$MFA
MFA FINANCIAL, INC. Stock $mfa

$mfa Overview Financials Valuation SEC Filings Company Website

2021 Q2 Form 10-Q Financial Statement

#000105516021000015 Filed on August 05, 2021

Income Statement

Concept	2021 Q2	2020 Q2
Revenue	$84.53M	$102.8M
YoY Change	-17.76%	-29.09%
Cost Of Revenue	$55.63M	$88.00M
YoY Change	-36.79%	3.53%
Gross Profit	$159.0M	$80.60M
YoY Change	97.3%	-30.99%
Gross Profit Margin	188.13%	78.42%
Selling, General & Admin	$32.00M	$16.00M
YoY Change	100.01%	15.94%
% of Gross Profit	20.12%	19.85%
Research & Development
YoY Change
% of Gross Profit
Depreciation & Amortization	$0.00	$400.0K
YoY Change	-100.0%	-42.86%
% of Gross Profit	0.0%	0.5%
Operating Expenses	$13.69M	-$61.00M
YoY Change	-122.43%	-356.3%
Operating Profit	$145.3M	$141.6M
YoY Change	2.64%	52.26%
Interest Expense	$25.56M	$87.99M
YoY Change	-70.96%	3.47%
% of Operating Profit	17.58%	62.14%
Other Income/Expense, Net
YoY Change
Pretax Income	$152.2M	$96.60M
YoY Change	57.59%	3.87%
Income Tax	$733.0K
% Of Pretax Income	0.48%
Net Earnings	$66.71M	$96.58M
YoY Change	-30.92%	3.8%
Net Earnings / Revenue	78.93%	93.97%
Basic Earnings Per Share	$0.53	$0.19
Diluted Earnings Per Share	$0.53	$0.19
COMMON SHARES
Basic Shares Outstanding	110.4M shares	453.2M shares
Diluted Shares Outstanding	111.0M shares	482.5M shares

Balance Sheet

Concept	2021 Q2	2020 Q2
SHORT-TERM ASSETS
Cash & Short-Term Investments	$906.4M	$666.0M
YoY Change	36.1%	648.31%
Cash & Equivalents	$906.4M	$666.2M
Short-Term Investments
Other Short-Term Assets
YoY Change
Inventory
Prepaid Expenses
Receivables
Other Receivables
Total Short-Term Assets	$942.6M	$666.0M
YoY Change	41.54%	648.31%
LONG-TERM ASSETS
Property, Plant & Equipment	$38.14M
YoY Change
Goodwill
YoY Change
Intangibles
YoY Change
Long-Term Investments	$5.908B	$6.417B
YoY Change	-7.93%	-48.59%
Other Assets	$8.839M	$8.000M
YoY Change	10.49%	-74.19%
Total Long-Term Assets	$6.266B	$6.901B
YoY Change	-9.21%	-47.39%
TOTAL ASSETS
Total Short-Term Assets	$942.6M	$666.0M
Total Long-Term Assets	$6.266B	$6.901B
Total Assets	$7.208B	$7.567B
YoY Change	-4.74%	-42.71%
SHORT-TERM LIABILITIES
YoY Change
Accounts Payable
YoY Change
Accrued Expenses	$77.57M	$35.00M
YoY Change	121.63%	-28.57%
Deferred Revenue
YoY Change
Short-Term Debt	$0.00	$0.00
YoY Change		-100.0%
Long-Term Debt Due
YoY Change
Total Short-Term Liabilities	$253.1M	$35.00M
YoY Change	623.09%	-99.6%
LONG-TERM LIABILITIES
Long-Term Debt	$4.429B	$5.011B
YoY Change	-11.62%	384.15%
Other Long-Term Liabilities
YoY Change
Total Long-Term Liabilities	$4.429B	$5.011B
YoY Change	-11.62%	384.15%
TOTAL LIABILITIES
Total Short-Term Liabilities	$253.1M	$35.00M
Total Long-Term Liabilities	$4.429B	$5.011B
Total Liabilities	$4.682B	$5.046B
YoY Change	-7.22%	-48.53%
SHAREHOLDERS EQUITY
Retained Earnings	-$1.347B	-$1.452B
YoY Change	-7.19%	127.41%
Common Stock	$4.408M	$4.532M
YoY Change	-2.74%	0.58%
Preferred Stock
YoY Change
Treasury Stock (at cost)
YoY Change
Treasury Stock Shares
Shareholders Equity	$2.527B	$2.521B
YoY Change
Total Liabilities & Shareholders Equity	$7.208B	$7.567B
YoY Change	-4.74%	-42.71%

Cashflow Statement

Concept	2021 Q2	2020 Q2
OPERATING ACTIVITIES
Net Income	$66.71M	$96.58M
YoY Change	-30.92%	3.8%
Depreciation, Depletion And Amortization	$0.00	$400.0K
YoY Change	-100.0%	-42.86%
Cash From Operating Activities	$72.40M	$43.40M
YoY Change	66.81%	-11.07%
INVESTING ACTIVITIES
Capital Expenditures	-$39.19M
YoY Change
Acquisitions
YoY Change
Other Investing Activities	-$266.8M	$4.583B
YoY Change	-105.82%	-2007.99%
Cash From Investing Activities	-$306.0M	$4.583B
YoY Change	-106.68%	-2002.53%
FINANCING ACTIVITIES
Cash Dividend Paid
YoY Change
Common Stock Issuance & Retirement, Net
YoY Change
Debt Paid & Issued, Net
YoY Change
Cash From Financing Activities	362.9M	-4.286B
YoY Change	-108.47%	-2318.48%
NET CHANGE
Cash From Operating Activities	72.40M	43.40M
Cash From Investing Activities	-306.0M	4.583B
Cash From Financing Activities	362.9M	-4.286B
Net Change In Cash	129.3M	340.5M
YoY Change	-62.02%	30854.55%
FREE CASH FLOW
Cash From Operating Activities	$72.40M	$43.40M
Capital Expenditures	-$39.19M
Free Cash Flow	$111.6M
YoY Change

