false--12-31Q320190001055160P36MP3MP1M0.1220.0050.0730.025P4Y6MP1M6DP4Y6MP1M6D7950000200045000004000P15YP30Y0.666761180700011642840000P3Y0.2410.5000.0801.0000.1590.0000.0610.0450.0000.00900.2450.5000.0801.0000.1780.0000.0600.0400.0000.00230000000.200.200.200.200.010.018869500008869500004497870004516920004497870004516920000.040.030.032575331000324890000048031500018093800002389549000377779000007200000164537200036578300000007386380008357620000.0750.0750.0750.0750.468750.468750.468750.468752525.002000000002000000000.010.018050000805000080000008000000800000080000002700000P5YP3Y2000000
0001055160
2019-01-01
2019-09-30
0001055160
2019-10-31
0001055160
us-gaap:CommonStockMember
2019-01-01
2019-09-30
0001055160
mfa:SeniorNoteDue2042Member
2019-01-01
2019-09-30
0001055160
mfa:A7.50SeriesBCumulativeRedeemablePreferredStockMember
2019-01-01
2019-09-30
0001055160
us-gaap:VariableInterestEntityPrimaryBeneficiaryMember
2019-09-30
0001055160
us-gaap:VariableInterestEntityPrimaryBeneficiaryMember
2018-12-31
0001055160
2019-09-30
0001055160
2018-12-31
0001055160
us-gaap:ResidentialMortgageBackedSecuritiesMember
2018-12-31
0001055160
us-gaap:ResidentialMortgageBackedSecuritiesMember
2019-09-30
0001055160
2018-01-01
2018-12-31
0001055160
us-gaap:CollateralPledgedMember
us-gaap:ResidentialMortgageBackedSecuritiesMember
2018-12-31
0001055160
us-gaap:CollateralPledgedMember
us-gaap:ResidentialMortgageBackedSecuritiesMember
2019-09-30
0001055160
2018-07-01
2018-09-30
0001055160
2019-07-01
2019-09-30
0001055160
2018-01-01
2018-09-30
0001055160
us-gaap:ResidentialMortgageBackedSecuritiesMember
2019-01-01
2019-09-30
0001055160
us-gaap:ResidentialMortgageBackedSecuritiesMember
2018-01-01
2018-09-30
0001055160
us-gaap:ResidentialMortgageBackedSecuritiesMember
2018-07-01
2018-09-30
0001055160
us-gaap:ResidentialMortgageBackedSecuritiesMember
2019-07-01
2019-09-30
0001055160
mfa:NonAgencyMBSCRTSecuritiesandMSRTermNotesMember
2018-07-01
2018-09-30
0001055160
mfa:NonAgencyMBSCRTSecuritiesandMSRTermNotesMember
2019-01-01
2019-09-30
0001055160
mfa:NonAgencyMBSCRTSecuritiesandMSRTermNotesMember
2018-01-01
2018-09-30
0001055160
mfa:NonAgencyMBSCRTSecuritiesandMSRTermNotesMember
2019-07-01
2019-09-30
0001055160
us-gaap:CommonStockMember
2019-09-30
0001055160
us-gaap:RetainedEarningsMember
2019-07-01
2019-09-30
0001055160
us-gaap:CommonStockMember
2019-07-01
2019-09-30
0001055160
us-gaap:AdditionalPaidInCapitalMember
2019-03-31
0001055160
us-gaap:CommonStockMember
2019-03-31
0001055160
us-gaap:RetainedEarningsMember
2019-04-01
2019-06-30
0001055160
us-gaap:AccumulatedOtherComprehensiveIncomeMember
2019-04-01
2019-06-30
0001055160
us-gaap:AdditionalPaidInCapitalMember
2019-07-01
2019-09-30
0001055160
us-gaap:SeriesBPreferredStockMember
us-gaap:PreferredStockMember
2019-06-30
0001055160
us-gaap:SeriesBPreferredStockMember
us-gaap:PreferredStockMember
2018-12-31
0001055160
2019-03-31
0001055160
us-gaap:AdditionalPaidInCapitalMember
2019-04-01
2019-06-30
0001055160
us-gaap:AdditionalPaidInCapitalMember
2019-01-01
2019-03-31
0001055160
us-gaap:AccumulatedOtherComprehensiveIncomeMember
2019-07-01
2019-09-30
0001055160
2019-01-01
2019-03-31
0001055160
us-gaap:AccumulatedOtherComprehensiveIncomeMember
2019-03-31
0001055160
2019-04-01
2019-06-30
0001055160
us-gaap:AccumulatedOtherComprehensiveIncomeMember
2019-09-30
0001055160
us-gaap:RetainedEarningsMember
2019-09-30
0001055160
us-gaap:SeriesBPreferredStockMember
us-gaap:PreferredStockMember
2019-09-30
0001055160
us-gaap:SeriesBPreferredStockMember
us-gaap:PreferredStockMember
2019-03-31
0001055160
us-gaap:CommonStockMember
2018-12-31
0001055160
us-gaap:CommonStockMember
2019-01-01
2019-03-31
0001055160
us-gaap:AdditionalPaidInCapitalMember
2019-09-30
0001055160
us-gaap:RetainedEarningsMember
2019-01-01
2019-03-31
0001055160
us-gaap:CommonStockMember
2019-06-30
0001055160
us-gaap:RetainedEarningsMember
2018-12-31
0001055160
us-gaap:CommonStockMember
2019-04-01
2019-06-30
0001055160
us-gaap:AccumulatedOtherComprehensiveIncomeMember
2019-01-01
2019-03-31
0001055160
us-gaap:RetainedEarningsMember
2019-06-30
0001055160
us-gaap:RetainedEarningsMember
2019-03-31
0001055160
us-gaap:AdditionalPaidInCapitalMember
2019-06-30
0001055160
2019-06-30
0001055160
us-gaap:AdditionalPaidInCapitalMember
2018-12-31
0001055160
us-gaap:AccumulatedOtherComprehensiveIncomeMember
2018-12-31
0001055160
us-gaap:AccumulatedOtherComprehensiveIncomeMember
2019-06-30
0001055160
us-gaap:CommonStockMember
2018-01-01
2018-09-30
0001055160
us-gaap:CommonStockMember
2019-01-01
2019-09-30
0001055160
us-gaap:RetainedEarningsMember
2018-07-01
2018-09-30
0001055160
us-gaap:SeriesBPreferredStockMember
us-gaap:PreferredStockMember
2018-09-30
0001055160
us-gaap:CommonStockMember
2018-03-31
0001055160
2018-04-01
2018-06-30
0001055160
us-gaap:RetainedEarningsMember
2018-03-31
0001055160
us-gaap:RetainedEarningsMember
2018-01-01
2018-03-31
0001055160
us-gaap:SeriesBPreferredStockMember
us-gaap:PreferredStockMember
2018-06-30
0001055160
2017-12-31
0001055160
2018-01-01
2018-03-31
0001055160
us-gaap:SeriesBPreferredStockMember
us-gaap:PreferredStockMember
2018-03-31
0001055160
us-gaap:CommonStockMember
2018-09-30
0001055160
2018-01-01
0001055160
us-gaap:AdditionalPaidInCapitalMember
2018-07-01
2018-09-30
0001055160
us-gaap:CommonStockMember
2017-12-31
0001055160
us-gaap:CommonStockMember
2018-07-01
2018-09-30
0001055160
us-gaap:AdditionalPaidInCapitalMember
2018-03-31
0001055160
us-gaap:RetainedEarningsMember
2018-09-30
0001055160
us-gaap:CommonStockMember
2018-01-01
2018-03-31
0001055160
us-gaap:RetainedEarningsMember
2018-04-01
2018-06-30
0001055160
us-gaap:AdditionalPaidInCapitalMember
2018-09-30
0001055160
us-gaap:AccumulatedOtherComprehensiveIncomeMember
2018-09-30
0001055160
us-gaap:SeriesBPreferredStockMember
us-gaap:PreferredStockMember
2017-12-31
0001055160
us-gaap:AccumulatedOtherComprehensiveIncomeMember
2018-07-01
2018-09-30
0001055160
us-gaap:AccumulatedOtherComprehensiveIncomeMember
2018-01-01
2018-03-31
0001055160
us-gaap:CommonStockMember
2018-04-01
2018-06-30
0001055160
us-gaap:AdditionalPaidInCapitalMember
2018-06-30
0001055160
us-gaap:AdditionalPaidInCapitalMember
2018-04-01
2018-06-30
0001055160
us-gaap:AccumulatedOtherComprehensiveIncomeMember
2017-12-31
0001055160
us-gaap:AdditionalPaidInCapitalMember
2018-01-01
2018-03-31
0001055160
us-gaap:AccumulatedOtherComprehensiveIncomeMember
2018-03-31
0001055160
2018-03-31
0001055160
us-gaap:AccumulatedOtherComprehensiveIncomeMember
2018-04-01
2018-06-30
0001055160
us-gaap:AdditionalPaidInCapitalMember
2017-12-31
0001055160
2018-09-30
0001055160
us-gaap:CommonStockMember
2018-06-30
0001055160
us-gaap:RetainedEarningsMember
2017-12-31
0001055160
us-gaap:RetainedEarningsMember
2018-01-01
0001055160
2018-06-30
0001055160
us-gaap:RetainedEarningsMember
2018-06-30
0001055160
us-gaap:AccumulatedOtherComprehensiveIncomeMember
2018-06-30
0001055160
us-gaap:SeriesBPreferredStockMember
us-gaap:PreferredStockMember
2018-01-01
2018-09-30
0001055160
us-gaap:SeriesBPreferredStockMember
us-gaap:PreferredStockMember
2019-01-01
2019-09-30
0001055160
us-gaap:SeriesBPreferredStockMember
2018-07-01
2018-09-30
0001055160
us-gaap:SeriesBPreferredStockMember
2019-07-01
2019-09-30
0001055160
us-gaap:SeriesBPreferredStockMember
2018-01-01
2018-03-31
0001055160
us-gaap:SeriesBPreferredStockMember
2019-01-01
2019-03-31
0001055160
us-gaap:BuildingMember
2019-01-01
2019-09-30
0001055160
mfa:SeniorNoteDue2042Member
2019-09-30
0001055160
mfa:ConvertibleSeniorNoteDue2024Member
2019-09-30
0001055160
srt:MaximumMember
us-gaap:PropertyPlantAndEquipmentOtherTypesMember
2019-01-01
2019-09-30
0001055160
us-gaap:RestrictedStockUnitsRSUMember
2014-01-01
2019-03-31
0001055160
srt:MinimumMember
us-gaap:PropertyPlantAndEquipmentOtherTypesMember
2019-01-01
2019-09-30
0001055160
us-gaap:MortgageBackedSecuritiesMember
2019-09-30
0001055160
us-gaap:MortgageBackedSecuritiesIssuedByUSGovernmentSponsoredEnterprisesMember
us-gaap:GovernmentNationalMortgageAssociationCertificatesAndObligationsGNMAMember
2019-09-30
0001055160
us-gaap:MortgageBackedSecuritiesIssuedByUSGovernmentSponsoredEnterprisesMember
us-gaap:FederalHomeLoanMortgageCorporationCertificatesAndObligationsFHLMCMember
2019-09-30
0001055160
mfa:NonAgencyMBSExpectedtoRecoverParMember
2019-09-30
0001055160
us-gaap:MortgageBackedSecuritiesIssuedByUSGovernmentSponsoredEnterprisesMember
us-gaap:FederalNationalMortgageAssociationCertificatesAndObligationsFNMAMember
2019-09-30
0001055160
us-gaap:MortgageBackedSecuritiesIssuedByPrivateEnterprisesMember
2019-09-30
0001055160
mfa:NonAgencyMBSExpectedtoRecoverLessThanParMember
2019-09-30
0001055160
mfa:NonAgencyMBSExpectedtoRecoverParMember
2018-12-31
0001055160
us-gaap:MortgageBackedSecuritiesIssuedByUSGovernmentSponsoredEnterprisesMember
