long-Term Assets	$10.46B	$10.36B	$10.36B
YoY Change	17.88%	18.9%	18.9%
TOTAL ASSETS
Total Short-Term Assets	$410.9M	$416.9M	$416.9M
Total Long-Term Assets	$10.46B	$10.36B	$10.36B
Total Assets	$10.87B	$10.77B	$10.77B
YoY Change	16.78%	18.22%	18.22%
SHORT-TERM LIABILITIES
YoY Change
Accounts Payable
YoY Change
Accrued Expenses	$268.0M	$196.6M	$196.6M
YoY Change	71.88%	36.83%	36.83%
Deferred Revenue
YoY Change
Short-Term Debt	$0.00	$0.00	$0.00
YoY Change
Long-Term Debt Due
YoY Change
Total Short-Term Liabilities	$304.0M	$336.0M	$336.0M
YoY Change	58.61%	7.89%	7.89%
LONG-TERM LIABILITIES
Long-Term Debt	$8.686B	$8.537B	$8.537B
YoY Change	22.31%	25.32%	25.32%
Other Long-Term Liabilities
YoY Change
Total Long-Term Liabilities	$8.686B	$8.537B	$8.537B
YoY Change	22.31%	25.32%	25.32%
TOTAL LIABILITIES
Total Short-Term Liabilities	$304.0M	$336.0M	$336.0M
Total Long-Term Liabilities	$8.686B	$8.537B	$8.537B
Total Liabilities	$8.990B	$8.873B	$8.873B
YoY Change	23.27%	24.56%	24.56%
SHAREHOLDERS EQUITY
Retained Earnings	-$1.840B	-$1.818B
YoY Change	8.86%	5.81%
Common Stock	$1.021M	$1.019M
YoY Change	0.2%	0.1%
Preferred Stock
YoY Change
Treasury Stock (at cost)
YoY Change
Treasury Stock Shares
Shareholders Equity	$1.884B	$1.900B	$1.900B
YoY Change
Total Liabilities & Shareholders Equity	$10.87B	$10.77B	$10.77B
YoY Change	16.78%	18.22%	18.22%

Cashflow Statement

Concept	2024 Q1	2023 Q4	2023
OPERATING ACTIVITIES
Net Income	$23.21M	$81.85M	$80.16M
YoY Change	-68.11%	-5069.7%	-134.62%
Depreciation, Depletion And Amortization	$800.0K	$800.0K	$4.200M
YoY Change	-38.46%	-38.46%	-54.35%
Cash From Operating Activities	$53.47M	$3.839M	$108.7M
YoY Change	-522.06%	-14.86%	-70.3%
INVESTING ACTIVITIES
Capital Expenditures
YoY Change
Acquisitions
YoY Change
Other Investing Activities	-$83.50M	-$309.2M	$11.12M
YoY Change	-40.63%	254.25%	-100.99%
Cash From Investing Activities	-$91.40M	-$309.2M	-$1.550B
YoY Change	-35.68%	259.31%	37.54%
FINANCING ACTIVITIES
Cash Dividend Paid
YoY Change
Common Stock Issuance & Retirement, Net			$7.000K
YoY Change			-99.99%
Debt Paid & Issued, Net
YoY Change
Cash From Financing Activities	$78.90M	340.1M	$1.435B
YoY Change	-58.1%	-1419.47%	68.78%
NET CHANGE
Cash From Operating Activities	$53.47M	3.839M	$108.7M
Cash From Investing Activities	-$91.40M	-309.2M	-$1.550B
Cash From Financing Activities	$78.90M	340.1M	$1.435B
Net Change In Cash	$40.96M	34.73M	-$5.870M
YoY Change	22.24%	-132.36%	-106.55%
FREE CASH FLOW
Cash From Operating Activities	$53.47M	$3.839M	$108.7M
Capital Expenditures
Free Cash Flow
YoY Change

