$MFA
MFA FINANCIAL, INC. Stock $mfa

$mfa Overview Financials Valuation SEC Filings Company Website

2020 Q4 Form 10-K Financial Statement

#000105516021000004 Filed on February 23, 2021

Income Statement

Concept	2020 Q4	2019 Q4	2019 Q3
Revenue	$60.48M	$153.1M	$142.7M
YoY Change	-60.5%	15.35%	21.54%
Cost Of Revenue	$41.00M	$82.50M	$85.80M
YoY Change	-50.3%	16.36%	45.67%
Gross Profit	$50.90M	$126.2M	$119.3M
YoY Change	-59.67%	50.24%	11.6%
Gross Profit Margin	84.17%	82.42%	83.59%
Selling, General & Admin	$8.900M	$12.70M	$12.90M
YoY Change	-29.92%	6.72%	17.27%
% of Gross Profit	17.49%	10.06%	10.81%
Research & Development
YoY Change
% of Gross Profit
Depreciation & Amortization		$1.300M	$900.0K
YoY Change		225.0%	50.0%
% of Gross Profit		1.03%	0.75%
Operating Expenses	$5.000M	$25.40M	$23.80M
YoY Change	-80.31%	15.98%	20.2%
Operating Profit	$45.90M	$100.8M	$95.50M
YoY Change	-54.46%	62.32%	9.64%
Interest Expense	$41.04M	$82.46M	$85.82M
YoY Change	-50.23%	16.24%	45.76%
% of Operating Profit	89.42%	81.81%	89.87%
Other Income/Expense, Net
YoY Change
Pretax Income	$45.80M	$100.6M	$95.60M
YoY Change	-54.47%	65.19%	9.76%
Income Tax
% Of Pretax Income
Net Earnings	$45.82M	$100.6M	$95.60M
YoY Change	-54.47%	65.28%	9.72%
Net Earnings / Revenue	75.76%	65.71%	66.98%
Basic Earnings Per Share	$0.08		$0.20
Diluted Earnings Per Share	$0.08	$209.1K	$0.20
COMMON SHARES
Basic Shares Outstanding	453.3M shares	451.8M shares	451.0M shares
Diluted Shares Outstanding			479.9M shares

Balance Sheet

Concept	2020 Q4	2019 Q4	2019 Q3
SHORT-TERM ASSETS
Cash & Short-Term Investments	$814.0M	$71.00M	$154.0M
YoY Change	1046.48%	36.54%	48.08%
Cash & Equivalents	$814.4M	$70.60M	$154.2M
Short-Term Investments
Other Short-Term Assets
YoY Change
Inventory
Prepaid Expenses
Receivables
Other Receivables
Total Short-Term Assets	$814.0M	$71.00M	$154.0M
YoY Change	1046.48%	36.54%	48.08%
LONG-TERM ASSETS
Property, Plant & Equipment
YoY Change
Goodwill	$0.00		$7.200M
YoY Change			0.15%
Intangibles	$0.00
YoY Change
Long-Term Investments	$5.812B	$12.65B	$12.18B
YoY Change	-54.06%	7.18%	8.09%
Other Assets	$7.000M	$64.00M	$39.00M
YoY Change	-89.06%	72.97%	550.0%
Total Long-Term Assets	$6.118B	$13.50B	$12.95B
YoY Change	-54.67%	9.13%	10.9%
TOTAL ASSETS
Total Short-Term Assets	$814.0M	$71.00M	$154.0M
Total Long-Term Assets	$6.118B	$13.50B	$12.95B
Total Assets	$6.932B	$13.57B	$13.10B
YoY Change	-48.91%	9.24%	11.23%
SHORT-TERM LIABILITIES
YoY Change
Accounts Payable
YoY Change
Accrued Expenses	$37.00M	$62.00M	$54.00M
YoY Change	-40.32%
Deferred Revenue
YoY Change
Short-Term Debt	$0.00	$0.00	$8.571B
YoY Change		-100.0%	17.77%
Long-Term Debt Due
YoY Change
Total Short-Term Liabilities	$71.00M	$153.0M	$8.716B
YoY Change	-53.59%	-98.06%	19.76%
LONG-TERM LIABILITIES
Long-Term Debt	$4.337B	$10.03B	$986.0M
YoY Change	-56.77%	4654.5%
Other Long-Term Liabilities
YoY Change
Total Long-Term Liabilities	$4.337B	$10.03B	$986.0M
YoY Change	-56.77%	791.73%	3.68%
TOTAL LIABILITIES
Total Short-Term Liabilities	$71.00M	$153.0M	$8.716B
Total Long-Term Liabilities	$4.337B	$10.03B	$986.0M
Total Liabilities	$4.407B	$10.18B	$9.701B
YoY Change	-56.72%	13.1%	17.88%
SHAREHOLDERS EQUITY
Retained Earnings	-$1.405B	-$631.0M	-$637.2M
YoY Change	122.7%	-0.16%	6.38%
Common Stock	$4.517M	$4.524M	$4.517M
YoY Change	-0.15%	0.58%	0.49%
Preferred Stock
YoY Change
Treasury Stock (at cost)
YoY Change
Treasury Stock Shares
Shareholders Equity	$2.525B	$3.384B	$3.403B
YoY Change
Total Liabilities & Shareholders Equity	$6.932B	$13.57B	$13.10B
YoY Change	-48.91%	9.24%	11.23%

Cashflow Statement

Concept	2020 Q4	2019 Q4	2019 Q3
OPERATING ACTIVITIES
Net Income	$45.82M	$100.6M	$95.60M
YoY Change	-54.47%	65.28%	9.72%
Depreciation, Depletion And Amortization		$1.300M	$900.0K
YoY Change		225.0%	50.0%
Cash From Operating Activities	$21.60M	$62.20M	$67.70M
YoY Change	-65.27%	7.99%	45.59%
INVESTING ACTIVITIES
Capital Expenditures	-$3.500M	-$500.0K	-$400.0K
YoY Change	600.0%	400.0%	0.0%
Acquisitions
YoY Change
Other Investing Activities	$521.0M	-$569.9M	$174.3M
YoY Change	-191.42%	4.63%	-109.28%
Cash From Investing Activities	$517.5M	-$570.4M	$174.1M
YoY Change	-190.73%	4.7%	-109.26%
FINANCING ACTIVITIES
Cash Dividend Paid
YoY Change
Common Stock Issuance & Retirement, Net
YoY Change
Debt Paid & Issued, Net
YoY Change
Cash From Financing Activities	-607.1M	449.7M	-168.2M
YoY Change	-235.0%	-3.21%	-108.92%
NET CHANGE
Cash From Operating Activities	21.60M	62.20M	67.70M
Cash From Investing Activities	517.5M	-570.4M	174.1M
Cash From Financing Activities	-607.1M	449.7M	-168.2M
Net Change In Cash	-68.00M	-58.50M	73.60M
YoY Change	16.24%	158.85%	40.19%
FREE CASH FLOW
Cash From Operating Activities	$21.60M	$62.20M	$67.70M
Capital Expenditures	-$3.500M	-$500.0K	-$400.0K
Free Cash Flow	$25.10M	$62.70M	$68.10M
YoY Change	-59.97%	8.67%	45.2%