us-gaap:FederalHomeLoanMortgageCorporationCertificatesAndObligationsFHLMCMember
2018-12-31
0001055160
mfa:NonAgencyMBSExpectedtoRecoverLessThanParMember
2018-12-31
0001055160
us-gaap:MortgageBackedSecuritiesMember
2018-12-31
0001055160
us-gaap:MortgageBackedSecuritiesIssuedByPrivateEnterprisesMember
2018-12-31
0001055160
us-gaap:MortgageBackedSecuritiesIssuedByUSGovernmentSponsoredEnterprisesMember
us-gaap:GovernmentNationalMortgageAssociationCertificatesAndObligationsGNMAMember
2018-12-31
0001055160
us-gaap:MortgageBackedSecuritiesIssuedByUSGovernmentSponsoredEnterprisesMember
us-gaap:FederalNationalMortgageAssociationCertificatesAndObligationsFNMAMember
2018-12-31
0001055160
us-gaap:MortgageBackedSecuritiesIssuedByPrivateEnterprisesMember
mfa:DiscountDesignatedAsCreditReservesAndOtherThanTemporaryImpairmentMember
2018-07-01
2018-09-30
0001055160
us-gaap:MortgageBackedSecuritiesIssuedByPrivateEnterprisesMember
mfa:DiscountDesignatedAsCreditReservesAndOtherThanTemporaryImpairmentMember
2019-06-30
0001055160
us-gaap:MortgageBackedSecuritiesIssuedByPrivateEnterprisesMember
mfa:AccretableDiscountMember
2018-07-01
2018-09-30
0001055160
us-gaap:MortgageBackedSecuritiesIssuedByPrivateEnterprisesMember
mfa:AccretableDiscountMember
2019-07-01
2019-09-30
0001055160
us-gaap:MortgageBackedSecuritiesIssuedByPrivateEnterprisesMember
mfa:DiscountDesignatedAsCreditReservesAndOtherThanTemporaryImpairmentMember
2019-09-30
0001055160
us-gaap:MortgageBackedSecuritiesIssuedByPrivateEnterprisesMember
mfa:DiscountDesignatedAsCreditReservesAndOtherThanTemporaryImpairmentMember
2019-07-01
2019-09-30
0001055160
us-gaap:MortgageBackedSecuritiesIssuedByPrivateEnterprisesMember
mfa:AccretableDiscountMember
2018-06-30
0001055160
us-gaap:MortgageBackedSecuritiesIssuedByPrivateEnterprisesMember
mfa:AccretableDiscountMember
2019-06-30
0001055160
us-gaap:MortgageBackedSecuritiesIssuedByPrivateEnterprisesMember
mfa:DiscountDesignatedAsCreditReservesAndOtherThanTemporaryImpairmentMember
2018-09-30
0001055160
us-gaap:MortgageBackedSecuritiesIssuedByPrivateEnterprisesMember
mfa:AccretableDiscountMember
2018-09-30
0001055160
us-gaap:MortgageBackedSecuritiesIssuedByPrivateEnterprisesMember
mfa:DiscountDesignatedAsCreditReservesAndOtherThanTemporaryImpairmentMember
2018-06-30
0001055160
us-gaap:MortgageBackedSecuritiesIssuedByPrivateEnterprisesMember
mfa:AccretableDiscountMember
2019-09-30
0001055160
us-gaap:MortgageBackedSecuritiesIssuedByPrivateEnterprisesMember
mfa:DiscountDesignatedAsCreditReservesAndOtherThanTemporaryImpairmentMember
2018-01-01
2018-09-30
0001055160
us-gaap:MortgageBackedSecuritiesIssuedByPrivateEnterprisesMember
mfa:DiscountDesignatedAsCreditReservesAndOtherThanTemporaryImpairmentMember
2019-01-01
2019-09-30
0001055160
us-gaap:MortgageBackedSecuritiesIssuedByPrivateEnterprisesMember
mfa:AccretableDiscountMember
2018-12-31
0001055160
us-gaap:MortgageBackedSecuritiesIssuedByPrivateEnterprisesMember
mfa:AccretableDiscountMember
2018-01-01
2018-09-30
0001055160
us-gaap:MortgageBackedSecuritiesIssuedByPrivateEnterprisesMember
mfa:AccretableDiscountMember
2017-12-31
0001055160
us-gaap:MortgageBackedSecuritiesIssuedByPrivateEnterprisesMember
mfa:AccretableDiscountMember
2019-01-01
2019-09-30
0001055160
us-gaap:MortgageBackedSecuritiesIssuedByPrivateEnterprisesMember
mfa:DiscountDesignatedAsCreditReservesAndOtherThanTemporaryImpairmentMember
2018-12-31
0001055160
us-gaap:MortgageBackedSecuritiesIssuedByPrivateEnterprisesMember
mfa:DiscountDesignatedAsCreditReservesAndOtherThanTemporaryImpairmentMember
2017-12-31
0001055160
us-gaap:MortgageBackedSecuritiesIssuedByPrivateEnterprisesMember
2019-01-01
2019-09-30
0001055160
us-gaap:MortgageBackedSecuritiesIssuedByPrivateEnterprisesMember
2018-01-01
2018-09-30
0001055160
mfa:MSRRelatedAssetsMember
2019-07-01
2019-09-30
0001055160
mfa:MSRRelatedAssetsMember
2019-01-01
2019-09-30
0001055160
us-gaap:MortgageBackedSecuritiesIssuedByPrivateEnterprisesMember
2018-07-01
2018-09-30
0001055160
us-gaap:MortgageBackedSecuritiesIssuedByPrivateEnterprisesMember
2019-07-01
2019-09-30
0001055160
mfa:MSRRelatedAssetsMember
2018-01-01
2018-09-30
0001055160
mfa:MSRRelatedAssetsMember
2018-07-01
2018-09-30
0001055160
us-gaap:MortgageBackedSecuritiesOtherMember
2018-12-31
0001055160
srt:MinimumMember
mfa:CorporateLoanMember
2019-09-30
0001055160
mfa:AgencyMBSFairValueOptionMember
2018-12-31
0001055160
mfa:LegacyNonAgencyMBSMember
2018-07-01
2018-09-30
0001055160
mfa:CorporateLoanMember
2019-09-30
0001055160
mfa:TermNotesbackedbyMSRRelatedCollateralMember
2018-12-31
0001055160
mfa:AgencyMBSFairValueOptionMember
2019-09-30
0001055160
us-gaap:MortgageBackedSecuritiesOtherMember
2019-09-30
0001055160
mfa:TermNotesbackedbyMSRRelatedCollateralMember
2019-09-30
0001055160
us-gaap:MortgageBackedSecuritiesOtherMember
2018-01-01
2018-09-30
0001055160
mfa:CorporateLoanMember
2019-07-01
2019-09-30
0001055160
mfa:TermNotesbackedbyMSRRelatedCollateralMember
2019-01-01
2019-09-30
0001055160
mfa:LehmanBrothersHoldingsMember
2018-07-01
2018-09-30
0001055160
mfa:LegacyNonAgencyMBSMember
2019-01-01
2019-09-30
0001055160
mfa:LegacyNonAgencyMBSMember
2018-01-01
2018-09-30
0001055160
mfa:CRTFairValueOptionMember
2019-09-30
0001055160
mfa:TermNotesbackedbyMSRRelatedCollateralMember
2018-01-01
2018-09-30
0001055160
mfa:CorporateLoanMember
2019-01-01
2019-09-30
0001055160
mfa:CorporateLoanMember
2018-03-31
0001055160
mfa:CRTFairValueOptionMember
2018-12-31
0001055160
mfa:JpMorganChaseMember
2019-01-01
2019-09-30
0001055160
us-gaap:MortgageBackedSecuritiesOtherMember
2018-07-01
2018-09-30
0001055160
us-gaap:MortgageBackedSecuritiesIssuedByPrivateEnterprisesMember
2018-01-01
2018-12-31
0001055160
mfa:CorporateLoanMember
2016-12-31
0001055160
srt:MaximumMember
us-gaap:MortgageBackedSecuritiesOtherMember
2019-01-01
2019-09-30
0001055160
srt:MaximumMember
mfa:CorporateLoanMember
2019-09-30
0001055160
mfa:JpMorganChaseMember
2018-07-01
2018-09-30
0001055160
us-gaap:MortgageBackedSecuritiesOtherMember
2019-01-01
2019-09-30
0001055160
mfa:CRTinLossPositionsOnlyFairValueOptionMember
2019-09-30
0001055160
us-gaap:MortgageBackedSecuritiesOtherMember
2019-07-01
2019-09-30
0001055160
mfa:LegacyNonAgencyMBSMember
2019-07-01
2019-09-30
0001055160
mfa:LehmanBrothersHoldingsMember
2018-01-01
2018-09-30
0001055160
srt:MinimumMember
us-gaap:MortgageBackedSecuritiesOtherMember
2019-01-01
2019-09-30
0001055160
mfa:NonQMLoansMember
2019-09-30
0001055160
mfa:RehabilitationLoansMember
2018-12-31
0001055160
mfa:SeasonedPerformingLoansMember
2018-12-31
0001055160
mfa:NonQMLoansMember
2018-12-31
0001055160
mfa:RehabilitationLoansMember
2019-09-30
0001055160
mfa:SeasonedPerformingLoansMember
2019-09-30
0001055160
mfa:SingleFamilyRentalLoansMember
2019-09-30
0001055160
mfa:SingleFamilyRentalLoansMember
2018-12-31
0001055160
mfa:CreditImpairedLoansMember
2018-09-30
0001055160
mfa:CreditImpairedLoansMember
2019-09-30
0001055160
mfa:CreditImpairedLoansMember
2019-06-30
0001055160
mfa:CreditImpairedLoansMember
2018-06-30
0001055160
mfa:CreditImpairedLoansMember
2019-07-01
2019-09-30
0001055160
mfa:CreditImpairedLoansMember
2019-01-01
2019-09-30
0001055160
mfa:CreditImpairedLoansMember
2018-01-01
2018-09-30
0001055160
mfa:CreditImpairedLoansMember
2017-12-31
0001055160
mfa:CreditImpairedLoansMember
2018-12-31
0001055160
mfa:CreditImpairedLoansMember
2018-07-01
2018-09-30
0001055160
mfa:RehabilitationLoansMember
2019-09-30
0001055160
mfa:PurchasedPerformingLoansMember
2019-09-30
0001055160
mfa:PurchasedPerformingLoansMember
2018-01-01
2018-09-30
0001055160
mfa:PurchasedPerformingLoansMember
2019-01-01
2019-09-30
0001055160
mfa:CertainRehabilitationLoansMember
mfa:SettledWholeLoansMember
2019-09-30
0001055160
mfa:PurchasedPerformingLoansMember
2019-07-01
2019-09-30
0001055160
mfa:CertainRehabilitationLoansMember
2019-09-30
0001055160
mfa:CertainRehabilitationLoansMember
mfa:SettledWholeLoansMember
2019-01-01
2019-09-30
0001055160
mfa:CreditImpairedLoansMember
mfa:ResidentialWholeLoansMember
2018-09-30
0001055160
mfa:SingleFamilyRentalLoansMember
mfa:ResidentialWholeLoansMember
2019-07-01
2019-09-30
0001055160
mfa:SeasonedPerformingLoansMember
mfa:ResidentialWholeLoansMember
2018-01-01
2018-09-30
0001055160
mfa:RehabilitationLoansMember
mfa:ResidentialWholeLoansMember
2018-01-01
2018-09-30
0001055160
mfa:ResidentialWholeLoansMember
2018-07-01
2018-09-30
0001055160
mfa:CreditImpairedLoansMember
mfa:ResidentialWholeLoansMember
2019-01-01
2019-09-30
0001055160
mfa:CreditImpairedLoansMember
mfa:ResidentialWholeLoansMember
2019-07-01
2019-09-30
0001055160
mfa:RehabilitationLoansMember
mfa:ResidentialWholeLoansMember
2018-07-01
2018-09-30
0001055160
mfa:NonQMLoansMember
mfa:ResidentialWholeLoansMember
2019-07-01
2019-09-30
0001055160
mfa:SeasonedPerformingLoansMember
mfa:ResidentialWholeLoansMember