Facts In Submission

Frame	Concept Type	Concept / XBRL Key	Value	Unit
	dei	Entity Central Index Key EntityCentralIndexKey	0001055160
	dei	Amendment Flag AmendmentFlag	false
	dei	Current Fiscal Year End Date CurrentFiscalYearEndDate	--12-31
	dei	Document Fiscal Year Focus DocumentFiscalYearFocus	2021
	dei	Document Fiscal Period Focus DocumentFiscalPeriodFocus	Q2
	dei	Document Type DocumentType	10-Q
	dei	Document Quarterly Report DocumentQuarterlyReport	true
	dei	Document Period End Date DocumentPeriodEndDate	2021-06-30
	dei	Document Transition Report DocumentTransitionReport	false
	dei	Entity File Number EntityFileNumber	1-13991
	dei	Entity Registrant Name EntityRegistrantName	MFA FINANCIAL, INC.
	dei	Entity Incorporation State Country Code EntityIncorporationStateCountryCode	MD
	dei	Entity Tax Identification Number EntityTaxIdentificationNumber	13-3974868
	dei	Entity Address Address Line1 EntityAddressAddressLine1	One Vanderbilt Ave., 48th Floor
	dei	Entity Address City Or Town EntityAddressCityOrTown	New York
	dei	Entity Address State Or Province EntityAddressStateOrProvince	NY
	dei	Entity Address Postal Zip Code EntityAddressPostalZipCode	10017
	dei	City Area Code CityAreaCode	212
	dei	Local Phone Number LocalPhoneNumber	207-6400
	dei	Entity Current Reporting Status EntityCurrentReportingStatus	Yes
	dei	Entity Interactive Data Current EntityInteractiveDataCurrent	Yes
	dei	Entity Filer Category EntityFilerCategory	Large Accelerated Filer
	dei	Entity Small Business EntitySmallBusiness	false
	dei	Entity Emerging Growth Company EntityEmergingGrowthCompany	false
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CY2021Q2	us-gaap	Net Income Loss NetIncomeLoss	66714000	USD
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	us-gaap	Net Income Loss NetIncomeLoss	152236000	USD
	us-gaap	Net Income Loss NetIncomeLoss	-812417000	USD
CY2021Q2	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Net Of Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodNetOfTax	-9589000	USD
CY2020Q2	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Net Of Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodNetOfTax	48715000	USD
	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Net Of Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodNetOfTax	-13444000	USD
	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Net Of Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodNetOfTax	393503000	USD
CY2021Q2	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Sale Of Securities Net Of Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesNetOfTax	0	USD
CY2020Q2	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Sale Of Securities Net Of Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesNetOfTax	144736000	USD
	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Sale Of Securities Net Of Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesNetOfTax	0	USD
	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Sale Of Securities Net Of Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesNetOfTax	389067000	USD
CY2021Q2	us-gaap	Other Than Temporary Impairment Losses Investments Portion In Other Comprehensive Income Loss Tax Including Portion Attributable To Noncontrolling Interest Availableforsale Securities OtherThanTemporaryImpairmentLossesInvestmentsPortionInOtherComprehensiveIncomeLossTaxIncludingPortionAttributableToNoncontrollingInterestAvailableforsaleSecurities	0	USD
CY2020Q2	us-gaap	Other Than Temporary Impairment Losses Investments Portion In Other Comprehensive Income Loss Tax Including Portion Attributable To Noncontrolling Interest Availableforsale Securities OtherThanTemporaryImpairmentLossesInvestmentsPortionInOtherComprehensiveIncomeLossTaxIncludingPortionAttributableToNoncontrollingInterestAvailableforsaleSecurities	0	USD
	us-gaap	Other Than Temporary Impairment Losses Investments Portion In Other Comprehensive Income Loss Tax Including Portion Attributable To Noncontrolling Interest Availableforsale Securities OtherThanTemporaryImpairmentLossesInvestmentsPortionInOtherComprehensiveIncomeLossTaxIncludingPortionAttributableToNoncontrollingInterestAvailableforsaleSecurities	0	USD
	us-gaap	Other Than Temporary Impairment Losses Investments Portion In Other Comprehensive Income Loss Tax Including Portion Attributable To Noncontrolling Interest Availableforsale Securities OtherThanTemporaryImpairmentLossesInvestmentsPortionInOtherComprehensiveIncomeLossTaxIncludingPortionAttributableToNoncontrollingInterestAvailableforsaleSecurities	-344269000	USD
CY2021Q2	us-gaap	Other Comprehensive Income Loss Cash Flow Hedge Gain Loss After Reclassification And Tax OtherComprehensiveIncomeLossCashFlowHedgeGainLossAfterReclassificationAndTax	0	USD
CY2020Q2	us-gaap	Other Comprehensive Income Loss Cash Flow Hedge Gain Loss After Reclassification And Tax OtherComprehensiveIncomeLossCashFlowHedgeGainLossAfterReclassificationAndTax	0	USD
	us-gaap	Other Comprehensive Income Loss Cash Flow Hedge Gain Loss After Reclassification And Tax OtherComprehensiveIncomeLossCashFlowHedgeGainLossAfterReclassificationAndTax	0	USD
	us-gaap	Other Comprehensive Income Loss Cash Flow Hedge Gain Loss After Reclassification And Tax OtherComprehensiveIncomeLossCashFlowHedgeGainLossAfterReclassificationAndTax	-50126000	USD
CY2021Q2	mfa	Other Comprehensive Income Loss Change In Fair Value Of Financing Agreements At Fair Value OtherComprehensiveIncomeLossChangeInFairValueOfFinancingAgreementsAtFairValue	-491000	USD
CY2020Q2	mfa	Other Comprehensive Income Loss Change In Fair Value Of Financing Agreements At Fair Value OtherComprehensiveIncomeLossChangeInFairValueOfFinancingAgreementsAtFairValue	0	USD
	mfa	Other Comprehensive Income Loss Change In Fair Value Of Financing Agreements At Fair Value OtherComprehensiveIncomeLossChangeInFairValueOfFinancingAgreementsAtFairValue	-726000	USD
	mfa	Other Comprehensive Income Loss Change In Fair Value Of Financing Agreements At Fair Value OtherComprehensiveIncomeLossChangeInFairValueOfFinancingAgreementsAtFairValue	0	USD
CY2021Q2	mfa	Other Comprehensive Income Loss Amortizationof De Designated Hedging Instrumentsafter Reclassificationand Tax OtherComprehensiveIncomeLossAmortizationofDeDesignatedHedgingInstrumentsafterReclassificationandTax	0	USD
CY2020Q2	mfa	Other Comprehensive Income Loss Amortizationof De Designated Hedging Instrumentsafter Reclassificationand Tax OtherComprehensiveIncomeLossAmortizationofDeDesignatedHedgingInstrumentsafterReclassificationandTax	64032000	USD
	mfa	Other Comprehensive Income Loss Amortizationof De Designated Hedging Instrumentsafter Reclassificationand Tax OtherComprehensiveIncomeLossAmortizationofDeDesignatedHedgingInstrumentsafterReclassificationandTax	0	USD
	mfa	Other Comprehensive Income Loss Amortizationof De Designated Hedging Instrumentsafter Reclassificationand Tax OtherComprehensiveIncomeLossAmortizationofDeDesignatedHedgingInstrumentsafterReclassificationandTax	65625000	USD
CY2021Q2	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	-9098000	USD
CY2020Q2	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	-31989000	USD
	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	-12718000	USD
	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	-324334000	USD
CY2021Q2	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	57616000	USD
CY2020Q2	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	64589000	USD
	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	139518000	USD
	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	-1136751000	USD
CY2021Q2	us-gaap	Preferred Stock Dividends Income Statement Impact PreferredStockDividendsIncomeStatementImpact	8219000	USD
CY2020Q2	us-gaap	Preferred Stock Dividends Income Statement Impact PreferredStockDividendsIncomeStatementImpact	8144000	USD
	us-gaap	Preferred Stock Dividends Income Statement Impact PreferredStockDividendsIncomeStatementImpact	16438000	USD
	us-gaap	Preferred Stock Dividends Income Statement Impact PreferredStockDividendsIncomeStatementImpact	13359000	USD
CY2021Q2	mfa	Comprehensive Income Loss To Common Stockholders And Participating Securities ComprehensiveIncomeLossToCommonStockholdersAndParticipatingSecurities	49397000	USD
CY2020Q2	mfa	Comprehensive Income Loss To Common Stockholders And Participating Securities ComprehensiveIncomeLossToCommonStockholdersAndParticipatingSecurities	56445000	USD
	mfa	Comprehensive Income Loss To Common Stockholders And Participating Securities ComprehensiveIncomeLossToCommonStockholdersAndParticipatingSecurities	123080000	USD
	mfa	Comprehensive Income Loss To Common Stockholders And Participating Securities ComprehensiveIncomeLossToCommonStockholdersAndParticipatingSecurities	-1150110000	USD
CY2020Q4	us-gaap	Stockholders Equity StockholdersEquity	2524802000	USD
CY2021Q1	us-gaap	Net Income Loss NetIncomeLoss	85522000	USD
CY2021Q1	us-gaap	Stock Issued During Period Value New Issues StockIssuedDuringPeriodValueNewIssues	382000	USD
CY2021Q1	us-gaap	Stock Repurchased And Retired During Period Value StockRepurchasedAndRetiredDuringPeriodValue	25136000	USD
CY2021Q1	us-gaap	Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue	1686000	USD
CY2021Q1	us-gaap	Adjustments To Additional Paid In Capital Other AdjustmentsToAdditionalPaidInCapitalOther	489000	USD
CY2021Q1	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	0.075
CY2021Q1	us-gaap	Dividends Common Stock DividendsCommonStock	33521000	USD
CY2021Q1	mfa	Dividends Dividend Equivalent Rights DividendsDividendEquivalentRights	120000	USD
CY2021Q1	us-gaap	Other Comprehensive Income Availableforsale Securities Adjustment Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeAvailableforsaleSecuritiesAdjustmentNetOfTaxPortionAttributableToParent	-3855000	USD