Facts In Submission

Frame	Concept Type	Concept / XBRL Key	Value	Unit
CY2023	us-gaap	Interest Expense InterestExpense	429118000	usd
CY2023	us-gaap	Interest Income Expense Net InterestIncomeExpenseNet	176479000	usd
CY2022	us-gaap	Interest Income Expense Net InterestIncomeExpenseNet	223576000	usd
CY2023	mfa	Reversal Provision For Credit Losses On Residential Whole Loans ReversalProvisionForCreditLossesOnResidentialWholeLoans	-8853000	usd
CY2022	mfa	Reversal Provision For Credit Losses On Residential Whole Loans ReversalProvisionForCreditLossesOnResidentialWholeLoans	-2646000	usd
CY2021	mfa	Reversal Provision For Credit Losses On Residential Whole Loans ReversalProvisionForCreditLossesOnResidentialWholeLoans	-44863000	usd
CY2023	us-gaap	Provision For Other Credit Losses ProvisionForOtherCreditLosses	0	usd
CY2022	us-gaap	Provision For Other Credit Losses ProvisionForOtherCreditLosses	28579000	usd
CY2021	us-gaap	Provision For Other Credit Losses ProvisionForOtherCreditLosses	0	usd
CY2022	us-gaap	Interest Income Expense After Provision For Loan Loss InterestIncomeExpenseAfterProvisionForLoanLoss	197643000	usd
CY2021	us-gaap	Interest Income Expense After Provision For Loan Loss InterestIncomeExpenseAfterProvisionForLoanLoss	286780000	usd
CY2023	us-gaap	Net Income Loss NetIncomeLoss	80164000	usd
CY2020Q4	us-gaap	Stockholders Equity StockholdersEquity	2524802000	usd
CY2021	us-gaap	Net Income Loss NetIncomeLoss	328870000	usd
CY2021	us-gaap	Stock Issued During Period Value New Issues StockIssuedDuringPeriodValueNewIssues	1832000	usd
CY2021	us-gaap	Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue	9038000	usd
CY2021	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	1.540
CY2021	us-gaap	Dividends Common Stock DividendsCommonStock	169275000	usd
CY2021	mfa	Dividends Dividend Equivalent Rights DividendsDividendEquivalentRights	599000	usd
CY2021	us-gaap	Other Comprehensive Income Availableforsale Securities Adjustment Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeAvailableforsaleSecuritiesAdjustmentNetOfTaxPortionAttributableToParent	-32774000	usd
CY2021	mfa	Other Comprehensive Income Loss Change In Fair Value Of Financing Agreements At Fair Value OtherComprehensiveIncomeLossChangeInFairValueOfFinancingAgreementsAtFairValue	-1059000	usd
CY2021Q4	us-gaap	Stockholders Equity StockholdersEquity	2542848000	usd
CY2021	us-gaap	Proceeds From Issuance Of Common Stock ProceedsFromIssuanceOfCommonStock	1825000	usd
CY2023	us-gaap	Payments For Repurchase Of Common Stock PaymentsForRepurchaseOfCommonStock	0	usd
CY2022	us-gaap	Payments For Repurchase Of Common Stock PaymentsForRepurchaseOfCommonStock	102311000	usd
CY2023	us-gaap	Payments Of Dividends Preferred Stock And Preference Stock PaymentsOfDividendsPreferredStockAndPreferenceStock	32875000	usd
CY2023	mfa	Real Estate Investments Disposals RealEstateInvestmentsDisposals	100647000	usd
CY2022	mfa	Real Estate Investments Disposals RealEstateInvestmentsDisposals	105252000	usd
CY2023Q4	us-gaap	Real Estate Investments RealEstateInvestments	110174000	usd
CY2022Q4	us-gaap	Real Estate Investments RealEstateInvestments	130605000	usd
CY2022	mfa	Number Of Real Estate Properties Sold During Period NumberOfRealEstatePropertiesSoldDuringPeriod	416	property
CY2022	us-gaap	Proceeds From Sale Of Real Estate ProceedsFromSaleOfRealEstate	133800000	usd
CY2022	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	-851000	usd
CY2022	us-gaap	Effective Income Tax Rate Reconciliation At Federal Statutory Income Tax Rate EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate	0.210
CY2023	dei	Entity Central Index Key EntityCentralIndexKey	0001055160
CY2023	dei	Amendment Flag AmendmentFlag	false
CY2023	dei	Document Fiscal Year Focus DocumentFiscalYearFocus	2023
CY2023	dei	Document Fiscal Period Focus DocumentFiscalPeriodFocus	FY
CY2022Q2	us-gaap	Stockholders Equity Note Stock Split Conversion Ratio1 StockholdersEquityNoteStockSplitConversionRatio1	0.25
CY2023Q4	us-gaap	Operating Lease Right Of Use Asset Statement Of Financial Position Extensible List OperatingLeaseRightOfUseAssetStatementOfFinancialPositionExtensibleList	http://fasb.org/us-gaap/2023#OtherAssets
CY2022Q4	us-gaap	Operating Lease Right Of Use Asset Statement Of Financial Position Extensible List OperatingLeaseRightOfUseAssetStatementOfFinancialPositionExtensibleList	http://fasb.org/us-gaap/2023#OtherAssets
CY2022Q4	us-gaap	Operating Lease Liability Statement Of Financial Position Extensible List OperatingLeaseLiabilityStatementOfFinancialPositionExtensibleList	http://fasb.org/us-gaap/2023#OtherLiabilities
CY2023Q4	us-gaap	Operating Lease Liability Statement Of Financial Position Extensible List OperatingLeaseLiabilityStatementOfFinancialPositionExtensibleList	http://fasb.org/us-gaap/2023#OtherLiabilities
CY2022Q2	us-gaap	Stockholders Equity Note Stock Split Conversion Ratio1 StockholdersEquityNoteStockSplitConversionRatio1	0.25
CY2023	dei	Document Annual Report DocumentAnnualReport	true
CY2023	dei	Current Fiscal Year End Date CurrentFiscalYearEndDate	--12-31
CY2023	dei	Document Transition Report DocumentTransitionReport	false
CY2023	dei	Entity File Number EntityFileNumber	1-13991
CY2023	dei	Entity Registrant Name EntityRegistrantName	MFA FINANCIAL, INC.
CY2023	dei	Entity Incorporation State Country Code EntityIncorporationStateCountryCode	MD
CY2023	dei	Entity Tax Identification Number EntityTaxIdentificationNumber	13-3974868
CY2023	dei	Entity Address Address Line1 EntityAddressAddressLine1	One Vanderbilt Ave., 48th Floor
CY2023	dei	Entity Address City Or Town EntityAddressCityOrTown	New York
CY2023	dei	Entity Address State Or Province EntityAddressStateOrProvince	NY
CY2023	dei	Entity Address Postal Zip Code EntityAddressPostalZipCode	10017
CY2023	dei	City Area Code CityAreaCode	212
CY2023	dei	Local Phone Number LocalPhoneNumber	207-6400
CY2023	dei	Security12g Title Security12gTitle	None
CY2023	dei	Entity Well Known Seasoned Issuer EntityWellKnownSeasonedIssuer	Yes
CY2023	dei	Entity Voluntary Filers EntityVoluntaryFilers	No
CY2023	dei	Entity Current Reporting Status EntityCurrentReportingStatus	Yes
CY2023	dei	Entity Interactive Data Current EntityInteractiveDataCurrent	Yes
CY2023	dei	Entity Filer Category EntityFilerCategory	Large Accelerated Filer
CY2023	dei	Entity Small Business EntitySmallBusiness	false
CY2023	dei	Entity Emerging Growth Company EntityEmergingGrowthCompany	false
CY2023	dei	Icfr Auditor Attestation Flag IcfrAuditorAttestationFlag	true
CY2023	dei	Document Fin Stmt Error Correction Flag DocumentFinStmtErrorCorrectionFlag	false
CY2023	dei	Entity Shell Company EntityShellCompany	false
CY2023Q2	dei	Entity Public Float EntityPublicFloat	1100000000	usd
CY2024Q1	dei	Entity Common Stock Shares Outstanding EntityCommonStockSharesOutstanding	102082499	shares
CY2023Q4	us-gaap	Mortgage Loans On Real Estate Commercial And Consumer Net MortgageLoansOnRealEstateCommercialAndConsumerNet	9041292000	usd
CY2022Q4	us-gaap	Mortgage Loans On Real Estate Commercial And Consumer Net MortgageLoansOnRealEstateCommercialAndConsumerNet	7518739000	usd
CY2023Q4	us-gaap	Available For Sale Securities Debt Securities AvailableForSaleSecuritiesDebtSecurities	746090000	usd
CY2022Q4	us-gaap	Available For Sale Securities Debt Securities AvailableForSaleSecuritiesDebtSecurities	333364000	usd
CY2023Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	318000000	usd
CY2022Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	334183000	usd
CY2023Q4	us-gaap	Restricted Cash And Cash Equivalents RestrictedCashAndCashEquivalents	170211000	usd
CY2022Q4	us-gaap	Restricted Cash And Cash Equivalents RestrictedCashAndCashEquivalents	159898000	usd
CY2023Q4	us-gaap	Other Assets OtherAssets	497097000	usd
CY2022Q4	us-gaap	Other Assets OtherAssets	766221000	usd
CY2023Q4	us-gaap	Assets Assets	10772690000	usd
CY2022Q4	us-gaap	Assets Assets	9112405000	usd
CY2023Q4	mfa	Financing Agreements Fair Value And Carrying Value FinancingAgreementsFairValueAndCarryingValue	8536745000	usd
CY2022Q4	mfa	Financing Agreements Fair Value And Carrying Value FinancingAgreementsFairValueAndCarryingValue	6812086000	usd
CY2023Q4	us-gaap	Other Liabilities OtherLiabilities	336030000	usd
CY2022Q4	us-gaap	Other Liabilities OtherLiabilities	311470000	usd
CY2023Q4	us-gaap	Liabilities Liabilities	8872775000	usd
CY2022Q4	us-gaap	Liabilities Liabilities	7123556000	usd
CY2023Q4	us-gaap	Commitments And Contingencies CommitmentsAndContingencies		usd
CY2022Q4	us-gaap	Commitments And Contingencies CommitmentsAndContingencies		usd
CY2023Q4	us-gaap	Common Stock Par Or Stated Value Per Share CommonStockParOrStatedValuePerShare	0.01
CY2022Q4	us-gaap	Common Stock Par Or Stated Value Per Share CommonStockParOrStatedValuePerShare	0.01
CY2023Q4	us-gaap	Common Stock Shares Authorized CommonStockSharesAuthorized	874300000	shares
CY2022Q4	us-gaap	Common Stock Shares Authorized CommonStockSharesAuthorized	874300000	shares
CY2023Q4	us-gaap	Common Stock Shares Issued CommonStockSharesIssued	101916000	shares
CY2023Q4	us-gaap	Common Stock Shares Outstanding CommonStockSharesOutstanding	101916000	shares
CY2022Q4	us-gaap	Common Stock Shares Outstanding CommonStockSharesOutstanding	101802000	shares
CY2022Q4	us-gaap	Common Stock Shares Issued CommonStockSharesIssued	101802000	shares
CY2023Q4	us-gaap	Common Stock Value CommonStockValue	1019000	usd
CY2022Q4	us-gaap	Common Stock Value CommonStockValue	1018000	usd
CY2023Q4	us-gaap	Additional Paid In Capital AdditionalPaidInCapital	3698767000	usd
CY2022Q4	us-gaap	Additional Paid In Capital AdditionalPaidInCapital	3684291000	usd
CY2023Q4	us-gaap	Retained Earnings Accumulated Deficit RetainedEarningsAccumulatedDeficit	-1817759000	usd
CY2022Q4	us-gaap	Retained Earnings Accumulated Deficit RetainedEarningsAccumulatedDeficit	-1717991000	usd
CY2023Q4	us-gaap	Accumulated Other Comprehensive Income Loss Net Of Tax AccumulatedOtherComprehensiveIncomeLossNetOfTax	17698000	usd
CY2022Q4	us-gaap	Accumulated Other Comprehensive Income Loss Net Of Tax AccumulatedOtherComprehensiveIncomeLossNetOfTax	21341000	usd
CY2023Q4	us-gaap	Stockholders Equity StockholdersEquity	1899915000	usd
CY2022Q4	us-gaap	Stockholders Equity StockholdersEquity	1988849000	usd
CY2023Q4	us-gaap	Liabilities And Stockholders Equity LiabilitiesAndStockholdersEquity	10772690000	usd
CY2022Q4	us-gaap	Liabilities And Stockholders Equity LiabilitiesAndStockholdersEquity	9112405000	usd
CY2023	us-gaap	Interest And Fee Income Loans Commercial And Residential Real Estate InterestAndFeeIncomeLoansCommercialAndResidentialRealEstate	537883000	usd
CY2022	us-gaap	Interest And Fee Income Loans Commercial And Residential Real Estate InterestAndFeeIncomeLoansCommercialAndResidentialRealEstate	441223000	usd
CY2021	us-gaap	Interest And Fee Income Loans Commercial And Residential Real Estate InterestAndFeeIncomeLoansCommercialAndResidentialRealEstate	303468000	usd
CY2022	us-gaap	Interest Income Securities Mortgage Backed InterestIncomeSecuritiesMortgageBacked	28921000	usd
CY2021	us-gaap	Interest Income Securities Mortgage Backed InterestIncomeSecuritiesMortgageBacked	56690000	usd
CY2021	us-gaap	Other Operating Income OtherOperatingIncome	1800000	usd
CY2023	mfa	Interest Expense Asset Backed And Collateralized Financing Agreements InterestExpenseAssetBackedAndCollateralizedFinancingAgreements	413517000	usd
CY2023	us-gaap	Interest Expense Debt InterestExpenseDebt	15601000	usd
CY2022	us-gaap	Interest Expense Debt InterestExpenseDebt	15760000	usd
CY2021	us-gaap	Interest Expense Debt InterestExpenseDebt	15788000	usd
CY2022	us-gaap	Interest Expense InterestExpense	258843000	usd
CY2021	us-gaap	Interest Expense InterestExpense	120385000	usd
CY2021	us-gaap	Interest Income Expense Net InterestIncomeExpenseNet	241917000	usd
CY2023	us-gaap	Interest Income Expense After Provision For Loan Loss InterestIncomeExpenseAfterProvisionForLoanLoss	185332000	usd
CY2023	mfa	Mortgage Loans On Real Estate Gain Loss On Loans At Fair Value MortgageLoansOnRealEstateGainLossOnLoansAtFairValue	89850000	usd
CY2022	mfa	Mortgage Loans On Real Estate Gain Loss On Loans At Fair Value MortgageLoansOnRealEstateGainLossOnLoansAtFairValue	-866762000	usd
CY2021	mfa	Mortgage Loans On Real Estate Gain Loss On Loans At Fair Value MortgageLoansOnRealEstateGainLossOnLoansAtFairValue	16243000	usd
CY2023	mfa	Impairment And Other Losses Gains On Securities Available For Sale And Other Assets ImpairmentAndOtherLossesGainsOnSecuritiesAvailableForSaleAndOtherAssets	-6225000	usd
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CY2021	mfa	Impairment And Other Losses Gains On Securities Available For Sale And Other Assets ImpairmentAndOtherLossesGainsOnSecuritiesAvailableForSaleAndOtherAssets	-74496000	usd
CY2023	us-gaap	Gains Losses On Sales Of Investment Real Estate GainsLossesOnSalesOfInvestmentRealEstate	9392000	usd
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CY2023	us-gaap	Gain Loss From Price Risk Management Activity GainLossFromPriceRiskManagementActivity	3761000	usd
CY2022	us-gaap	Gain Loss From Price Risk Management Activity GainLossFromPriceRiskManagementActivity	255179000	usd