2019-01-01
2019-09-30
0001055160
mfa:SingleFamilyRentalLoansMember
mfa:ResidentialWholeLoansMember
2019-01-01
2019-09-30
0001055160
mfa:SeasonedPerformingLoansMember
mfa:ResidentialWholeLoansMember
2018-07-01
2018-09-30
0001055160
mfa:SingleFamilyRentalLoansMember
mfa:ResidentialWholeLoansMember
2018-01-01
2018-09-30
0001055160
mfa:CreditImpairedLoansMember
mfa:ResidentialWholeLoansMember
2018-07-01
2018-09-30
0001055160
mfa:ResidentialWholeLoansMember
2019-07-01
2019-09-30
0001055160
mfa:ResidentialWholeLoansMember
2019-01-01
2019-09-30
0001055160
mfa:PurchasedPerformingLoansMember
mfa:ResidentialWholeLoansMember
2018-01-01
2018-09-30
0001055160
mfa:RehabilitationLoansMember
mfa:ResidentialWholeLoansMember
2019-07-01
2019-09-30
0001055160
mfa:PurchasedPerformingLoansMember
mfa:ResidentialWholeLoansMember
2019-07-01
2019-09-30
0001055160
mfa:RehabilitationLoansMember
mfa:ResidentialWholeLoansMember
2019-01-01
2019-09-30
0001055160
mfa:CreditImpairedLoansMember
mfa:ResidentialWholeLoansMember
2018-01-01
2018-09-30
0001055160
mfa:PurchasedPerformingLoansMember
mfa:ResidentialWholeLoansMember
2018-07-01
2018-09-30
0001055160
mfa:SeasonedPerformingLoansMember
mfa:ResidentialWholeLoansMember
2019-07-01
2019-09-30
0001055160
mfa:NonQMLoansMember
mfa:ResidentialWholeLoansMember
2018-01-01
2018-09-30
0001055160
mfa:ResidentialWholeLoansMember
2018-01-01
2018-09-30
0001055160
mfa:NonQMLoansMember
mfa:ResidentialWholeLoansMember
2019-01-01
2019-09-30
0001055160
mfa:SingleFamilyRentalLoansMember
mfa:ResidentialWholeLoansMember
2018-07-01
2018-09-30
0001055160
mfa:PurchasedPerformingLoansMember
mfa:ResidentialWholeLoansMember
2019-01-01
2019-09-30
0001055160
mfa:NonQMLoansMember
mfa:ResidentialWholeLoansMember
2018-07-01
2018-09-30
0001055160
mfa:FinancingReceivables60OrMoreDaysPastDueMember
2018-01-01
2018-12-31
0001055160
mfa:FinancingReceivables60OrMoreDaysPastDueMember
2019-09-30
0001055160
us-gaap:FinancingReceivablesEqualToGreaterThan90DaysPastDueMember
2018-12-31
0001055160
us-gaap:FinancingReceivablesEqualToGreaterThan90DaysPastDueMember
2019-01-01
2019-09-30
0001055160
mfa:FinancingReceivablesLessThan60DaysPastDueMember
2019-01-01
2019-09-30
0001055160
us-gaap:FinancingReceivablesEqualToGreaterThan90DaysPastDueMember
2019-09-30
0001055160
mfa:FinancingReceivablesLessThan60DaysPastDueMember
2018-01-01
2018-12-31
0001055160
mfa:FinancingReceivables60OrMoreDaysPastDueMember
2019-01-01
2019-09-30
0001055160
mfa:FinancingReceivables60OrMoreDaysPastDueMember
2018-12-31
0001055160
us-gaap:FinancingReceivablesEqualToGreaterThan90DaysPastDueMember
2018-01-01
2018-12-31
0001055160
mfa:FinancingReceivablesLessThan60DaysPastDueMember
2019-09-30
0001055160
mfa:FinancingReceivablesLessThan60DaysPastDueMember
2018-12-31
0001055160
mfa:NonQMLoansMember
mfa:SettledWholeLoansMember
2019-09-30
0001055160
mfa:SingleFamilyRentalLoansMember
mfa:SettledWholeLoansMember
us-gaap:FinancingReceivables1To29DaysPastDueMember
2019-09-30
0001055160
mfa:SingleFamilyRentalLoansMember
mfa:SettledWholeLoansMember
2019-09-30
0001055160
mfa:RehabilitationLoansMember
mfa:SettledWholeLoansMember
2019-09-30
0001055160
mfa:SeasonedPerformingLoansMember
mfa:SettledWholeLoansMember
us-gaap:FinancingReceivables60To89DaysPastDueMember
2019-09-30
0001055160
mfa:SingleFamilyRentalLoansMember
mfa:SettledWholeLoansMember
2019-01-01
2019-09-30
0001055160
mfa:RehabilitationLoansMember
mfa:SettledWholeLoansMember
us-gaap:FinancingReceivablesEqualToGreaterThan90DaysPastDueMember
2019-09-30
0001055160
mfa:SeasonedPerformingLoansMember
mfa:SettledWholeLoansMember
2019-09-30
0001055160
mfa:SingleFamilyRentalLoansMember
mfa:SettledWholeLoansMember
us-gaap:FinancingReceivables60To89DaysPastDueMember
2019-09-30
0001055160
mfa:CreditImpairedLoansMember
mfa:SettledWholeLoansMember
2019-09-30
0001055160
mfa:SettledWholeLoansMember
2019-09-30
0001055160
mfa:SeasonedPerformingLoansMember
mfa:SettledWholeLoansMember
us-gaap:FinancingReceivables30To59DaysPastDueMember
2019-09-30
0001055160
mfa:SeasonedPerformingLoansMember
mfa:SettledWholeLoansMember
2019-01-01
2019-09-30
0001055160
mfa:SingleFamilyRentalLoansMember
mfa:SettledWholeLoansMember
us-gaap:FinancingReceivables30To59DaysPastDueMember
2019-09-30
0001055160
mfa:RehabilitationLoansMember
mfa:SettledWholeLoansMember
us-gaap:FinancingReceivables30To59DaysPastDueMember
2019-09-30
0001055160
mfa:RehabilitationLoansMember
mfa:SettledWholeLoansMember
2019-01-01
2019-09-30
0001055160
mfa:NonQMLoansMember
mfa:SettledWholeLoansMember
us-gaap:FinancingReceivablesEqualToGreaterThan90DaysPastDueMember
2019-09-30
0001055160
mfa:NonQMLoansMember
mfa:SettledWholeLoansMember
2019-01-01
2019-09-30
0001055160
mfa:SingleFamilyRentalLoansMember
mfa:SettledWholeLoansMember
us-gaap:FinancingReceivablesEqualToGreaterThan90DaysPastDueMember
2019-09-30
0001055160
mfa:RehabilitationLoansMember
mfa:SettledWholeLoansMember
us-gaap:FinancingReceivables1To29DaysPastDueMember
2019-09-30
0001055160
mfa:NonQMLoansMember
mfa:SettledWholeLoansMember
us-gaap:FinancingReceivables1To29DaysPastDueMember
2019-09-30
0001055160
mfa:CreditImpairedLoansMember
mfa:SettledWholeLoansMember
2019-01-01
2019-09-30
0001055160
mfa:SettledWholeLoansMember
2019-01-01
2019-09-30
0001055160
mfa:SeasonedPerformingLoansMember
mfa:SettledWholeLoansMember
us-gaap:FinancingReceivables1To29DaysPastDueMember
2019-09-30
0001055160
mfa:SeasonedPerformingLoansMember
mfa:SettledWholeLoansMember
us-gaap:FinancingReceivablesEqualToGreaterThan90DaysPastDueMember
2019-09-30
0001055160
mfa:RehabilitationLoansMember
mfa:SettledWholeLoansMember
us-gaap:FinancingReceivables60To89DaysPastDueMember
2019-09-30
0001055160
mfa:NonQMLoansMember
mfa:SettledWholeLoansMember
us-gaap:FinancingReceivables60To89DaysPastDueMember
2019-09-30
0001055160
mfa:NonQMLoansMember
mfa:SettledWholeLoansMember
us-gaap:FinancingReceivables30To59DaysPastDueMember
2019-09-30
0001055160
us-gaap:CarryingReportedAmountFairValueDisclosureMember
2019-09-30
0001055160
us-gaap:EstimateOfFairValueFairValueDisclosureMember
2019-09-30
0001055160
mfa:LoanOriginatorsMember
2019-09-30
0001055160
mfa:LoanOriginatorsMember
us-gaap:PreferredStockMember
2019-09-30
0001055160
us-gaap:InterestRateSwapMember
2019-07-01
2019-09-30
0001055160
us-gaap:InterestRateSwapMember
2018-07-01
2018-09-30
0001055160
us-gaap:InterestRateSwapMember
2019-01-01
2019-09-30
0001055160
us-gaap:InterestRateSwapMember
2018-01-01
2018-09-30
0001055160
us-gaap:InterestRateContractMember
2019-09-30
0001055160
us-gaap:InterestRateContractMember
us-gaap:USGovernmentAgenciesDebtSecuritiesMember
2019-09-30
0001055160
us-gaap:InterestRateContractMember
mfa:RestrictedCashMember
2019-09-30
0001055160
us-gaap:InterestRateContractMember
2018-12-31
0001055160
us-gaap:InterestRateContractMember
mfa:RestrictedCashMember
2018-12-31
0001055160
us-gaap:InterestRateContractMember
us-gaap:USGovernmentAgenciesDebtSecuritiesMember
2018-12-31
0001055160
us-gaap:SwapMember
us-gaap:NondesignatedMember
2019-01-01
2019-09-30
0001055160
us-gaap:SwapMember
us-gaap:NondesignatedMember
2018-01-01
2018-09-30
0001055160
us-gaap:InterestRateSwapMember
us-gaap:DesignatedAsHedgingInstrumentMember
2019-01-01
2019-09-30
0001055160
us-gaap:SwapMember
us-gaap:NondesignatedMember
2018-07-01
2018-09-30
0001055160
us-gaap:InterestRateSwapMember
us-gaap:DesignatedAsHedgingInstrumentMember
2019-09-30
0001055160
us-gaap:SwapMember
us-gaap:NondesignatedMember
2019-07-01
2019-09-30
0001055160
srt:MaximumMember
us-gaap:InterestRateSwapMember
us-gaap:DesignatedAsHedgingInstrumentMember
2019-01-01
2019-09-30
0001055160
mfa:DerivativeMaturityOver24MonthsTo36MonthsMember
us-gaap:InterestRateSwapMember
2018-12-31
0001055160
mfa:DerivativeMaturityOver36MonthsTo48MonthsMember
us-gaap:InterestRateSwapMember
2019-09-30
0001055160
mfa:DerivativeMaturityWithin30DaysMember
us-gaap:InterestRateSwapMember
2019-09-30
0001055160
us-gaap:InterestRateSwapMember
2019-09-30
0001055160
mfa:DerivativeMaturityWithin30DaysMember
us-gaap:InterestRateSwapMember
2018-12-31
0001055160
mfa:DerivativeMaturityOver48MonthsTo60MonthsMember
us-gaap:InterestRateSwapMember
2019-09-30
0001055160
mfa:DerivativeMaturityOver6MonthsTo12MonthsMember
us-gaap:InterestRateSwapMember
2019-09-30
0001055160
mfa:DerivativeMaturityOver12MonthsTo24MonthsMember
us-gaap:InterestRateSwapMember
2018-12-31
0001055160
mfa:DerivativeMaturityOver36MonthsTo48MonthsMember
us-gaap:InterestRateSwapMember
2018-12-31
0001055160
us-gaap:InterestRateSwapMember
2018-12-31
0001055160
mfa:DerivativeMaturityOver30DaysTo3MonthsMember
us-gaap:InterestRateSwapMember
2019-09-30
0001055160
mfa:DerivativeMaturityOver84MonthsMember
us-gaap:InterestRateSwapMember
2019-09-30
0001055160
mfa:DerivativeMaturityOver48MonthsTo60MonthsMember
us-gaap:InterestRateSwapMember
2018-12-31
0001055160