CY2021Q1	mfa	Other Comprehensive Income Loss Change In Fair Value Of Financing Agreements At Fair Value OtherComprehensiveIncomeLossChangeInFairValueOfFinancingAgreementsAtFairValue	-235000	USD
CY2021Q1	us-gaap	Stockholders Equity StockholdersEquity	2542266000	USD
CY2021Q2	us-gaap	Net Income Loss NetIncomeLoss	66714000	USD
CY2021Q2	us-gaap	Stock Issued During Period Value New Issues StockIssuedDuringPeriodValueNewIssues	398000	USD
CY2021Q2	us-gaap	Stock Repurchased And Retired During Period Value StockRepurchasedAndRetiredDuringPeriodValue	23741000	USD
CY2021Q2	us-gaap	Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue	2741000	USD
CY2021Q2	us-gaap	Adjustments To Additional Paid In Capital Other AdjustmentsToAdditionalPaidInCapitalOther	-288000	USD
CY2021Q2	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	0.10
CY2021Q2	us-gaap	Dividends Common Stock DividendsCommonStock	44081000	USD
CY2021Q2	mfa	Dividends Dividend Equivalent Rights DividendsDividendEquivalentRights	155000	USD
CY2021Q2	us-gaap	Other Comprehensive Income Availableforsale Securities Adjustment Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeAvailableforsaleSecuritiesAdjustmentNetOfTaxPortionAttributableToParent	-9589000	USD
CY2021Q2	mfa	Other Comprehensive Income Loss Change In Fair Value Of Financing Agreements At Fair Value OtherComprehensiveIncomeLossChangeInFairValueOfFinancingAgreementsAtFairValue	-491000	USD
CY2021Q2	us-gaap	Stockholders Equity StockholdersEquity	2526537000	USD
CY2019Q4	us-gaap	Stockholders Equity StockholdersEquity	3383952000	USD
CY2020Q1	us-gaap	Net Income Loss NetIncomeLoss	-908995000	USD
CY2020Q1	us-gaap	Stock Issued During Period Value New Issues StockIssuedDuringPeriodValueNewIssues	687000	USD
CY2020Q1	us-gaap	Stock Repurchased And Retired During Period Value StockRepurchasedAndRetiredDuringPeriodValue	2652000	USD
CY2020Q1	us-gaap	Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue	1266000	USD
CY2020Q1	us-gaap	Adjustments To Additional Paid In Capital Other AdjustmentsToAdditionalPaidInCapitalOther	1059000	USD
CY2020Q1	us-gaap	Other Comprehensive Income Availableforsale Securities Adjustment Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeAvailableforsaleSecuritiesAdjustmentNetOfTaxPortionAttributableToParent	-243812000	USD
CY2020Q1	us-gaap	Other Comprehensive Income Loss Cash Flow Hedge Gain Loss After Reclassification And Tax Parent OtherComprehensiveIncomeLossCashFlowHedgeGainLossAfterReclassificationAndTaxParent	-48533000	USD
CY2020Q1	us-gaap	Stockholders Equity StockholdersEquity	2440675000	USD
CY2020Q2	us-gaap	Net Income Loss NetIncomeLoss	96578000	USD
CY2020Q2	us-gaap	Stock Issued During Period Value New Issues StockIssuedDuringPeriodValueNewIssues	37000	USD
CY2020Q2	us-gaap	Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue	1709000	USD
CY2020Q2	us-gaap	Other Comprehensive Income Availableforsale Securities Adjustment Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeAvailableforsaleSecuritiesAdjustmentNetOfTaxPortionAttributableToParent	-96021000	USD
CY2020Q2	us-gaap	Other Comprehensive Income Loss Cash Flow Hedge Gain Loss After Reclassification And Tax Parent OtherComprehensiveIncomeLossCashFlowHedgeGainLossAfterReclassificationAndTaxParent	64032000	USD
CY2020Q2	us-gaap	Adjustments To Additional Paid In Capital Warrant Issued AdjustmentsToAdditionalPaidInCapitalWarrantIssued	14041000	USD
CY2020Q2	us-gaap	Stockholders Equity StockholdersEquity	2521051000	USD
	us-gaap	Net Income Loss NetIncomeLoss	152236000	USD
	us-gaap	Net Income Loss NetIncomeLoss	-812417000	USD
	mfa	Residential Whole Loans Gain Loss ResidentialWholeLoansGainLoss	41418000	USD
	mfa	Residential Whole Loans Gain Loss ResidentialWholeLoansGainLoss	-346372000	USD
	us-gaap	Debt Securities Gain Loss DebtSecuritiesGainLoss	1476000	USD
	us-gaap	Debt Securities Gain Loss DebtSecuritiesGainLoss	71430000	USD
	mfa	Impairmentand Other Losses On Securities Availablefor Sale And Other Assets ImpairmentandOtherLossesOnSecuritiesAvailableforSaleAndOtherAssets	0	USD
	mfa	Impairmentand Other Losses On Securities Availablefor Sale And Other Assets ImpairmentandOtherLossesOnSecuritiesAvailableforSaleAndOtherAssets	424745000	USD
	us-gaap	Gain Loss On Sale Of Derivatives GainLossOnSaleOfDerivatives	0	USD
	us-gaap	Gain Loss On Sale Of Derivatives GainLossOnSaleOfDerivatives	-49857000	USD
	mfa	Accretionof Purchase Discounts AccretionofPurchaseDiscounts	34322000	USD
	mfa	Accretionof Purchase Discounts AccretionofPurchaseDiscounts	20244000	USD
	mfa	Amortization Of Purchase Premiums AmortizationOfPurchasePremiums	15669000	USD
	mfa	Amortization Of Purchase Premiums AmortizationOfPurchasePremiums	35594000	USD
	mfa	Provisionfor Creditand Valuation Losseson Residential Whole Loans And Other Financial Instruments At Carrying Value ProvisionforCreditandValuationLossesonResidentialWholeLoansAndOtherFinancialInstrumentsAtCarryingValue	-33234000	USD
	mfa	Provisionfor Creditand Valuation Losseson Residential Whole Loans And Other Financial Instruments At Carrying Value ProvisionforCreditandValuationLossesonResidentialWholeLoansAndOtherFinancialInstrumentsAtCarryingValue	65334000	USD
	mfa	Other Non Cash Losses Included In Net Income OtherNonCashLossesIncludedInNetIncome	9214000	USD
	mfa	Other Non Cash Losses Included In Net Income OtherNonCashLossesIncludedInNetIncome	42540000	USD
	us-gaap	Increase Decrease In Other Operating Assets IncreaseDecreaseInOtherOperatingAssets	-18092000	USD
	us-gaap	Increase Decrease In Other Operating Assets IncreaseDecreaseInOtherOperatingAssets	-22084000	USD
	us-gaap	Increase Decrease In Other Operating Liabilities IncreaseDecreaseInOtherOperatingLiabilities	11835000	USD
	us-gaap	Increase Decrease In Other Operating Liabilities IncreaseDecreaseInOtherOperatingLiabilities	-25791000	USD
	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	96596000	USD
	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	56644000	USD
	us-gaap	Payments To Acquire Loans Held For Investment PaymentsToAcquireLoansHeldForInvestment	1032791000	USD
	us-gaap	Payments To Acquire Loans Held For Investment PaymentsToAcquireLoansHeldForInvestment	1285106000	USD
	mfa	Proceeds From Sale Of Residential Whole Loans ProceedsFromSaleOfResidentialWholeLoans	0	USD
	mfa	Proceeds From Sale Of Residential Whole Loans ProceedsFromSaleOfResidentialWholeLoans	1505458000	USD
	us-gaap	Proceeds From Principal Repayments On Loans And Leases Held For Investment ProceedsFromPrincipalRepaymentsOnLoansAndLeasesHeldForInvestment	917553000	USD
	us-gaap	Proceeds From Principal Repayments On Loans And Leases Held For Investment ProceedsFromPrincipalRepaymentsOnLoansAndLeasesHeldForInvestment	862480000	USD
	us-gaap	Payments To Acquire Investments PaymentsToAcquireInvestments	0	USD
	us-gaap	Payments To Acquire Investments PaymentsToAcquireInvestments	163748000	USD
	us-gaap	Proceeds From Sale Of Available For Sale Securities Debt ProceedsFromSaleOfAvailableForSaleSecuritiesDebt	0	USD
	us-gaap	Proceeds From Sale Of Available For Sale Securities Debt ProceedsFromSaleOfAvailableForSaleSecuritiesDebt	3790032000	USD
	us-gaap	Proceeds From Maturities Prepayments And Calls Of Other Investments ProceedsFromMaturitiesPrepaymentsAndCallsOfOtherInvestments	110320000	USD
	us-gaap	Proceeds From Maturities Prepayments And Calls Of Other Investments ProceedsFromMaturitiesPrepaymentsAndCallsOfOtherInvestments	590921000	USD
	mfa	Purchaseof Real Estate Ownedand Capital Improvements PurchaseofRealEstateOwnedandCapitalImprovements	624000	USD
	mfa	Purchaseof Real Estate Ownedand Capital Improvements PurchaseofRealEstateOwnedandCapitalImprovements	8798000	USD
	mfa	Proceeds From Real Estate Owned ProceedsFromRealEstateOwned	88625000	USD
	mfa	Proceeds From Real Estate Owned ProceedsFromRealEstateOwned	113359000	USD
	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	43589000	USD
	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	-837000	USD
	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	39494000	USD
	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	5405435000	USD
	mfa	Principal Paymentson Securities Soldunder Agreementsto Repurchaseand Other Advances PrincipalPaymentsonSecuritiesSoldunderAgreementstoRepurchaseandOtherAdvances	698220000	USD
	mfa	Principal Paymentson Securities Soldunder Agreementsto Repurchaseand Other Advances PrincipalPaymentsonSecuritiesSoldunderAgreementstoRepurchaseandOtherAdvances	21021793000	USD
	mfa	Proceedsfrom Securities Soldunder Agreementsto Repurchase With Markto Market Collateral Provisions ProceedsfromSecuritiesSoldunderAgreementstoRepurchaseWithMarktoMarketCollateralProvisions	721380000	USD
	mfa	Proceedsfrom Securities Soldunder Agreementsto Repurchase With Markto Market Collateral Provisions ProceedsfromSecuritiesSoldunderAgreementstoRepurchaseWithMarktoMarketCollateralProvisions	13537087000	USD
	mfa	Principal Payments On Financing Agreements With Non Mark To Market Collateral Provisions PrincipalPaymentsOnFinancingAgreementsWithNonMarkToMarketCollateralProvisions	1072865000	USD
	mfa	Principal Payments On Financing Agreements With Non Mark To Market Collateral Provisions PrincipalPaymentsOnFinancingAgreementsWithNonMarkToMarketCollateralProvisions	57404000	USD
	mfa	Proceeds From Borrowings On Financing Agreements With Non Mark To Market Collateral Provisions ProceedsFromBorrowingsOnFinancingAgreementsWithNonMarkToMarketCollateralProvisions	1243860000	USD
	mfa	Proceeds From Borrowings On Financing Agreements With Non Mark To Market Collateral Provisions ProceedsFromBorrowingsOnFinancingAgreementsWithNonMarkToMarketCollateralProvisions	2517556000	USD