CY2021	us-gaap	Gain Loss From Price Risk Management Activity GainLossFromPriceRiskManagementActivity	1426000	usd
CY2023	mfa	Fair Value Changes On Securitized Debt FairValueChangesOnSecuritizedDebt	-99589000	usd
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CY2021	mfa	Fair Value Changes On Securitized Debt FairValueChangesOnSecuritizedDebt	15027000	usd
CY2023	mfa	Origination Servicing And Other Fee Income OriginationServicingAndOtherFeeIncome	43384000	usd
CY2022	mfa	Origination Servicing And Other Fee Income OriginationServicingAndOtherFeeIncome	46745000	usd
CY2021	mfa	Origination Servicing And Other Fee Income OriginationServicingAndOtherFeeIncome	22600000	usd
CY2023	mfa	Mortgage Loans On Real Estate Gain Loss On Loans At Carrying Value MortgageLoansOnRealEstateGainLossOnLoansAtCarryingValue	-1240000	usd
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CY2023	us-gaap	Other Operating Income Expense Net OtherOperatingIncomeExpenseNet	11331000	usd
CY2022	us-gaap	Other Operating Income Expense Net OtherOperatingIncomeExpenseNet	8623000	usd
CY2021	us-gaap	Other Operating Income Expense Net OtherOperatingIncomeExpenseNet	9647000	usd
CY2023	mfa	Noninterest Income Loss Net NoninterestIncomeLossNet	63114000	usd
CY2022	mfa	Noninterest Income Loss Net NoninterestIncomeLossNet	-265264000	usd
CY2021	mfa	Noninterest Income Loss Net NoninterestIncomeLossNet	162277000	usd
CY2023	us-gaap	Labor And Related Expense LaborAndRelatedExpense	85799000	usd
CY2022	us-gaap	Labor And Related Expense LaborAndRelatedExpense	76728000	usd
CY2021	us-gaap	Labor And Related Expense LaborAndRelatedExpense	53817000	usd
CY2023	us-gaap	Other General And Administrative Expense OtherGeneralAndAdministrativeExpense	44147000	usd
CY2022	us-gaap	Other General And Administrative Expense OtherGeneralAndAdministrativeExpense	35138000	usd
CY2021	us-gaap	Other General And Administrative Expense OtherGeneralAndAdministrativeExpense	28903000	usd
CY2023	us-gaap	Other Cost And Expense Operating OtherCostAndExpenseOperating	34136000	usd
CY2022	us-gaap	Other Cost And Expense Operating OtherCostAndExpenseOperating	42894000	usd
CY2021	us-gaap	Other Cost And Expense Operating OtherCostAndExpenseOperating	30867000	usd
CY2023	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	4200000	usd
CY2022	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	9200000	usd
CY2021	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	6600000	usd
CY2023	us-gaap	Costs And Expenses CostsAndExpenses	168282000	usd
CY2022	us-gaap	Costs And Expenses CostsAndExpenses	163960000	usd
CY2021	us-gaap	Costs And Expenses CostsAndExpenses	120187000	usd
CY2023	us-gaap	Net Income Loss NetIncomeLoss	80164000	usd
CY2022	us-gaap	Net Income Loss NetIncomeLoss	-231581000	usd
CY2021	us-gaap	Net Income Loss NetIncomeLoss	328870000	usd
CY2023	us-gaap	Preferred Stock Dividends Income Statement Impact PreferredStockDividendsIncomeStatementImpact	32875000	usd
CY2022	us-gaap	Preferred Stock Dividends Income Statement Impact PreferredStockDividendsIncomeStatementImpact	32875000	usd
CY2021	us-gaap	Preferred Stock Dividends Income Statement Impact PreferredStockDividendsIncomeStatementImpact	32875000	usd
CY2023	mfa	Net Income Loss Available To Common Stockholders Basic And Participating Securities NetIncomeLossAvailableToCommonStockholdersBasicAndParticipatingSecurities	47289000	usd
CY2022	mfa	Net Income Loss Available To Common Stockholders Basic And Participating Securities NetIncomeLossAvailableToCommonStockholdersBasicAndParticipatingSecurities	-264456000	usd
CY2021	mfa	Net Income Loss Available To Common Stockholders Basic And Participating Securities NetIncomeLossAvailableToCommonStockholdersBasicAndParticipatingSecurities	295995000	usd
CY2023	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.46
CY2022	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	-2.57
CY2021	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	2.66
CY2023	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.46
CY2022	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	-2.57
CY2021	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	2.63
CY2022	us-gaap	Net Income Loss NetIncomeLoss	-231581000	usd
CY2021	us-gaap	Net Income Loss NetIncomeLoss	328870000	usd
CY2023	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Net Of Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodNetOfTax	-2873000	usd
CY2022	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Net Of Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodNetOfTax	-25492000	usd
CY2021	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Net Of Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodNetOfTax	-32774000	usd
CY2023	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Sale Of Securities Net Of Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesNetOfTax	770000	usd
CY2022	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Sale Of Securities Net Of Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesNetOfTax	0	usd
CY2021	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Sale Of Securities Net Of Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesNetOfTax	0	usd
CY2023	mfa	Other Comprehensive Income Loss Change In Fair Value Of Financing Agreements At Fair Value OtherComprehensiveIncomeLossChangeInFairValueOfFinancingAgreementsAtFairValue	0	usd
CY2022	mfa	Other Comprehensive Income Loss Change In Fair Value Of Financing Agreements At Fair Value OtherComprehensiveIncomeLossChangeInFairValueOfFinancingAgreementsAtFairValue	-1255000	usd
CY2021	mfa	Other Comprehensive Income Loss Change In Fair Value Of Financing Agreements At Fair Value OtherComprehensiveIncomeLossChangeInFairValueOfFinancingAgreementsAtFairValue	-1059000	usd
CY2023	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	-3643000	usd
CY2022	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	-24237000	usd
CY2021	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	-31715000	usd
CY2023	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	76521000	usd
CY2022	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	-255818000	usd
CY2021	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	297155000	usd
CY2023	us-gaap	Preferred Stock Dividends Income Statement Impact PreferredStockDividendsIncomeStatementImpact	32875000	usd
CY2023	mfa	Comprehensive Income Loss To Common Stockholders And Participating Securities ComprehensiveIncomeLossToCommonStockholdersAndParticipatingSecurities	43646000	usd
CY2022	mfa	Comprehensive Income Loss To Common Stockholders And Participating Securities ComprehensiveIncomeLossToCommonStockholdersAndParticipatingSecurities	-288693000	usd
CY2021	mfa	Comprehensive Income Loss To Common Stockholders And Participating Securities ComprehensiveIncomeLossToCommonStockholdersAndParticipatingSecurities	264280000	usd
CY2022Q4	us-gaap	Stockholders Equity StockholdersEquity	1988849000	usd
CY2023	us-gaap	Net Income Loss NetIncomeLoss	80164000	usd
CY2023	us-gaap	Stock Issued During Period Value New Issues StockIssuedDuringPeriodValueNewIssues	-6000	usd
CY2023	us-gaap	Stock Repurchased During Period Value StockRepurchasedDuringPeriodValue	600000	usd
CY2023	us-gaap	Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue	14526000	usd
CY2023	mfa	Adjustments To Additional Paid In Capital Change In Accrued Dividends Attributable To Stock Based Awards AdjustmentsToAdditionalPaidInCapitalChangeInAccruedDividendsAttributableToStockBasedAwards	-3376000	usd
CY2023	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	1.40
CY2023	us-gaap	Dividends Common Stock DividendsCommonStock	142681000	usd
CY2023	mfa	Dividends Dividend Equivalent Rights DividendsDividendEquivalentRights	443000	usd
CY2023	us-gaap	Other Comprehensive Income Availableforsale Securities Adjustment Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeAvailableforsaleSecuritiesAdjustmentNetOfTaxPortionAttributableToParent	-3643000	usd
CY2023Q4	us-gaap	Stockholders Equity StockholdersEquity	1899915000	usd
CY2021Q4	us-gaap	Stockholders Equity StockholdersEquity	2542848000	usd
CY2022	us-gaap	Net Income Loss NetIncomeLoss	-231581000	usd
CY2022	us-gaap	Stock Issued During Period Value New Issues StockIssuedDuringPeriodValueNewIssues	1098000	usd
CY2022	us-gaap	Stock Repurchased During Period Value StockRepurchasedDuringPeriodValue	103253000	usd
CY2022	us-gaap	Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue	11335000	usd
CY2022	mfa	Adjustments To Additional Paid In Capital Change In Accrued Dividends Attributable To Stock Based Awards AdjustmentsToAdditionalPaidInCapitalChangeInAccruedDividendsAttributableToStockBasedAwards	-2432000	usd
CY2022	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	1.67
CY2022	us-gaap	Dividends Common Stock DividendsCommonStock	171426000	usd
CY2022	mfa	Dividends Dividend Equivalent Rights DividendsDividendEquivalentRights	628000	usd
CY2022	us-gaap	Other Comprehensive Income Availableforsale Securities Adjustment Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeAvailableforsaleSecuritiesAdjustmentNetOfTaxPortionAttributableToParent	-25492000	usd
CY2022	mfa	Other Comprehensive Income Loss Change In Fair Value Of Financing Agreements At Fair Value OtherComprehensiveIncomeLossChangeInFairValueOfFinancingAgreementsAtFairValue	-1255000	usd
CY2022Q4	us-gaap	Stockholders Equity StockholdersEquity	1988849000	usd
CY2021	us-gaap	Stock Repurchased During Period Value StockRepurchasedDuringPeriodValue	86393000	usd
CY2021	mfa	Adjustments To Additional Paid In Capital Change In Accrued Dividends Attributable To Stock Based Awards AdjustmentsToAdditionalPaidInCapitalChangeInAccruedDividendsAttributableToStockBasedAwards	-837000	usd
CY2023	us-gaap	Net Income Loss NetIncomeLoss	80164000	usd
CY2022	us-gaap	Net Income Loss NetIncomeLoss	-231581000	usd
CY2021	us-gaap	Net Income Loss NetIncomeLoss	328870000	usd
CY2023	mfa	Residential Whole Loans Gain Loss ResidentialWholeLoansGainLoss	87379000	usd
CY2022	mfa	Residential Whole Loans Gain Loss ResidentialWholeLoansGainLoss	-866762000	usd
CY2021	mfa	Residential Whole Loans Gain Loss ResidentialWholeLoansGainLoss	12931000	usd
CY2023	mfa	Impairment And Other Gains Losses On Debt Securities Available For Sale And Other Portfolio Investments Net ImpairmentAndOtherGainsLossesOnDebtSecuritiesAvailableForSaleAndOtherPortfolioInvestmentsNet	-7058000	usd
CY2022	mfa	Impairment And Other Gains Losses On Debt Securities Available For Sale And Other Portfolio Investments Net ImpairmentAndOtherGainsLossesOnDebtSecuritiesAvailableForSaleAndOtherPortfolioInvestmentsNet	25067000	usd
CY2021	mfa	Impairment And Other Gains Losses On Debt Securities Available For Sale And Other Portfolio Investments Net ImpairmentAndOtherGainsLossesOnDebtSecuritiesAvailableForSaleAndOtherPortfolioInvestmentsNet	-74602000	usd
CY2023	mfa	Net Gain Loss On Real Estate Owned NetGainLossOnRealEstateOwned	9512000	usd
CY2022	mfa	Net Gain Loss On Real Estate Owned NetGainLossOnRealEstateOwned	24473000	usd
CY2021	mfa	Net Gain Loss On Real Estate Owned NetGainLossOnRealEstateOwned	18772000	usd
CY2023	mfa	Accretion And Amortization Of Purchase Discounts AccretionAndAmortizationOfPurchaseDiscounts	18968000	usd
CY2022	mfa	Accretion And Amortization Of Purchase Discounts AccretionAndAmortizationOfPurchaseDiscounts	27314000	usd
CY2021	mfa	Accretion And Amortization Of Purchase Discounts AccretionAndAmortizationOfPurchaseDiscounts	59424000	usd
CY2023	mfa	Provision For Credit And Valuation Losses On Residential Whole Loans And Other Financial Instruments At Carrying Value ProvisionForCreditAndValuationLossesOnResidentialWholeLoansAndOtherFinancialInstrumentsAtCarryingValue	-6845000	usd
CY2022	mfa	Provision For Credit And Valuation Losses On Residential Whole Loans And Other Financial Instruments At Carrying Value ProvisionForCreditAndValuationLossesOnResidentialWholeLoansAndOtherFinancialInstrumentsAtCarryingValue	25933000	usd
CY2021	mfa	Provision For Credit And Valuation Losses On Residential Whole Loans And Other Financial Instruments At Carrying Value ProvisionForCreditAndValuationLossesOnResidentialWholeLoansAndOtherFinancialInstrumentsAtCarryingValue	-48355000	usd
CY2023	us-gaap	Gain Loss On Sale Of Derivatives GainLossOnSaleOfDerivatives	-93828000	usd
CY2022	us-gaap	Gain Loss On Sale Of Derivatives GainLossOnSaleOfDerivatives	247898000	usd
CY2021	us-gaap	Gain Loss On Sale Of Derivatives GainLossOnSaleOfDerivatives	2095000	usd
CY2023	us-gaap	Derivative Gain Loss On Derivative Net DerivativeGainLossOnDerivativeNet	35643000	usd
CY2022	us-gaap	Derivative Gain Loss On Derivative Net DerivativeGainLossOnDerivativeNet	-214754000	usd
CY2021	us-gaap	Derivative Gain Loss On Derivative Net DerivativeGainLossOnDerivativeNet	-574000	usd
CY2023	mfa	Unrealized Gain Loss On Securitized Debt At Fair Value UnrealizedGainLossOnSecuritizedDebtAtFairValue	-86402000	usd
CY2022	mfa	Unrealized Gain Loss On Securitized Debt At Fair Value UnrealizedGainLossOnSecuritizedDebtAtFairValue	290639000	usd
CY2021	mfa	Unrealized Gain Loss On Securitized Debt At Fair Value UnrealizedGainLossOnSecuritizedDebtAtFairValue	14391000	usd
CY2023	mfa	Other Non Cash Losses Included In Net Income OtherNonCashLossesIncludedInNetIncome	31719000	usd