mfa:DerivativeMaturityOver84MonthsMember
us-gaap:InterestRateSwapMember
2018-12-31
0001055160
mfa:DerivativeMaturityOver12MonthsTo24MonthsMember
us-gaap:InterestRateSwapMember
2019-09-30
0001055160
mfa:DerivativeMaturityOver3MonthsTo6MonthsMember
us-gaap:InterestRateSwapMember
2018-12-31
0001055160
mfa:DerivativeMaturityOver30DaysTo3MonthsMember
us-gaap:InterestRateSwapMember
2018-12-31
0001055160
mfa:DerivativeMaturityOver24MonthsTo36MonthsMember
us-gaap:InterestRateSwapMember
2019-09-30
0001055160
mfa:DerivativeMaturityOver3MonthsTo6MonthsMember
us-gaap:InterestRateSwapMember
2019-09-30
0001055160
mfa:DerivativeMaturityOver6MonthsTo12MonthsMember
us-gaap:InterestRateSwapMember
2018-12-31
0001055160
mfa:Swaps2Member
us-gaap:DesignatedAsHedgingInstrumentMember
2018-12-31
0001055160
us-gaap:SwapMember
us-gaap:NondesignatedMember
2019-09-30
0001055160
us-gaap:SwapMember
us-gaap:NondesignatedMember
2018-12-31
0001055160
mfa:Swaps2Member
us-gaap:DesignatedAsHedgingInstrumentMember
2019-09-30
0001055160
srt:MaximumMember
us-gaap:InterestRateSwapMember
us-gaap:LondonInterbankOfferedRateLIBORMember
2019-01-01
2019-09-30
0001055160
srt:MinimumMember
us-gaap:InterestRateSwapMember
us-gaap:LondonInterbankOfferedRateLIBORMember
2019-01-01
2019-09-30
0001055160
mfa:MSRAssetFinancingMember
2018-12-31
0001055160
mfa:MSRAssetFinancingMember
2019-09-30
0001055160
mfa:ResidentialLoansAtFairValueMember
2018-12-31
0001055160
mfa:WellsFargoSecuritiesLlcMember
2019-09-30
0001055160
srt:MaximumMember
2019-01-01
2019-09-30
0001055160
us-gaap:SecuritiesSoldUnderAgreementsToRepurchaseMember
2019-01-01
2019-09-30
0001055160
mfa:CreditSuisseMember
2019-09-30
0001055160
srt:MinimumMember
2019-01-01
2019-09-30
0001055160
mfa:GoldmanSachsLendingPartnersMember
2019-09-30
0001055160
mfa:ResidentialLoansAtFairValueMember
2019-09-30
0001055160
srt:MaximumMember
mfa:MSRAssetFinancingMember
2019-01-01
2019-09-30
0001055160
srt:MinimumMember
mfa:MSRAssetFinancingMember
2019-01-01
2019-09-30
0001055160
us-gaap:SecuritiesSoldUnderAgreementsToRepurchaseMember
2018-01-01
2018-12-31
0001055160
mfa:RBCBarbadosMember
2019-09-30
0001055160
mfa:CreditSuisseCaymanMember
2019-09-30
0001055160
us-gaap:SecuritiesSoldUnderAgreementsToRepurchaseMember
2018-12-31
0001055160
mfa:RBCNewYorkMember
2019-09-30
0001055160
us-gaap:SecuritiesSoldUnderAgreementsToRepurchaseMember
2019-09-30
0001055160
mfa:GoldmanSachsBankUSAMember
2019-09-30
0001055160
mfa:WellsFargoBankMember
2019-09-30
0001055160
mfa:LoanSecuritizationMember
2019-09-30
0001055160
mfa:LoanSecuritizationMember
2018-12-31
0001055160
mfa:InterestRateResetOver30DaysTo3MonthsMember
us-gaap:SecuritiesSoldUnderAgreementsToRepurchaseMember
2018-12-31
0001055160
mfa:InterestRateResetOver3Monthsto12MonthsMember
us-gaap:SecuritiesSoldUnderAgreementsToRepurchaseMember
2019-09-30
0001055160
mfa:InterestRateResetOver30DaysTo3MonthsMember
us-gaap:SecuritiesSoldUnderAgreementsToRepurchaseMember
2019-09-30
0001055160
mfa:InterestRateResetWithin30DaysMember
us-gaap:SecuritiesSoldUnderAgreementsToRepurchaseMember
2019-09-30
0001055160
mfa:InterestRateResetOver12MonthsMember
us-gaap:SecuritiesSoldUnderAgreementsToRepurchaseMember
2018-12-31
0001055160
mfa:InterestRateResetWithin30DaysMember
us-gaap:SecuritiesSoldUnderAgreementsToRepurchaseMember
2018-12-31
0001055160
mfa:InterestRateResetOver12MonthsMember
us-gaap:SecuritiesSoldUnderAgreementsToRepurchaseMember
2019-09-30
0001055160
mfa:InterestRateResetOver3Monthsto12MonthsMember
us-gaap:SecuritiesSoldUnderAgreementsToRepurchaseMember
2018-12-31
0001055160
mfa:MaturityOver12MonthsMember
us-gaap:OtherInvestmentsMember
2019-09-30
0001055160
us-gaap:MaturityOvernightMember
us-gaap:OtherInvestmentsMember
2019-09-30
0001055160
us-gaap:MaturityUpTo30DaysMember
us-gaap:SecuritiesSoldUnderAgreementsToRepurchaseMember
2019-09-30
0001055160
us-gaap:MaturityOvernightMember
us-gaap:SecuritiesSoldUnderAgreementsToRepurchaseMember
2019-09-30
0001055160
us-gaap:MaturityOvernightMember
mfa:OtherInterestEarningAssetsMember
2019-09-30
0001055160
mfa:MaturityOver90DaysTo12MonthsMember
us-gaap:SecuritiesSoldUnderAgreementsToRepurchaseMember
2019-09-30
0001055160
mfa:MaturityOver90DaysTo12MonthsMember
us-gaap:MortgageBackedSecuritiesOtherMember
2019-09-30
0001055160
mfa:MaturityOver12MonthsMember
us-gaap:SecuritiesSoldUnderAgreementsToRepurchaseMember
2019-09-30
0001055160
mfa:MaturityOver90DaysTo12MonthsMember
us-gaap:OtherInvestmentsMember
2019-09-30
0001055160
us-gaap:MaturityUpTo30DaysMember
us-gaap:MortgageBackedSecuritiesOtherMember
2019-09-30
0001055160
mfa:OtherInterestEarningAssetsMember
2019-09-30
0001055160
mfa:MaturityOver90DaysTo12MonthsMember
mfa:OtherInterestEarningAssetsMember
2019-09-30
0001055160
mfa:MaturityOver12MonthsMember
us-gaap:MortgageBackedSecuritiesIssuedByPrivateEnterprisesMember
2019-09-30
0001055160
us-gaap:Maturity30To90DaysMember
us-gaap:SecuritiesSoldUnderAgreementsToRepurchaseMember
2019-09-30
0001055160
us-gaap:MaturityUpTo30DaysMember
mfa:OtherInterestEarningAssetsMember
2019-09-30
0001055160
us-gaap:MaturityUpTo30DaysMember
us-gaap:OtherInvestmentsMember
2019-09-30
0001055160
us-gaap:MaturityOvernightMember
us-gaap:LoansReceivableMember
2019-09-30
0001055160
mfa:MaturityOver90DaysTo12MonthsMember
us-gaap:LoansReceivableMember
2019-09-30
0001055160
us-gaap:Maturity30To90DaysMember
us-gaap:MortgageBackedSecuritiesOtherMember
2019-09-30
0001055160
mfa:MaturityOver12MonthsMember
us-gaap:LoansReceivableMember
2019-09-30
0001055160
us-gaap:OtherInvestmentsMember
2019-09-30
0001055160
us-gaap:Maturity30To90DaysMember
mfa:OtherInterestEarningAssetsMember
2019-09-30
0001055160
mfa:MaturityOver90DaysTo12MonthsMember
us-gaap:MortgageBackedSecuritiesIssuedByPrivateEnterprisesMember
2019-09-30
0001055160
us-gaap:Maturity30To90DaysMember
us-gaap:LoansReceivableMember
2019-09-30
0001055160
mfa:MaturityOver12MonthsMember
us-gaap:MortgageBackedSecuritiesOtherMember
2019-09-30
0001055160
us-gaap:Maturity30To90DaysMember
us-gaap:OtherInvestmentsMember
2019-09-30
0001055160
us-gaap:LoansReceivableMember
2019-09-30
0001055160
mfa:MaturityOver12MonthsMember
mfa:OtherInterestEarningAssetsMember
2019-09-30
0001055160
us-gaap:MaturityOvernightMember
us-gaap:MortgageBackedSecuritiesOtherMember
2019-09-30
0001055160
us-gaap:MaturityUpTo30DaysMember
us-gaap:LoansReceivableMember
2019-09-30
0001055160
us-gaap:Maturity30To90DaysMember
us-gaap:MortgageBackedSecuritiesIssuedByPrivateEnterprisesMember
2019-09-30
0001055160
us-gaap:MaturityUpTo30DaysMember
us-gaap:MortgageBackedSecuritiesIssuedByPrivateEnterprisesMember
2019-09-30
0001055160
us-gaap:MaturityOvernightMember
us-gaap:MortgageBackedSecuritiesIssuedByPrivateEnterprisesMember
2019-09-30
0001055160
mfa:RBCMember
2019-09-30
0001055160
mfa:GoldmanSachsMember
2019-01-01
2019-09-30
0001055160
mfa:GoldmanSachsMember
2019-09-30
0001055160
mfa:CreditSuisse1Member
2019-09-30
0001055160
mfa:CreditSuisse1Member
2019-01-01
2019-09-30
0001055160
mfa:BarclaysBankMember
2019-01-01
2019-09-30
0001055160
mfa:WellsFargoMember
2019-09-30
0001055160
mfa:BarclaysBankMember
2019-09-30
0001055160
mfa:RBCMember
2019-01-01
2019-09-30
0001055160
mfa:WellsFargoMember
2019-01-01
2019-09-30
0001055160
us-gaap:LoansReceivableMember
2018-12-31
0001055160
mfa:OtherInterestEarningAssetsMember
2018-12-31
0001055160
us-gaap:OtherInvestmentsMember
2018-12-31
0001055160
us-gaap:ConvertibleDebtMember
2019-06-03
0001055160
us-gaap:ConvertibleDebtMember
2019-06-03
2019-06-03
0001055160
mfa:AdditionalConvertibleSeniorNotesMember
2019-06-03
2019-06-03
0001055160
us-gaap:SeniorSubordinatedNotesMember
2012-04-11
2012-04-11
0001055160
us-gaap:SeniorSubordinatedNotesMember
2012-04-11
0001055160
us-gaap:SeniorSubordinatedNotesMember
2012-04-10
2012-04-11
0001055160
mfa:CorporateHeadquartersMember
2019-01-01
2019-09-30
0001055160
mfa:NewCorporateHeadquartersLocationMember
2019-09-30
0001055160
mfa:CorporateLoans2Member
2019-09-30
0001055160
mfa:CorporateHeadquartersMember
2019-07-01
2019-09-30
0001055160
mfa:ResidentialWholeLoansMember
2019-09-30
0001055160
mfa:DiscountWaiverDirectStockPurchaseAndDividendReinvestmentPlanMember
2019-01-01
2019-09-30
0001055160
mfa:AtTheMarketMember
2019-07-01
2019-09-30
0001055160
us-gaap:SeriesBPreferredStockMember
us-gaap:PreferredStockMember
2013-04-15
2013-04-15
0001055160
us-gaap:SeriesBPreferredStockMember
us-gaap:PreferredStockMember
2013-04-15
0001055160
2013-12-31
0001055160
mfa:DiscountWaiverDirectStockPurchaseAndDividendReinvestmentPlanMember
2003-09-01
2019-03-31
0001055160
mfa:PublicOfferingMember
2018-09-05
2018-09-05
0001055160
2005-08-31
0001055160
mfa:DiscountWaiverDirectStockPurchaseAndDividendReinvestmentPlanMember
2019-07-01
2019-09-30
0001055160
srt:WeightedAverageMember
mfa:AtTheMarketMember
2019-09-30
0001055160
mfa:AtTheMarketMember