Facts In Submission

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CY2018	us-gaap	Preferred Stock Dividends Income Statement Impact PreferredStockDividendsIncomeStatementImpact	15000000	USD
CY2020	mfa	Net Income Loss Availableto Common Stockholders Basicand Participating Securities NetIncomeLossAvailabletoCommonStockholdersBasicandParticipatingSecurities	-709186000	USD
CY2019	mfa	Net Income Loss Availableto Common Stockholders Basicand Participating Securities NetIncomeLossAvailabletoCommonStockholdersBasicandParticipatingSecurities	363117000	USD
CY2018	mfa	Net Income Loss Availableto Common Stockholders Basicand Participating Securities NetIncomeLossAvailabletoCommonStockholdersBasicandParticipatingSecurities	286801000	USD
CY2020	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	-1.57
CY2019	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.80
CY2018	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.68
CY2020	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	-1.57
CY2019	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.79
CY2018	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.68
CY2020	us-gaap	Net Income Loss NetIncomeLoss	-679390000	USD
CY2019	us-gaap	Net Income Loss NetIncomeLoss	378117000	USD
CY2018	us-gaap	Net Income Loss NetIncomeLoss	301801000	USD
CY2020	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Net Of Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodNetOfTax	420281000	USD
CY2019	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Net Of Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodNetOfTax	20335000	USD
CY2018	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Net Of Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodNetOfTax	-150642000	USD
CY2020	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Sale Of Securities Net Of Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesNetOfTax	389127000	USD
CY2019	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Sale Of Securities Net Of Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesNetOfTax	44600000	USD
CY2018	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Sale Of Securities Net Of Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesNetOfTax	51580000	USD
CY2020	us-gaap	Other Than Temporary Impairment Losses Investments Portion In Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent Availableforsale Securities OtherThanTemporaryImpairmentLossesInvestmentsPortionInOtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParentAvailableforsaleSecurities	344269000	USD
CY2019	us-gaap	Other Than Temporary Impairment Losses Investments Portion In Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent Availableforsale Securities OtherThanTemporaryImpairmentLossesInvestmentsPortionInOtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParentAvailableforsaleSecurities	180000	USD
CY2018	us-gaap	Other Than Temporary Impairment Losses Investments Portion In Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent Availableforsale Securities OtherThanTemporaryImpairmentLossesInvestmentsPortionInOtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParentAvailableforsaleSecurities	1259000	USD
CY2020	us-gaap	Other Comprehensive Income Loss Cash Flow Hedge Gain Loss After Reclassification And Tax OtherComprehensiveIncomeLossCashFlowHedgeGainLossAfterReclassificationAndTax	-50127000	USD
CY2019	us-gaap	Other Comprehensive Income Loss Cash Flow Hedge Gain Loss After Reclassification And Tax OtherComprehensiveIncomeLossCashFlowHedgeGainLossAfterReclassificationAndTax	-23342000	USD
CY2018	us-gaap	Other Comprehensive Income Loss Cash Flow Hedge Gain Loss After Reclassification And Tax OtherComprehensiveIncomeLossCashFlowHedgeGainLossAfterReclassificationAndTax	14545000	USD
CY2020	mfa	Other Comprehensive Income Loss Change In Fair Value Of Financing Agreements At Fair Value OtherComprehensiveIncomeLossChangeInFairValueOfFinancingAgreementsAtFairValue	2314000	USD
CY2019	mfa	Other Comprehensive Income Loss Change In Fair Value Of Financing Agreements At Fair Value OtherComprehensiveIncomeLossChangeInFairValueOfFinancingAgreementsAtFairValue	0	USD
CY2018	mfa	Other Comprehensive Income Loss Change In Fair Value Of Financing Agreements At Fair Value OtherComprehensiveIncomeLossChangeInFairValueOfFinancingAgreementsAtFairValue	0	USD
CY2020	mfa	Other Comprehensive Income Loss Amortizationof De Designated Hedging Instrumentsafter Reclassificationand Tax OtherComprehensiveIncomeLossAmortizationofDeDesignatedHedgingInstrumentsafterReclassificationandTax	72802000	USD
CY2019	mfa	Other Comprehensive Income Loss Amortizationof De Designated Hedging Instrumentsafter Reclassificationand Tax OtherComprehensiveIncomeLossAmortizationofDeDesignatedHedgingInstrumentsafterReclassificationandTax	-2454000	USD
CY2018	mfa	Other Comprehensive Income Loss Amortizationof De Designated Hedging Instrumentsafter Reclassificationand Tax OtherComprehensiveIncomeLossAmortizationofDeDesignatedHedgingInstrumentsafterReclassificationandTax	0	USD
CY2020	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	-292754000	USD
CY2019	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	-50241000	USD
CY2018	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	-188936000	USD
CY2020	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	-972144000	USD
CY2019	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	327876000	USD
CY2018	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	112865000	USD
CY2020	us-gaap	Preferred Stock Dividends Income Statement Impact PreferredStockDividendsIncomeStatementImpact	29796000	USD
CY2019	us-gaap	Preferred Stock Dividends Income Statement Impact PreferredStockDividendsIncomeStatementImpact	15000000	USD
CY2018	us-gaap	Preferred Stock Dividends Income Statement Impact PreferredStockDividendsIncomeStatementImpact	15000000	USD
CY2020	mfa	Comprehensive Income Loss To Common Stockholders And Participating Securities ComprehensiveIncomeLossToCommonStockholdersAndParticipatingSecurities	-1001940000	USD
CY2019	mfa	Comprehensive Income Loss To Common Stockholders And Participating Securities ComprehensiveIncomeLossToCommonStockholdersAndParticipatingSecurities	312876000	USD
CY2018	mfa	Comprehensive Income Loss To Common Stockholders And Participating Securities ComprehensiveIncomeLossToCommonStockholdersAndParticipatingSecurities	97865000	USD
CY2019Q4	us-gaap	Stockholders Equity StockholdersEquity	3383952000	USD
CY2020	us-gaap	Net Income Loss NetIncomeLoss	-679390000	USD
CY2020	us-gaap	Stock Issued During Period Value New Issues StockIssuedDuringPeriodValueNewIssues	7453000	USD
CY2020	us-gaap	Stock Repurchased And Retired During Period Value StockRepurchasedAndRetiredDuringPeriodValue	53577000	USD
CY2020	us-gaap	Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue	6715000	USD
CY2020	us-gaap	Adjustments To Additional Paid In Capital Other AdjustmentsToAdditionalPaidInCapitalOther	856000	USD
CY2020	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	0.125
CY2020	us-gaap	Dividends Common Stock DividendsCommonStock	56546000	USD
CY2020	mfa	Dividends Dividend Equivalent Rights DividendsDividendEquivalentRights	229000	USD
CY2020	us-gaap	Other Comprehensive Income Availableforsale Securities Adjustment Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeAvailableforsaleSecuritiesAdjustmentNetOfTaxPortionAttributableToParent	-313115000	USD
CY2020	us-gaap	Other Comprehensive Income Loss Cash Flow Hedge Gain Loss After Reclassification And Tax Parent OtherComprehensiveIncomeLossCashFlowHedgeGainLossAfterReclassificationAndTaxParent	22675000	USD
CY2020	mfa	Adjustments To Additional Paid In Capital Warrant Issued And Repurchased Net AdjustmentsToAdditionalPaidInCapitalWarrantIssuedAndRepurchasedNet	19608000	USD
CY2020	mfa	Adjustments To Additional Paid In Capital Warrant Issued And Repurchased Net AdjustmentsToAdditionalPaidInCapitalWarrantIssuedAndRepurchasedNet	19608000	USD
CY2020	mfa	Other Comprehensive Income Loss Change In Fair Value Of Financing Agreements At Fair Value OtherComprehensiveIncomeLossChangeInFairValueOfFinancingAgreementsAtFairValue	2314000	USD
CY2020Q4	us-gaap	Stockholders Equity StockholdersEquity	2524802000	USD
CY2018Q4	us-gaap	Stockholders Equity StockholdersEquity	3416101000	USD
CY2019	us-gaap	Net Income Loss NetIncomeLoss	378117000	USD
CY2019	us-gaap	Stock Issued During Period Value New Issues StockIssuedDuringPeriodValueNewIssues	12325000	USD
CY2019	us-gaap	Stock Repurchased And Retired During Period Value StockRepurchasedAndRetiredDuringPeriodValue	4118000	USD
CY2019	us-gaap	Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue	9230000	USD
CY2019	us-gaap	Adjustments To Additional Paid In Capital Other AdjustmentsToAdditionalPaidInCapitalOther	-345000	USD
CY2019	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	0.80
CY2019	us-gaap	Dividends Common Stock DividendsCommonStock	361033000	USD
CY2019	us-gaap	Dividends Preferred Stock DividendsPreferredStock	15000000	USD
CY2019	mfa	Dividends Dividend Equivalent Rights DividendsDividendEquivalentRights	1084000	USD
CY2019	us-gaap	Other Comprehensive Income Availableforsale Securities Adjustment Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeAvailableforsaleSecuritiesAdjustmentNetOfTaxPortionAttributableToParent	-24445000	USD
CY2019	us-gaap	Other Comprehensive Income Loss Cash Flow Hedge Gain Loss After Reclassification And Tax Parent OtherComprehensiveIncomeLossCashFlowHedgeGainLossAfterReclassificationAndTaxParent	-25796000	USD
CY2019Q4	us-gaap	Stockholders Equity StockholdersEquity	3383952000	USD