CY2022	mfa	Other Non Cash Losses Included In Net Income OtherNonCashLossesIncludedInNetIncome	31370000	usd
CY2021	mfa	Other Non Cash Losses Included In Net Income OtherNonCashLossesIncludedInNetIncome	31358000	usd
CY2023	us-gaap	Increase Decrease In Other Operating Assets IncreaseDecreaseInOtherOperatingAssets	80930000	usd
CY2022	us-gaap	Increase Decrease In Other Operating Assets IncreaseDecreaseInOtherOperatingAssets	-25482000	usd
CY2021	us-gaap	Increase Decrease In Other Operating Assets IncreaseDecreaseInOtherOperatingAssets	6475000	usd
CY2023	us-gaap	Increase Decrease In Other Operating Liabilities IncreaseDecreaseInOtherOperatingLiabilities	62961000	usd
CY2022	us-gaap	Increase Decrease In Other Operating Liabilities IncreaseDecreaseInOtherOperatingLiabilities	-12114000	usd
CY2021	us-gaap	Increase Decrease In Other Operating Liabilities IncreaseDecreaseInOtherOperatingLiabilities	14046000	usd
CY2023	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	108739000	usd
CY2022	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	355349000	usd
CY2021	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	137803000	usd
CY2023	us-gaap	Payments To Acquire Loans Held For Investment PaymentsToAcquireLoansHeldForInvestment	2914915000	usd
CY2022	us-gaap	Payments To Acquire Loans Held For Investment PaymentsToAcquireLoansHeldForInvestment	3206941000	usd
CY2021	us-gaap	Payments To Acquire Loans Held For Investment PaymentsToAcquireLoansHeldForInvestment	4516971000	usd
CY2023	us-gaap	Proceeds From Sale Of Loans Held For Investment ProceedsFromSaleOfLoansHeldForInvestment	345656000	usd
CY2022	us-gaap	Proceeds From Sale Of Loans Held For Investment ProceedsFromSaleOfLoansHeldForInvestment	0	usd
CY2021	us-gaap	Proceeds From Sale Of Loans Held For Investment ProceedsFromSaleOfLoansHeldForInvestment	0	usd
CY2023	us-gaap	Proceeds From Principal Repayments On Loans And Leases Held For Investment ProceedsFromPrincipalRepaymentsOnLoansAndLeasesHeldForInvestment	1445759000	usd
CY2022	us-gaap	Proceeds From Principal Repayments On Loans And Leases Held For Investment ProceedsFromPrincipalRepaymentsOnLoansAndLeasesHeldForInvestment	1878802000	usd
CY2021	us-gaap	Proceeds From Principal Repayments On Loans And Leases Held For Investment ProceedsFromPrincipalRepaymentsOnLoansAndLeasesHeldForInvestment	2012901000	usd
CY2023	us-gaap	Cash Acquired From Acquisition CashAcquiredFromAcquisition	0	usd
CY2022	us-gaap	Cash Acquired From Acquisition CashAcquiredFromAcquisition	0	usd
CY2021	us-gaap	Cash Acquired From Acquisition CashAcquiredFromAcquisition	6121000	usd
CY2023	us-gaap	Payments To Acquire Investments PaymentsToAcquireInvestments	588915000	usd
CY2022	us-gaap	Payments To Acquire Investments PaymentsToAcquireInvestments	0	usd
CY2021	us-gaap	Payments To Acquire Investments PaymentsToAcquireInvestments	0	usd
CY2023	us-gaap	Proceeds From Sale Of Available For Sale Securities Debt ProceedsFromSaleOfAvailableForSaleSecuritiesDebt	23294000	usd
CY2022	us-gaap	Proceeds From Sale Of Available For Sale Securities Debt ProceedsFromSaleOfAvailableForSaleSecuritiesDebt	15660000	usd
CY2021	us-gaap	Proceeds From Sale Of Available For Sale Securities Debt ProceedsFromSaleOfAvailableForSaleSecuritiesDebt	0	usd
CY2023	us-gaap	Proceeds From Maturities Prepayments And Calls Of Other Investments ProceedsFromMaturitiesPrepaymentsAndCallsOfOtherInvestments	35626000	usd
CY2022	us-gaap	Proceeds From Maturities Prepayments And Calls Of Other Investments ProceedsFromMaturitiesPrepaymentsAndCallsOfOtherInvestments	53121000	usd
CY2021	us-gaap	Proceeds From Maturities Prepayments And Calls Of Other Investments ProceedsFromMaturitiesPrepaymentsAndCallsOfOtherInvestments	157297000	usd
CY2023	us-gaap	Proceeds From Sale Of Real Estate Heldforinvestment ProceedsFromSaleOfRealEstateHeldforinvestment	115026000	usd
CY2022	us-gaap	Proceeds From Sale Of Real Estate Heldforinvestment ProceedsFromSaleOfRealEstateHeldforinvestment	133980000	usd
CY2021	us-gaap	Proceeds From Sale Of Real Estate Heldforinvestment ProceedsFromSaleOfRealEstateHeldforinvestment	187010000	usd
CY2023	us-gaap	Payments For Proceeds From Other Investing Activities PaymentsForProceedsFromOtherInvestingActivities	11121000	usd
CY2022	us-gaap	Payments For Proceeds From Other Investing Activities PaymentsForProceedsFromOtherInvestingActivities	-9450000	usd
CY2021	us-gaap	Payments For Proceeds From Other Investing Activities PaymentsForProceedsFromOtherInvestingActivities	30896000	usd
CY2023	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-1549590000	usd
CY2022	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-1115928000	usd
CY2021	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-2184538000	usd
CY2023	mfa	Principal Payments On Securities Sold Under Agreements To Repurchase And Other Advances PrincipalPaymentsOnSecuritiesSoldUnderAgreementsToRepurchaseAndOtherAdvances	2910832000	usd
CY2022	mfa	Principal Payments On Securities Sold Under Agreements To Repurchase And Other Advances PrincipalPaymentsOnSecuritiesSoldUnderAgreementsToRepurchaseAndOtherAdvances	2971332000	usd
CY2021	mfa	Principal Payments On Securities Sold Under Agreements To Repurchase And Other Advances PrincipalPaymentsOnSecuritiesSoldUnderAgreementsToRepurchaseAndOtherAdvances	1822198000	usd
CY2023	mfa	Proceeds From Securities Sold Under Agreements To Repurchase With Mark To Market Collateral Provisions ProceedsFromSecuritiesSoldUnderAgreementsToRepurchaseWithMarkToMarketCollateralProvisions	3049030000	usd
CY2022	mfa	Proceeds From Securities Sold Under Agreements To Repurchase With Mark To Market Collateral Provisions ProceedsFromSecuritiesSoldUnderAgreementsToRepurchaseWithMarkToMarketCollateralProvisions	2631606000	usd
CY2021	mfa	Proceeds From Securities Sold Under Agreements To Repurchase With Mark To Market Collateral Provisions ProceedsFromSecuritiesSoldUnderAgreementsToRepurchaseWithMarkToMarketCollateralProvisions	3022279000	usd
CY2023	mfa	Principal Payments On Financing Agreements With Non Mark To Market Collateral Provisions PrincipalPaymentsOnFinancingAgreementsWithNonMarkToMarketCollateralProvisions	1997811000	usd
CY2022	mfa	Principal Payments On Financing Agreements With Non Mark To Market Collateral Provisions PrincipalPaymentsOnFinancingAgreementsWithNonMarkToMarketCollateralProvisions	2152143000	usd
CY2021	mfa	Principal Payments On Financing Agreements With Non Mark To Market Collateral Provisions PrincipalPaymentsOnFinancingAgreementsWithNonMarkToMarketCollateralProvisions	1883068000	usd
CY2023	mfa	Proceeds From Securities Sold Under Agreements To Repurchase With Non Mark To Market Collateral Provisions ProceedsFromSecuritiesSoldUnderAgreementsToRepurchaseWithNonMarkToMarketCollateralProvisions	3503400000	usd
CY2022	mfa	Proceeds From Securities Sold Under Agreements To Repurchase With Non Mark To Market Collateral Provisions ProceedsFromSecuritiesSoldUnderAgreementsToRepurchaseWithNonMarkToMarketCollateralProvisions	3676510000	usd
CY2021	mfa	Proceeds From Securities Sold Under Agreements To Repurchase With Non Mark To Market Collateral Provisions ProceedsFromSecuritiesSoldUnderAgreementsToRepurchaseWithNonMarkToMarketCollateralProvisions	2692576000	usd
CY2023	mfa	Payments Made For Securitization Related Cost PaymentsMadeForSecuritizationRelatedCost	12593000	usd
CY2022	mfa	Payments Made For Securitization Related Cost PaymentsMadeForSecuritizationRelatedCost	16390000	usd
CY2021	mfa	Payments Made For Securitization Related Cost PaymentsMadeForSecuritizationRelatedCost	7145000	usd
CY2023	us-gaap	Repayments Of Senior Debt RepaymentsOfSeniorDebt	20228000	usd
CY2022	us-gaap	Repayments Of Senior Debt RepaymentsOfSeniorDebt	0	usd
CY2021	us-gaap	Repayments Of Senior Debt RepaymentsOfSeniorDebt	100000000	usd
CY2023	us-gaap	Proceeds From Issuance Of Common Stock ProceedsFromIssuanceOfCommonStock	-7000	usd
CY2022	us-gaap	Proceeds From Issuance Of Common Stock ProceedsFromIssuanceOfCommonStock	1183000	usd
CY2021	us-gaap	Payments For Repurchase Of Common Stock PaymentsForRepurchaseOfCommonStock	85591000	usd
CY2022	us-gaap	Payments Of Dividends Preferred Stock And Preference Stock PaymentsOfDividendsPreferredStockAndPreferenceStock	32875000	usd
CY2021	us-gaap	Payments Of Dividends Preferred Stock And Preference Stock PaymentsOfDividendsPreferredStockAndPreferenceStock	32875000	usd
CY2023	us-gaap	Payments Of Dividends Common Stock PaymentsOfDividendsCommonStock	143103000	usd
CY2022	us-gaap	Payments Of Dividends Common Stock PaymentsOfDividendsCommonStock	184035000	usd
CY2021	us-gaap	Payments Of Dividends Common Stock PaymentsOfDividendsCommonStock	156140000	usd
CY2023	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	1434981000	usd
CY2022	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	850213000	usd
CY2021	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	1629663000	usd
CY2023	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect	-5870000	usd
CY2022	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect	89634000	usd
CY2021	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect	-417072000	usd
CY2022Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	494081000	usd
CY2021Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	404447000	usd
CY2020Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	821519000	usd
CY2023Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	488211000	usd
CY2022Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	494081000	usd
CY2021Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	404447000	usd
CY2023	us-gaap	Interest Paid Net InterestPaidNet	418135000	usd
CY2022	us-gaap	Interest Paid Net InterestPaidNet	239185000	usd
CY2021	us-gaap	Interest Paid Net InterestPaidNet	116966000	usd
CY2023	us-gaap	Transfer To Other Real Estate TransferToOtherRealEstate	84662000	usd
CY2022	us-gaap	Transfer To Other Real Estate TransferToOtherRealEstate	82911000	usd
CY2021	us-gaap	Transfer To Other Real Estate TransferToOtherRealEstate	72304000	usd
CY2023	mfa	Real Estate Owned Transfer From Other Interest Earning Assets RealEstateOwnedTransferFromOtherInterestEarningAssets	22716000	usd
CY2022	mfa	Real Estate Owned Transfer From Other Interest Earning Assets RealEstateOwnedTransferFromOtherInterestEarningAssets	0	usd
CY2021	mfa	Real Estate Owned Transfer From Other Interest Earning Assets RealEstateOwnedTransferFromOtherInterestEarningAssets	0	usd
CY2023Q4	us-gaap	Dividends Payable Current And Noncurrent DividendsPayableCurrentAndNoncurrent	35789000	usd
CY2022Q4	us-gaap	Dividends Payable Current And Noncurrent DividendsPayableCurrentAndNoncurrent	35769000	usd
CY2021Q4	us-gaap	Dividends Payable Current And Noncurrent DividendsPayableCurrentAndNoncurrent	47751000	usd
CY2023	mfa	Right Of Use Lease And Asset Lease Liability RightOfUseLeaseAndAssetLeaseLiability	0	usd
CY2022	mfa	Right Of Use Lease And Asset Lease Liability RightOfUseLeaseAndAssetLeaseLiability	0	usd
CY2021	mfa	Right Of Use Lease And Asset Lease Liability RightOfUseLeaseAndAssetLeaseLiability	40893000	usd
CY2023	mfa	Termination Of Outstanding Preferred Equity Interests At Acquisition TerminationOfOutstandingPreferredEquityInterestsAtAcquisition	0	usd
CY2022	mfa	Termination Of Outstanding Preferred Equity Interests At Acquisition TerminationOfOutstandingPreferredEquityInterestsAtAcquisition	0	usd
CY2021	mfa	Termination Of Outstanding Preferred Equity Interests At Acquisition TerminationOfOutstandingPreferredEquityInterestsAtAcquisition	22030000	usd
CY2023	mfa	Financial Receivable For Sale Of Unsettled Residential Whole Loans FinancialReceivableForSaleOfUnsettledResidentialWholeLoans	14033000	usd
CY2022	mfa	Financial Receivable For Sale Of Unsettled Residential Whole Loans FinancialReceivableForSaleOfUnsettledResidentialWholeLoans	275656000	usd
CY2021	mfa	Financial Receivable For Sale Of Unsettled Residential Whole Loans FinancialReceivableForSaleOfUnsettledResidentialWholeLoans	0	usd
CY2023	mfa	Payable For Unsettled Investment Purchases PayableForUnsettledInvestmentPurchases	103654000	usd
CY2022	mfa	Payable For Unsettled Investment Purchases PayableForUnsettledInvestmentPurchases	132025000	usd
CY2021	mfa	Payable For Unsettled Investment Purchases PayableForUnsettledInvestmentPurchases	0	usd
CY2023	mfa	Deconsolidation Of Securitized Agency Eligible Investor Loans And Related Debt DeconsolidationOfSecuritizedAgencyEligibleInvestorLoansAndRelatedDebt	0	usd
CY2022	mfa	Deconsolidation Of Securitized Agency Eligible Investor Loans And Related Debt DeconsolidationOfSecuritizedAgencyEligibleInvestorLoansAndRelatedDebt	490952000	usd
CY2021	mfa	Deconsolidation Of Securitized Agency Eligible Investor Loans And Related Debt DeconsolidationOfSecuritizedAgencyEligibleInvestorLoansAndRelatedDebt	0	usd