2019-09-30
0001055160
mfa:DiscountWaiverDirectStockPurchaseAndDividendReinvestmentPlanMember
2019-09-30
0001055160
mfa:AtTheMarketMember
2019-08-16
0001055160
mfa:DiscountWaiverDirectStockPurchaseAndDividendReinvestmentPlanMember
2016-09-16
0001055160
us-gaap:AccumulatedGainLossNetCashFlowHedgeParentMember
2019-07-01
2019-09-30
0001055160
us-gaap:AccumulatedNetUnrealizedInvestmentGainLossMember
2019-01-01
2019-09-30
0001055160
us-gaap:AccumulatedGainLossNetCashFlowHedgeParentMember
2019-01-01
2019-09-30
0001055160
us-gaap:AccumulatedGainLossNetCashFlowHedgeParentMember
2019-09-30
0001055160
us-gaap:AccumulatedNetUnrealizedInvestmentGainLossMember
2018-12-31
0001055160
us-gaap:AccumulatedNetUnrealizedInvestmentGainLossMember
2019-09-30
0001055160
us-gaap:AccumulatedNetUnrealizedInvestmentGainLossMember
2019-07-01
2019-09-30
0001055160
us-gaap:AccumulatedGainLossNetCashFlowHedgeParentMember
2018-12-31
0001055160
us-gaap:AccumulatedGainLossNetCashFlowHedgeParentMember
2019-06-30
0001055160
us-gaap:AccumulatedNetUnrealizedInvestmentGainLossMember
2019-06-30
0001055160
2019-06-12
2019-06-12
0001055160
2019-09-12
2019-09-12
0001055160
2019-03-06
2019-03-06
0001055160
us-gaap:AccumulatedNetUnrealizedInvestmentGainLossMember
2018-01-01
2018-09-30
0001055160
us-gaap:AccumulatedGainLossNetCashFlowHedgeParentMember
2018-09-30
0001055160
us-gaap:AccumulatedGainLossNetCashFlowHedgeParentMember
2018-06-30
0001055160
us-gaap:AccumulatedNetUnrealizedInvestmentGainLossMember
2017-12-31
0001055160
us-gaap:AccumulatedNetUnrealizedInvestmentGainLossMember
2018-07-01
2018-09-30
0001055160
us-gaap:AccumulatedGainLossNetCashFlowHedgeParentMember
2018-01-01
2018-09-30
0001055160
us-gaap:AccumulatedGainLossNetCashFlowHedgeParentMember
2018-07-01
2018-09-30
0001055160
us-gaap:AccumulatedNetUnrealizedInvestmentGainLossMember
2018-09-30
0001055160
us-gaap:AccumulatedGainLossNetCashFlowHedgeParentMember
2017-12-31
0001055160
us-gaap:AccumulatedNetUnrealizedInvestmentGainLossMember
2018-06-30
0001055160
us-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncomeMember
us-gaap:AccumulatedNetInvestmentGainLossIncludingPortionAttributableToNoncontrollingInterestMember
2018-01-01
2018-09-30
0001055160
us-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncomeMember
us-gaap:AccumulatedNetInvestmentGainLossIncludingPortionAttributableToNoncontrollingInterestMember
2018-07-01
2018-09-30
0001055160
us-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncomeMember
us-gaap:AccumulatedNetInvestmentGainLossIncludingPortionAttributableToNoncontrollingInterestMember
2019-01-01
2019-09-30
0001055160
us-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncomeMember
us-gaap:AccumulatedNetInvestmentGainLossIncludingPortionAttributableToNoncontrollingInterestMember
2019-07-01
2019-09-30
0001055160
mfa:PublicOfferingMember
2018-08-07
0001055160
mfa:PublicOfferingMember
2018-08-07
2018-08-07
0001055160
us-gaap:SeriesBPreferredStockMember
2019-05-20
2019-05-20
0001055160
us-gaap:SeriesBPreferredStockMember
2019-02-15
2019-02-15
0001055160
us-gaap:SeriesBPreferredStockMember
2019-08-09
2019-08-09
0001055160
us-gaap:RestrictedStockUnitsRSUMember
2019-09-30
0001055160
us-gaap:DeferredCompensationShareBasedPaymentsMember
2019-09-30
0001055160
srt:DirectorMember
us-gaap:DeferredCompensationShareBasedPaymentsMember
2018-12-31
0001055160
srt:DirectorMember
us-gaap:DeferredCompensationShareBasedPaymentsMember
2019-09-30
0001055160
us-gaap:DeferredCompensationShareBasedPaymentsMember
2018-12-31
0001055160
us-gaap:RestrictedStockUnitsRSUMember
2019-09-30
0001055160
mfa:SavingsPlanMember
2018-01-01
2018-09-30
0001055160
mfa:SavingsPlanMember
2019-01-01
2019-09-30
0001055160
mfa:EquityCompensationPlan2010Member
2019-01-01
2019-09-30
0001055160
us-gaap:RestrictedStockMember
2019-01-01
2019-09-30
0001055160
mfa:DividendEquivalentRightsMember
2019-01-01
2019-09-30
0001055160
us-gaap:RestrictedStockUnitsRSUMember
2019-01-01
2019-09-30
0001055160
us-gaap:RestrictedStockUnitsRSUMember
2018-12-31
0001055160
mfa:SavingsPlanMember
2018-07-01
2018-09-30
0001055160
us-gaap:RestrictedStockUnitsRSUMember
2018-01-01
2018-09-30
0001055160
mfa:SavingsPlanMember
2019-07-01
2019-09-30
0001055160
us-gaap:DeferredCompensationShareBasedPaymentsMember
2019-01-01
2019-09-30
0001055160
us-gaap:RestrictedStockUnitsRSUMember
2018-07-01
2018-09-30
0001055160
us-gaap:RestrictedStockMember
2019-09-30
0001055160
us-gaap:DeferredCompensationShareBasedPaymentsMember
2018-07-01
2018-09-30
0001055160
srt:DirectorMember
us-gaap:DeferredCompensationShareBasedPaymentsMember
2019-01-01
2019-09-30
0001055160
srt:DirectorMember
us-gaap:DeferredCompensationShareBasedPaymentsMember
2018-07-01
2018-09-30
0001055160
srt:DirectorMember
us-gaap:DeferredCompensationShareBasedPaymentsMember
2019-07-01
2019-09-30
0001055160
srt:DirectorMember
us-gaap:DeferredCompensationShareBasedPaymentsMember
2018-01-01
2018-09-30
0001055160
us-gaap:DeferredCompensationShareBasedPaymentsMember
2019-07-01
2019-09-30
0001055160
us-gaap:DeferredCompensationShareBasedPaymentsMember
2018-01-01
2018-09-30
0001055160
us-gaap:RestrictedStockUnitsRSUMember
2019-07-01
2019-09-30
0001055160
us-gaap:RestrictedStockMember
2018-01-01
2018-09-30
0001055160
mfa:DividendEquivalentRightsMember
2018-01-01
2018-09-30
0001055160
us-gaap:EstimateOfFairValueFairValueDisclosureMember
2018-12-31
0001055160
us-gaap:EstimateOfFairValueFairValueDisclosureMember
us-gaap:LoansReceivableMember
2018-12-31
0001055160
us-gaap:CarryingReportedAmountFairValueDisclosureMember
us-gaap:MortgageBackedSecuritiesIssuedByPrivateEnterprisesMember
2018-12-31
0001055160
us-gaap:EstimateOfFairValueFairValueDisclosureMember
us-gaap:LoansReceivableMember
2019-09-30
0001055160
us-gaap:CarryingReportedAmountFairValueDisclosureMember
2018-12-31
0001055160
us-gaap:EstimateOfFairValueFairValueDisclosureMember
us-gaap:MortgageBackedSecuritiesIssuedByPrivateEnterprisesMember
2019-09-30
0001055160
us-gaap:CarryingReportedAmountFairValueDisclosureMember
us-gaap:LoansReceivableMember
2019-09-30
0001055160
us-gaap:CarryingReportedAmountFairValueDisclosureMember
us-gaap:LoansReceivableMember
2018-12-31
0001055160
us-gaap:EstimateOfFairValueFairValueDisclosureMember
us-gaap:MortgageBackedSecuritiesIssuedByPrivateEnterprisesMember
2018-12-31
0001055160
us-gaap:CarryingReportedAmountFairValueDisclosureMember
us-gaap:MortgageBackedSecuritiesIssuedByPrivateEnterprisesMember
2019-09-30
0001055160
us-gaap:FairValueInputsLevel1Member
mfa:TermNotesbackedbyMSRRelatedCollateralMember
2018-12-31
0001055160
us-gaap:FairValueInputsLevel2Member
2018-12-31
0001055160
us-gaap:FairValueInputsLevel3Member
mfa:TermNotesbackedbyMSRRelatedCollateralMember
2018-12-31
0001055160
us-gaap:FairValueInputsLevel1Member
us-gaap:LoansReceivableMember
2018-12-31
0001055160
us-gaap:FairValueInputsLevel2Member
mfa:TermNotesbackedbyMSRRelatedCollateralMember
2018-12-31
0001055160
us-gaap:FairValueInputsLevel1Member
us-gaap:MortgageBackedSecuritiesIssuedByPrivateEnterprisesMember
2018-12-31
0001055160
us-gaap:FairValueInputsLevel3Member
us-gaap:LoansReceivableMember
2018-12-31
0001055160
us-gaap:FairValueInputsLevel1Member
2018-12-31
0001055160
us-gaap:FairValueInputsLevel2Member
us-gaap:LoansReceivableMember
2018-12-31
0001055160
us-gaap:FairValueInputsLevel3Member
2018-12-31
0001055160
us-gaap:FairValueInputsLevel2Member
us-gaap:MortgageBackedSecuritiesIssuedByPrivateEnterprisesMember
2018-12-31
0001055160
us-gaap:FairValueInputsLevel3Member
us-gaap:MortgageBackedSecuritiesIssuedByPrivateEnterprisesMember
2018-12-31
0001055160
srt:WeightedAverageMember
us-gaap:LoansReceivableMember
us-gaap:FairValueInputsLevel3Member
us-gaap:MeasurementInputDiscountRateMember
us-gaap:IncomeApproachValuationTechniqueMember
2018-12-31
0001055160
srt:WeightedAverageMember
us-gaap:LoansReceivableMember
us-gaap:FairValueInputsLevel3Member
us-gaap:MeasurementInputDefaultRateMember
mfa:LiquidationModelMember
2018-01-01
2018-12-31
0001055160
mfa:LiquidationModelMember
2018-12-31
0001055160
srt:WeightedAverageMember
us-gaap:LoansReceivableMember
us-gaap:FairValueInputsLevel3Member
us-gaap:MeasurementInputLossSeverityMember
mfa:LiquidationModelMember
2018-01-01
2018-12-31
0001055160
us-gaap:IncomeApproachValuationTechniqueMember
2018-12-31
0001055160
srt:WeightedAverageMember
us-gaap:LoansReceivableMember
us-gaap:FairValueInputsLevel3Member
us-gaap:MeasurementInputLossSeverityMember
us-gaap:IncomeApproachValuationTechniqueMember
2018-12-31
0001055160
srt:WeightedAverageMember
us-gaap:LoansReceivableMember
us-gaap:FairValueInputsLevel3Member
us-gaap:MeasurementInputPrepaymentRateMember
us-gaap:IncomeApproachValuationTechniqueMember
2018-12-31
0001055160
srt:WeightedAverageMember
us-gaap:LoansReceivableMember
us-gaap:FairValueInputsLevel3Member