	mfa	Payments Madefor Securitization Related Cost PaymentsMadeforSecuritizationRelatedCost	5119000	USD
	mfa	Payments Madefor Securitization Related Cost PaymentsMadeforSecuritizationRelatedCost	0	USD
	mfa	Principal Payment On Redemption Of Senior Notes PrincipalPaymentOnRedemptionOfSeniorNotes	100000000	USD
	mfa	Principal Payment On Redemption Of Senior Notes PrincipalPaymentOnRedemptionOfSeniorNotes	0	USD
	mfa	Payments Made For Margin Calls On Repurchase Agreements And Derivatives PaymentsMadeForMarginCallsOnRepurchaseAgreementsAndDerivatives	0	USD
	mfa	Payments Made For Margin Calls On Repurchase Agreements And Derivatives PaymentsMadeForMarginCallsOnRepurchaseAgreementsAndDerivatives	88405000	USD
	us-gaap	Proceeds From Issuance Of Redeemable Preferred Stock ProceedsFromIssuanceOfRedeemablePreferredStock	0	USD
	us-gaap	Proceeds From Issuance Of Redeemable Preferred Stock ProceedsFromIssuanceOfRedeemablePreferredStock	275000000	USD
	us-gaap	Payments Of Stock Issuance Costs PaymentsOfStockIssuanceCosts	0	USD
	us-gaap	Payments Of Stock Issuance Costs PaymentsOfStockIssuanceCosts	8948000	USD
	us-gaap	Proceeds From Issuance Of Common Stock ProceedsFromIssuanceOfCommonStock	772000	USD
	us-gaap	Proceeds From Issuance Of Common Stock ProceedsFromIssuanceOfCommonStock	724000	USD
	us-gaap	Proceeds From Issuance Of Warrants ProceedsFromIssuanceOfWarrants	0	USD
	us-gaap	Proceeds From Issuance Of Warrants ProceedsFromIssuanceOfWarrants	14041000	USD
	us-gaap	Payments For Repurchase Of Common Stock PaymentsForRepurchaseOfCommonStock	48075000	USD
	us-gaap	Payments For Repurchase Of Common Stock PaymentsForRepurchaseOfCommonStock	0	USD
	us-gaap	Payments Of Dividends Preferred Stock And Preference Stock PaymentsOfDividendsPreferredStockAndPreferenceStock	16438000	USD
	us-gaap	Payments Of Dividends Preferred Stock And Preference Stock PaymentsOfDividendsPreferredStockAndPreferenceStock	0	USD
	us-gaap	Payments Of Dividends Common Stock PaymentsOfDividendsCommonStock	67656000	USD
	us-gaap	Payments Of Dividends Common Stock PaymentsOfDividendsCommonStock	90749000	USD
	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	-42361000	USD
	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	-4922891000	USD
	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect	93729000	USD
	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect	539188000	USD
CY2020Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	821519000	USD
CY2019Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	134664000	USD
CY2021Q2	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	915248000	USD
CY2020Q2	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	673852000	USD
	us-gaap	Interest Paid Net InterestPaidNet	58610000	USD
	us-gaap	Interest Paid Net InterestPaidNet	165333000	USD
	us-gaap	Transfer To Other Real Estate TransferToOtherRealEstate	38370000	USD
	us-gaap	Transfer To Other Real Estate TransferToOtherRealEstate	59219000	USD
CY2021Q2	us-gaap	Dividends Payable Current And Noncurrent DividendsPayableCurrentAndNoncurrent	44236000	USD
CY2020Q2	us-gaap	Dividends Payable Current And Noncurrent DividendsPayableCurrentAndNoncurrent	0	USD
	mfa	Noncash Payablefor Unsettled Loan Purchases NoncashPayableforUnsettledLoanPurchases	131275000	USD
	mfa	Noncash Payablefor Unsettled Loan Purchases NoncashPayableforUnsettledLoanPurchases	0	USD
	mfa	Right Of Use Lease And Asset Lease Liability RightOfUseLeaseAndAssetLeaseLiability	40893000	USD
	mfa	Right Of Use Lease And Asset Lease Liability RightOfUseLeaseAndAssetLeaseLiability	0	USD
	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><div style="text-align:justify;text-indent:22.5pt"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">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 2(m)).</span></div>
	us-gaap	Number Of Reportable Segments NumberOfReportableSegments	1	segment
	us-gaap	Number Of Operating Segments NumberOfOperatingSegments	1	segment
	mfa	Number Of Days Considered To Classify Loans Delinquent NumberOfDaysConsideredToClassifyLoansDelinquent	P60D
	mfa	Ratio Loan To Value RatioLoanToValue	0.80
CY2021Q2	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	906400000	USD
CY2020Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	814400000	USD
CY2021Q2	us-gaap	Money Market Funds At Carrying Value MoneyMarketFundsAtCarryingValue	878400000	USD
CY2020Q4	us-gaap	Money Market Funds At Carrying Value MoneyMarketFundsAtCarryingValue	752400000	USD
CY2021Q2	us-gaap	Restricted Cash And Cash Equivalents RestrictedCashAndCashEquivalents	8800000	USD
CY2020Q4	us-gaap	Restricted Cash And Cash Equivalents RestrictedCashAndCashEquivalents	7200000	USD
	mfa	Repurchase Agreements Financing Period Low End Of Range RepurchaseAgreementsFinancingPeriodLowEndOfRange	P1M
	mfa	Repurchase Agreements Financing Period High End Of Range RepurchaseAgreementsFinancingPeriodHighEndOfRange	P6M
	mfa	Repurchase Agreements Financing Collateralized Period High Endof Range RepurchaseAgreementsFinancingCollateralizedPeriodHighEndofRange	P12M
	mfa	Percentage Of Annual Reit Taxable Income Distributed To Stockholders PercentageOfAnnualREITTaxableIncomeDistributedToStockholders	1
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	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	0	USD
	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	0	USD
	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	0	USD
	us-gaap	Valuation Allowance Deferred Tax Asset Change In Amount ValuationAllowanceDeferredTaxAssetChangeInAmount	-72600000	USD
CY2021Q2	mfa	Loans Including Fair Value Loans Credit Impaired Loansand Other Loansat Carrying Value LoansIncludingFairValueLoansCreditImpairedLoansandOtherLoansatCarryingValue	5600000000	USD
CY2020Q4	mfa	Loans Including Fair Value Loans Credit Impaired Loansand Other Loansat Carrying Value LoansIncludingFairValueLoansCreditImpairedLoansandOtherLoansatCarryingValue	5300000000	USD
CY2021Q2	us-gaap	Allowance For Loan And Lease Losses Real Estate AllowanceForLoanAndLeaseLossesRealEstate	54261000	USD
CY2020Q4	us-gaap	Allowance For Loan And Lease Losses Real Estate AllowanceForLoanAndLeaseLossesRealEstate	86833000	USD
CY2021Q2	us-gaap	Mortgage Loans On Real Estate Commercial And Consumer Net MortgageLoansOnRealEstateCommercialAndConsumerNet	5550979000	USD
CY2020Q4	us-gaap	Mortgage Loans On Real Estate Commercial And Consumer Net MortgageLoansOnRealEstateCommercialAndConsumerNet	5325401000	USD
CY2021Q2	mfa	Residential Whole Loans ResidentialWholeLoans	18592	loan
CY2020Q4	mfa	Residential Whole Loans ResidentialWholeLoans	18734	loan
CY2021Q2	mfa	Number Of Whole Loans Sold NumberOfWholeLoansSold	0	loan
	mfa	Number Of Whole Loans Sold NumberOfWholeLoansSold	0	loan
CY2020Q4	us-gaap	Financing Receivable Allowance For Credit Losses FinancingReceivableAllowanceForCreditLosses	86833000	USD
CY2021Q1	us-gaap	Provision For Loan Losses Expensed ProvisionForLoanLossesExpensed	-22372000	USD
CY2021Q1	us-gaap	Financing Receivable Allowance For Credit Losses Write Offs FinancingReceivableAllowanceForCreditLossesWriteOffs	1217000	USD
CY2021Q1	us-gaap	Financing Receivable Allowance For Credit Losses FinancingReceivableAllowanceForCreditLosses	63244000	USD
CY2021Q2	us-gaap	Provision For Loan Losses Expensed ProvisionForLoanLossesExpensed	-8583000	USD
CY2021Q2	us-gaap	Financing Receivable Allowance For Credit Losses Write Offs FinancingReceivableAllowanceForCreditLossesWriteOffs	400000	USD
CY2021Q2	us-gaap	Financing Receivable Allowance For Credit Losses FinancingReceivableAllowanceForCreditLosses	54261000	USD
CY2019Q4	us-gaap	Financing Receivable Allowance For Credit Losses FinancingReceivableAllowanceForCreditLosses	3025000	USD
CY2020Q1	mfa	Financing Receivable Allowancefor Credit Loss Adoptionof New Accounting Principle FinancingReceivableAllowanceforCreditLossAdoptionofNewAccountingPrinciple	70555000	USD
CY2020Q1	us-gaap	Provision For Loan Losses Expensed ProvisionForLoanLossesExpensed	74897000	USD
CY2020Q1	us-gaap	Financing Receivable Allowance For Credit Losses Write Offs FinancingReceivableAllowanceForCreditLossesWriteOffs	647000	USD
CY2020Q1	mfa	Financing Receivable Valuation Allowance Adjustment FinancingReceivableValuationAllowanceAdjustment	70181000	USD
CY2020Q1	us-gaap	Financing Receivable Allowance For Credit Losses FinancingReceivableAllowanceForCreditLosses	218011000	USD
CY2020Q2	us-gaap	Provision For Loan Losses Expensed ProvisionForLoanLossesExpensed	-10614000	USD
CY2020Q2	us-gaap	Financing Receivable Allowance For Credit Losses Write Offs FinancingReceivableAllowanceForCreditLossesWriteOffs	627000	USD
CY2020Q2	mfa	Financing Receivable Valuation Allowance Adjustment FinancingReceivableValuationAllowanceAdjustment	-70181000	USD
CY2020Q2	us-gaap	Financing Receivable Allowance For Credit Losses FinancingReceivableAllowanceForCreditLosses	136589000	USD
	mfa	Financing Receivable Allowancefor Credit Loss Adoptionof New Accounting Principle FinancingReceivableAllowanceforCreditLossAdoptionofNewAccountingPrinciple	70600000	USD
	mfa	Financing Receivable Gross Upof Amortized Costof Purchased Credit Deteriorated Loans FinancingReceivableGrossUpofAmortizedCostofPurchasedCreditDeterioratedLoans	62400000	USD
CY2021Q2	us-gaap	Financing Receivable Originated In Current Fiscal Year FinancingReceivableOriginatedInCurrentFiscalYear	112496000	USD
CY2021Q2	us-gaap	Financing Receivable Originated In Fiscal Year Before Latest Fiscal Year FinancingReceivableOriginatedInFiscalYearBeforeLatestFiscalYear	487950000	USD
CY2021Q2	us-gaap	Financing Receivable Originated Two Years Before Latest Fiscal Year FinancingReceivableOriginatedTwoYearsBeforeLatestFiscalYear	1420099000	USD