CY2017Q4	us-gaap	Stockholders Equity StockholdersEquity	3261636000	USD
CY2018	us-gaap	Net Income Loss NetIncomeLoss	301801000	USD
CY2018	us-gaap	Stock Issued During Period Value New Issues StockIssuedDuringPeriodValueNewIssues	392145000	USD
CY2018	us-gaap	Stock Repurchased And Retired During Period Value StockRepurchasedAndRetiredDuringPeriodValue	3392000	USD
CY2018	us-gaap	Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue	7999000	USD
CY2018	us-gaap	Adjustments To Additional Paid In Capital Other AdjustmentsToAdditionalPaidInCapitalOther	-261000	USD
CY2018	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	0.80
CY2018	us-gaap	Dividends Common Stock DividendsCommonStock	339244000	USD
CY2018	us-gaap	Dividends Preferred Stock DividendsPreferredStock	15000000	USD
CY2018	mfa	Dividends Dividend Equivalent Rights DividendsDividendEquivalentRights	942000	USD
CY2018	us-gaap	Other Comprehensive Income Availableforsale Securities Adjustment Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeAvailableforsaleSecuritiesAdjustmentNetOfTaxPortionAttributableToParent	-203481000	USD
CY2018	us-gaap	Other Comprehensive Income Loss Cash Flow Hedge Gain Loss After Reclassification And Tax Parent OtherComprehensiveIncomeLossCashFlowHedgeGainLossAfterReclassificationAndTaxParent	14545000	USD
CY2018Q4	us-gaap	Stockholders Equity StockholdersEquity	3416101000	USD
CY2020	us-gaap	Net Income Loss NetIncomeLoss	-679390000	USD
CY2019	us-gaap	Net Income Loss NetIncomeLoss	378117000	USD
CY2018	us-gaap	Net Income Loss NetIncomeLoss	301801000	USD
CY2020	mfa	Residential Whole Loans Gain Loss ResidentialWholeLoansGainLoss	-243933000	USD
CY2019	mfa	Residential Whole Loans Gain Loss ResidentialWholeLoansGainLoss	79948000	USD
CY2018	mfa	Residential Whole Loans Gain Loss ResidentialWholeLoansGainLoss	70579000	USD
CY2020	us-gaap	Debt Securities Gain Loss DebtSecuritiesGainLoss	74515000	USD
CY2019	us-gaap	Debt Securities Gain Loss DebtSecuritiesGainLoss	69082000	USD
CY2018	us-gaap	Debt Securities Gain Loss DebtSecuritiesGainLoss	24492000	USD
CY2020	mfa	Impairmentand Other Losses On Securities Availablefor Sale And Other Assets ImpairmentandOtherLossesOnSecuritiesAvailableforSaleAndOtherAssets	425082000	USD
CY2019	mfa	Impairmentand Other Losses On Securities Availablefor Sale And Other Assets ImpairmentandOtherLossesOnSecuritiesAvailableforSaleAndOtherAssets	180000	USD
CY2018	mfa	Impairmentand Other Losses On Securities Availablefor Sale And Other Assets ImpairmentandOtherLossesOnSecuritiesAvailableforSaleAndOtherAssets	1259000	USD
CY2020	us-gaap	Gain Loss On Sale Of Derivatives GainLossOnSaleOfDerivatives	-57034000	USD
CY2019	us-gaap	Gain Loss On Sale Of Derivatives GainLossOnSaleOfDerivatives	0	USD
CY2018	us-gaap	Gain Loss On Sale Of Derivatives GainLossOnSaleOfDerivatives	0	USD
CY2020	mfa	Accretionof Purchase Discounts AccretionofPurchaseDiscounts	35103000	USD
CY2019	mfa	Accretionof Purchase Discounts AccretionofPurchaseDiscounts	70383000	USD
CY2018	mfa	Accretionof Purchase Discounts AccretionofPurchaseDiscounts	82904000	USD
CY2020	mfa	Amortization Of Purchase Premiums AmortizationOfPurchasePremiums	46052000	USD
CY2019	mfa	Amortization Of Purchase Premiums AmortizationOfPurchasePremiums	45216000	USD
CY2018	mfa	Amortization Of Purchase Premiums AmortizationOfPurchasePremiums	29270000	USD
CY2020	mfa	Provisionfor Creditand Valuation Losseson Residential Whole Loans And Other Financial Instruments At Carrying Value ProvisionforCreditandValuationLossesonResidentialWholeLoansAndOtherFinancialInstrumentsAtCarryingValue	22121000	USD
CY2019	mfa	Provisionfor Creditand Valuation Losseson Residential Whole Loans And Other Financial Instruments At Carrying Value ProvisionforCreditandValuationLossesonResidentialWholeLoansAndOtherFinancialInstrumentsAtCarryingValue	2569000	USD
CY2018	mfa	Provisionfor Creditand Valuation Losseson Residential Whole Loans And Other Financial Instruments At Carrying Value ProvisionforCreditandValuationLossesonResidentialWholeLoansAndOtherFinancialInstrumentsAtCarryingValue	773000	USD
CY2020	mfa	Unrealized Losses Gainson Securities Held At Fair Valueand Swaps Not Designatedas Hedges UnrealizedLossesGainsonSecuritiesHeldAtFairValueandSwapsNotDesignatedasHedges	-44055000	USD
CY2019	mfa	Unrealized Losses Gainson Securities Held At Fair Valueand Swaps Not Designatedas Hedges UnrealizedLossesGainsonSecuritiesHeldAtFairValueandSwapsNotDesignatedasHedges	-24815000	USD
CY2018	mfa	Unrealized Losses Gainson Securities Held At Fair Valueand Swaps Not Designatedas Hedges UnrealizedLossesGainsonSecuritiesHeldAtFairValueandSwapsNotDesignatedasHedges	-19208000	USD
CY2020	us-gaap	Increase Decrease In Other Operating Assets IncreaseDecreaseInOtherOperatingAssets	-39930000	USD
CY2019	us-gaap	Increase Decrease In Other Operating Assets IncreaseDecreaseInOtherOperatingAssets	34262000	USD
CY2018	us-gaap	Increase Decrease In Other Operating Assets IncreaseDecreaseInOtherOperatingAssets	26487000	USD
CY2020	us-gaap	Increase Decrease In Other Operating Liabilities IncreaseDecreaseInOtherOperatingLiabilities	-50803000	USD
CY2019	us-gaap	Increase Decrease In Other Operating Liabilities IncreaseDecreaseInOtherOperatingLiabilities	18553000	USD
CY2018	us-gaap	Increase Decrease In Other Operating Liabilities IncreaseDecreaseInOtherOperatingLiabilities	32000	USD
CY2020	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	38396000	USD
CY2019	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	215775000	USD
CY2018	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	147881000	USD
CY2020	us-gaap	Payments To Acquire Loans Held For Investment PaymentsToAcquireLoansHeldForInvestment	1477320000	USD
CY2019	us-gaap	Payments To Acquire Loans Held For Investment PaymentsToAcquireLoansHeldForInvestment	4591422000	USD
CY2018	us-gaap	Payments To Acquire Loans Held For Investment PaymentsToAcquireLoansHeldForInvestment	3055434000	USD
CY2020	mfa	Proceeds From Saleof Residential Whole Loans ProceedsFromSaleofResidentialWholeLoans	1510902000	USD
CY2019	mfa	Proceeds From Saleof Residential Whole Loans ProceedsFromSaleofResidentialWholeLoans	-6769000	USD
CY2018	mfa	Proceeds From Saleof Residential Whole Loans ProceedsFromSaleofResidentialWholeLoans	-3405000	USD
CY2020	us-gaap	Proceeds From Principal Repayments On Loans And Leases Held For Investment ProceedsFromPrincipalRepaymentsOnLoansAndLeasesHeldForInvestment	1825606000	USD
CY2019	us-gaap	Proceeds From Principal Repayments On Loans And Leases Held For Investment ProceedsFromPrincipalRepaymentsOnLoansAndLeasesHeldForInvestment	1378529000	USD
CY2018	us-gaap	Proceeds From Principal Repayments On Loans And Leases Held For Investment ProceedsFromPrincipalRepaymentsOnLoansAndLeasesHeldForInvestment	531909000	USD
CY2020	us-gaap	Payments To Acquire Investments PaymentsToAcquireInvestments	163748000	USD
CY2019	us-gaap	Payments To Acquire Investments PaymentsToAcquireInvestments	1008215000	USD
CY2018	us-gaap	Payments To Acquire Investments PaymentsToAcquireInvestments	2604234000	USD
CY2020	us-gaap	Proceeds From Sale Of Available For Sale Securities Debt ProceedsFromSaleOfAvailableForSaleSecuritiesDebt	3790148000	USD
CY2019	us-gaap	Proceeds From Sale Of Available For Sale Securities Debt ProceedsFromSaleOfAvailableForSaleSecuritiesDebt	908697000	USD
CY2018	us-gaap	Proceeds From Sale Of Available For Sale Securities Debt ProceedsFromSaleOfAvailableForSaleSecuritiesDebt	538668000	USD
CY2020	us-gaap	Proceeds From Maturities Prepayments And Calls Of Other Investments ProceedsFromMaturitiesPrepaymentsAndCallsOfOtherInvestments	633194000	USD
CY2019	us-gaap	Proceeds From Maturities Prepayments And Calls Of Other Investments ProceedsFromMaturitiesPrepaymentsAndCallsOfOtherInvestments	2098416000	USD
CY2018	us-gaap	Proceeds From Maturities Prepayments And Calls Of Other Investments ProceedsFromMaturitiesPrepaymentsAndCallsOfOtherInvestments	2327817000	USD
CY2020	mfa	Purchaseof Real Estate Ownedand Capital Improvements PurchaseofRealEstateOwnedandCapitalImprovements	10198000	USD
CY2019	mfa	Purchaseof Real Estate Ownedand Capital Improvements PurchaseofRealEstateOwnedandCapitalImprovements	20110000	USD
CY2018	mfa	Purchaseof Real Estate Ownedand Capital Improvements PurchaseofRealEstateOwnedandCapitalImprovements	13367000	USD
CY2020	mfa	Proceeds From Real Estate Owned ProceedsFromRealEstateOwned	279786000	USD
CY2019	mfa	Proceeds From Real Estate Owned ProceedsFromRealEstateOwned	108012000	USD
CY2018	mfa	Proceeds From Real Estate Owned ProceedsFromRealEstateOwned	121304000	USD
CY2020	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	4862000	USD
CY2019	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	1879000	USD
CY2018	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	1133000	USD
CY2020	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	6383508000	USD
CY2019	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-1134741000	USD
CY2018	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-2157875000	USD
CY2020	mfa	Principal Paymentson Securities Soldunder Agreementsto Repurchaseand Other Advances PrincipalPaymentsonSecuritiesSoldunderAgreementstoRepurchaseandOtherAdvances	21810920000	USD
CY2019	mfa	Principal Paymentson Securities Soldunder Agreementsto Repurchaseand Other Advances PrincipalPaymentsonSecuritiesSoldunderAgreementstoRepurchaseandOtherAdvances	67463756000	USD
CY2020	us-gaap	Payments For Hedge Financing Activities PaymentsForHedgeFinancingActivities	60022000	USD
CY2018	mfa	Principal Paymentson Securities Soldunder Agreementsto Repurchaseand Other Advances PrincipalPaymentsonSecuritiesSoldunderAgreementstoRepurchaseandOtherAdvances	67063283000	USD