us-gaap:MeasurementInputDefaultRateMember
us-gaap:IncomeApproachValuationTechniqueMember
2018-12-31
0001055160
srt:WeightedAverageMember
us-gaap:LoansReceivableMember
us-gaap:FairValueInputsLevel3Member
us-gaap:MeasurementInputDiscountRateMember
mfa:LiquidationModelMember
2018-12-31
0001055160
srt:WeightedAverageMember
us-gaap:LoansReceivableMember
us-gaap:FairValueInputsLevel3Member
us-gaap:MeasurementInputPrepaymentRateMember
mfa:LiquidationModelMember
2018-01-01
2018-12-31
0001055160
us-gaap:LoansReceivableMember
us-gaap:FairValueInputsLevel3Member
us-gaap:FairValueMeasurementsRecurringMember
2019-09-30
0001055160
us-gaap:LoansReceivableMember
us-gaap:FairValueInputsLevel3Member
us-gaap:FairValueMeasurementsRecurringMember
2018-09-30
0001055160
us-gaap:LoansReceivableMember
us-gaap:FairValueInputsLevel3Member
us-gaap:FairValueMeasurementsRecurringMember
2018-07-01
2018-09-30
0001055160
us-gaap:LoansReceivableMember
us-gaap:FairValueInputsLevel3Member
us-gaap:FairValueMeasurementsRecurringMember
2019-07-01
2019-09-30
0001055160
us-gaap:LoansReceivableMember
us-gaap:FairValueInputsLevel3Member
us-gaap:FairValueMeasurementsRecurringMember
2019-01-01
2019-09-30
0001055160
us-gaap:LoansReceivableMember
us-gaap:FairValueInputsLevel3Member
us-gaap:FairValueMeasurementsRecurringMember
2018-01-01
2018-09-30
0001055160
us-gaap:LoansReceivableMember
us-gaap:FairValueInputsLevel3Member
us-gaap:FairValueMeasurementsRecurringMember
2017-12-31
0001055160
us-gaap:LoansReceivableMember
us-gaap:FairValueInputsLevel3Member
us-gaap:FairValueMeasurementsRecurringMember
2019-06-30
0001055160
us-gaap:LoansReceivableMember
us-gaap:FairValueInputsLevel3Member
us-gaap:FairValueMeasurementsRecurringMember
2018-12-31
0001055160
us-gaap:LoansReceivableMember
us-gaap:FairValueInputsLevel3Member
us-gaap:FairValueMeasurementsRecurringMember
2018-06-30
0001055160
srt:WeightedAverageMember
us-gaap:LoansReceivableMember
us-gaap:FairValueInputsLevel3Member
us-gaap:MeasurementInputPrepaymentRateMember
us-gaap:IncomeApproachValuationTechniqueMember
2019-09-30
0001055160
srt:WeightedAverageMember
us-gaap:LoansReceivableMember
us-gaap:FairValueInputsLevel3Member
us-gaap:MeasurementInputDiscountRateMember
mfa:LiquidationModelMember
2019-09-30
0001055160
srt:WeightedAverageMember
us-gaap:LoansReceivableMember
us-gaap:FairValueInputsLevel3Member
us-gaap:MeasurementInputDefaultRateMember
us-gaap:IncomeApproachValuationTechniqueMember
2019-09-30
0001055160
srt:WeightedAverageMember
us-gaap:LoansReceivableMember
us-gaap:FairValueInputsLevel3Member
us-gaap:MeasurementInputLossSeverityMember
us-gaap:IncomeApproachValuationTechniqueMember
2019-09-30
0001055160
srt:WeightedAverageMember
us-gaap:LoansReceivableMember
us-gaap:FairValueInputsLevel3Member
us-gaap:MeasurementInputDefaultRateMember
mfa:LiquidationModelMember
2019-01-01
2019-09-30
0001055160
srt:WeightedAverageMember
us-gaap:LoansReceivableMember
us-gaap:FairValueInputsLevel3Member
us-gaap:MeasurementInputLossSeverityMember
mfa:LiquidationModelMember
2019-01-01
2019-09-30
0001055160
srt:WeightedAverageMember
us-gaap:LoansReceivableMember
us-gaap:FairValueInputsLevel3Member
us-gaap:MeasurementInputDiscountRateMember
us-gaap:IncomeApproachValuationTechniqueMember
2019-09-30
0001055160
srt:WeightedAverageMember
us-gaap:LoansReceivableMember
us-gaap:FairValueInputsLevel3Member
us-gaap:MeasurementInputPrepaymentRateMember
mfa:LiquidationModelMember
2019-01-01
2019-09-30
0001055160
mfa:LiquidationModelMember
2019-09-30
0001055160
us-gaap:IncomeApproachValuationTechniqueMember
2019-09-30
0001055160
us-gaap:FairValueInputsLevel2Member
us-gaap:MortgageBackedSecuritiesIssuedByPrivateEnterprisesMember
2019-09-30
0001055160
us-gaap:FairValueInputsLevel3Member
us-gaap:LoansReceivableMember
2019-09-30
0001055160
us-gaap:FairValueInputsLevel3Member
us-gaap:MortgageBackedSecuritiesIssuedByPrivateEnterprisesMember
2019-09-30
0001055160
us-gaap:FairValueInputsLevel2Member
mfa:TermNotesbackedbyMSRRelatedCollateralMember
2019-09-30
0001055160
us-gaap:FairValueInputsLevel1Member
mfa:TermNotesbackedbyMSRRelatedCollateralMember
2019-09-30
0001055160
us-gaap:FairValueInputsLevel2Member
us-gaap:LoansReceivableMember
2019-09-30
0001055160
us-gaap:FairValueInputsLevel1Member
us-gaap:LoansReceivableMember
2019-09-30
0001055160
us-gaap:FairValueInputsLevel2Member
2019-09-30
0001055160
us-gaap:FairValueInputsLevel1Member
2019-09-30
0001055160
us-gaap:FairValueInputsLevel1Member
us-gaap:MortgageBackedSecuritiesIssuedByPrivateEnterprisesMember
2019-09-30
0001055160
us-gaap:FairValueInputsLevel3Member
mfa:TermNotesbackedbyMSRRelatedCollateralMember
2019-09-30
0001055160
us-gaap:FairValueInputsLevel3Member
2019-09-30
0001055160
us-gaap:OtherInvestmentsMember
us-gaap:FairValueInputsLevel3Member
us-gaap:FairValueMeasurementsRecurringMember
2018-12-31
0001055160
us-gaap:OtherInvestmentsMember
us-gaap:FairValueInputsLevel3Member
us-gaap:FairValueMeasurementsRecurringMember
2018-01-01
2018-09-30
0001055160
us-gaap:OtherInvestmentsMember
us-gaap:FairValueInputsLevel3Member
us-gaap:FairValueMeasurementsRecurringMember
2017-12-31
0001055160
us-gaap:OtherInvestmentsMember
us-gaap:FairValueInputsLevel3Member
us-gaap:FairValueMeasurementsRecurringMember
2019-06-30
0001055160
us-gaap:OtherInvestmentsMember
us-gaap:FairValueInputsLevel3Member
us-gaap:FairValueMeasurementsRecurringMember
2018-07-01
2018-09-30
0001055160
us-gaap:OtherInvestmentsMember
us-gaap:FairValueInputsLevel3Member
us-gaap:FairValueMeasurementsRecurringMember
2019-01-01
2019-09-30
0001055160
us-gaap:OtherInvestmentsMember
us-gaap:FairValueInputsLevel3Member
us-gaap:FairValueMeasurementsRecurringMember
2018-09-30
0001055160
us-gaap:OtherInvestmentsMember
us-gaap:FairValueInputsLevel3Member
us-gaap:FairValueMeasurementsRecurringMember
2019-07-01
2019-09-30
0001055160
us-gaap:OtherInvestmentsMember
us-gaap:FairValueInputsLevel3Member
us-gaap:FairValueMeasurementsRecurringMember
2018-06-30
0001055160
us-gaap:OtherInvestmentsMember
us-gaap:FairValueInputsLevel3Member
us-gaap:FairValueMeasurementsRecurringMember
2019-09-30
0001055160
srt:MinimumMember
us-gaap:LoansReceivableMember
us-gaap:FairValueInputsLevel3Member
mfa:LiquidationModelMember
2018-01-01
2018-12-31
0001055160
srt:MinimumMember
us-gaap:LoansReceivableMember
us-gaap:FairValueInputsLevel3Member
us-gaap:MeasurementInputDefaultRateMember
us-gaap:IncomeApproachValuationTechniqueMember
2018-12-31
0001055160
srt:MinimumMember
us-gaap:LoansReceivableMember
us-gaap:FairValueInputsLevel3Member
us-gaap:MeasurementInputLossSeverityMember
us-gaap:IncomeApproachValuationTechniqueMember
2019-09-30
0001055160
srt:MinimumMember
us-gaap:LoansReceivableMember
us-gaap:FairValueInputsLevel3Member
mfa:LiquidationModelMember
2019-01-01
2019-09-30
0001055160
srt:MinimumMember
us-gaap:LoansReceivableMember
us-gaap:FairValueInputsLevel3Member
us-gaap:MeasurementInputDefaultRateMember
us-gaap:IncomeApproachValuationTechniqueMember
2019-09-30
0001055160
srt:MaximumMember
us-gaap:LoansReceivableMember
us-gaap:FairValueInputsLevel3Member
mfa:LiquidationModelMember
2018-01-01
2018-12-31
0001055160
srt:MaximumMember
us-gaap:LoansReceivableMember
us-gaap:FairValueInputsLevel3Member
us-gaap:MeasurementInputPrepaymentRateMember
us-gaap:IncomeApproachValuationTechniqueMember
2018-12-31
0001055160
srt:MaximumMember
us-gaap:LoansReceivableMember
us-gaap:FairValueInputsLevel3Member
us-gaap:MeasurementInputDiscountRateMember
us-gaap:IncomeApproachValuationTechniqueMember
2019-09-30
0001055160
srt:MinimumMember
us-gaap:LoansReceivableMember
us-gaap:FairValueInputsLevel3Member
us-gaap:MeasurementInputDiscountRateMember
us-gaap:IncomeApproachValuationTechniqueMember
2018-12-31
0001055160
srt:MinimumMember
us-gaap:LoansReceivableMember
us-gaap:FairValueInputsLevel3Member
us-gaap:MeasurementInputPrepaymentRateMember
us-gaap:IncomeApproachValuationTechniqueMember
2018-12-31
0001055160
srt:MaximumMember
us-gaap:LoansReceivableMember
us-gaap:FairValueInputsLevel3Member
us-gaap:MeasurementInputDiscountRateMember
mfa:LiquidationModelMember
2019-09-30
0001055160
srt:MaximumMember
us-gaap:LoansReceivableMember
us-gaap:FairValueInputsLevel3Member
us-gaap:MeasurementInputLossSeverityMember
us-gaap:IncomeApproachValuationTechniqueMember
2019-09-30
0001055160
srt:MinimumMember
us-gaap:LoansReceivableMember
us-gaap:FairValueInputsLevel3Member
us-gaap:MeasurementInputLossSeverityMember
us-gaap:IncomeApproachValuationTechniqueMember
2018-12-31
0001055160
srt:MaximumMember
us-gaap:LoansReceivableMember
us-gaap:FairValueInputsLevel3Member
us-gaap:MeasurementInputDiscountRateMember
mfa:LiquidationModelMember
2018-12-31
0001055160
srt:MinimumMember
us-gaap:LoansReceivableMember
us-gaap:FairValueInputsLevel3Member
us-gaap:MeasurementInputPrepaymentRateMember
us-gaap:IncomeApproachValuationTechniqueMember