CY2021Q2	us-gaap	Financing Receivable Originated Three Years Before Latest Fiscal Year FinancingReceivableOriginatedThreeYearsBeforeLatestFiscalYear	646181000	USD
CY2021Q2	us-gaap	Financing Receivable Originated Four Years Before Latest Fiscal Year FinancingReceivableOriginatedFourYearsBeforeLatestFiscalYear	71308000	USD
CY2021Q2	us-gaap	Financing Receivable Originated Five Or More Years Before Latest Fiscal Year FinancingReceivableOriginatedFiveOrMoreYearsBeforeLatestFiscalYear	732351000	USD
CY2021Q2	us-gaap	Notes Receivable Gross NotesReceivableGross	3470385000	USD
	mfa	Financing Receivable Originated In Fiscal Year Before Fiscal Year Gross Write Offs FinancingReceivableOriginatedInFiscalYearBeforeFiscalYearGrossWriteOffs	0	USD
	mfa	Financing Receivable Originated Two Yearsbefore Latest Fiscal Year Gross Write Offs FinancingReceivableOriginatedTwoYearsbeforeLatestFiscalYearGrossWriteOffs	1052000	USD
	mfa	Financing Receivable Originated Three Years Before Latest Fiscal Year Gross Write Offs FinancingReceivableOriginatedThreeYearsBeforeLatestFiscalYearGrossWriteOffs	223000	USD
CY2020Q2	mfa	Residential Whole Loans Fair Value Net Income Loss Unrealized Gains Losses Net ResidentialWholeLoansFairValueNetIncomeLossUnrealizedGainsLossesNet	2010000	USD
	mfa	Residential Whole Loans Fair Value Net Income Loss Unrealized Gains Losses Net ResidentialWholeLoansFairValueNetIncomeLossUnrealizedGainsLossesNet	38313000	USD
	mfa	Residential Whole Loans Fair Value Net Income Loss Unrealized Gains Losses Net ResidentialWholeLoansFairValueNetIncomeLossUnrealizedGainsLossesNet	-72546000	USD
	mfa	Financing Receivable Originated Four Years Before Latest Fiscal Year Gross Write Offs FinancingReceivableOriginatedFourYearsBeforeLatestFiscalYearGrossWriteOffs	20000	USD
	mfa	Financing Receivable Originated Fiveor More Yearsbefore Latest Fiscal Year Gross Write Offs FinancingReceivableOriginatedFiveorMoreYearsbeforeLatestFiscalYearGrossWriteOffs	322000	USD
	us-gaap	Financing Receivable Allowance For Credit Losses Write Offs FinancingReceivableAllowanceForCreditLossesWriteOffs	1617000	USD
	us-gaap	Financing Receivable Allowance For Credit Losses Recovery FinancingReceivableAllowanceForCreditLossesRecovery	0	USD
	us-gaap	Financing Receivable Allowance For Credit Losses Recovery FinancingReceivableAllowanceForCreditLossesRecovery	0	USD
	mfa	Financing Receivable Originated In Fiscal Year Before Latest Fiscal Year Net Write Offs FinancingReceivableOriginatedInFiscalYearBeforeLatestFiscalYearNetWriteOffs	0	USD
	mfa	Financing Receivable Originated Two Yearsbefore Latest Fiscal Year Net Write Offs FinancingReceivableOriginatedTwoYearsbeforeLatestFiscalYearNetWriteOffs	1052000	USD
	mfa	Financing Receivable Originated Three Years Before Latest Fiscal Year Net Write Offs FinancingReceivableOriginatedThreeYearsBeforeLatestFiscalYearNetWriteOffs	223000	USD
	mfa	Financing Receivable Originated Four Years Before Latest Fiscal Year Net Write Offs FinancingReceivableOriginatedFourYearsBeforeLatestFiscalYearNetWriteOffs	20000	USD
	mfa	Financing Receivable Originated Fiveor More Yearsbefore Latest Fiscal Year Net Write Offs FinancingReceivableOriginatedFiveorMoreYearsbeforeLatestFiscalYearNetWriteOffs	322000	USD
	us-gaap	Financing Receivable Allowance For Credit Loss Writeoff After Recovery FinancingReceivableAllowanceForCreditLossWriteoffAfterRecovery	1617000	USD
CY2021Q2	mfa	Residential Whole Loans Fair Value Net Income Loss Unrealized Gains Losses Net ResidentialWholeLoansFairValueNetIncomeLossUnrealizedGainsLossesNet	6226000	USD
CY2021Q2	mfa	Residential Whole Loans Fair Value Net Income Loss Coupon Payments Realized Gains And Other Income Received ResidentialWholeLoansFairValueNetIncomeLossCouponPaymentsRealizedGainsAndOtherIncomeReceived	-205000	USD
CY2020Q2	mfa	Residential Whole Loans Fair Value Net Income Loss Coupon Payments Realized Gains And Other Income Received ResidentialWholeLoansFairValueNetIncomeLossCouponPaymentsRealizedGainsAndOtherIncomeReceived	2900000	USD
	mfa	Residential Whole Loans Fair Value Net Income Loss Coupon Payments Realized Gains And Other Income Received ResidentialWholeLoansFairValueNetIncomeLossCouponPaymentsRealizedGainsAndOtherIncomeReceived	-803000	USD
	mfa	Residential Whole Loans Fair Value Net Income Loss Coupon Payments Realized Gains And Other Income Received ResidentialWholeLoansFairValueNetIncomeLossCouponPaymentsRealizedGainsAndOtherIncomeReceived	2147000	USD
CY2021Q2	mfa	Mortgage Loanson Real Estate Gain Losson Loansat Fair Value MortgageLoansonRealEstateGainLossonLoansatFairValue	6021000	USD
CY2020Q2	mfa	Mortgage Loanson Real Estate Gain Losson Loansat Fair Value MortgageLoansonRealEstateGainLossonLoansatFairValue	4910000	USD
	mfa	Mortgage Loanson Real Estate Gain Losson Loansat Fair Value MortgageLoansonRealEstateGainLossonLoansatFairValue	37510000	USD
	mfa	Mortgage Loanson Real Estate Gain Losson Loansat Fair Value MortgageLoansonRealEstateGainLossonLoansatFairValue	-70399000	USD
	mfa	Mortgage Backed Securities Period Of Fixed Rate Mortgages Minimum MortgageBackedSecuritiesPeriodOfFixedRateMortgagesMinimum	P15Y
	mfa	Mortgage Backed Securities Periodof Fixed Rate Mortgages Maximum MortgageBackedSecuritiesPeriodofFixedRateMortgagesMaximum	P30Y
CY2021Q2	us-gaap	Proceeds From Sale Of Mortgage Backed Securities Mbs Categorized As Available For Sale ProceedsFromSaleOfMortgageBackedSecuritiesMBSCategorizedAsAvailableForSale	0	USD
CY2021Q2	us-gaap	Gain Loss On Sales Of Mortgage Backed Securities Mbs GainLossOnSalesOfMortgageBackedSecuritiesMBS	0	USD
CY2020Q2	us-gaap	Proceeds From Sale Of Mortgage Backed Securities Mbs Categorized As Available For Sale ProceedsFromSaleOfMortgageBackedSecuritiesMBSCategorizedAsAvailableForSale	1798101000	USD
CY2020Q2	us-gaap	Gain Loss On Sales Of Mortgage Backed Securities Mbs GainLossOnSalesOfMortgageBackedSecuritiesMBS	129666000	USD
	us-gaap	Proceeds From Sale Of Mortgage Backed Securities Mbs Categorized As Available For Sale ProceedsFromSaleOfMortgageBackedSecuritiesMBSCategorizedAsAvailableForSale	0	USD
	us-gaap	Gain Loss On Sales Of Mortgage Backed Securities Mbs GainLossOnSalesOfMortgageBackedSecuritiesMBS	0	USD
	us-gaap	Proceeds From Sale Of Mortgage Backed Securities Mbs Categorized As Available For Sale ProceedsFromSaleOfMortgageBackedSecuritiesMBSCategorizedAsAvailableForSale	3062742000	USD
	us-gaap	Gain Loss On Sales Of Mortgage Backed Securities Mbs GainLossOnSalesOfMortgageBackedSecuritiesMBS	61649000	USD
CY2021Q1	us-gaap	Accumulated Other Comprehensive Income Loss Available For Sale Securities Adjustment Net Of Tax AccumulatedOtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentNetOfTax	75752000	USD
CY2020Q1	us-gaap	Accumulated Other Comprehensive Income Loss Available For Sale Securities Adjustment Net Of Tax AccumulatedOtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentNetOfTax	148910000	USD
CY2020Q4	us-gaap	Accumulated Other Comprehensive Income Loss Available For Sale Securities Adjustment Net Of Tax AccumulatedOtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentNetOfTax	79607000	USD
CY2019Q4	us-gaap	Accumulated Other Comprehensive Income Loss Available For Sale Securities Adjustment Net Of Tax AccumulatedOtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentNetOfTax	392722000	USD
CY2021Q2	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Sale Of Securities Net Of Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesNetOfTax	0	USD
CY2020Q2	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Sale Of Securities Net Of Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesNetOfTax	144736000	USD
	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Sale Of Securities Net Of Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesNetOfTax	0	USD
	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Sale Of Securities Net Of Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesNetOfTax	389067000	USD
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CY2020Q2	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Writedown Of Securities Net Of Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForWritedownOfSecuritiesNetOfTax	0	USD
	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Writedown Of Securities Net Of Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForWritedownOfSecuritiesNetOfTax	0	USD
	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Writedown Of Securities Net Of Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForWritedownOfSecuritiesNetOfTax	-344269000	USD
CY2021Q2	mfa	Other Comprehensive Income Loss Availableforsale Securities Adjustment Excluding Cumulative Effect Netof Tax Portion Attributableto Parent OtherComprehensiveIncomeLossAvailableforsaleSecuritiesAdjustmentExcludingCumulativeEffectNetofTaxPortionAttributabletoParent	-9589000	USD
CY2020Q2	mfa	Other Comprehensive Income Loss Availableforsale Securities Adjustment Excluding Cumulative Effect Netof Tax Portion Attributableto Parent OtherComprehensiveIncomeLossAvailableforsaleSecuritiesAdjustmentExcludingCumulativeEffectNetofTaxPortionAttributabletoParent	-96021000	USD
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	mfa	Other Comprehensive Income Loss Availableforsale Securities Adjustment Excluding Cumulative Effect Netof Tax Portion Attributableto Parent OtherComprehensiveIncomeLossAvailableforsaleSecuritiesAdjustmentExcludingCumulativeEffectNetofTaxPortionAttributabletoParent	-339833000	USD
CY2021Q2	us-gaap	Accumulated Other Comprehensive Income Loss Available For Sale Securities Adjustment Net Of Tax AccumulatedOtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentNetOfTax	66163000	USD