CY2023	us-gaap	Nature Of Operations NatureOfOperations	Organization <div><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%"> </span></div>MFA Financial, Inc. (the “Company”) was incorporated in Maryland on July 24, 1997 and began operations on April 10, 1998. The Company has elected to be treated as a real estate investment trust (“REIT”) for U.S. federal income tax purposes. In order to maintain its qualification as a REIT, the Company must comply with a number of requirements under federal tax law, including that it must distribute at least 90% of its annual REIT taxable income to its stockholders. The Company has elected to treat certain of its subsidiaries as taxable REIT subsidiaries (“TRS”). In general, a TRS may hold assets and engage in activities that the Company cannot hold or engage in directly and generally may engage in any real estate or non-real estate related business (see Note 8).
CY2023	mfa	Number Of Days Considered To Classify Loans Delinquent NumberOfDaysConsideredToClassifyLoansDelinquent	P60D
CY2023	mfa	Ratio Loan To Value RatioLoanToValue	0.80
CY2023Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	318000000	usd
CY2022Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	334200000	usd
CY2023Q4	us-gaap	Money Market Funds At Carrying Value MoneyMarketFundsAtCarryingValue	151300000	usd
CY2022Q4	us-gaap	Money Market Funds At Carrying Value MoneyMarketFundsAtCarryingValue	267100000	usd
CY2023Q4	us-gaap	Restricted Cash And Cash Equivalents RestrictedCashAndCashEquivalents	170200000	usd
CY2022Q4	us-gaap	Restricted Cash And Cash Equivalents RestrictedCashAndCashEquivalents	159900000	usd
CY2023Q4	us-gaap	Intangible Assets Net Excluding Goodwill IntangibleAssetsNetExcludingGoodwill	8000000	usd
CY2022Q4	us-gaap	Intangible Assets Net Excluding Goodwill IntangibleAssetsNetExcludingGoodwill	12200000	usd
CY2021Q4	us-gaap	Financing Receivable Allowance For Credit Losses FinancingReceivableAllowanceForCreditLosses	39447000	usd
CY2023	mfa	Commitment Period CommitmentPeriod	P10Y
CY2023Q4	mfa	Loans Including Fair Value Loans Credit Impaired Loans And Other Loans At Carrying Value LoansIncludingFairValueLoansCreditImpairedLoansAndOtherLoansAtCarryingValue	9000000000	usd
CY2022Q4	mfa	Loans Including Fair Value Loans Credit Impaired Loans And Other Loans At Carrying Value LoansIncludingFairValueLoansCreditImpairedLoansAndOtherLoansAtCarryingValue	7500000000	usd
CY2023Q4	us-gaap	Allowance For Loan And Lease Losses Real Estate AllowanceForLoanAndLeaseLossesRealEstate	20451000	usd
CY2022Q4	us-gaap	Allowance For Loan And Lease Losses Real Estate AllowanceForLoanAndLeaseLossesRealEstate	35314000	usd
CY2023Q4	mfa	Mortgage Loans On Real Estate Residential MortgageLoansOnRealEstateResidential	9041292000	usd
CY2022Q4	mfa	Mortgage Loans On Real Estate Residential MortgageLoansOnRealEstateResidential	7518739000	usd
CY2023Q4	mfa	Residential Whole Loans ResidentialWholeLoans	25401	loan
CY2022Q4	mfa	Residential Whole Loans ResidentialWholeLoans	23843	loan
CY2022Q4	us-gaap	Financing Receivable Allowance For Credit Losses FinancingReceivableAllowanceForCreditLosses	35314000	usd
CY2023Q1	us-gaap	Provision For Loan Losses Expensed ProvisionForLoanLossesExpensed	315000	usd
CY2023Q1	us-gaap	Financing Receivable Allowance For Credit Losses Write Offs FinancingReceivableAllowanceForCreditLossesWriteOffs	2567000	usd
CY2023Q1	us-gaap	Financing Receivable Allowance For Credit Losses FinancingReceivableAllowanceForCreditLosses	33062000	usd
CY2023Q2	us-gaap	Provision For Loan Losses Expensed ProvisionForLoanLossesExpensed	265000	usd
CY2023Q2	us-gaap	Financing Receivable Allowance For Credit Losses Write Offs FinancingReceivableAllowanceForCreditLossesWriteOffs	2292000	usd
CY2023Q2	us-gaap	Financing Receivable Allowance For Credit Losses FinancingReceivableAllowanceForCreditLosses	31035000	usd
CY2023Q3	us-gaap	Provision For Loan Losses Expensed ProvisionForLoanLossesExpensed	-1252000	usd
CY2023Q3	us-gaap	Financing Receivable Allowance For Credit Losses Write Offs FinancingReceivableAllowanceForCreditLossesWriteOffs	1226000	usd
CY2023Q3	us-gaap	Financing Receivable Allowance For Credit Losses FinancingReceivableAllowanceForCreditLosses	28557000	usd
CY2023Q4	us-gaap	Provision For Loan Losses Expensed ProvisionForLoanLossesExpensed	-7838000	usd
CY2023Q4	us-gaap	Financing Receivable Allowance For Credit Losses Write Offs FinancingReceivableAllowanceForCreditLossesWriteOffs	269000	usd
CY2023Q4	us-gaap	Financing Receivable Allowance For Credit Losses FinancingReceivableAllowanceForCreditLosses	20451000	usd
CY2022Q1	us-gaap	Provision For Loan Losses Expensed ProvisionForLoanLossesExpensed	-3467000	usd
CY2022Q1	us-gaap	Financing Receivable Allowance For Credit Losses Write Offs FinancingReceivableAllowanceForCreditLossesWriteOffs	523000	usd
CY2022Q1	us-gaap	Financing Receivable Allowance For Credit Losses FinancingReceivableAllowanceForCreditLosses	35457000	usd
CY2022Q2	us-gaap	Provision For Loan Losses Expensed ProvisionForLoanLossesExpensed	1830000	usd
CY2022Q2	us-gaap	Financing Receivable Allowance For Credit Losses Write Offs FinancingReceivableAllowanceForCreditLossesWriteOffs	360000	usd
CY2022Q2	us-gaap	Financing Receivable Allowance For Credit Losses FinancingReceivableAllowanceForCreditLosses	36927000	usd
CY2022Q3	us-gaap	Provision For Loan Losses Expensed ProvisionForLoanLossesExpensed	547000	usd
CY2022Q3	us-gaap	Financing Receivable Allowance For Credit Losses Write Offs FinancingReceivableAllowanceForCreditLossesWriteOffs	282000	usd
CY2022Q3	us-gaap	Financing Receivable Allowance For Credit Losses FinancingReceivableAllowanceForCreditLosses	37192000	usd
CY2022Q4	us-gaap	Provision For Loan Losses Expensed ProvisionForLoanLossesExpensed	-1576000	usd
CY2022Q4	us-gaap	Financing Receivable Allowance For Credit Losses Write Offs FinancingReceivableAllowanceForCreditLossesWriteOffs	302000	usd
CY2022Q4	us-gaap	Financing Receivable Allowance For Credit Losses FinancingReceivableAllowanceForCreditLosses	35314000	usd
CY2023	us-gaap	Financing Receivable Nonaccrual Interest Income FinancingReceivableNonaccrualInterestIncome	14900000	usd
CY2023	mfa	Financing Receivable Modified In Period Number FinancingReceivableModifiedInPeriodNumber	4	loan
CY2023	us-gaap	Financing Receivable Modified Weighted Average Term Increase From Modification FinancingReceivableModifiedWeightedAverageTermIncreaseFromModification	P23M
CY2023Q4	us-gaap	Financing Receivable Modifications Recorded Investment FinancingReceivableModificationsRecordedInvestment	563000	usd
CY2023Q4	us-gaap	Financing Receivable Originated In Current Fiscal Year FinancingReceivableOriginatedInCurrentFiscalYear	0	usd
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CY2023Q4	us-gaap	Financing Receivable Originated Two Years Before Latest Fiscal Year FinancingReceivableOriginatedTwoYearsBeforeLatestFiscalYear	56739000	usd
CY2023Q4	us-gaap	Financing Receivable Originated Three Years Before Latest Fiscal Year FinancingReceivableOriginatedThreeYearsBeforeLatestFiscalYear	202042000	usd
CY2023Q4	us-gaap	Financing Receivable Originated Four Years Before Latest Fiscal Year FinancingReceivableOriginatedFourYearsBeforeLatestFiscalYear	526503000	usd
CY2023Q4	us-gaap	Financing Receivable Originated Five Or More Years Before Latest Fiscal Year FinancingReceivableOriginatedFiveOrMoreYearsBeforeLatestFiscalYear	764950000	usd
CY2023Q4	us-gaap	Notes Receivable Gross NotesReceivableGross	1550234000	usd
CY2023	us-gaap	Financing Receivable Year One Originated Current Fiscal Year Writeoff FinancingReceivableYearOneOriginatedCurrentFiscalYearWriteoff	0	usd
CY2023	us-gaap	Financing Receivable Year Two Originated Fiscal Year Before Current Fiscal Year Writeoff FinancingReceivableYearTwoOriginatedFiscalYearBeforeCurrentFiscalYearWriteoff	0	usd
CY2023	us-gaap	Financing Receivable Year Three Originated Two Years Before Current Fiscal Year Writeoff FinancingReceivableYearThreeOriginatedTwoYearsBeforeCurrentFiscalYearWriteoff	14000	usd
CY2023	us-gaap	Financing Receivable Year Four Originated Three Years Before Current Fiscal Year Writeoff FinancingReceivableYearFourOriginatedThreeYearsBeforeCurrentFiscalYearWriteoff	278000	usd
CY2023	us-gaap	Financing Receivable Year Five Originated Four Years Before Current Fiscal Year Writeoff FinancingReceivableYearFiveOriginatedFourYearsBeforeCurrentFiscalYearWriteoff	3779000	usd
CY2023	us-gaap	Financing Receivable Originated More Than Five Years Before Current Fiscal Year Writeoff FinancingReceivableOriginatedMoreThanFiveYearsBeforeCurrentFiscalYearWriteoff	2283000	usd
CY2023	us-gaap	Financing Receivable Allowance For Credit Losses Write Offs FinancingReceivableAllowanceForCreditLossesWriteOffs	6354000	usd
CY2023	us-gaap	Equity Securities Fv Ni Unrealized Gain Loss EquitySecuritiesFvNiUnrealizedGainLoss	7341000	usd
CY2022	us-gaap	Equity Securities Fv Ni Unrealized Gain Loss EquitySecuritiesFvNiUnrealizedGainLoss	-3230000	usd
CY2021	us-gaap	Equity Securities Fv Ni Unrealized Gain Loss EquitySecuritiesFvNiUnrealizedGainLoss	1607000	usd
CY2023	us-gaap	Equity Securities Fv Ni Gain Loss EquitySecuritiesFvNiGainLoss	908000	usd
CY2022	us-gaap	Equity Securities Fv Ni Gain Loss EquitySecuritiesFvNiGainLoss	84000	usd
CY2021	us-gaap	Equity Securities Fv Ni Gain Loss EquitySecuritiesFvNiGainLoss	0	usd
CY2023	mfa	Impairment And Other Net Loss Gain On Securities ImpairmentAndOtherNetLossGainOnSecurities	-8249000	usd
CY2022	mfa	Impairment And Other Net Loss Gain On Securities ImpairmentAndOtherNetLossGainOnSecurities	3146000	usd
CY2021	mfa	Impairment And Other Net Loss Gain On Securities ImpairmentAndOtherNetLossGainOnSecurities	-1607000	usd
CY2023	us-gaap	Unrealized Gain Loss On Investments UnrealizedGainLossOnInvestments	6180000	usd
CY2022	us-gaap	Unrealized Gain Loss On Investments UnrealizedGainLossOnInvestments	-21921000	usd
CY2021	us-gaap	Unrealized Gain Loss On Investments UnrealizedGainLossOnInvestments	0	usd
CY2023	us-gaap	Realized Investment Gains Losses RealizedInvestmentGainsLosses	-5869000	usd
CY2022	us-gaap	Realized Investment Gains Losses RealizedInvestmentGainsLosses	0	usd
CY2021	us-gaap	Realized Investment Gains Losses RealizedInvestmentGainsLosses	0	usd
CY2023	mfa	Reversal Of Impairment Impairment Other Portfolio Investments ReversalOfImpairmentImpairmentOtherPortfolioInvestments	2335000	usd
CY2022	mfa	Reversal Of Impairment Impairment Other Portfolio Investments ReversalOfImpairmentImpairmentOtherPortfolioInvestments	0	usd
CY2021	mfa	Reversal Of Impairment Impairment Other Portfolio Investments ReversalOfImpairmentImpairmentOtherPortfolioInvestments	-33956000	usd
CY2023	us-gaap	Gain Loss On Sale Of Stock In Subsidiary Or Equity Method Investee GainLossOnSaleOfStockInSubsidiaryOrEquityMethodInvestee	0	usd
CY2022	us-gaap	Gain Loss On Sale Of Stock In Subsidiary Or Equity Method Investee GainLossOnSaleOfStockInSubsidiaryOrEquityMethodInvestee	0	usd
CY2021	us-gaap	Gain Loss On Sale Of Stock In Subsidiary Or Equity Method Investee GainLossOnSaleOfStockInSubsidiaryOrEquityMethodInvestee	38933000	usd
CY2023	mfa	Impairment And Other Losses Gains On Securities Available For Sale And Other Assets ImpairmentAndOtherLossesGainsOnSecuritiesAvailableForSaleAndOtherAssets	-6225000	usd
CY2022	mfa	Impairment And Other Losses Gains On Securities Available For Sale And Other Assets ImpairmentAndOtherLossesGainsOnSecuritiesAvailableForSaleAndOtherAssets	25067000	usd
CY2021	mfa	Impairment And Other Losses Gains On Securities Available For Sale And Other Assets ImpairmentAndOtherLossesGainsOnSecuritiesAvailableForSaleAndOtherAssets	-74496000	usd
CY2022Q4	us-gaap	Accumulated Other Comprehensive Income Loss Available For Sale Securities Adjustment Net Of Tax AccumulatedOtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentNetOfTax	21341000	usd
CY2021Q4	us-gaap	Accumulated Other Comprehensive Income Loss Available For Sale Securities Adjustment Net Of Tax AccumulatedOtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentNetOfTax	46833000	usd
CY2020Q4	us-gaap	Accumulated Other Comprehensive Income Loss Available For Sale Securities Adjustment Net Of Tax AccumulatedOtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentNetOfTax	79607000	usd
CY2023	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Sale Of Securities Net Of Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesNetOfTax	770000	usd
CY2022	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Sale Of Securities Net Of Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesNetOfTax	0	usd
CY2021	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Sale Of Securities Net Of Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesNetOfTax	0	usd
CY2023	mfa	Other Comprehensive Income Loss Available For Sale Securities Adjustment Excluding Cumulative Effect Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentExcludingCumulativeEffectNetOfTaxPortionAttributableToParent	-3643000	usd
CY2022	mfa	Other Comprehensive Income Loss Available For Sale Securities Adjustment Excluding Cumulative Effect Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentExcludingCumulativeEffectNetOfTaxPortionAttributableToParent	-25492000	usd
CY2021	mfa	Other Comprehensive Income Loss Available For Sale Securities Adjustment Excluding Cumulative Effect Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentExcludingCumulativeEffectNetOfTaxPortionAttributableToParent	-32774000	usd