2019-09-30
0001055160
srt:MaximumMember
us-gaap:LoansReceivableMember
us-gaap:FairValueInputsLevel3Member
us-gaap:MeasurementInputDefaultRateMember
us-gaap:IncomeApproachValuationTechniqueMember
2018-12-31
0001055160
srt:MaximumMember
us-gaap:LoansReceivableMember
us-gaap:FairValueInputsLevel3Member
mfa:LiquidationModelMember
2019-01-01
2019-09-30
0001055160
srt:MaximumMember
us-gaap:LoansReceivableMember
us-gaap:FairValueInputsLevel3Member
us-gaap:MeasurementInputDefaultRateMember
us-gaap:IncomeApproachValuationTechniqueMember
2019-09-30
0001055160
srt:MaximumMember
us-gaap:LoansReceivableMember
us-gaap:FairValueInputsLevel3Member
us-gaap:MeasurementInputDiscountRateMember
us-gaap:IncomeApproachValuationTechniqueMember
2018-12-31
0001055160
srt:MinimumMember
us-gaap:LoansReceivableMember
us-gaap:FairValueInputsLevel3Member
us-gaap:MeasurementInputDiscountRateMember
us-gaap:IncomeApproachValuationTechniqueMember
2019-09-30
0001055160
srt:MinimumMember
us-gaap:LoansReceivableMember
us-gaap:FairValueInputsLevel3Member
us-gaap:MeasurementInputDiscountRateMember
mfa:LiquidationModelMember
2019-09-30
0001055160
srt:MaximumMember
us-gaap:LoansReceivableMember
us-gaap:FairValueInputsLevel3Member
us-gaap:MeasurementInputPrepaymentRateMember
us-gaap:IncomeApproachValuationTechniqueMember
2019-09-30
0001055160
srt:MinimumMember
us-gaap:LoansReceivableMember
us-gaap:FairValueInputsLevel3Member
us-gaap:MeasurementInputDiscountRateMember
mfa:LiquidationModelMember
2018-12-31
0001055160
srt:MaximumMember
us-gaap:LoansReceivableMember
us-gaap:FairValueInputsLevel3Member
us-gaap:MeasurementInputLossSeverityMember
us-gaap:IncomeApproachValuationTechniqueMember
2018-12-31
0001055160
mfa:RatedandNonRatedCertificatesMember
us-gaap:AssetBackedSecuritiesSecuritizedLoansAndReceivablesMember
2018-12-31
0001055160
us-gaap:AssetBackedSecuritiesSecuritizedLoansAndReceivablesMember
2019-01-01
2019-09-30
0001055160
us-gaap:AssetBackedSecuritiesSecuritizedLoansAndReceivablesMember
2018-12-31
0001055160
us-gaap:AssetBackedSecuritiesSecuritizedLoansAndReceivablesMember
2019-09-30
0001055160
us-gaap:AssetBackedSecuritiesSecuritizedLoansAndReceivablesMember
2018-01-01
2018-09-30
0001055160
us-gaap:SeniorNotesMember
us-gaap:AssetBackedSecuritiesSecuritizedLoansAndReceivablesMember
2019-09-30
0001055160
us-gaap:SeniorNotesMember
us-gaap:AssetBackedSecuritiesSecuritizedLoansAndReceivablesMember
2018-12-31
0001055160
mfa:RatedandNonRatedCertificatesMember
us-gaap:AssetBackedSecuritiesSecuritizedLoansAndReceivablesMember
2019-09-30
0001055160
us-gaap:OtherAssetsMember
us-gaap:AssetBackedSecuritiesSecuritizedLoansAndReceivablesMember
2018-12-31
0001055160
us-gaap:SeniorNotesMember
us-gaap:AssetBackedSecuritiesSecuritizedLoansAndReceivablesMember
2019-01-01
2019-09-30
0001055160
us-gaap:OtherAssetsMember
us-gaap:AssetBackedSecuritiesSecuritizedLoansAndReceivablesMember
2019-09-30
0001055160
us-gaap:SeniorNotesMember
us-gaap:AssetBackedSecuritiesSecuritizedLoansAndReceivablesMember
2018-01-01
2018-12-31
iso4217:USD
xbrli:pure
mfa:security
iso4217:USD
xbrli:shares
mfa:segment
xbrli:shares
mfa:loan
mfa:property
mfa:counterparty
mfa:director
mfa:quarter
mfa:officer
mfa:lease
UNITED STATES
SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549
___________________________________________________________________________
FORM 10-Q
(Mark One)
☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934
For the quarterly period ended September 30, 2019
or
☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934
For the transition period from to
Commission File Number: 1-13991
MFA FINANCIAL, INC.
(Exact name of registrant as specified in its charter)
__________________________________________________________________
|
|
|
|
|
|
|
|
|
|
Maryland |
|
|
|
13-3974868 |
|
|
(State or other jurisdiction of incorporation or organization) |
|
|
|
(I.R.S. Employer Identification No.) |
|
|
|
|
|
|
|
|
|
|
350 Park Avenue, 20th Floor |
|
|
|
|
|
|
New York |
New York |
|
|
|
10022 |
|
|
(Address of principal executive offices) |
|
|
|
(Zip Code) |
|
(212) 207-6400
(Registrant’s telephone number, including area code)
_____________________________________________
Not Applicable
(Former name, former address and former fiscal year, if changed since last period)
____________________________________________________________________
Securities registered pursuant to Section 12(b) of the Act:
|
|
|
|
Title of Each Class |
Trading Symbol(s) |
Name of Each Exchange on Which Registered |
Common Stock, par value $0.01 per share |
MFA |
New York Stock Exchange |
7.50% Series B Cumulative Redeemable Preferred Stock, par value $0.01 per share |
MFA/PB |
New York Stock Exchange |
8.00% Senior Notes due 2042 |
MFO |
New York Stock Exchange |
Indicate by check mark whether the registrant (1) has filed all reports required to be filed by Section 13 or 15(d) of the Securities Exchange Act of 1934 during the preceding 12 months (or for such shorter period that the registrant was required to file such reports), and (2) has been subject to such filing requirements for the past 90 days. Yes x No o
Indicate by check mark whether the registrant has submitted electronically every Interactive Data File required to be submitted pursuant to Rule 405 of Regulation S-T during the preceding 12 months (or for such shorter period that the registrant was required to submit such files). Yes x No o
Indicate by check mark whether the registrant is a large accelerated filer, an accelerated filer, a non-accelerated filer, a smaller reporting company, or an emerging growth company. See the definitions of “large accelerated filer,” “accelerated filer,” “smaller reporting company,” and “emerging growth company” in Rule 12b-2 of the Exchange Act.
|
|
|
|
|
|
Large accelerated filer |
x |
|
Accelerated filer |
☐ |
Non-accelerated filer |
☐ |
|
Smaller reporting company |
☐ |
|
|
|
Emerging growth company |
☐ |
If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act. o
Indicate by check mark whether the registrant is a shell company (as defined in Rule 12b-2 of the Exchange Act). Yes ☐ No x
451,770,207 shares of the registrant’s common stock, $0.01 par value, were outstanding as of October 31, 2019.
MFA FINANCIAL, INC.
TABLE OF CONTENTS
|
|
|
|
|
Page |
|
|
PART I |
FINANCIAL INFORMATION |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
MFA FINANCIAL, INC.
CONSOLIDATED BALANCE SHEETS
|
|
|
|
|
|
|
|
|
|
(In Thousands Except Per Share Amounts) |
|
September 30, 2019 |
|
December 31, 2018 |
|
|
(Unaudited) |
|
|
Assets: |
|
|
|
|
|
|
Residential mortgage securities: |
|
|
|
|
|
|
Agency MBS, at fair value ($1,809,380 and $2,575,331 pledged as collateral, respectively) |
|
$ |
1,813,873 |
|
|
$ |
2,698,213 |
|
Non-Agency MBS, at fair value ($2,389,549 and $3,248,900 pledged as collateral, respectively) |
|
2,397,789 |
|
|
3,318,299 |
|
Credit Risk Transfer (“CRT”) securities, at fair value ($377,779 and $480,315 pledged as collateral, respectively) |
|
377,892 |
|
|
492,821 |
|
Residential whole loans, at carrying value ($3,657,830 and $1,645,372 pledged as collateral, respectively) (1)
|
|
4,969,414 |
|
|
3,016,715 |
|
Residential whole loans, at fair value ($835,762 and $738,638 pledged as collateral, respectively) (1)
|
|
1,453,169 |
|
|
1,665,978 |
|
Mortgage servicing rights (“MSR”) related assets ($1,164,284 and $611,807 pledged as collateral, respectively) |
|
1,164,284 |
|
|
611,807 |
|
Cash and cash equivalents |
|
154,193 |
|
|
51,965 |
|
Restricted cash |
|
38,998 |
|
|
36,744 |
|
Other assets |
|
735,209 |
|
|
527,785 |
|
Total Assets |
|
$ |
13,104,821 |
|
|
$ |
12,420,327 |
|
|
|
|
|
|
Liabilities: |
|
|
|
|
Repurchase agreements |
|
$ |
8,571,422 |
|
|
$ |
7,879,087 |
|
Other liabilities |
|
1,129,973 |
|
|
1,125,139 |
|
Total Liabilities |
|
$ |
9,701,395 |
|
|
$ |
9,004,226 |
|
|
|
|
|
|
Commitments and contingencies (See Note 10) |
|
|
|
|
|
|
|
|
|
|
|
Stockholders’ Equity: |
|
|
|
|
Preferred stock, $.01 par value; 7.50% Series B cumulative redeemable; 8,050 shares authorized; 8,000 shares issued and outstanding ($200,000 aggregate liquidation preference) |
|
$ |
80 |
|
|
$ |
80 |
|
Common stock, $.01 par value; 886,950 shares authorized; 451,692 and 449,787 shares issued and outstanding, respectively |
|
4,517 |
|
|
4,498 |
|
Additional paid-in capital, in excess of par |
|
3,634,140 |
|
|
3,623,275 |
|
Accumulated deficit |
|
(637,161 |
) |
|
(632,040 |
) |
Accumulated other comprehensive income |
|
401,850 |
|
|
420,288 |
|
Total Stockholders’ Equity |
|
$ |
3,403,426 |
|
|
$ |
3,416,101 |
|
Total Liabilities and Stockholders’ Equity |
|
$ |
13,104,821 |
|
|
$ |
12,420,327 |
|
The accompanying notes are an integral part of the consolidated financial statements.
MFA FINANCIAL, INC.