CY2020Q2	us-gaap	Accumulated Other Comprehensive Income Loss Available For Sale Securities Adjustment Net Of Tax AccumulatedOtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentNetOfTax	52889000	USD
CY2021Q2	us-gaap	Accumulated Other Comprehensive Income Loss Available For Sale Securities Adjustment Net Of Tax AccumulatedOtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentNetOfTax	66163000	USD
CY2020Q2	us-gaap	Accumulated Other Comprehensive Income Loss Available For Sale Securities Adjustment Net Of Tax AccumulatedOtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentNetOfTax	52889000	USD
CY2021Q2	us-gaap	Real Estate Investments RealEstateInvestments	204762000	USD
CY2020Q4	us-gaap	Real Estate Investments RealEstateInvestments	249699000	USD
CY2021Q2	mfa	Capital Contributionsto Loan Origination Partners CapitalContributionstoLoanOriginationPartners	81512000	USD
CY2020Q4	mfa	Capital Contributionsto Loan Origination Partners CapitalContributionstoLoanOriginationPartners	47148000	USD
CY2021Q2	us-gaap	Other Interest Earning Assets OtherInterestEarningAssets	7875000	USD
CY2020Q4	us-gaap	Other Interest Earning Assets OtherInterestEarningAssets	0	USD
CY2021Q2	us-gaap	Interest Receivable InterestReceivable	36225000	USD
CY2020Q4	us-gaap	Interest Receivable InterestReceivable	38850000	USD
CY2021Q2	mfa	Principal Receivable Advances Suspense Accountsand Other PrincipalReceivableAdvancesSuspenseAccountsandOther	22198000	USD
CY2020Q4	mfa	Principal Receivable Advances Suspense Accountsand Other PrincipalReceivableAdvancesSuspenseAccountsandOther	16682000	USD
CY2021Q2	us-gaap	Operating Lease Right Of Use Asset OperatingLeaseRightOfUseAsset	38137000	USD
CY2020Q4	us-gaap	Operating Lease Right Of Use Asset OperatingLeaseRightOfUseAsset	758000	USD
CY2021Q2	us-gaap	Prepaid Expense And Other Assets PrepaidExpenseAndOtherAssets	48638000	USD
CY2020Q4	us-gaap	Prepaid Expense And Other Assets PrepaidExpenseAndOtherAssets	32244000	USD
CY2021Q2	us-gaap	Other Assets OtherAssets	439347000	USD
CY2020Q4	us-gaap	Other Assets OtherAssets	385381000	USD
CY2021Q2	mfa	Real Estate Heldfor Investment RealEstateHeldforInvestment	53300000	USD
CY2020Q4	mfa	Real Estate Heldfor Investment RealEstateHeldforInvestment	61800000	USD
CY2021Q2	us-gaap	Lessee Operating Lease Discount Rate LesseeOperatingLeaseDiscountRate	0.075
CY2021Q2	us-gaap	Number Of Real Estate Properties NumberOfRealEstateProperties	766	property
CY2021Q2	us-gaap	Real Estate Investments RealEstateInvestments	204800000	USD
CY2020Q4	us-gaap	Number Of Real Estate Properties NumberOfRealEstateProperties	946	property
CY2020Q4	us-gaap	Real Estate Investments RealEstateInvestments	249700000	USD
CY2021Q2	us-gaap	Real Estate Acquired Through Foreclosure RealEstateAcquiredThroughForeclosure	203700000	USD
CY2021Q1	us-gaap	Real Estate Investments RealEstateInvestments	220393000	USD
CY2020Q1	us-gaap	Real Estate Investments RealEstateInvestments	411473000	USD
CY2020Q4	us-gaap	Real Estate Investments RealEstateInvestments	249699000	USD
CY2019Q4	us-gaap	Real Estate Investments RealEstateInvestments	411659000	USD
CY2021Q2	us-gaap	Real Estate Owned Valuation Allowance Amounts Applied RealEstateOwnedValuationAllowanceAmountsApplied	68000	USD
CY2020Q2	us-gaap	Real Estate Owned Valuation Allowance Amounts Applied RealEstateOwnedValuationAllowanceAmountsApplied	7138000	USD
	us-gaap	Real Estate Owned Valuation Allowance Amounts Applied RealEstateOwnedValuationAllowanceAmountsApplied	943000	USD
	us-gaap	Real Estate Owned Valuation Allowance Amounts Applied RealEstateOwnedValuationAllowanceAmountsApplied	11889000	USD
CY2021Q2	us-gaap	Transfer To Other Real Estate TransferToOtherRealEstate	18302000	USD
CY2020Q2	us-gaap	Transfer To Other Real Estate TransferToOtherRealEstate	8526000	USD
	us-gaap	Transfer To Other Real Estate TransferToOtherRealEstate	38370000	USD
	us-gaap	Transfer To Other Real Estate TransferToOtherRealEstate	59219000	USD
CY2021Q2	mfa	Real Estate Investments Additions RealEstateInvestmentsAdditions	406000	USD
CY2020Q2	mfa	Real Estate Investments Additions RealEstateInvestmentsAdditions	3492000	USD
	mfa	Real Estate Investments Additions RealEstateInvestmentsAdditions	624000	USD
	mfa	Real Estate Investments Additions RealEstateInvestmentsAdditions	9301000	USD
CY2021Q2	mfa	Real Estate Investments Disposals RealEstateInvestmentsDisposals	34181000	USD
CY2020Q2	mfa	Real Estate Investments Disposals RealEstateInvestmentsDisposals	67537000	USD
	mfa	Real Estate Investments Disposals RealEstateInvestmentsDisposals	82567000	USD
	mfa	Real Estate Investments Disposals RealEstateInvestmentsDisposals	119271000	USD
CY2021Q2	us-gaap	Sec Schedule Iii Real Estate Accumulated Depreciation Depreciation Expense SECScheduleIIIRealEstateAccumulatedDepreciationDepreciationExpense	90000	USD
CY2020Q2	us-gaap	Sec Schedule Iii Real Estate Accumulated Depreciation Depreciation Expense SECScheduleIIIRealEstateAccumulatedDepreciationDepreciationExpense	300000	USD
	us-gaap	Sec Schedule Iii Real Estate Accumulated Depreciation Depreciation Expense SECScheduleIIIRealEstateAccumulatedDepreciationDepreciationExpense	421000	USD
	us-gaap	Sec Schedule Iii Real Estate Accumulated Depreciation Depreciation Expense SECScheduleIIIRealEstateAccumulatedDepreciationDepreciationExpense	503000	USD
CY2021Q2	us-gaap	Real Estate Investments RealEstateInvestments	204762000	USD
CY2020Q2	us-gaap	Real Estate Investments RealEstateInvestments	348516000	USD
CY2021Q2	us-gaap	Real Estate Investments RealEstateInvestments	204762000	USD
CY2020Q2	us-gaap	Real Estate Investments RealEstateInvestments	348516000	USD
CY2021Q2	us-gaap	Number Of Real Estate Properties NumberOfRealEstateProperties	766	property
CY2020Q2	us-gaap	Number Of Real Estate Properties NumberOfRealEstateProperties	1352	property
CY2021Q2	us-gaap	Number Of Real Estate Properties NumberOfRealEstateProperties	766	property
CY2020Q2	us-gaap	Number Of Real Estate Properties NumberOfRealEstateProperties	1352	property
CY2021Q2	mfa	Gainrecordedontransferfromresidentialwholeloanstorealestateowned Gainrecordedontransferfromresidentialwholeloanstorealestateowned	22000	USD
CY2020Q2	mfa	Gainrecordedontransferfromresidentialwholeloanstorealestateowned Gainrecordedontransferfromresidentialwholeloanstorealestateowned	-190000	USD
	mfa	Gainrecordedontransferfromresidentialwholeloanstorealestateowned Gainrecordedontransferfromresidentialwholeloanstorealestateowned	-1100000	USD
	mfa	Gainrecordedontransferfromresidentialwholeloanstorealestateowned Gainrecordedontransferfromresidentialwholeloanstorealestateowned	-4000000.0	USD
CY2021Q2	mfa	Numberof Real Estate Properties Sold During Period NumberofRealEstatePropertiesSoldDuringPeriod	139	property
	mfa	Numberof Real Estate Properties Sold During Period NumberofRealEstatePropertiesSoldDuringPeriod	319	loan
CY2021Q2	us-gaap	Proceeds From Sale Of Real Estate ProceedsFromSaleOfRealEstate	38000000.0	USD
	us-gaap	Proceeds From Sale Of Real Estate ProceedsFromSaleOfRealEstate	88600000	USD
CY2021Q2	us-gaap	Gains Losses On Sales Of Other Real Estate GainsLossesOnSalesOfOtherRealEstate	3900000	USD
	us-gaap	Gains Losses On Sales Of Other Real Estate GainsLossesOnSalesOfOtherRealEstate	6100000	USD
CY2020Q2	mfa	Numberof Real Estate Properties Sold During Period NumberofRealEstatePropertiesSoldDuringPeriod	296	property
	mfa	Numberof Real Estate Properties Sold During Period NumberofRealEstatePropertiesSoldDuringPeriod	545	property
CY2020Q2	us-gaap	Proceeds From Sale Of Real Estate ProceedsFromSaleOfRealEstate	70500000	USD
	us-gaap	Proceeds From Sale Of Real Estate ProceedsFromSaleOfRealEstate	125300000	USD
CY2020Q2	us-gaap	Gains Losses On Sales Of Other Real Estate GainsLossesOnSalesOfOtherRealEstate	3000000.0	USD
	us-gaap	Gains Losses On Sales Of Other Real Estate GainsLossesOnSalesOfOtherRealEstate	6100000	USD
CY2021Q1	us-gaap	Aoci Loss Cash Flow Hedge Cumulative Gain Loss After Tax AociLossCashFlowHedgeCumulativeGainLossAfterTax	0	USD
CY2020Q1	us-gaap	Aoci Loss Cash Flow Hedge Cumulative Gain Loss After Tax AociLossCashFlowHedgeCumulativeGainLossAfterTax	-71208000	USD
CY2020Q4	us-gaap	Aoci Loss Cash Flow Hedge Cumulative Gain Loss After Tax AociLossCashFlowHedgeCumulativeGainLossAfterTax	0	USD
CY2019Q4	us-gaap	Aoci Loss Cash Flow Hedge Cumulative Gain Loss After Tax AociLossCashFlowHedgeCumulativeGainLossAfterTax	-22675000	USD
CY2021Q2	us-gaap	Unrealized Gain Loss On Derivatives UnrealizedGainLossOnDerivatives	0	USD
CY2020Q2	us-gaap	Unrealized Gain Loss On Derivatives UnrealizedGainLossOnDerivatives	0	USD
	us-gaap	Unrealized Gain Loss On Derivatives UnrealizedGainLossOnDerivatives	0	USD
	us-gaap	Unrealized Gain Loss On Derivatives UnrealizedGainLossOnDerivatives	-50126000	USD
CY2021Q2	mfa	Other Comprehensive Income Loss Amortizationof De Designated Hedging Instrumentsafter Reclassificationand Tax OtherComprehensiveIncomeLossAmortizationofDeDesignatedHedgingInstrumentsafterReclassificationandTax	0	USD
CY2020Q2	mfa	Other Comprehensive Income Loss Amortizationof De Designated Hedging Instrumentsafter Reclassificationand Tax OtherComprehensiveIncomeLossAmortizationofDeDesignatedHedgingInstrumentsafterReclassificationandTax	64032000	USD
	mfa	Other Comprehensive Income Loss Amortizationof De Designated Hedging Instrumentsafter Reclassificationand Tax OtherComprehensiveIncomeLossAmortizationofDeDesignatedHedgingInstrumentsafterReclassificationandTax	0	USD
	mfa	Other Comprehensive Income Loss Amortizationof De Designated Hedging Instrumentsafter Reclassificationand Tax OtherComprehensiveIncomeLossAmortizationofDeDesignatedHedgingInstrumentsafterReclassificationandTax	65625000	USD
CY2021Q2	us-gaap	Aoci Loss Cash Flow Hedge Cumulative Gain Loss After Tax AociLossCashFlowHedgeCumulativeGainLossAfterTax	0	USD