CY2023Q4	us-gaap	Accumulated Other Comprehensive Income Loss Available For Sale Securities Adjustment Net Of Tax AccumulatedOtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentNetOfTax	17698000	usd
CY2022Q4	us-gaap	Accumulated Other Comprehensive Income Loss Available For Sale Securities Adjustment Net Of Tax AccumulatedOtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentNetOfTax	21341000	usd
CY2021Q4	us-gaap	Accumulated Other Comprehensive Income Loss Available For Sale Securities Adjustment Net Of Tax AccumulatedOtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentNetOfTax	46833000	usd
CY2023Q4	us-gaap	Loans Receivable Held For Sale Amount LoansReceivableHeldForSaleAmount	0	usd
CY2022Q4	us-gaap	Loans Receivable Held For Sale Amount LoansReceivableHeldForSaleAmount	275656000	usd
CY2023Q4	us-gaap	Real Estate Investments RealEstateInvestments	110174000	usd
CY2022Q4	us-gaap	Real Estate Investments RealEstateInvestments	130605000	usd
CY2023Q4	mfa	Commercial Real Estate Owned CommercialRealEstateOwned	22717000	usd
CY2022Q4	mfa	Commercial Real Estate Owned CommercialRealEstateOwned	0	usd
CY2023Q4	us-gaap	Goodwill Goodwill	61076000	usd
CY2022Q4	us-gaap	Goodwill Goodwill	61076000	usd
CY2023Q4	us-gaap	Intangible Assets Net Excluding Goodwill IntangibleAssetsNetExcludingGoodwill	8000000	usd
CY2022Q4	us-gaap	Intangible Assets Net Excluding Goodwill IntangibleAssetsNetExcludingGoodwill	12200000	usd
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CY2023Q4	mfa	Commercial Loans Receivable CommercialLoansReceivable	51426000	usd
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CY2023Q4	us-gaap	Interest Receivable InterestReceivable	98924000	usd
CY2022Q4	us-gaap	Interest Receivable InterestReceivable	68704000	usd
CY2023Q4	mfa	Principal Receivable Advances Suspense Accounts And Other PrincipalReceivableAdvancesSuspenseAccountsAndOther	24084000	usd
CY2022Q4	mfa	Principal Receivable Advances Suspense Accounts And Other PrincipalReceivableAdvancesSuspenseAccountsAndOther	23463000	usd
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CY2022Q4	us-gaap	Operating Lease Right Of Use Asset OperatingLeaseRightOfUseAsset	39459000	usd
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CY2022Q4	us-gaap	Prepaid Expense And Other Assets PrepaidExpenseAndOtherAssets	65240000	usd
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CY2023Q4	us-gaap	Finite Lived Intangible Assets Accumulated Amortization FiniteLivedIntangibleAssetsAccumulatedAmortization	20000000	usd
CY2022Q4	us-gaap	Finite Lived Intangible Assets Accumulated Amortization FiniteLivedIntangibleAssetsAccumulatedAmortization	15800000	usd
CY2023Q4	us-gaap	Lessee Operating Lease Discount Rate LesseeOperatingLeaseDiscountRate	0.075
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CY2023Q4	us-gaap	Real Estate Investments RealEstateInvestments	110200000	usd
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CY2022Q4	us-gaap	Real Estate Investments RealEstateInvestments	130600000	usd
CY2023Q4	us-gaap	Real Estate Acquired Through Foreclosure RealEstateAcquiredThroughForeclosure	110100000	usd
CY2022Q4	us-gaap	Real Estate Investments RealEstateInvestments	130605000	usd
CY2021Q4	us-gaap	Real Estate Investments RealEstateInvestments	156223000	usd
CY2023	mfa	Real Estate Investments Additions RealEstateInvestmentsAdditions	421000	usd
CY2022	mfa	Real Estate Investments Additions RealEstateInvestmentsAdditions	978000	usd
CY2023Q4	us-gaap	Number Of Real Estate Properties NumberOfRealEstateProperties	300	property
CY2022Q4	us-gaap	Number Of Real Estate Properties NumberOfRealEstateProperties	388	property
CY2023	mfa	Gain Loss Recorded On Transfer From Residential Whole Loans To Real Estate Owned GainLossRecordedOnTransferFromResidentialWholeLoansToRealEstateOwned	-400000	usd
CY2022	mfa	Gain Loss Recorded On Transfer From Residential Whole Loans To Real Estate Owned GainLossRecordedOnTransferFromResidentialWholeLoansToRealEstateOwned	-1200000	usd
CY2023	mfa	Number Of Real Estate Properties Sold During Period NumberOfRealEstatePropertiesSoldDuringPeriod	342	property
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CY2021	us-gaap	Gain Loss From Price Risk Management Activity GainLossFromPriceRiskManagementActivity	1426000	usd
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CY2021	mfa	Expense On Swap Fixed Pay Leg ExpenseOnSwapFixedPayLeg	703000	usd
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CY2021	us-gaap	Unrealized Gain Loss On Derivatives UnrealizedGainLossOnDerivatives	70000	usd
CY2023	mfa	Derivatives Price Alignment Expense On Margin Collateral Received DerivativesPriceAlignmentExpenseOnMarginCollateralReceived	11697000	usd
CY2022	mfa	Derivatives Price Alignment Expense On Margin Collateral Received DerivativesPriceAlignmentExpenseOnMarginCollateralReceived	2762000	usd
CY2021	mfa	Derivatives Price Alignment Expense On Margin Collateral Received DerivativesPriceAlignmentExpenseOnMarginCollateralReceived	0	usd
CY2023	us-gaap	Realized Gain Loss Security Sold Short Operating RealizedGainLossSecuritySoldShortOperating	0	usd
CY2022	us-gaap	Realized Gain Loss Security Sold Short Operating RealizedGainLossSecuritySoldShortOperating	39187000	usd
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CY2023	us-gaap	Gain Loss From Price Risk Management Activity GainLossFromPriceRiskManagementActivity	3761000	usd
CY2022	us-gaap	Gain Loss From Price Risk Management Activity GainLossFromPriceRiskManagementActivity	255179000	usd
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CY2022Q4	us-gaap	Debt Weighted Average Interest Rate DebtWeightedAverageInterestRate	0.0346
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CY2022Q4	mfa	Repurchase Agreements Number Of Counterparties RepurchaseAgreementsNumberOfCounterparties	12	counterparty
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CY2023Q4	mfa	Payable For Purchase Of Unsettled Securities PayableForPurchaseOfUnsettledSecurities	103654000	usd
CY2022Q4	mfa	Payable For Purchase Of Unsettled Securities PayableForPurchaseOfUnsettledSecurities	132026000	usd
CY2023Q4	mfa	Dividends And Dividend Equivalents Payable DividendsAndDividendEquivalentsPayable	35789000	usd
CY2022Q4	mfa	Dividends And Dividend Equivalents Payable DividendsAndDividendEquivalentsPayable	35769000	usd
CY2023Q4	us-gaap	Operating Lease Liability OperatingLeaseLiability	43576000	usd
CY2022Q4	us-gaap	Operating Lease Liability OperatingLeaseLiability	45314000	usd
CY2023Q4	us-gaap	Interest Payable Current And Noncurrent InterestPayableCurrentAndNoncurrent	30834000	usd
CY2022Q4	us-gaap	Interest Payable Current And Noncurrent InterestPayableCurrentAndNoncurrent	23040000	usd
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CY2022Q4	us-gaap	Accrued Liabilities And Other Liabilities AccruedLiabilitiesAndOtherLiabilities	75321000	usd
CY2023Q4	us-gaap	Other Liabilities OtherLiabilities	336030000	usd
CY2022Q4	us-gaap	Other Liabilities OtherLiabilities	311470000	usd
CY2023Q4	mfa	Real Estate Investment Trusts Reit Taxable Income Distribution Objective Percent RealEstateInvestmentTrustsREITTaxableIncomeDistributionObjectivePercent	1
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CY2022Q4	mfa	Deferred Tax Assets Unrealized Mark To Market Impairments And Loss Provisions DeferredTaxAssetsUnrealizedMarkToMarketImpairmentsAndLossProvisions	12609000	usd
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CY2022Q4	mfa	Deferred Tax Assets Other Realized Unrealized Treatment Differences DeferredTaxAssetsOtherRealizedUnrealizedTreatmentDifferences	-28620000	usd
CY2023Q4	us-gaap	Deferred Tax Assets Gross DeferredTaxAssetsGross	72360000	usd
CY2022Q4	us-gaap	Deferred Tax Assets Gross DeferredTaxAssetsGross	81644000	usd
CY2023Q4	us-gaap	Deferred Tax Assets Valuation Allowance DeferredTaxAssetsValuationAllowance	72360000	usd
CY2022Q4	us-gaap	Deferred Tax Assets Valuation Allowance DeferredTaxAssetsValuationAllowance	81644000	usd
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CY2022Q4	us-gaap	Deferred Tax Assets Net DeferredTaxAssetsNet	0	usd
CY2023Q4	us-gaap	Deferred Tax Assets Operating Loss Carryforwards Domestic DeferredTaxAssetsOperatingLossCarryforwardsDomestic	332200000	usd
CY2023	us-gaap	Current Federal Tax Expense Benefit CurrentFederalTaxExpenseBenefit	-21000	usd
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CY2022	us-gaap	Current State And Local Tax Expense Benefit CurrentStateAndLocalTaxExpenseBenefit	263000	usd
CY2021	us-gaap	Current State And Local Tax Expense Benefit CurrentStateAndLocalTaxExpenseBenefit	644000	usd
CY2023	us-gaap	Current Income Tax Expense Benefit CurrentIncomeTaxExpenseBenefit	-21000	usd
CY2022	us-gaap	Current Income Tax Expense Benefit CurrentIncomeTaxExpenseBenefit	-1046000	usd
CY2021	us-gaap	Current Income Tax Expense Benefit CurrentIncomeTaxExpenseBenefit	2669000	usd
CY2023	us-gaap	Deferred Federal Income Tax Expense Benefit DeferredFederalIncomeTaxExpenseBenefit	251000	usd
CY2022	us-gaap	Deferred Federal Income Tax Expense Benefit DeferredFederalIncomeTaxExpenseBenefit	166000	usd
CY2021	us-gaap	Deferred Federal Income Tax Expense Benefit DeferredFederalIncomeTaxExpenseBenefit	0	usd
CY2023	us-gaap	Deferred State And Local Income Tax Expense Benefit DeferredStateAndLocalIncomeTaxExpenseBenefit	48000	usd
CY2022	us-gaap	Deferred State And Local Income Tax Expense Benefit DeferredStateAndLocalIncomeTaxExpenseBenefit	29000	usd
CY2021	us-gaap	Deferred State And Local Income Tax Expense Benefit DeferredStateAndLocalIncomeTaxExpenseBenefit	0	usd
CY2023	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	299000	usd
CY2022	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	195000	usd
CY2021	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	0	usd
CY2023	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	278000	usd
CY2021	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	2669000	usd
CY2023	us-gaap	Effective Income Tax Rate Reconciliation At Federal Statutory Income Tax Rate EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate	0.210
CY2021	us-gaap	Effective Income Tax Rate Reconciliation At Federal Statutory Income Tax Rate EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate	0.210
CY2023	mfa	Effective Income Tax Rate Reconciliation Non Taxable Reit Income Dividends Paid Deduction EffectiveIncomeTaxRateReconciliationNonTaxableREITIncomeDividendsPaidDeduction	0.349
CY2022	mfa	Effective Income Tax Rate Reconciliation Non Taxable Reit Income Dividends Paid Deduction EffectiveIncomeTaxRateReconciliationNonTaxableREITIncomeDividendsPaidDeduction	-0.026
CY2021	mfa	Effective Income Tax Rate Reconciliation Non Taxable Reit Income Dividends Paid Deduction EffectiveIncomeTaxRateReconciliationNonTaxableREITIncomeDividendsPaidDeduction	0.046
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CY2021	mfa	Effective Income Tax Rate Reconciliation Other Differences In Taxable Income Loss From Gaap EffectiveIncomeTaxRateReconciliationOtherDifferencesInTaxableIncomeLossFromGAAP	-0.047
CY2023	us-gaap	Effective Income Tax Rate Reconciliation State And Local Income Taxes EffectiveIncomeTaxRateReconciliationStateAndLocalIncomeTaxes	0
CY2022	us-gaap	Effective Income Tax Rate Reconciliation State And Local Income Taxes EffectiveIncomeTaxRateReconciliationStateAndLocalIncomeTaxes	0
CY2021	us-gaap	Effective Income Tax Rate Reconciliation State And Local Income Taxes EffectiveIncomeTaxRateReconciliationStateAndLocalIncomeTaxes	0
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CY2022	us-gaap	Effective Income Tax Rate Reconciliation Change In Deferred Tax Assets Valuation Allowance EffectiveIncomeTaxRateReconciliationChangeInDeferredTaxAssetsValuationAllowance	-0.101
CY2021	us-gaap	Effective Income Tax Rate Reconciliation Change In Deferred Tax Assets Valuation Allowance EffectiveIncomeTaxRateReconciliationChangeInDeferredTaxAssetsValuationAllowance	-0.111
CY2023	us-gaap	Effective Income Tax Rate Continuing Operations EffectiveIncomeTaxRateContinuingOperations	0.003
CY2022	us-gaap	Effective Income Tax Rate Continuing Operations EffectiveIncomeTaxRateContinuingOperations	0.005
CY2021	us-gaap	Effective Income Tax Rate Continuing Operations EffectiveIncomeTaxRateContinuingOperations	0.006
CY2023	us-gaap	Operating Lease Expense OperatingLeaseExpense	6700000	usd
CY2022	us-gaap	Operating Lease Expense OperatingLeaseExpense	6500000	usd
CY2021	us-gaap	Operating Lease Expense OperatingLeaseExpense	4000000	usd
CY2023Q4	us-gaap	Lessee Operating Lease Liability Payments Due Next Twelve Months LesseeOperatingLeaseLiabilityPaymentsDueNextTwelveMonths	6068000	usd
CY2023Q4	us-gaap	Lessee Operating Lease Liability Payments Due Year Two LesseeOperatingLeaseLiabilityPaymentsDueYearTwo	5212000	usd
CY2023Q4	us-gaap	Lessee Operating Lease Liability Payments Due Year Three LesseeOperatingLeaseLiabilityPaymentsDueYearThree	4839000	usd
CY2023Q4	us-gaap	Lessee Operating Lease Liability Payments Due Year Four LesseeOperatingLeaseLiabilityPaymentsDueYearFour	5119000	usd
CY2023Q4	us-gaap	Lessee Operating Lease Liability Payments Due Year Five LesseeOperatingLeaseLiabilityPaymentsDueYearFive	5055000	usd