CY2020	mfa	Proceedsfrom Securities Soldunder Agreementsto Repurchase With Markto Market Collateral Provisions ProceedsfromSecuritiesSoldunderAgreementstoRepurchaseWithMarktoMarketCollateralProvisions	14008042000	USD
CY2019	mfa	Proceedsfrom Securities Soldunder Agreementsto Repurchase With Markto Market Collateral Provisions ProceedsfromSecuritiesSoldunderAgreementstoRepurchaseWithMarktoMarketCollateralProvisions	68724021000	USD
CY2018	mfa	Proceedsfrom Securities Soldunder Agreementsto Repurchase With Markto Market Collateral Provisions ProceedsfromSecuritiesSoldunderAgreementstoRepurchaseWithMarktoMarketCollateralProvisions	68327462000	USD
CY2020	mfa	Principal Payments On Financing Agreements With Non Mark To Market Collateral Provisions PrincipalPaymentsOnFinancingAgreementsWithNonMarkToMarketCollateralProvisions	1733345000	USD
CY2019	mfa	Principal Payments On Financing Agreements With Non Mark To Market Collateral Provisions PrincipalPaymentsOnFinancingAgreementsWithNonMarkToMarketCollateralProvisions	114386000	USD
CY2018	mfa	Principal Payments On Financing Agreements With Non Mark To Market Collateral Provisions PrincipalPaymentsOnFinancingAgreementsWithNonMarkToMarketCollateralProvisions	97969000	USD
CY2020	mfa	Proceedsfrom Securities Soldunder Agreementsto Repurchase With Non Markto Market Collateral Provisions ProceedsfromSecuritiesSoldunderAgreementstoRepurchaseWithNonMarktoMarketCollateralProvisions	3803150000	USD
CY2019	mfa	Proceedsfrom Securities Soldunder Agreementsto Repurchase With Non Markto Market Collateral Provisions ProceedsfromSecuritiesSoldunderAgreementstoRepurchaseWithNonMarktoMarketCollateralProvisions	0	USD
CY2018	mfa	Proceedsfrom Securities Soldunder Agreementsto Repurchase With Non Markto Market Collateral Provisions ProceedsfromSecuritiesSoldunderAgreementstoRepurchaseWithNonMarktoMarketCollateralProvisions	419970000	USD
CY2020	mfa	Payments Madefor Securitization Related Cost PaymentsMadeforSecuritizationRelatedCost	1699000	USD
CY2019	mfa	Payments Madefor Securitization Related Cost PaymentsMadeforSecuritizationRelatedCost	0	USD
CY2018	mfa	Payments Madefor Securitization Related Cost PaymentsMadeforSecuritizationRelatedCost	2497000	USD
CY2020	us-gaap	Proceeds From Convertible Debt ProceedsFromConvertibleDebt	0	USD
CY2019	us-gaap	Proceeds From Convertible Debt ProceedsFromConvertibleDebt	223311000	USD
CY2018	us-gaap	Proceeds From Convertible Debt ProceedsFromConvertibleDebt	0	USD
CY2019	us-gaap	Payments For Hedge Financing Activities PaymentsForHedgeFinancingActivities	40029000	USD
CY2018	us-gaap	Payments For Hedge Financing Activities PaymentsForHedgeFinancingActivities	61502000	USD
CY2020	us-gaap	Proceeds From Hedge Financing Activities ProceedsFromHedgeFinancingActivities	0	USD
CY2019	us-gaap	Proceeds From Hedge Financing Activities ProceedsFromHedgeFinancingActivities	0	USD
CY2018	us-gaap	Proceeds From Hedge Financing Activities ProceedsFromHedgeFinancingActivities	65393000	USD
CY2020	us-gaap	Proceeds From Issuance Of Redeemable Preferred Stock ProceedsFromIssuanceOfRedeemablePreferredStock	275000000	USD
CY2019	us-gaap	Proceeds From Issuance Of Redeemable Preferred Stock ProceedsFromIssuanceOfRedeemablePreferredStock	0	USD
CY2018	us-gaap	Proceeds From Issuance Of Redeemable Preferred Stock ProceedsFromIssuanceOfRedeemablePreferredStock	0	USD
CY2020	mfa	Payments For Issuance Of Preferred Stock PaymentsForIssuanceOfPreferredStock	8948000	USD
CY2019	mfa	Payments For Issuance Of Preferred Stock PaymentsForIssuanceOfPreferredStock	0	USD
CY2018	mfa	Payments For Issuance Of Preferred Stock PaymentsForIssuanceOfPreferredStock	0	USD
CY2020	us-gaap	Proceeds From Issuance Of Common Stock ProceedsFromIssuanceOfCommonStock	7441000	USD
CY2019	us-gaap	Proceeds From Issuance Of Common Stock ProceedsFromIssuanceOfCommonStock	12325000	USD
CY2018	us-gaap	Proceeds From Issuance Of Common Stock ProceedsFromIssuanceOfCommonStock	392474000	USD
CY2020	us-gaap	Payments Of Stock Issuance Costs PaymentsOfStockIssuanceCosts	0	USD
CY2019	us-gaap	Payments Of Stock Issuance Costs PaymentsOfStockIssuanceCosts	0	USD
CY2018	us-gaap	Payments Of Stock Issuance Costs PaymentsOfStockIssuanceCosts	329000	USD
CY2020	us-gaap	Payments For Repurchase Of Common Stock PaymentsForRepurchaseOfCommonStock	50835000	USD
CY2019	us-gaap	Payments For Repurchase Of Common Stock PaymentsForRepurchaseOfCommonStock	0	USD
CY2018	us-gaap	Payments For Repurchase Of Common Stock PaymentsForRepurchaseOfCommonStock	0	USD
CY2020	us-gaap	Proceeds From Issuance Of Warrants ProceedsFromIssuanceOfWarrants	14041000	USD
CY2019	us-gaap	Proceeds From Issuance Of Warrants ProceedsFromIssuanceOfWarrants	0	USD
CY2018	us-gaap	Proceeds From Issuance Of Warrants ProceedsFromIssuanceOfWarrants	0	USD
CY2020	us-gaap	Payments For Repurchase Of Warrants PaymentsForRepurchaseOfWarrants	33650000	USD
CY2019	us-gaap	Payments For Repurchase Of Warrants PaymentsForRepurchaseOfWarrants	0	USD
CY2018	us-gaap	Payments For Repurchase Of Warrants PaymentsForRepurchaseOfWarrants	0	USD
CY2020	us-gaap	Payments Of Dividends Preferred Stock And Preference Stock PaymentsOfDividendsPreferredStockAndPreferenceStock	29796000	USD
CY2019	us-gaap	Payments Of Dividends Preferred Stock And Preference Stock PaymentsOfDividendsPreferredStockAndPreferenceStock	15000000	USD
CY2018	us-gaap	Payments Of Dividends Preferred Stock And Preference Stock PaymentsOfDividendsPreferredStockAndPreferenceStock	15000000	USD
CY2020	us-gaap	Payments Of Dividends Common Stock PaymentsOfDividendsCommonStock	113508000	USD
CY2019	us-gaap	Payments Of Dividends Common Stock PaymentsOfDividendsCommonStock	361565000	USD
CY2018	us-gaap	Payments Of Dividends Common Stock PaymentsOfDividendsCommonStock	329759000	USD
CY2020	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	-5735049000	USD
CY2019	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	964921000	USD
CY2018	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	1634960000	USD
CY2020	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect	686855000	USD
CY2019	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect	45955000	USD
CY2018	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect	-375034000	USD
CY2019Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	134664000	USD
CY2018Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	88709000	USD
CY2017Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	463743000	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
CY2018Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	88709000	USD
CY2020	us-gaap	Interest Paid Net InterestPaidNet	254270000	USD
CY2019	us-gaap	Interest Paid Net InterestPaidNet	330398000	USD
CY2018	us-gaap	Interest Paid Net InterestPaidNet	232657000	USD
CY2020	mfa	Securities Obtained As Collateral Net Of Returns SecuritiesObtainedAsCollateralNetOfReturns	0	USD
CY2019	mfa	Securities Obtained As Collateral Net Of Returns SecuritiesObtainedAsCollateralNetOfReturns	0	USD
CY2018	mfa	Securities Obtained As Collateral Net Of Returns SecuritiesObtainedAsCollateralNetOfReturns	-505850000	USD
CY2020	us-gaap	Transfer To Other Real Estate TransferToOtherRealEstate	96766000	USD
CY2019	us-gaap	Transfer To Other Real Estate TransferToOtherRealEstate	257701000	USD
CY2018	us-gaap	Transfer To Other Real Estate TransferToOtherRealEstate	215038000	USD
CY2020Q4	us-gaap	Dividends Payable Current And Noncurrent DividendsPayableCurrentAndNoncurrent	34016000	USD
CY2019Q4	us-gaap	Dividends Payable Current And Noncurrent DividendsPayableCurrentAndNoncurrent	90749000	USD
CY2018Q4	us-gaap	Dividends Payable Current And Noncurrent DividendsPayableCurrentAndNoncurrent	90198000	USD
CY2020	mfa	Noncash Payablefor Unsettled Loan Purchases NoncashPayableforUnsettledLoanPurchases	0	USD
CY2019	mfa	Noncash Payablefor Unsettled Loan Purchases NoncashPayableforUnsettledLoanPurchases	0	USD
CY2018	mfa	Noncash Payablefor Unsettled Loan Purchases NoncashPayableforUnsettledLoanPurchases	211129000	USD
CY2020	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(n))</span></div>
CY2020	mfa	Repurchase Agreements Financing Period High End Of Range RepurchaseAgreementsFinancingPeriodHighEndOfRange	P6M
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CY2020	mfa	Number Of Days Considered To Classify Loans Delinquent NumberOfDaysConsideredToClassifyLoansDelinquent	P60D
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CY2020	mfa	Loan To Value Ratio LoanToValueRatio	0.80
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CY2019Q4	us-gaap	Money Market Funds At Carrying Value MoneyMarketFundsAtCarryingValue	39600000	USD
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CY2020Q4	mfa	Loans Including Fair Value Loans Credit Impaired Loansand Other Loansat Carrying Value LoansIncludingFairValueLoansCreditImpairedLoansandOtherLoansatCarryingValue	5300000000	USD
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CY2018	mfa	Residential Whole Loans Fair Value Net Income Loss Coupon Payments Received ResidentialWholeLoansFairValueNetIncomeLossCouponPaymentsReceived	81602000	USD
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CY2020Q4	us-gaap	Debt Securities Available For Sale Unrealized Loss Position Accumulated Loss DebtSecuritiesAvailableForSaleUnrealizedLossPositionAccumulatedLoss	1183000	USD
CY2019Q4	us-gaap	Accumulated Other Comprehensive Income Loss Available For Sale Securities Adjustment Net Of Tax AccumulatedOtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentNetOfTax	392722000	USD