CY2020Q2	us-gaap	Aoci Loss Cash Flow Hedge Cumulative Gain Loss After Tax AociLossCashFlowHedgeCumulativeGainLossAfterTax	-7176000	USD
CY2021Q2	us-gaap	Aoci Loss Cash Flow Hedge Cumulative Gain Loss After Tax AociLossCashFlowHedgeCumulativeGainLossAfterTax	0	USD
CY2020Q2	us-gaap	Aoci Loss Cash Flow Hedge Cumulative Gain Loss After Tax AociLossCashFlowHedgeCumulativeGainLossAfterTax	-7176000	USD
CY2021Q2	mfa	Financing Agreements Unpaid Principal Balance FinancingAgreementsUnpaidPrincipalBalance	4433769000	USD
CY2021Q2	us-gaap	Pledged Assets Separately Reported Securities Pledged For Repurchase Agreements At Fair Value PledgedAssetsSeparatelyReportedSecuritiesPledgedForRepurchaseAgreementsAtFairValue	5414137000	USD
CY2021Q2	mfa	Financing Agreements Fair Valueand Carrying Value FinancingAgreementsFairValueandCarryingValue	4428791000	USD
CY2020Q4	mfa	Financing Agreements Unpaid Principal Balance FinancingAgreementsUnpaidPrincipalBalance	4339479000	USD
CY2020Q4	mfa	Financing Agreements Fair Valueand Carrying Value FinancingAgreementsFairValueandCarryingValue	4336976000	USD
CY2021Q2	mfa	Repurchase Agreements Number Of Counterparties RepurchaseAgreementsNumberOfCounterparties	7	counterparty
CY2020Q4	mfa	Repurchase Agreements Number Of Counterparties RepurchaseAgreementsNumberOfCounterparties	7	counterparty
CY2021Q2	mfa	Repurchase Agreement Counterparty Risk As Percentage Of Stockholders Equity RepurchaseAgreementCounterpartyRiskAsPercentageOfStockholdersEquity	0.05
CY2020Q4	us-gaap	Pledged Assets Separately Reported Securities Pledged For Repurchase Agreements At Fair Value PledgedAssetsSeparatelyReportedSecuritiesPledgedForRepurchaseAgreementsAtFairValue	5522396000	USD
CY2021Q2	mfa	Pledged Financial Instruments Not Separately Reported Securities Pledged Aggregate Fair Value And Accrued Interest PledgedFinancialInstrumentsNotSeparatelyReportedSecuritiesPledgedAggregateFairValueAndAccruedInterest	16600000	USD
CY2020Q4	mfa	Pledged Financial Instruments Not Separately Reported Securities Pledged Aggregate Fair Value And Accrued Interest PledgedFinancialInstrumentsNotSeparatelyReportedSecuritiesPledgedAggregateFairValueAndAccruedInterest	24600000	USD
CY2021Q2	us-gaap	Securities Sold Under Agreements To Repurchase Fair Value Of Collateral SecuritiesSoldUnderAgreementsToRepurchaseFairValueOfCollateral	3400000000	USD
CY2020Q4	us-gaap	Securities Sold Under Agreements To Repurchase Fair Value Of Collateral SecuritiesSoldUnderAgreementsToRepurchaseFairValueOfCollateral	4200000000	USD
CY2021Q2	us-gaap	Derivative Liability Fair Value Of Collateral DerivativeLiabilityFairValueOfCollateral	0	USD
CY2020Q4	us-gaap	Derivative Liability Fair Value Of Collateral DerivativeLiabilityFairValueOfCollateral	0	USD
CY2021Q2	mfa	Accounts Payable Related To Unsettled Residential Whole Loan Purchases AccountsPayableRelatedToUnsettledResidentialWholeLoanPurchases	131275000	USD
CY2020Q4	mfa	Accounts Payable Related To Unsettled Residential Whole Loan Purchases AccountsPayableRelatedToUnsettledResidentialWholeLoanPurchases	0	USD
CY2021Q2	mfa	Dividendsand Dividend Equivalents Payable DividendsandDividendEquivalentsPayable	44236000	USD
CY2020Q4	mfa	Dividendsand Dividend Equivalents Payable DividendsandDividendEquivalentsPayable	34016000	USD
CY2021Q2	us-gaap	Operating Lease Liability OperatingLeaseLiability	41680000	USD
CY2020Q4	us-gaap	Operating Lease Liability OperatingLeaseLiability	636000	USD
CY2021Q2	us-gaap	Interest Payable Current And Noncurrent InterestPayableCurrentAndNoncurrent	6406000	USD
CY2020Q4	us-gaap	Interest Payable Current And Noncurrent InterestPayableCurrentAndNoncurrent	11116000	USD
CY2021Q2	us-gaap	Accrued Liabilities And Other Liabilities AccruedLiabilitiesAndOtherLiabilities	29484000	USD
CY2020Q4	us-gaap	Accrued Liabilities And Other Liabilities AccruedLiabilitiesAndOtherLiabilities	24754000	USD
CY2021Q2	us-gaap	Other Liabilities OtherLiabilities	253081000	USD
CY2020Q4	us-gaap	Other Liabilities OtherLiabilities	70522000	USD
CY2021Q2	us-gaap	Stock Repurchase Program Authorized Amount1 StockRepurchaseProgramAuthorizedAmount1	117700000	USD
CY2021Q2	us-gaap	Lessee Operating Lease Liability Payments Remainder Of Fiscal Year LesseeOperatingLeaseLiabilityPaymentsRemainderOfFiscalYear	349000	USD
CY2021Q2	us-gaap	Lessee Operating Lease Liability Payments Due Next Twelve Months LesseeOperatingLeaseLiabilityPaymentsDueNextTwelveMonths	4618000	USD
CY2021Q2	us-gaap	Lessee Operating Lease Liability Payments Due Year Two LesseeOperatingLeaseLiabilityPaymentsDueYearTwo	4619000	USD
CY2021Q2	us-gaap	Lessee Operating Lease Liability Payments Due Year Three LesseeOperatingLeaseLiabilityPaymentsDueYearThree	4599000	USD
CY2021Q2	us-gaap	Lessee Operating Lease Liability Payments Due Year Four LesseeOperatingLeaseLiabilityPaymentsDueYearFour	4534000	USD
CY2021Q2	mfa	Operating Lease Liability To Be Paid After Year Four OperatingLeaseLiabilityToBePaidAfterYearFour	54156000	USD
CY2021Q2	us-gaap	Lessee Operating Lease Liability Payments Due LesseeOperatingLeaseLiabilityPaymentsDue	72875000	USD
CY2021Q2	mfa	Repurchase Loans Allowance RepurchaseLoansAllowance	0	USD
CY2021Q2	mfa	Unfunded Commitment UnfundedCommitment	89700000	USD
CY2021Q2	mfa	Unsettled Residential Whole Loans UnsettledResidentialWholeLoans	131300000	USD
CY2021Q2	us-gaap	Other Comprehensive Income Loss Before Reclassifications Net Of Tax OtherComprehensiveIncomeLossBeforeReclassificationsNetOfTax	-9098000	USD
	us-gaap	Other Comprehensive Income Loss Before Reclassifications Net Of Tax OtherComprehensiveIncomeLossBeforeReclassificationsNetOfTax	-12718000	USD
CY2020Q4	us-gaap	Stock Repurchase Program Authorized Amount1 StockRepurchaseProgramAuthorizedAmount1	250000000	USD
CY2013Q4	us-gaap	Stock Repurchase Program Number Of Shares Authorized To Be Repurchased StockRepurchaseProgramNumberOfSharesAuthorizedToBeRepurchased	10000000.0	shares
CY2013Q4	us-gaap	Stock Repurchase Program Remaining Number Of Shares Authorized To Be Repurchased StockRepurchaseProgramRemainingNumberOfSharesAuthorizedToBeRepurchased	6600000	shares
CY2021Q2	mfa	Stock Repurchase Program Stock Repurchased And Retired During Period Shares StockRepurchaseProgramStockRepurchasedAndRetiredDuringPeriodShares	5659551	shares
	mfa	Stock Repurchase Program Stock Repurchased And Retired During Period Shares StockRepurchaseProgramStockRepurchasedAndRetiredDuringPeriodShares	11606229	shares
CY2021Q2	us-gaap	Treasury Stock Acquired Average Cost Per Share TreasuryStockAcquiredAverageCostPerShare	4.19
	us-gaap	Treasury Stock Acquired Average Cost Per Share TreasuryStockAcquiredAverageCostPerShare	4.14
CY2021Q2	us-gaap	Treasury Stock Value Acquired Cost Method TreasuryStockValueAcquiredCostMethod	23700000	USD
	us-gaap	Treasury Stock Value Acquired Cost Method TreasuryStockValueAcquiredCostMethod	48100000	USD
CY2021Q2	mfa	Payments For Fees Related To Repurchase Of Shares PaymentsForFeesRelatedToRepurchaseOfShares	57000	USD
	mfa	Payments For Fees Related To Repurchase Of Shares PaymentsForFeesRelatedToRepurchaseOfShares	116000	USD
CY2021Q2	us-gaap	Reclassification From Accumulated Other Comprehensive Income Current Period Net Of Tax ReclassificationFromAccumulatedOtherComprehensiveIncomeCurrentPeriodNetOfTax	0	USD
	us-gaap	Reclassification From Accumulated Other Comprehensive Income Current Period Net Of Tax ReclassificationFromAccumulatedOtherComprehensiveIncomeCurrentPeriodNetOfTax	0	USD
CY2021Q2	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	-9098000	USD
	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	-12718000	USD
CY2020Q2	us-gaap	Other Comprehensive Income Loss Before Reclassifications Net Of Tax OtherComprehensiveIncomeLossBeforeReclassificationsNetOfTax	48715000	USD
	us-gaap	Other Comprehensive Income Loss Before Reclassifications Net Of Tax OtherComprehensiveIncomeLossBeforeReclassificationsNetOfTax	343377000	USD
CY2020Q2	us-gaap	Reclassification From Accumulated Other Comprehensive Income Current Period Net Of Tax ReclassificationFromAccumulatedOtherComprehensiveIncomeCurrentPeriodNetOfTax	80704000	USD
	us-gaap	Reclassification From Accumulated Other Comprehensive Income Current Period Net Of Tax ReclassificationFromAccumulatedOtherComprehensiveIncomeCurrentPeriodNetOfTax	667711000	USD
CY2020Q2	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	-31989000	USD
	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	-324334000	USD
CY2021Q2	us-gaap	Reclassification From Accumulated Other Comprehensive Income Current Period Net Of Tax ReclassificationFromAccumulatedOtherComprehensiveIncomeCurrentPeriodNetOfTax	0	USD
	us-gaap	Reclassification From Accumulated Other Comprehensive Income Current Period Net Of Tax ReclassificationFromAccumulatedOtherComprehensiveIncomeCurrentPeriodNetOfTax	0	USD
CY2020Q2	us-gaap	Reclassification From Accumulated Other Comprehensive Income Current Period Net Of Tax ReclassificationFromAccumulatedOtherComprehensiveIncomeCurrentPeriodNetOfTax	80704000	USD
	us-gaap	Reclassification From Accumulated Other Comprehensive Income Current Period Net Of Tax ReclassificationFromAccumulatedOtherComprehensiveIncomeCurrentPeriodNetOfTax	667711000	USD
CY2021Q2	us-gaap	Net Income Loss NetIncomeLoss	66714000	USD
CY2020Q2	us-gaap	Net Income Loss NetIncomeLoss	96578000	USD
	us-gaap	Net Income Loss NetIncomeLoss	152236000	USD
	us-gaap	Net Income Loss NetIncomeLoss	-812417000	USD
CY2021Q2	us-gaap	Dividends Preferred Stock DividendsPreferredStock	8219000	USD
CY2020Q2	us-gaap	Dividends Preferred Stock DividendsPreferredStock	8144000	USD
	us-gaap	Dividends Preferred Stock DividendsPreferredStock	16438000	USD