CY2023Q4	us-gaap	Lessee Operating Lease Liability Payments Due After Year Five LesseeOperatingLeaseLiabilityPaymentsDueAfterYearFive	41944000	usd
CY2023Q4	us-gaap	Lessee Operating Lease Liability Payments Due LesseeOperatingLeaseLiabilityPaymentsDue	68237000	usd
CY2023Q4	us-gaap	Lessee Operating Lease Liability Undiscounted Excess Amount LesseeOperatingLeaseLiabilityUndiscountedExcessAmount	24661000	usd
CY2023Q4	us-gaap	Operating Lease Liability OperatingLeaseLiability	43576000	usd
CY2013Q2	mfa	Maximum Times Series B Receives No Dividends In Order For Voting Rights MaximumTimesSeriesBReceivesNoDividendsInOrderForVotingRights	6	quarter
CY2023Q4	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	0.350
CY2023Q3	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	0.350
CY2023Q2	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	0.350
CY2023Q1	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	0.350
CY2022Q4	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	0.350
CY2022Q3	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	0.440
CY2022Q2	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	0.440
CY2022Q1	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	0.440
CY2021Q4	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	0.440
CY2021Q3	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	0.400
CY2021Q2	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	0.400
CY2021Q1	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	0.300
CY2023Q4	us-gaap	Dividends Payable Current And Noncurrent DividendsPayableCurrentAndNoncurrent	35800000	usd
CY2022Q4	us-gaap	Dividends Payable Current And Noncurrent DividendsPayableCurrentAndNoncurrent	35800000	usd
CY2022Q1	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	0.44
CY2022Q1	us-gaap	Common Stock Dividends Per Share Cash Paid CommonStockDividendsPerShareCashPaid	0.11
CY2021Q4	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	0.44
CY2021Q3	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	0.40
CY2021Q4	us-gaap	Common Stock Dividends Per Share Cash Paid CommonStockDividendsPerShareCashPaid	0.11
CY2021Q3	us-gaap	Common Stock Dividends Per Share Cash Paid CommonStockDividendsPerShareCashPaid	0.10
CY2021Q2	us-gaap	Common Stock Dividends Per Share Cash Paid CommonStockDividendsPerShareCashPaid	0.10
CY2021Q1	us-gaap	Common Stock Dividends Per Share Cash Paid CommonStockDividendsPerShareCashPaid	0.075
CY2023	us-gaap	Investment Company Distribution To Shareholders Per Share InvestmentCompanyDistributionToShareholdersPerShare	0.4108
CY2022	us-gaap	Investment Company Distribution To Shareholders Per Share InvestmentCompanyDistributionToShareholdersPerShare	1.76
CY2021	us-gaap	Investment Company Distribution To Shareholders Per Share InvestmentCompanyDistributionToShareholdersPerShare	1.0512
CY2022Q1	us-gaap	Stock Repurchase Program Authorized Amount1 StockRepurchaseProgramAuthorizedAmount1	250000000	usd
CY2020Q4	us-gaap	Stock Repurchase Program Authorized Amount1 StockRepurchaseProgramAuthorizedAmount1	250000000	usd
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CY2022	us-gaap	Stock Repurchased During Period Shares StockRepurchasedDuringPeriodShares	6476746	shares
CY2021	us-gaap	Stock Repurchased During Period Shares StockRepurchasedDuringPeriodShares	5025374	shares
CY2023	us-gaap	Treasury Stock Acquired Average Cost Per Share TreasuryStockAcquiredAverageCostPerShare	15.80
CY2022	us-gaap	Treasury Stock Acquired Average Cost Per Share TreasuryStockAcquiredAverageCostPerShare	17.04
CY2023	us-gaap	Treasury Stock Value Acquired Cost Method TreasuryStockValueAcquiredCostMethod	102100000	usd
CY2022	us-gaap	Treasury Stock Value Acquired Cost Method TreasuryStockValueAcquiredCostMethod	85600000	usd
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CY2022	mfa	Payments For Fees Related To Repurchase Of Shares PaymentsForFeesRelatedToRepurchaseOfShares	201000	usd
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CY2023	us-gaap	Reclassification From Aoci Current Period Net Of Tax Attributable To Parent ReclassificationFromAociCurrentPeriodNetOfTaxAttributableToParent	770000	usd
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CY2022	us-gaap	Oci Before Reclassifications Net Of Tax Attributable To Parent OciBeforeReclassificationsNetOfTaxAttributableToParent	-24237000	usd
CY2022	us-gaap	Reclassification From Aoci Current Period Net Of Tax Attributable To Parent ReclassificationFromAociCurrentPeriodNetOfTaxAttributableToParent	0	usd
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CY2021	us-gaap	Reclassification From Aoci Current Period Net Of Tax Attributable To Parent ReclassificationFromAociCurrentPeriodNetOfTaxAttributableToParent	0	usd
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CY2022	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	103153000	shares
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CY2022	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	-2.57
CY2021	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	2.66
CY2023	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	47289000	usd
CY2022	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	-265083000	usd
CY2021	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	294951000	usd
CY2023	us-gaap	Undistributed Earnings Loss Available To Common Shareholders Diluted UndistributedEarningsLossAvailableToCommonShareholdersDiluted	0	usd
CY2022	us-gaap	Undistributed Earnings Loss Available To Common Shareholders Diluted UndistributedEarningsLossAvailableToCommonShareholdersDiluted	0	usd
CY2021	us-gaap	Undistributed Earnings Loss Available To Common Shareholders Diluted UndistributedEarningsLossAvailableToCommonShareholdersDiluted	1044000	usd
CY2023	us-gaap	Interest On Convertible Debt Net Of Tax InterestOnConvertibleDebtNetOfTax	0	usd
CY2022	us-gaap	Interest On Convertible Debt Net Of Tax InterestOnConvertibleDebtNetOfTax	0	usd
CY2023	us-gaap	Net Income Loss Available To Common Stockholders Diluted NetIncomeLossAvailableToCommonStockholdersDiluted	47289000	usd
CY2022	us-gaap	Net Income Loss Available To Common Stockholders Diluted NetIncomeLossAvailableToCommonStockholdersDiluted	-265083000	usd
CY2021	us-gaap	Net Income Loss Available To Common Stockholders Diluted NetIncomeLossAvailableToCommonStockholdersDiluted	311663000	usd
CY2023	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	102215000	shares
CY2022	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	103153000	shares
CY2021	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	110704000	shares
CY2023	us-gaap	Incremental Common Shares Attributable To Share Based Payment Arrangements IncrementalCommonSharesAttributableToShareBasedPaymentArrangements	1363000	shares
CY2022	us-gaap	Incremental Common Shares Attributable To Share Based Payment Arrangements IncrementalCommonSharesAttributableToShareBasedPaymentArrangements	0	shares
CY2021	us-gaap	Incremental Common Shares Attributable To Share Based Payment Arrangements IncrementalCommonSharesAttributableToShareBasedPaymentArrangements	757000	shares
CY2023	us-gaap	Incremental Common Shares Attributable To Conversion Of Debt Securities IncrementalCommonSharesAttributableToConversionOfDebtSecurities	0	shares
CY2022	us-gaap	Incremental Common Shares Attributable To Conversion Of Debt Securities IncrementalCommonSharesAttributableToConversionOfDebtSecurities	0	shares
CY2021	us-gaap	Incremental Common Shares Attributable To Conversion Of Debt Securities IncrementalCommonSharesAttributableToConversionOfDebtSecurities	7230000	shares
CY2023	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	103578000	shares
CY2022	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	103153000	shares
CY2021	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	118691000	shares
CY2023	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.46
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CY2023Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Number Of Shares Available For Grant ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAvailableForGrant	5300000	shares
CY2023	us-gaap	Allocated Share Based Compensation Expense AllocatedShareBasedCompensationExpense	15035000	usd
CY2022	us-gaap	Allocated Share Based Compensation Expense AllocatedShareBasedCompensationExpense	11338000	usd
CY2021	us-gaap	Allocated Share Based Compensation Expense AllocatedShareBasedCompensationExpense	9043000	usd
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CY2022Q4	us-gaap	Assets Fair Value Disclosure AssetsFairValueDisclosure	6060888000	usd
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CY2023Q4	mfa	Other Real Estate Fair Value OtherRealEstateFairValue	84700000	usd
CY2022Q4	mfa	Other Real Estate Fair Value OtherRealEstateFairValue	82900000	usd
CY2023Q4	mfa	Loans Including Fair Value Loans Credit Impaired Loans And Other Loans At Carrying Value LoansIncludingFairValueLoansCreditImpairedLoansAndOtherLoansAtCarryingValue	9000000000	usd
CY2022Q4	mfa	Loans Including Fair Value Loans Credit Impaired Loans And Other Loans At Carrying Value LoansIncludingFairValueLoansCreditImpairedLoansAndOtherLoansAtCarryingValue	7500000000	usd
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CY2023	mfa	Fair Value Changes On Securitized Debt FairValueChangesOnSecuritizedDebt	-99589000	usd
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CY2023	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	4200000	usd
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CY2022	us-gaap	Interest Income Expense After Provision For Loan Loss InterestIncomeExpenseAfterProvisionForLoanLoss	197643000	usd
CY2022	mfa	Mortgage Loans On Real Estate Gain Loss On Loans At Fair Value MortgageLoansOnRealEstateGainLossOnLoansAtFairValue	-866762000	usd
CY2022	mfa	Impairment And Other Losses Gains On Securities Available For Sale And Other Assets ImpairmentAndOtherLossesGainsOnSecuritiesAvailableForSaleAndOtherAssets	25067000	usd
CY2022	us-gaap	Gains Losses On Sales Of Investment Real Estate GainsLossesOnSalesOfInvestmentRealEstate	25379000	usd
CY2022	us-gaap	Gain Loss From Price Risk Management Activity GainLossFromPriceRiskManagementActivity	255179000	usd
CY2022	mfa	Fair Value Changes On Securitized Debt FairValueChangesOnSecuritizedDebt	290639000	usd
CY2022	mfa	Origination Servicing And Other Fee Income OriginationServicingAndOtherFeeIncome	46745000	usd
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CY2022	us-gaap	Other Cost And Expense Operating OtherCostAndExpenseOperating	42894000	usd
CY2022	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	9200000	usd
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CY2022	us-gaap	Preferred Stock Dividends Income Statement Impact PreferredStockDividendsIncomeStatementImpact	32875000	usd
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CY2021	us-gaap	Interest And Dividend Income Operating InterestAndDividendIncomeOperating	362302000	usd
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CY2021	us-gaap	Interest Income Expense Net InterestIncomeExpenseNet	241917000	usd
CY2021	mfa	Reversal Provision For Credit Losses On Residential Whole Loans ReversalProvisionForCreditLossesOnResidentialWholeLoans	-44863000	usd
CY2021	us-gaap	Interest Income Expense After Provision For Loan Loss InterestIncomeExpenseAfterProvisionForLoanLoss	286780000	usd
CY2021	mfa	Mortgage Loans On Real Estate Gain Loss On Loans At Fair Value MortgageLoansOnRealEstateGainLossOnLoansAtFairValue	16243000	usd
CY2021	mfa	Impairment And Other Losses Gains On Securities Available For Sale And Other Assets ImpairmentAndOtherLossesGainsOnSecuritiesAvailableForSaleAndOtherAssets	-74496000	usd
CY2021	us-gaap	Gains Losses On Sales Of Investment Real Estate GainsLossesOnSalesOfInvestmentRealEstate	22838000	usd
CY2021	us-gaap	Gain Loss From Price Risk Management Activity GainLossFromPriceRiskManagementActivity	1426000	usd
CY2021	mfa	Fair Value Changes On Securitized Debt FairValueChangesOnSecuritizedDebt	15027000	usd
CY2021	mfa	Origination Servicing And Other Fee Income OriginationServicingAndOtherFeeIncome	22600000	usd
CY2021	us-gaap	Other Operating Income Expense Net OtherOperatingIncomeExpenseNet	9647000	usd
CY2021	mfa	Noninterest Income Loss Net NoninterestIncomeLossNet	162277000	usd
CY2021	us-gaap	Labor And Related Expense LaborAndRelatedExpense	53817000	usd
CY2021	us-gaap	Other General And Administrative Expense OtherGeneralAndAdministrativeExpense	28903000	usd
CY2021	us-gaap	Other Cost And Expense Operating OtherCostAndExpenseOperating	30867000	usd
CY2021	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	6600000	usd
CY2021	us-gaap	Net Income Loss NetIncomeLoss	328870000	usd
CY2021	us-gaap	Preferred Stock Dividends Income Statement Impact PreferredStockDividendsIncomeStatementImpact	32875000	usd
CY2021	mfa	Net Income Loss Available To Common Stockholders Basic And Participating Securities NetIncomeLossAvailableToCommonStockholdersBasicAndParticipatingSecurities	295995000	usd
CY2023Q4	us-gaap	Assets Assets	10772690000	usd
CY2022Q4	us-gaap	Assets Assets	9112405000	usd
CY2023	dei	Auditor Name AuditorName	KPMG LLP
CY2023	dei	Auditor Location AuditorLocation	New York, New York
CY2023	dei	Auditor Firm AuditorFirmId	185