CY2018Q4	us-gaap	Accumulated Other Comprehensive Income Loss Available For Sale Securities Adjustment Net Of Tax AccumulatedOtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentNetOfTax	417167000	USD
CY2017Q4	us-gaap	Accumulated Other Comprehensive Income Loss Available For Sale Securities Adjustment Net Of Tax AccumulatedOtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentNetOfTax	620648000	USD
CY2020	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Sale Of Securities Net Of Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesNetOfTax	389127000	USD
CY2019	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Sale Of Securities Net Of Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesNetOfTax	44600000	USD
CY2018	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Sale Of Securities Net Of Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesNetOfTax	51580000	USD
CY2020	us-gaap	Other Than Temporary Impairment Losses Investments Portion In Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent Availableforsale Securities OtherThanTemporaryImpairmentLossesInvestmentsPortionInOtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParentAvailableforsaleSecurities	344269000	USD
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CY2020	mfa	Other Comprehensive Income Loss Availableforsale Securities Adjustment Excluding Cumulative Effect Netof Tax Portion Attributableto Parent OtherComprehensiveIncomeLossAvailableforsaleSecuritiesAdjustmentExcludingCumulativeEffectNetofTaxPortionAttributabletoParent	-313115000	USD
CY2019	mfa	Other Comprehensive Income Loss Availableforsale Securities Adjustment Excluding Cumulative Effect Netof Tax Portion Attributableto Parent OtherComprehensiveIncomeLossAvailableforsaleSecuritiesAdjustmentExcludingCumulativeEffectNetofTaxPortionAttributabletoParent	-24445000	USD
CY2018	mfa	Other Comprehensive Income Loss Availableforsale Securities Adjustment Excluding Cumulative Effect Netof Tax Portion Attributableto Parent OtherComprehensiveIncomeLossAvailableforsaleSecuritiesAdjustmentExcludingCumulativeEffectNetofTaxPortionAttributabletoParent	-203481000	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
CY2018Q4	us-gaap	Accumulated Other Comprehensive Income Loss Available For Sale Securities Adjustment Net Of Tax AccumulatedOtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentNetOfTax	417167000	USD
CY2020Q4	us-gaap	Real Estate Investments RealEstateInvestments	249699000	USD
CY2019Q4	us-gaap	Real Estate Investments RealEstateInvestments	411659000	USD
CY2020Q4	mfa	Capital Contributionsto Loan Origination Partners CapitalContributionstoLoanOriginationPartners	47148000	USD
CY2019Q4	mfa	Capital Contributionsto Loan Origination Partners CapitalContributionstoLoanOriginationPartners	147992000	USD
CY2020Q4	us-gaap	Other Interest Earning Assets OtherInterestEarningAssets	0	USD
CY2019Q4	us-gaap	Other Interest Earning Assets OtherInterestEarningAssets	70468000	USD
CY2020Q4	us-gaap	Interest Receivable InterestReceivable	38850000	USD
CY2019Q4	us-gaap	Interest Receivable InterestReceivable	70986000	USD
CY2020Q4	mfa	Principal Receivable Advances Suspense Accountsand Other PrincipalReceivableAdvancesSuspenseAccountsandOther	16682000	USD
CY2019Q4	mfa	Principal Receivable Advances Suspense Accountsand Other PrincipalReceivableAdvancesSuspenseAccountsandOther	44648000	USD
CY2020Q4	us-gaap	Prepaid Expense And Other Assets PrepaidExpenseAndOtherAssets	33002000	USD
CY2019Q4	us-gaap	Prepaid Expense And Other Assets PrepaidExpenseAndOtherAssets	39304000	USD
CY2020Q4	us-gaap	Other Assets OtherAssets	385381000	USD
CY2019Q4	us-gaap	Other Assets OtherAssets	785057000	USD
CY2020Q4	mfa	Real Estate Heldfor Investment RealEstateHeldforInvestment	61800000	USD
CY2019Q4	mfa	Real Estate Heldfor Investment RealEstateHeldforInvestment	27300000	USD
CY2020Q4	us-gaap	Number Of Real Estate Properties NumberOfRealEstateProperties	946	property
CY2020Q4	us-gaap	Real Estate Investments RealEstateInvestments	249700000	USD
CY2019Q4	us-gaap	Number Of Real Estate Properties NumberOfRealEstateProperties	1652	property
CY2019Q4	us-gaap	Real Estate Investments RealEstateInvestments	411700000	USD
CY2020Q4	us-gaap	Real Estate Acquired Through Foreclosure RealEstateAcquiredThroughForeclosure	247200000	USD
CY2019Q4	us-gaap	Real Estate Investments RealEstateInvestments	411659000	USD
CY2018Q4	us-gaap	Real Estate Investments RealEstateInvestments	249413000	USD
CY2020	us-gaap	Real Estate Owned Valuation Allowance Amounts Applied RealEstateOwnedValuationAllowanceAmountsApplied	12570000	USD
CY2019	us-gaap	Real Estate Owned Valuation Allowance Amounts Applied RealEstateOwnedValuationAllowanceAmountsApplied	14884000	USD
CY2020	us-gaap	Transfer To Other Real Estate TransferToOtherRealEstate	96766000	USD
CY2019	us-gaap	Transfer To Other Real Estate TransferToOtherRealEstate	257701000	USD
CY2020	mfa	Real Estate Investments Additions RealEstateInvestmentsAdditions	10198000	USD
CY2019	mfa	Real Estate Investments Additions RealEstateInvestmentsAdditions	20746000	USD
CY2020	mfa	Real Estate Investments Disposals RealEstateInvestmentsDisposals	256354000	USD
CY2019	mfa	Real Estate Investments Disposals RealEstateInvestmentsDisposals	101317000	USD
CY2020Q4	us-gaap	Real Estate Investments RealEstateInvestments	249699000	USD
CY2019Q4	us-gaap	Real Estate Investments RealEstateInvestments	411659000	USD
CY2020Q4	us-gaap	Number Of Real Estate Properties NumberOfRealEstateProperties	946	property
CY2019Q4	us-gaap	Number Of Real Estate Properties NumberOfRealEstateProperties	1652	property
CY2020	mfa	Gainrecordedontransferfromresidentialwholeloanstorealestateowned Gainrecordedontransferfromresidentialwholeloanstorealestateowned	5100000	USD
CY2019	mfa	Gainrecordedontransferfromresidentialwholeloanstorealestateowned Gainrecordedontransferfromresidentialwholeloanstorealestateowned	19800000	USD
CY2020	mfa	Numberof Real Estate Properties Sold During Period NumberofRealEstatePropertiesSoldDuringPeriod	1086	property
CY2020	us-gaap	Proceeds From Sale Of Real Estate ProceedsFromSaleOfRealEstate	271400000	USD
CY2020	us-gaap	Gains Losses On Sales Of Other Real Estate GainsLossesOnSalesOfOtherRealEstate	15100000	USD
CY2019	mfa	Numberof Real Estate Properties Sold During Period NumberofRealEstatePropertiesSoldDuringPeriod	571	property
CY2019	us-gaap	Proceeds From Sale Of Real Estate ProceedsFromSaleOfRealEstate	109200000	USD
CY2019	us-gaap	Gains Losses On Sales Of Other Real Estate GainsLossesOnSalesOfOtherRealEstate	7400000	USD
CY2020Q1	mfa	Derivative Terminated Amount DerivativeTerminatedAmount	4100000000	USD
CY2019Q4	us-gaap	Aoci Loss Cash Flow Hedge Cumulative Gain Loss After Tax AociLossCashFlowHedgeCumulativeGainLossAfterTax	-22675000	USD
CY2018Q4	us-gaap	Aoci Loss Cash Flow Hedge Cumulative Gain Loss After Tax AociLossCashFlowHedgeCumulativeGainLossAfterTax	3121000	USD
CY2017Q4	us-gaap	Aoci Loss Cash Flow Hedge Cumulative Gain Loss After Tax AociLossCashFlowHedgeCumulativeGainLossAfterTax	-11424000	USD
CY2020	us-gaap	Unrealized Gain Loss On Derivatives UnrealizedGainLossOnDerivatives	-50127000	USD
CY2019	us-gaap	Unrealized Gain Loss On Derivatives UnrealizedGainLossOnDerivatives	-23342000	USD
CY2018	us-gaap	Unrealized Gain Loss On Derivatives UnrealizedGainLossOnDerivatives	14545000	USD
CY2020	mfa	Other Comprehensive Income Loss Amortizationof De Designated Hedging Instrumentsafter Reclassificationand Tax OtherComprehensiveIncomeLossAmortizationofDeDesignatedHedgingInstrumentsafterReclassificationandTax	72802000	USD
CY2019	mfa	Other Comprehensive Income Loss Amortizationof De Designated Hedging Instrumentsafter Reclassificationand Tax OtherComprehensiveIncomeLossAmortizationofDeDesignatedHedgingInstrumentsafterReclassificationandTax	-2454000	USD
CY2018	mfa	Other Comprehensive Income Loss Amortizationof De Designated Hedging Instrumentsafter Reclassificationand Tax OtherComprehensiveIncomeLossAmortizationofDeDesignatedHedgingInstrumentsafterReclassificationandTax	0	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
CY2018Q4	us-gaap	Aoci Loss Cash Flow Hedge Cumulative Gain Loss After Tax AociLossCashFlowHedgeCumulativeGainLossAfterTax	3121000	USD
CY2020Q4	mfa	Financing Agreements Unpaid Principal Balance FinancingAgreementsUnpaidPrincipalBalance	4339479000	USD
CY2020Q4	mfa	Financing Agreements Fair Valueand Carrying Value FinancingAgreementsFairValueandCarryingValue	4336976000	USD
CY2019Q4	mfa	Financing Agreements Unpaid Principal Balance FinancingAgreementsUnpaidPrincipalBalance	10044844000	USD
CY2019Q4	mfa	Financing Agreements Fair Valueand Carrying Value FinancingAgreementsFairValueandCarryingValue	10031606000	USD
CY2020Q4	mfa	Repurchase Agreements Number Of Counterparties RepurchaseAgreementsNumberOfCounterparties	7	counterparty
CY2019Q4	mfa	Repurchase Agreements Number Of Counterparties RepurchaseAgreementsNumberOfCounterparties	28	counterparty
CY2020Q4	mfa	Repurchase Agreement Counterparty Risk As Percentage Of Stockholders Equity RepurchaseAgreementCounterpartyRiskAsPercentageOfStockholdersEquity	0.05
CY2020Q4	mfa	Amounts At Risk Exceeding Equity AmountsAtRiskExceedingEquity	0.05
CY2020Q4	us-gaap	Pledged Assets Separately Reported Securities Pledged For Repurchase Agreements At Fair Value PledgedAssetsSeparatelyReportedSecuritiesPledgedForRepurchaseAgreementsAtFairValue	4100000000	USD
CY2019Q4	us-gaap	Pledged Assets Separately Reported Securities Pledged For Repurchase Agreements At Fair Value PledgedAssetsSeparatelyReportedSecuritiesPledgedForRepurchaseAgreementsAtFairValue	11300000000	USD