	us-gaap	Dividends Preferred Stock DividendsPreferredStock	13359000	USD
CY2021Q2	us-gaap	Participating Securities Distributed And Undistributed Earnings Loss Basic ParticipatingSecuritiesDistributedAndUndistributedEarningsLossBasic	-205000	USD
CY2020Q2	us-gaap	Participating Securities Distributed And Undistributed Earnings Loss Basic ParticipatingSecuritiesDistributedAndUndistributedEarningsLossBasic	-297000	USD
	us-gaap	Participating Securities Distributed And Undistributed Earnings Loss Basic ParticipatingSecuritiesDistributedAndUndistributedEarningsLossBasic	-479000	USD
	us-gaap	Participating Securities Distributed And Undistributed Earnings Loss Basic ParticipatingSecuritiesDistributedAndUndistributedEarningsLossBasic	0	USD
CY2021Q2	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	58290000	USD
CY2020Q2	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	88137000	USD
	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	135319000	USD
	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	-825776000	USD
CY2021Q2	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	441532000	shares
CY2020Q2	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	453205000	shares
	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	446307000	shares
	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	453092000	shares
CY2021Q2	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.13
CY2020Q2	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.19
	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.30
	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	-1.82
CY2021Q2	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	58290000	USD
CY2020Q2	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	88137000	USD
	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	135319000	USD
	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	-825776000	USD
CY2021Q2	us-gaap	Interest On Convertible Debt Net Of Tax InterestOnConvertibleDebtNetOfTax	0	USD
CY2020Q2	us-gaap	Interest On Convertible Debt Net Of Tax InterestOnConvertibleDebtNetOfTax	3893000	USD
	us-gaap	Interest On Convertible Debt Net Of Tax InterestOnConvertibleDebtNetOfTax	7823000	USD
	us-gaap	Interest On Convertible Debt Net Of Tax InterestOnConvertibleDebtNetOfTax	0	USD
CY2021Q2	us-gaap	Participating Securities Distributed And Undistributed Earnings Loss Diluted ParticipatingSecuritiesDistributedAndUndistributedEarningsLossDiluted	205000	USD
CY2020Q2	us-gaap	Participating Securities Distributed And Undistributed Earnings Loss Diluted ParticipatingSecuritiesDistributedAndUndistributedEarningsLossDiluted	0	USD
	us-gaap	Participating Securities Distributed And Undistributed Earnings Loss Diluted ParticipatingSecuritiesDistributedAndUndistributedEarningsLossDiluted	0	USD
	us-gaap	Participating Securities Distributed And Undistributed Earnings Loss Diluted ParticipatingSecuritiesDistributedAndUndistributedEarningsLossDiluted	0	USD
CY2021Q2	us-gaap	Net Income Loss Available To Common Stockholders Diluted NetIncomeLossAvailableToCommonStockholdersDiluted	58495000	USD
CY2020Q2	us-gaap	Net Income Loss Available To Common Stockholders Diluted NetIncomeLossAvailableToCommonStockholdersDiluted	92030000	USD
	us-gaap	Net Income Loss Available To Common Stockholders Diluted NetIncomeLossAvailableToCommonStockholdersDiluted	143142000	USD
	us-gaap	Net Income Loss Available To Common Stockholders Diluted NetIncomeLossAvailableToCommonStockholdersDiluted	-825776000	USD
CY2021Q2	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	441532000	shares
CY2020Q2	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	453205000	shares
	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	446307000	shares
	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	453092000	shares
CY2021Q2	us-gaap	Incremental Common Shares Attributable To Conversion Of Debt Securities IncrementalCommonSharesAttributableToConversionOfDebtSecurities	0	shares
CY2020Q2	us-gaap	Incremental Common Shares Attributable To Conversion Of Debt Securities IncrementalCommonSharesAttributableToConversionOfDebtSecurities	28920000	shares
	us-gaap	Incremental Common Shares Attributable To Conversion Of Debt Securities IncrementalCommonSharesAttributableToConversionOfDebtSecurities	28920000	shares
	us-gaap	Incremental Common Shares Attributable To Conversion Of Debt Securities IncrementalCommonSharesAttributableToConversionOfDebtSecurities	0	shares
CY2021Q2	us-gaap	Incremental Common Shares Attributable To Share Based Payment Arrangements IncrementalCommonSharesAttributableToShareBasedPaymentArrangements	1730000	shares
CY2020Q2	us-gaap	Incremental Common Shares Attributable To Share Based Payment Arrangements IncrementalCommonSharesAttributableToShareBasedPaymentArrangements	0	shares
	us-gaap	Incremental Common Shares Attributable To Share Based Payment Arrangements IncrementalCommonSharesAttributableToShareBasedPaymentArrangements	0	shares
	us-gaap	Incremental Common Shares Attributable To Share Based Payment Arrangements IncrementalCommonSharesAttributableToShareBasedPaymentArrangements	0	shares
CY2021Q2	us-gaap	Incremental Common Shares Attributable To Call Options And Warrants IncrementalCommonSharesAttributableToCallOptionsAndWarrants	0	shares
CY2020Q2	us-gaap	Incremental Common Shares Attributable To Call Options And Warrants IncrementalCommonSharesAttributableToCallOptionsAndWarrants	375000	shares
	us-gaap	Incremental Common Shares Attributable To Call Options And Warrants IncrementalCommonSharesAttributableToCallOptionsAndWarrants	0	shares
	us-gaap	Incremental Common Shares Attributable To Call Options And Warrants IncrementalCommonSharesAttributableToCallOptionsAndWarrants	0	shares
CY2021Q2	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	443262000	shares
CY2020Q2	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	482500000	shares
	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	475227000	shares
	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	453092000	shares
CY2021Q2	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.13
CY2020Q2	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.19
	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.30
	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	-1.82
	us-gaap	Antidilutive Securities Excluded From Computation Of Earnings Per Share Amount AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount	4800000	shares
CY2021Q2	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Number Of Shares Authorized ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAuthorized	18000000.0	shares
CY2021Q2	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Number Of Shares Available For Grant ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAvailableForGrant	11800000	shares
CY2021Q2	us-gaap	Allocated Share Based Compensation Expense AllocatedShareBasedCompensationExpense	2744000	USD
CY2020Q2	us-gaap	Allocated Share Based Compensation Expense AllocatedShareBasedCompensationExpense	1554000	USD
	us-gaap	Allocated Share Based Compensation Expense AllocatedShareBasedCompensationExpense	4432000	USD
	us-gaap	Allocated Share Based Compensation Expense AllocatedShareBasedCompensationExpense	2827000	USD
CY2021Q2	us-gaap	Assets Fair Value Disclosure AssetsFairValueDisclosure	2437690000	USD
CY2021Q2	us-gaap	Other Liabilities Fair Value Disclosure OtherLiabilitiesFairValueDisclosure	640696000	USD
CY2020Q4	us-gaap	Assets Fair Value Disclosure AssetsFairValueDisclosure	1616901000	USD
CY2020Q4	us-gaap	Other Liabilities Fair Value Disclosure OtherLiabilitiesFairValueDisclosure	869482000	USD
CY2021Q2	mfa	Unsettled Residential Whole Loans UnsettledResidentialWholeLoans	131300000	USD
CY2021Q2	mfa	Other Real Estate Fair Value OtherRealEstateFairValue	38400000	USD
CY2020Q2	mfa	Other Real Estate Fair Value OtherRealEstateFairValue	59200000	USD
CY2021Q2	mfa	Loans Including Fair Value Loans Credit Impaired Loansand Other Loansat Carrying Value LoansIncludingFairValueLoansCreditImpairedLoansandOtherLoansatCarryingValue	5600000000	USD
CY2020Q4	mfa	Loans Including Fair Value Loans Credit Impaired Loansand Other Loansat Carrying Value LoansIncludingFairValueLoansCreditImpairedLoansandOtherLoansatCarryingValue	5300000000	USD
CY2021Q2	mfa	Unsettled Residential Whole Loans UnsettledResidentialWholeLoans	131300000	USD
CY2021Q2	mfa	Unsettled Residential Whole Loans UnsettledResidentialWholeLoans	131300000	USD

Files In Submission

Name	View Source	Status
0001055160-21-000015-index-headers.html	Edgar Link	pending
0001055160-21-000015-index.html	Edgar Link	pending
0001055160-21-000015.txt	Edgar Link	pending
0001055160-21-000015-xbrl.zip	Edgar Link	pending
exhibit311certificationofc.htm	Edgar Link	pending
exhibit312certificationofc.htm	Edgar Link	pending
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exhibit322certificationofc.htm	Edgar Link	pending
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mfa-20210630.htm	Edgar Link	pending
mfa-20210630.xsd	Edgar Link	pending
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mfa-20210630_def.xml	Edgar Link	unprocessable
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mfa-20210630_pre.xml	Edgar Link	unprocessable
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$MFA
MFA FINANCIAL, INC. Stock $mfa

2021 Q2 Form 10-Q Financial Statement

#000105516021000015 Filed on August 05, 2021

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

Files In Submission

$MFA MFA FINANCIAL, INC. Stock $mfa

2021 Q2 Form 10-Q Financial Statement

#000105516021000015 Filed on August 05, 2021

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

Files In Submission

$MFA
MFA FINANCIAL, INC. Stock $mfa