Files In Submission

Name	View Source	Status
0001055160-24-000005-index-headers.html	Edgar Link	pending
0001055160-24-000005-index.html	Edgar Link	pending
0001055160-24-000005.txt	Edgar Link	pending
0001055160-24-000005-xbrl.zip	Edgar Link	pending
aex1016xformoftrsuawardagmt.htm	Edgar Link	pending
aex1017xformofprsuawardagmt.htm	Edgar Link	pending
exhibit103amendno2datedaso.htm	Edgar Link	pending
exhibit108agreemententered.htm	Edgar Link	pending
exhibit109amendedandrestat.htm	Edgar Link	pending
exhibit21subsidiariesofthe.htm	Edgar Link	pending
exhibit231consentofkpmg123.htm	Edgar Link	pending
exhibit311certificationofc.htm	Edgar Link	pending
exhibit312certificationofc.htm	Edgar Link	pending
exhibit321certificationofc.htm	Edgar Link	pending
exhibit322certificationofc.htm	Edgar Link	pending
exhibit41-descriptionofthe.htm	Edgar Link	pending
exhibit971-mfafinancialinc.htm	Edgar Link	pending
Financial_Report.xlsx	Edgar Link	pending
MetaLinks.json	Edgar Link	pending
mfa-20231231.htm	Edgar Link	pending
mfa-20231231.xsd	Edgar Link	pending
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mfa-20231231_cal.xml	Edgar Link	unprocessable
mfa-20231231_def.xml	Edgar Link	unprocessable
mfa-20231231_lab.xml	Edgar Link	unprocessable
mfa-20231231_pre.xml	Edgar Link	unprocessable
mfa-20231231_htm.xml	Edgar Link	completed
R109.htm	Edgar Link	pending
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report.css	Edgar Link	pending
Show.js	Edgar Link	pending
FilingSummary.xml	Edgar Link	unprocessable

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$MFA
MFA FINANCIAL, INC. Stock $mfa

2024 Q1 Form 10-K Financial Statement

#000105516024000005 Filed on February 22, 2024

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

Files In Submission

$MFA MFA FINANCIAL, INC. Stock $mfa

2024 Q1 Form 10-K Financial Statement

#000105516024000005 Filed on February 22, 2024

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

Files In Submission

$MFA
MFA FINANCIAL, INC. Stock $mfa