CY2020Q4	mfa	Pledged Financial Instruments Not Separately Reported Securities Pledged Aggregate Fair Value And Accrued Interest PledgedFinancialInstrumentsNotSeparatelyReportedSecuritiesPledgedAggregateFairValueAndAccruedInterest	24600000	USD
CY2019Q4	mfa	Pledged Financial Instruments Not Separately Reported Securities Pledged Aggregate Fair Value And Accrued Interest PledgedFinancialInstrumentsNotSeparatelyReportedSecuritiesPledgedAggregateFairValueAndAccruedInterest	57200000	USD
CY2020Q4	us-gaap	Securities Sold Under Agreements To Repurchase Fair Value Of Collateral SecuritiesSoldUnderAgreementsToRepurchaseFairValueOfCollateral	4100000000	USD
CY2019Q4	us-gaap	Securities Sold Under Agreements To Repurchase Fair Value Of Collateral SecuritiesSoldUnderAgreementsToRepurchaseFairValueOfCollateral	11200000000	USD
CY2020Q4	us-gaap	Derivative Liability Fair Value Of Collateral DerivativeLiabilityFairValueOfCollateral	0	USD
CY2019Q4	us-gaap	Derivative Liability Fair Value Of Collateral DerivativeLiabilityFairValueOfCollateral	2200000	USD
CY2020Q4	mfa	Dividendsand Dividend Equivalents Payable DividendsandDividendEquivalentsPayable	34016000	USD
CY2019Q4	mfa	Dividendsand Dividend Equivalents Payable DividendsandDividendEquivalentsPayable	90749000	USD
CY2020Q4	us-gaap	Interest Payable Current And Noncurrent InterestPayableCurrentAndNoncurrent	11116000	USD
CY2019Q4	us-gaap	Interest Payable Current And Noncurrent InterestPayableCurrentAndNoncurrent	18238000	USD
CY2020Q4	us-gaap	Accrued Liabilities And Other Liabilities AccruedLiabilitiesAndOtherLiabilities	25390000	USD
CY2019Q4	us-gaap	Accrued Liabilities And Other Liabilities AccruedLiabilitiesAndOtherLiabilities	43625000	USD
CY2020Q4	us-gaap	Other Liabilities OtherLiabilities	70522000	USD
CY2019Q4	us-gaap	Other Liabilities OtherLiabilities	152612000	USD
CY2020	mfa	Operating Leases Number Of Operating Leases OperatingLeasesNumberOfOperatingLeases	3	lease
CY2020	us-gaap	Operating Lease Expense OperatingLeaseExpense	3000000.0	USD
CY2019	us-gaap	Operating Lease Expense OperatingLeaseExpense	2700000	USD
CY2018	us-gaap	Operating Lease Expense OperatingLeaseExpense	2700000	USD
CY2020Q4	us-gaap	Lessee Operating Lease Liability Payments Due Next Twelve Months LesseeOperatingLeaseLiabilityPaymentsDueNextTwelveMonths	434000	USD
CY2020Q4	us-gaap	Lessee Operating Lease Liability Payments Due Year Two LesseeOperatingLeaseLiabilityPaymentsDueYearTwo	85000	USD
CY2020Q4	us-gaap	Lessee Operating Lease Liability Payments Due Year Three LesseeOperatingLeaseLiabilityPaymentsDueYearThree	86000	USD
CY2020Q4	us-gaap	Lessee Operating Lease Liability Payments Due Year Four LesseeOperatingLeaseLiabilityPaymentsDueYearFour	65000	USD
CY2020Q4	us-gaap	Lessee Operating Lease Liability Payments Due Year Five LesseeOperatingLeaseLiabilityPaymentsDueYearFive	0	USD
CY2020Q4	us-gaap	Lessee Operating Lease Liability Payments Due After Year Five LesseeOperatingLeaseLiabilityPaymentsDueAfterYearFive	0	USD
CY2020Q4	us-gaap	Lessee Operating Lease Liability Payments Due LesseeOperatingLeaseLiabilityPaymentsDue	670000	USD
CY2020	mfa	Grace Periodfor Paymentson New Space GracePeriodforPaymentsonNewSpace	P14M
CY2020Q4	mfa	Repurchase Loans Allowance RepurchaseLoansAllowance	0	USD
CY2020Q4	mfa	Unfunded Commitment UnfundedCommitment	60600000	USD
CY2020Q2	us-gaap	Class Of Warrant Or Right Number Of Securities Called By Warrants Or Rights ClassOfWarrantOrRightNumberOfSecuritiesCalledByWarrantsOrRights	37039106	shares
CY2020	mfa	Maximum Times Series B Receives No Dividendsin Orderfor Voting Rights MaximumTimesSeriesBReceivesNoDividendsinOrderforVotingRights	6	quarter
CY2020Q1	mfa	Common Stock Dividends Per Share Declared Never Paid CommonStockDividendsPerShareDeclaredNeverPaid	0.20
CY2020Q3	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	0.05
CY2020Q4	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	0.075
CY2020Q4	us-gaap	Dividends Payable Current And Noncurrent DividendsPayableCurrentAndNoncurrent	34000000.0	USD
CY2020Q4	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	0.075
CY2020Q3	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	0.05
CY2019Q4	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	0.20
CY2019Q3	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	0.20
CY2019Q2	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	0.20
CY2019Q1	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	0.20
CY2018Q4	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	0.20
CY2020	mfa	Stock Repurchase Program Warrants Repurchased During Period Shares StockRepurchaseProgramWarrantsRepurchasedDuringPeriodShares	17593576	shares
CY2020Q2	us-gaap	Proceeds From Issuance Of Warrants ProceedsFromIssuanceOfWarrants	495000000.0	USD
CY2020Q4	us-gaap	Payments For Repurchase Of Warrants PaymentsForRepurchaseOfWarrants	33700000	USD
CY2020Q4	us-gaap	Stock Repurchase Program Remaining Authorized Repurchase Amount1 StockRepurchaseProgramRemainingAuthorizedRepurchaseAmount1	165700000	USD
CY2019	mfa	Stock Repurchase Program Stock Repurchased And Retired During Period Shares StockRepurchaseProgramStockRepurchasedAndRetiredDuringPeriodShares	0	shares
CY2018	mfa	Stock Repurchase Program Stock Repurchased And Retired During Period Shares StockRepurchaseProgramStockRepurchasedAndRetiredDuringPeriodShares	0	shares
CY2018Q3	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	0.20
CY2018Q2	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	0.20
CY2018Q1	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	0.20
CY2020Q4	us-gaap	Dividends Payable Current And Noncurrent DividendsPayableCurrentAndNoncurrent	34000000.0	USD
CY2020	us-gaap	Investment Company Distribution To Shareholders Per Share InvestmentCompanyDistributionToShareholdersPerShare	0.05
CY2019Q4	mfa	Common Stock Dividends Capital Gains CommonStockDividendsCapitalGains	0.1672
CY2018Q4	mfa	Common Stock Dividends Capital Gains CommonStockDividendsCapitalGains	0.1290
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	shares
CY2013Q4	us-gaap	Stock Repurchase Program Remaining Number Of Shares Authorized To Be Repurchased StockRepurchaseProgramRemainingNumberOfSharesAuthorizedToBeRepurchased	6600000	shares
CY2020	mfa	Stock Repurchase Program Stock Repurchased And Retired During Period Shares StockRepurchaseProgramStockRepurchasedAndRetiredDuringPeriodShares	14085678	shares
CY2020	us-gaap	Treasury Stock Acquired Average Cost Per Share TreasuryStockAcquiredAverageCostPerShare	3.61
CY2020	us-gaap	Treasury Stock Value Acquired Cost Method TreasuryStockValueAcquiredCostMethod	50800000	USD
CY2020	mfa	Payments For Fees Related To Repurchase Of Shares PaymentsForFeesRelatedToRepurchaseOfShares	141000	USD
CY2020Q4	us-gaap	Payments For Repurchase Of Warrants PaymentsForRepurchaseOfWarrants	33700000	USD
CY2020Q4	mfa	Warrants Repurchased Rate WarrantsRepurchasedRate	0.48
CY2020Q4	us-gaap	Stock Issued During Period Shares New Issues StockIssuedDuringPeriodSharesNewIssues	12300000	shares
CY2020Q4	us-gaap	Proceeds From Warrant Exercises ProceedsFromWarrantExercises	6500000	USD
CY2020	us-gaap	Other Comprehensive Income Loss Before Reclassifications Net Of Tax OtherComprehensiveIncomeLossBeforeReclassificationsNetOfTax	367840000	USD
CY2019	us-gaap	Other Comprehensive Income Loss Before Reclassifications Net Of Tax OtherComprehensiveIncomeLossBeforeReclassificationsNetOfTax	-3007000	USD
CY2018	us-gaap	Other Comprehensive Income Loss Before Reclassifications Net Of Tax OtherComprehensiveIncomeLossBeforeReclassificationsNetOfTax	-136097000	USD
CY2020	us-gaap	Reclassification From Accumulated Other Comprehensive Income Current Period Net Of Tax ReclassificationFromAccumulatedOtherComprehensiveIncomeCurrentPeriodNetOfTax	660594000	USD
CY2019	us-gaap	Reclassification From Accumulated Other Comprehensive Income Current Period Net Of Tax ReclassificationFromAccumulatedOtherComprehensiveIncomeCurrentPeriodNetOfTax	47234000	USD
CY2018	us-gaap	Reclassification From Accumulated Other Comprehensive Income Current Period Net Of Tax ReclassificationFromAccumulatedOtherComprehensiveIncomeCurrentPeriodNetOfTax	52839000	USD
CY2020	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	-292754000	USD
CY2019	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	-50241000	USD
CY2018	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	-188936000	USD
CY2020	us-gaap	Net Income Loss NetIncomeLoss	-679390000	USD
CY2018	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.68
CY2020	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	-709415000	USD
CY2019	us-gaap	Net Income Loss NetIncomeLoss	378117000	USD
CY2018	us-gaap	Net Income Loss NetIncomeLoss	301801000	USD
CY2020	us-gaap	Dividends Preferred Stock DividendsPreferredStock	29796000	USD
CY2019	us-gaap	Dividends Preferred Stock DividendsPreferredStock	15000000	USD
CY2018	us-gaap	Dividends Preferred Stock DividendsPreferredStock	15000000	USD
CY2020	mfa	Participating Securities Distributedand Undistributed Earnings Loss Basicand Diluted ParticipatingSecuritiesDistributedandUndistributedEarningsLossBasicandDiluted	229000	USD
CY2019	mfa	Participating Securities Distributedand Undistributed Earnings Loss Basicand Diluted ParticipatingSecuritiesDistributedandUndistributedEarningsLossBasicandDiluted	1087000	USD
CY2018	mfa	Participating Securities Distributedand Undistributed Earnings Loss Basicand Diluted ParticipatingSecuritiesDistributedandUndistributedEarningsLossBasicandDiluted	943000	USD
CY2020	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	-709415000	USD
CY2019	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	362030000	USD
CY2018	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	285858000	USD
CY2020	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	452033000	shares
CY2019	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	450972000	shares
CY2018	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	418934000	shares
CY2020	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	-1.57
CY2019	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.80
CY2019	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	362030000	USD
CY2018	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	285858000	USD
CY2020	us-gaap	Interest On Convertible Debt Net Of Tax InterestOnConvertibleDebtNetOfTax	0	USD
CY2019	us-gaap	Interest On Convertible Debt Net Of Tax InterestOnConvertibleDebtNetOfTax	8965000	USD
CY2018	us-gaap	Interest On Convertible Debt Net Of Tax InterestOnConvertibleDebtNetOfTax	0	USD
CY2020	us-gaap	Net Income Loss Available To Common Stockholders Diluted NetIncomeLossAvailableToCommonStockholdersDiluted	-709415000	USD
CY2019	us-gaap	Net Income Loss Available To Common Stockholders Diluted NetIncomeLossAvailableToCommonStockholdersDiluted	370995000	USD
CY2018	us-gaap	Net Income Loss Available To Common Stockholders Diluted NetIncomeLossAvailableToCommonStockholdersDiluted	285858000	USD
CY2020	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	452033000	shares
CY2019	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	450972000	shares
CY2018	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	418934000	shares
CY2020	us-gaap	Incremental Common Shares Attributable To Conversion Of Debt Securities IncrementalCommonSharesAttributableToConversionOfDebtSecurities	0	shares
CY2019	us-gaap	Incremental Common Shares Attributable To Conversion Of Debt Securities IncrementalCommonSharesAttributableToConversionOfDebtSecurities	16797000	shares
CY2018	us-gaap	Incremental Common Shares Attributable To Conversion Of Debt Securities IncrementalCommonSharesAttributableToConversionOfDebtSecurities	0	shares
CY2020	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	452033000	shares
CY2019	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	467769000	shares
CY2018	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	418934000	shares
CY2020	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	-1.57
CY2019	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.79
CY2018	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.68
CY2020	us-gaap	Antidilutive Securities Excluded From Computation Of Earnings Per Share Amount AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount	2300000	shares
CY2020	us-gaap	Allocated Share Based Compensation Expense AllocatedShareBasedCompensationExpense	6723000	USD
CY2019	us-gaap	Allocated Share Based Compensation Expense AllocatedShareBasedCompensationExpense	9239000	USD
CY2018	us-gaap	Allocated Share Based Compensation Expense AllocatedShareBasedCompensationExpense	8007000	USD
CY2020Q4	us-gaap	Assets Fair Value Disclosure AssetsFairValueDisclosure	1616901000	USD
CY2020Q4	us-gaap	Other Liabilities Fair Value Disclosure OtherLiabilitiesFairValueDisclosure	869482000	USD
CY2019Q4	us-gaap	Assets Fair Value Disclosure AssetsFairValueDisclosure	6522565000	USD
CY2020Q4	mfa	Residential Whole Loans Heldat Fair Value Purchase Transaction Committedin Previous Period Closedin Subsequent Period ResidentialWholeLoansHeldatFairValuePurchaseTransactionCommittedinPreviousPeriodClosedinSubsequentPeriod	70600000	USD
CY2020Q4	mfa	Certain Loans Acquired In Transfer Not Accounted For As Debt Securities Acquired During Period At Acquisition At Fair Value Level3 Excluding Loan Purchase Price CertainLoansAcquiredInTransferNotAccountedForAsDebtSecuritiesAcquiredDuringPeriodAtAcquisitionAtFairValueLevel3ExcludingLoanPurchasePrice	1216637000	USD
CY2019Q4	mfa	Certain Loans Acquired In Transfer Not Accounted For As Debt Securities Acquired During Period At Acquisition At Fair Value Level3 Excluding Loan Purchase Price CertainLoansAcquiredInTransferNotAccountedForAsDebtSecuritiesAcquiredDuringPeriodAtAcquisitionAtFairValueLevel3ExcludingLoanPurchasePrice	1381113000	USD
CY2020Q4	mfa	Certain Loans Acquired In Transfer Not Accounted For As Debt Securities Acquired During Period At Acquisition At Fair Value Purchases Excludedfrom Level3 Fair Value Methodology Disclosures CertainLoansAcquiredInTransferNotAccountedForAsDebtSecuritiesAcquiredDuringPeriodAtAcquisitionAtFairValuePurchasesExcludedfromLevel3FairValueMethodologyDisclosures	265000	USD
CY2019Q4	mfa	Certain Loans Acquired In Transfer Not Accounted For As Debt Securities Acquired During Period At Acquisition At Fair Value Purchases Excludedfrom Level3 Fair Value Methodology Disclosures CertainLoansAcquiredInTransferNotAccountedForAsDebtSecuritiesAcquiredDuringPeriodAtAcquisitionAtFairValuePurchasesExcludedfromLevel3FairValueMethodologyDisclosures	470000	USD
CY2020Q4	mfa	Other Real Estate Fair Value OtherRealEstateFairValue	96800000	USD
CY2019Q4	mfa	Other Real Estate Fair Value OtherRealEstateFairValue	257700000	USD
CY2020Q2	us-gaap	Debt Securities Available For Sale Realized Gain Loss DebtSecuritiesAvailableForSaleRealizedGainLoss	49485000	USD
CY2020Q3	us-gaap	Debt Securities Available For Sale Realized Gain Loss DebtSecuritiesAvailableForSaleRealizedGainLoss	48000	USD
CY2020Q1	mfa	Noninterest Income Excluding Amounts Related To Mortgagebacked Securities And Linked Transactions NoninterestIncomeExcludingAmountsRelatedToMortgagebackedSecuritiesAndLinkedTransactions	-499623000	USD
CY2020Q4	mfa	Loans Including Fair Value Loans Credit Impaired Loansand Other Loansat Carrying Value LoansIncludingFairValueLoansCreditImpairedLoansandOtherLoansatCarryingValue	5300000000	USD
CY2019Q4	mfa	Loans Including Fair Value Loans Credit Impaired Loansand Other Loansat Carrying Value LoansIncludingFairValueLoansCreditImpairedLoansandOtherLoansatCarryingValue	7400000000	USD
CY2020Q4	mfa	Residential Whole Loans Net ResidentialWholeLoansNet	4100000000	USD
CY2019Q4	mfa	Residential Whole Loans Net ResidentialWholeLoansNet	6100000000	USD
CY2020Q4	us-gaap	Certain Loans Acquired In Transfer Not Accounted For As Debt Securities Acquired During Period At Acquisition At Fair Value CertainLoansAcquiredInTransferNotAccountedForAsDebtSecuritiesAcquiredDuringPeriodAtAcquisitionAtFairValue	1200000000	USD
CY2019Q4	us-gaap	Certain Loans Acquired In Transfer Not Accounted For As Debt Securities Acquired During Period At Acquisition At Fair Value CertainLoansAcquiredInTransferNotAccountedForAsDebtSecuritiesAcquiredDuringPeriodAtAcquisitionAtFairValue	1400000000	USD
CY2020Q1	us-gaap	Interest And Dividend Income Operating InterestAndDividendIncomeOperating	145460000	USD
CY2020Q2	us-gaap	Interest And Dividend Income Operating InterestAndDividendIncomeOperating	87368000	USD
CY2020Q3	us-gaap	Interest And Dividend Income Operating InterestAndDividendIncomeOperating	66080000	USD
CY2020Q4	us-gaap	Interest And Dividend Income Operating InterestAndDividendIncomeOperating	60476000	USD
CY2020Q1	us-gaap	Interest Expense InterestExpense	83759000	USD
CY2020Q2	us-gaap	Interest Expense InterestExpense	87991000	USD
CY2020Q3	us-gaap	Interest Expense InterestExpense	55964000	USD
CY2020Q4	us-gaap	Interest Expense InterestExpense	41044000	USD
CY2020Q1	us-gaap	Interest Income Expense Net InterestIncomeExpenseNet	61701000	USD
CY2020Q4	us-gaap	Debt Securities Available For Sale Realized Gain Loss DebtSecuritiesAvailableForSaleRealizedGainLoss	0	USD
CY2020Q2	us-gaap	Interest Income Expense Net InterestIncomeExpenseNet	-623000	USD
CY2020Q3	us-gaap	Interest Income Expense Net InterestIncomeExpenseNet	10116000	USD
CY2020Q4	us-gaap	Interest Income Expense Net InterestIncomeExpenseNet	19432000	USD
CY2020Q1	mfa	Reversal Provision For Credit And Valuation Losses On Residential Whole Loans And Other Financial Instruments ReversalProvisionForCreditAndValuationLossesOnResidentialWholeLoansAndOtherFinancialInstruments	150711000	USD
CY2020Q2	mfa	Reversal Provision For Credit And Valuation Losses On Residential Whole Loans And Other Financial Instruments ReversalProvisionForCreditAndValuationLossesOnResidentialWholeLoansAndOtherFinancialInstruments	-85377000	USD
CY2020Q3	mfa	Reversal Provision For Credit And Valuation Losses On Residential Whole Loans And Other Financial Instruments ReversalProvisionForCreditAndValuationLossesOnResidentialWholeLoansAndOtherFinancialInstruments	-27244000	USD
CY2020Q4	mfa	Reversal Provision For Credit And Valuation Losses On Residential Whole Loans And Other Financial Instruments ReversalProvisionForCreditAndValuationLossesOnResidentialWholeLoansAndOtherFinancialInstruments	-15709000	USD
CY2020Q1	us-gaap	Interest Income Expense After Provision For Loan Loss InterestIncomeExpenseAfterProvisionForLoanLoss	-89010000	USD
CY2020Q2	us-gaap	Interest Income Expense After Provision For Loan Loss InterestIncomeExpenseAfterProvisionForLoanLoss	84754000	USD
CY2020Q3	us-gaap	Interest Income Expense After Provision For Loan Loss InterestIncomeExpenseAfterProvisionForLoanLoss	37360000	USD
CY2020Q4	us-gaap	Interest Income Expense After Provision For Loan Loss InterestIncomeExpenseAfterProvisionForLoanLoss	35141000	USD
CY2020Q1	mfa	Mortgage Loanson Real Estate Gain Losson Loansat Fair Value MortgageLoansonRealEstateGainLossonLoansatFairValue	-52760000	USD
CY2020Q2	mfa	Mortgage Loanson Real Estate Gain Losson Loansat Fair Value MortgageLoansonRealEstateGainLossonLoansatFairValue	20320000	USD
CY2020Q3	mfa	Mortgage Loanson Real Estate Gain Losson Loansat Fair Value MortgageLoansonRealEstateGainLossonLoansatFairValue	76871000	USD
CY2020Q4	mfa	Mortgage Loanson Real Estate Gain Losson Loansat Fair Value MortgageLoansonRealEstateGainLossonLoansatFairValue	49782000	USD
CY2020Q1	us-gaap	Debt Securities Available For Sale Realized Gain Loss DebtSecuritiesAvailableForSaleRealizedGainLoss	-238380000	USD
CY2020Q2	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	88434000	USD
CY2020Q2	mfa	Noninterest Income Excluding Amounts Related To Mortgagebacked Securities And Linked Transactions NoninterestIncomeExcludingAmountsRelatedToMortgagebackedSecuritiesAndLinkedTransactions	6552000	USD
CY2020Q3	mfa	Noninterest Income Excluding Amounts Related To Mortgagebacked Securities And Linked Transactions NoninterestIncomeExcludingAmountsRelatedToMortgagebackedSecuritiesAndLinkedTransactions	292000	USD
CY2020Q4	mfa	Noninterest Income Excluding Amounts Related To Mortgagebacked Securities And Linked Transactions NoninterestIncomeExcludingAmountsRelatedToMortgagebackedSecuritiesAndLinkedTransactions	-18708000	USD
CY2020Q1	us-gaap	Costs And Expenses CostsAndExpenses	29222000	USD
CY2020Q2	us-gaap	Costs And Expenses CostsAndExpenses	64533000	USD
CY2020Q3	us-gaap	Costs And Expenses CostsAndExpenses	27361000	USD
CY2020Q4	us-gaap	Costs And Expenses CostsAndExpenses	20398000	USD
CY2020Q1	us-gaap	Net Income Loss NetIncomeLoss	-908995000	USD
CY2020Q2	us-gaap	Net Income Loss NetIncomeLoss	96578000	USD
CY2020Q3	us-gaap	Net Income Loss NetIncomeLoss	87210000	USD
CY2020Q4	us-gaap	Net Income Loss NetIncomeLoss	45817000	USD
CY2020Q1	us-gaap	Preferred Stock Dividends Income Statement Impact PreferredStockDividendsIncomeStatementImpact	5215000	USD
CY2020Q2	us-gaap	Preferred Stock Dividends Income Statement Impact PreferredStockDividendsIncomeStatementImpact	8144000	USD
CY2020Q3	us-gaap	Preferred Stock Dividends Income Statement Impact PreferredStockDividendsIncomeStatementImpact	8219000	USD
CY2020Q4	us-gaap	Preferred Stock Dividends Income Statement Impact PreferredStockDividendsIncomeStatementImpact	8218000	USD
CY2020Q1	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	-914210000	USD
CY2020Q3	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	78991000	USD
CY2020Q4	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	37599000	USD
CY2020Q1	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	-2.02
CY2020Q2	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.19
CY2020Q3	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.17
CY2020Q4	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.08
CY2020Q1	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	-2.02
CY2020Q2	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.19
CY2020Q3	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.17
CY2020Q4	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.08
CY2019Q1	us-gaap	Interest And Dividend Income Operating InterestAndDividendIncomeOperating	140952000	USD
CY2019Q2	us-gaap	Interest And Dividend Income Operating InterestAndDividendIncomeOperating	144935000	USD
CY2019Q3	us-gaap	Interest And Dividend Income Operating InterestAndDividendIncomeOperating	142721000	USD
CY2019Q4	us-gaap	Interest And Dividend Income Operating InterestAndDividendIncomeOperating	153118000	USD
CY2019Q1	us-gaap	Interest Expense InterestExpense	79026000	USD
CY2019Q2	us-gaap	Interest Expense InterestExpense	85044000	USD
CY2019Q3	us-gaap	Interest Expense InterestExpense	85823000	USD
CY2019Q4	us-gaap	Interest Expense InterestExpense	82463000	USD
CY2019Q1	us-gaap	Interest Income Expense Net InterestIncomeExpenseNet	61926000	USD
CY2019Q2	us-gaap	Interest Income Expense Net InterestIncomeExpenseNet	59891000	USD
CY2019Q3	us-gaap	Interest Income Expense Net InterestIncomeExpenseNet	56898000	USD
CY2019Q4	us-gaap	Interest Income Expense Net InterestIncomeExpenseNet	70655000	USD
CY2019Q1	mfa	Reversal Provision For Credit And Valuation Losses On Residential Whole Loans And Other Financial Instruments ReversalProvisionForCreditAndValuationLossesOnResidentialWholeLoansAndOtherFinancialInstruments	805000	USD
CY2019Q2	mfa	Reversal Provision For Credit And Valuation Losses On Residential Whole Loans And Other Financial Instruments ReversalProvisionForCreditAndValuationLossesOnResidentialWholeLoansAndOtherFinancialInstruments	385000	USD
CY2019Q3	mfa	Reversal Provision For Credit And Valuation Losses On Residential Whole Loans And Other Financial Instruments ReversalProvisionForCreditAndValuationLossesOnResidentialWholeLoansAndOtherFinancialInstruments	347000	USD
CY2019Q4	mfa	Reversal Provision For Credit And Valuation Losses On Residential Whole Loans And Other Financial Instruments ReversalProvisionForCreditAndValuationLossesOnResidentialWholeLoansAndOtherFinancialInstruments	1032000	USD
CY2019Q1	us-gaap	Interest Income Expense After Provision For Loan Loss InterestIncomeExpenseAfterProvisionForLoanLoss	61121000	USD
CY2019Q2	us-gaap	Interest Income Expense After Provision For Loan Loss InterestIncomeExpenseAfterProvisionForLoanLoss	59506000	USD
CY2019Q3	us-gaap	Interest Income Expense After Provision For Loan Loss InterestIncomeExpenseAfterProvisionForLoanLoss	56551000	USD
CY2019Q4	us-gaap	Interest Income Expense After Provision For Loan Loss InterestIncomeExpenseAfterProvisionForLoanLoss	69623000	USD
CY2019Q1	mfa	Mortgage Loanson Real Estate Gain Losson Loansat Fair Value MortgageLoansonRealEstateGainLossonLoansatFairValue	25267000	USD
CY2019Q2	mfa	Mortgage Loanson Real Estate Gain Losson Loansat Fair Value MortgageLoansonRealEstateGainLossonLoansatFairValue	51473000	USD
CY2019Q3	mfa	Mortgage Loanson Real Estate Gain Losson Loansat Fair Value MortgageLoansonRealEstateGainLossonLoansatFairValue	40175000	USD
CY2019Q4	mfa	Mortgage Loanson Real Estate Gain Losson Loansat Fair Value MortgageLoansonRealEstateGainLossonLoansatFairValue	41415000	USD
CY2019Q1	us-gaap	Debt Securities Available For Sale Realized Gain Loss DebtSecuritiesAvailableForSaleRealizedGainLoss	24609000	USD
CY2019Q2	us-gaap	Debt Securities Available For Sale Realized Gain Loss DebtSecuritiesAvailableForSaleRealizedGainLoss	7710000	USD
CY2019Q3	us-gaap	Debt Securities Available For Sale Realized Gain Loss DebtSecuritiesAvailableForSaleRealizedGainLoss	17708000	USD
CY2019Q4	us-gaap	Debt Securities Available For Sale Realized Gain Loss DebtSecuritiesAvailableForSaleRealizedGainLoss	11975000	USD
CY2019Q1	mfa	Noninterest Income Excluding Amounts Related To Mortgagebacked Securities And Linked Transactions NoninterestIncomeExcludingAmountsRelatedToMortgagebackedSecuritiesAndLinkedTransactions	1293000	USD
CY2019Q2	mfa	Noninterest Income Excluding Amounts Related To Mortgagebacked Securities And Linked Transactions NoninterestIncomeExcludingAmountsRelatedToMortgagebackedSecuritiesAndLinkedTransactions	-2321000	USD
CY2019Q3	mfa	Noninterest Income Excluding Amounts Related To Mortgagebacked Securities And Linked Transactions NoninterestIncomeExcludingAmountsRelatedToMortgagebackedSecuritiesAndLinkedTransactions	4546000	USD
CY2019Q4	mfa	Noninterest Income Excluding Amounts Related To Mortgagebacked Securities And Linked Transactions NoninterestIncomeExcludingAmountsRelatedToMortgagebackedSecuritiesAndLinkedTransactions	2007000	USD
CY2019Q1	us-gaap	Costs And Expenses CostsAndExpenses	23433000	USD
CY2019Q2	us-gaap	Costs And Expenses CostsAndExpenses	23328000	USD
CY2019Q3	us-gaap	Costs And Expenses CostsAndExpenses	23381000	USD
CY2019Q4	us-gaap	Costs And Expenses CostsAndExpenses	24399000	USD
CY2019Q1	us-gaap	Net Income Loss NetIncomeLoss	88857000	USD
CY2019Q2	us-gaap	Net Income Loss NetIncomeLoss	93040000	USD
CY2019Q3	us-gaap	Net Income Loss NetIncomeLoss	95599000	USD
CY2019Q4	us-gaap	Net Income Loss NetIncomeLoss	100621000	USD
CY2019Q1	us-gaap	Preferred Stock Dividends Income Statement Impact PreferredStockDividendsIncomeStatementImpact	3750000	USD
CY2019Q2	us-gaap	Preferred Stock Dividends Income Statement Impact PreferredStockDividendsIncomeStatementImpact	3750000	USD
CY2019Q3	us-gaap	Preferred Stock Dividends Income Statement Impact PreferredStockDividendsIncomeStatementImpact	3750000	USD
CY2019Q4	us-gaap	Preferred Stock Dividends Income Statement Impact PreferredStockDividendsIncomeStatementImpact	3750000	USD
CY2019Q1	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	85107000	USD
CY2019Q2	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	89290000	USD
CY2019Q3	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	91849000	USD
CY2019Q4	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	96871000	USD
CY2019Q1	us-gaap	Earnings Per Share Basic And Diluted EarningsPerShareBasicAndDiluted	0.19
CY2019Q2	us-gaap	Earnings Per Share Basic And Diluted EarningsPerShareBasicAndDiluted	0.20
CY2019Q3	us-gaap	Earnings Per Share Basic And Diluted EarningsPerShareBasicAndDiluted	0.20
CY2019Q4	us-gaap	Earnings Per Share Basic And Diluted EarningsPerShareBasicAndDiluted	0.21
CY2020Q4	us-gaap	Financing Receivable Allowance For Credit Losses FinancingReceivableAllowanceForCreditLosses	86800000	USD

Files In Submission

Name	View Source	Status
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0001055160-21-000004-index.html	Edgar Link	pending
0001055160-21-000004.txt	Edgar Link	pending
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$MFA
MFA FINANCIAL, INC. Stock $mfa

2020 Q4 Form 10-K Financial Statement

#000105516021000004 Filed on February 23, 2021

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

Files In Submission

$MFA MFA FINANCIAL, INC. Stock $mfa

2020 Q4 Form 10-K Financial Statement

#000105516021000004 Filed on February 23, 2021

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

Files In Submission

$MFA
MFA FINANCIAL, INC. Stock $mfa