CONSOLIDATED STATEMENTS OF OPERATIONS
(UNAUDITED)
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Three Months Ended September 30, |
|
Nine Months Ended September 30, |
(In Thousands, Except Per Share Amounts) |
|
2019 |
|
2018 |
|
2019 |
|
2018 |
Interest Income: |
|
|
|
|
|
|
|
|
Agency MBS |
|
$ |
11,806 |
|
|
$ |
14,332 |
|
|
$ |
45,521 |
|
|
$ |
42,795 |
|
Non-Agency MBS |
|
44,582 |
|
|
58,667 |
|
|
150,610 |
|
|
169,812 |
|
CRT securities |
|
4,251 |
|
|
7,748 |
|
|
15,545 |
|
|
25,939 |
|
Residential whole loans held at carrying value |
|
64,226 |
|
|
29,524 |
|
|
171,725 |
|
|
61,788 |
|
MSR-related assets |
|
15,274 |
|
|
6,407 |
|
|
38,232 |
|
|
20,249 |
|
Cash and cash equivalent investments |
|
903 |
|
|
754 |
|
|
2,703 |
|
|
2,348 |
|
Other interest-earning assets |
|
1,679 |
|
|
— |
|
|
4,272 |
|
|
— |
|
Interest Income |
|
$ |
142,721 |
|
|
$ |
117,432 |
|
|
$ |
428,608 |
|
|
$ |
322,931 |
|
|
|
|
|
|
|
|
|
|
Interest Expense: |
|
|
|
|
|
|
|
|
|
|
Repurchase agreements |
|
$ |
74,240 |
|
|
$ |
50,881 |
|
|
$ |
220,939 |
|
|
$ |
142,832 |
|
Other interest expense |
|
11,583 |
|
|
7,997 |
|
|
28,954 |
|
|
18,410 |
|
Interest Expense |
|
$ |
85,823 |
|
|
$ |
58,878 |
|
|
$ |
249,893 |
|
|
$ |
161,242 |
|
|
|
|
|
|
|
|
|
|
Net Interest Income |
|
$ |
56,898 |
|
|
$ |
58,554 |
|
|
$ |
178,715 |
|
|
$ |
161,689 |
|
|
|
|
|
|
|
|
|
|
Other Income, net: |
|
|
|
|
|
|
|
|
Net gain on residential whole loans measured at fair value through earnings |
|
$ |
40,175 |
|
|
$ |
34,942 |
|
|
$ |
116,915 |
|
|
$ |
105,883 |
|
Net realized gain on sales of residential mortgage securities |
|
17,708 |
|
|
16,415 |
|
|
50,027 |
|
|
32,661 |
|
Net unrealized (loss)/gain on residential mortgage securities measured at fair value through earnings |
|
(571 |
) |
|
(8,545 |
) |
|
8,101 |
|
|
(11,776 |
) |
Net (loss)/gain on Swaps not designated as hedges for accounting purposes |
|
(929 |
) |
|
4,002 |
|
|
(17,267 |
) |
|
4,355 |
|
Other, net |
|
6,046 |
|
|
1,545 |
|
|
12,684 |
|
|
5,902 |
|
Other Income, net |
|
$ |
62,429 |
|
|
$ |
48,359 |
|
|
$ |
170,460 |
|
|
$ |
137,025 |
|
|
|
|
|
|
|
|
|
|
Operating and Other Expense: |
|
|
|
|
|
|
|
|
Compensation and benefits |
|
$ |
7,920 |
|
|
$ |
6,868 |
|
|
$ |
24,315 |
|
|
$ |
20,654 |
|
Other general and administrative expense |
|
5,022 |
|
|
4,155 |
|
|
15,601 |
|
|
13,569 |
|
Loan servicing and other related operating expenses |
|
10,786 |
|
|
8,758 |
|
|
31,763 |
|
|
23,569 |
|
Operating and Other Expense |
|
$ |
23,728 |
|
|
$ |
19,781 |
|
|
$ |
71,679 |
|
|
$ |
57,792 |
|
|
|
|
|
|
|
|
|
|
Net Income |
|
$ |
95,599 |
|
|
$ |
87,132 |
|
|
$ |
277,496 |
|
|
$ |
240,922 |
|
Less Preferred Stock Dividends |
|
3,750 |
|
|
3,750 |
|
|
11,250 |
|
|
11,250 |
|
Net Income Available to Common Stock and Participating Securities |
|
$ |
91,849 |
|
|
$ |
83,382 |
|
|
$ |
266,246 |
|
|
$ |
229,672 |
|
|
|
|
|
|
|
|
|
|
Basic Earnings per Common Share |
|
$ |
0.20 |
|
|
$ |
0.19 |
|
|
$ |
0.59 |
|
|
$ |
0.56 |
|
Diluted Earnings per Common Share |
|
$ |
0.20 |
|
|
$ |
0.19 |
|
|
$ |
0.58 |
|
|
$ |
0.56 |
|
The accompanying notes are an integral part of the consolidated financial statements.
MFA FINANCIAL, INC.
CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME/(LOSS)
(UNAUDITED)
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Three Months Ended September 30, |
|
Nine Months Ended September 30, |
(In Thousands) |
|
2019 |
|
2018 |
|
2019 |
|
2018 |
Net income |
|
$ |
95,599 |
|
|
$ |
87,132 |
|
|
$ |
277,496 |
|
|
$ |
240,922 |
|
Other Comprehensive Income/(Loss): |
|
|
|
|
|
|
|
|
Unrealized gain/(loss) on Agency MBS, net |
|
603 |
|
|
(9,177 |
) |
|
22,483 |
|
|
(27,507 |
) |
Unrealized gain/(loss) on Non-Agency MBS, CRT securities and MSR term notes, net |
|
4,880 |
|
|
(25,101 |
) |
|
27,602 |
|
|
(62,743 |
) |
Reclassification adjustment for MBS sales included in net income |
|
(14,499 |
) |
|
(9,455 |
) |
|
(36,370 |
) |
|
(25,580 |
) |
Derivative hedging instrument fair value changes, net |
|
(233 |
) |
|
5,390 |
|
|
(30,384 |
) |
|
32,974 |
|
Amortization of de-designated hedging instruments, net |
|
(685 |
) |
|
— |
|
|
(1,769 |
) |
|
— |
|
Other Comprehensive Income/(Loss) |
|
(9,934 |
) |
|
(38,343 |
) |
|
(18,438 |
) |
|
(82,856 |
) |
Comprehensive income before preferred stock dividends |
|
$ |
85,665 |
|
|
$ |
48,789 |
|
|
$ |
259,058 |
|
|
$ |
158,066 |
|
Dividends declared on preferred stock |
|
(3,750 |
) |
|
(3,750 |
) |
|
(11,250 |
) |
|
(11,250 |
) |
Comprehensive Income Available to Common Stock and Participating Securities |
|
$ |
81,915 |
|
|
$ |
45,039 |
|
|
$ |
247,808 |
|
|
$ |
146,816 |
|
The accompanying notes are an integral part of the consolidated financial statements.
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
MFA FINANCIAL, INC.
CONSOLIDATED STATEMENTS OF CHANGES IN STOCKHOLDERS’ EQUITY
(UNAUDITED)
|
|
|
Nine Months Ended September 30, 2019 |
(In Thousands, Except Per Share Amounts) |
|
Preferred Stock 7.50% Series B Cumulative Redeemable - Liquidation Preference $25.00 per Share |
|
Common Stock |
|
Additional Paid-in Capital |
|
Accumulated Deficit |
|
Accumulated Other Comprehensive Income |
|
Total |
|
Shares |
|
Amount |
|
Shares |
|
Amount |
|
|
|
|
Balance at December 31, 2018 |
|
8,000 |
|
|
$ |
80 |
|
|
449,787 |
|
|
$ |
4,498 |
|
|
$ |
3,623,275 |
|
|
$ |
(632,040 |
) |
|
$ |
420,288 |
|
|
$ |
3,416,101 |
|
Net income |
|
— |
|
|
— |
|
|
— |
|
|
— |
|
|
— |
|
|
88,857 |
|
|
— |
|
|
88,857 |
|
Issuance of common stock, net of expenses |
|
— |
|
|
— |
|
|
1,066 |
|
|
7 |
|
|
544 |
|
|
— |
|
|
— |
|
|
551 |
|
Repurchase of shares of common stock (1)
|
|
— |
|
|
— |
|
|
(370 |
) |
|
— |
|
|
(2,610 |
) |
|
— |
|
|
— |
|
|
(2,610 |
) |
Equity based compensation expense |
|
— |
|
|
— |
|
|
— |
|
|
— |
|
|
992 |
|
|
— |
|
|
— |
|
|
992 |
|
Accrued dividends attributable to stock-based awards |
|
— |
|
|
— |
|
|
— |
|
|
— |
|
|
435 |
|
|
— |
|
|
— |
|
|
435 |
|
Dividends declared on common stock ($0.20 per share) |
|
— |
|
|
— |
|
|
— |
|
|
— |
|
|
— |
|
|
(90,097 |
) |
|
— |
|
|
(90,097 |
) |
Dividends declared on preferred stock ($0.46875 per share) |
|
— |
|
|
— |
|
|
— |
|
|
— |
|
|
— |
|
|
(3,750 |
) |
|
— |
|
|
(3,750 |
) |
Dividends attributable to dividend equivalents |
|
— |
|
|
— |
|
|
— |
|
|
— |
|
|
— |
|
|
(256 |
) |
|
— |
|
|
(256 |
) |
Change in unrealized gains on MBS, net |
|
— |
|
|
— |
|
|
— |
|
|
— |
|
|
— |
|
|
— |
|
|
5,094 |
|
|
5,094 |
|
Derivative hedging instrument fair value changes, net |
|
— |
|
|
— |
|
|
— |
|
|
— |
|
|
— |
|
|
— |
|
|
(10,786 |
) |
|
(10,786 |
) |
Balance at March 31, 2019 |
|
8,000 |
|
|
$ |
80 |
|
|
450,483 |
|
|
$ |
4,505 |
|
|
$ |
3,622,636 |
|
|
$ |
(637,286 |
) |
|
$ |
414,596 |
|
|
$ |
3,404,531 |
|
Net income |
|
— |
|
|
— |
|
|
— |
|
|
— |
|
|
— |
|
|
93,040 |
|
|
— |
|
|
93,040 |
|
Issuance of common stock, net of expenses |
|
— |
|
|
— |
|
|
139 |
|
|
1 |
|
|
585 |
|
|
— |
|
|
— |
|
|
586 |
|
Equity based compensation expense |
|
— |
|
|
— |
|
|
— |
|
|
— |
|
|
2,438 |
|
|
— |
|
|
— |
|
|
2,438 |
|
Accrued dividends attributable to stock-based awards |
|
— |
|
|
— |
|
|
— |
|
|
— |
|
|
(260 |
) |
|
— |
|
|
— |
|
|
(260 |
) |
Dividends declared on common stock ($0.20 per share) |
|
— |
|
|
— |
|
|
— |
|
|
— |
|
|
— |
|
|
(90,124 |
) |
|
— |
|
|
(90,124 |
) |
Dividends declared on preferred stock ($0.46875 per share) |
|
— |
|
|
— |
|
|
— |
|
|
— |
|
|
— |
|
|
(3,750 |
) |
|
— |
|
|
(3,750 |
) |
Dividends attributable to dividend equivalents |
|
— |
|
|
— |
|
|
— |
|
|
— |
|
|
— |
|
|
(276 |
) |
|
— |
|
|
(276 |
) |
Change in unrealized gains on MBS, net |
|
— |
|
|
— |
|
|
— |
|
|
— |
|
|
— |
|
|
— |
|
|
17,637 |
|
|
17,637 |
|
Derivative hedging instrument fair value changes, net |
|
— |
|
|
— |
|
|
— |
|
|
— |
|
|
— |
|
|
— |
|
|
(20,449 |
) |
|
(20,449 |
) |
Balance at June 30, 2019 |
|
8,000 |
|
|
$ |
80 |
|
|
450,622 |
|
|
$ |
4,506 |
|
|
$ |
3,625,399 |
|
|
$ |
(638,396 |
) |
|
$ |
411,784 |
|
|
$ |
3,403,373 |
|
Net income |
|
— |
|
|
— |
|
|
— |
|
|
— |
|
|
— |
|
|
95,599 |
|
|
— |
|
|
95,599 |
|
Issuance of common stock, net of expenses |
|
— |
|
|
— |
|
|
1,070 |
|
|
11 |
|
|
7,713 |
|
|
— |
|
|
— |
|
|
7,724 |
|
Repurchase of shares of common stock (1)
|
|
— |
|
|
— |
|
|
— |
|
|
— |
|
|
— |
|
|
— |
|
|
— |
|
|
— |
|
Equity based compensation expense |
|
— |
|
|
— |
|
|
— |
|
|
— |
|
|
1,288 |
|
|
— |
|
|
— |
|
|
1,288 |
|
Accrued dividends attributable to stock-based awards |
|
— |
|
|
— |
|
|
— |
|
|
— |
|
|
(260 |
) |
|
— |
|
|
— |
|
|
(260 |
) |
Dividends declared on common stock ($0.20 per share) |
|
— |
|
|
— |
|
|
— |
|
|
— |
|
|
— |
|
|
(90,338 |
) |
|
— |
|
|
(90,338 |
) |
Dividends declared on preferred stock ($0.46875 per share) |
|
— |
|
|
— |
|
|
— |
|
|
— |
|
|
— |
|
|
(3,750 |
) |
|
— |
|
|
(3,750 |
) |
Dividends attributable to dividend equivalents |
|
— |
|
|
— |
|
|
— |
|
|
— |
|
|
— |
|
|
(276 |
) |
|
— |
|
|
(276 |
) |
Change in unrealized gains on MBS, net |
|
— |
|
|
— |
|
|
— |
|
|
— |
|
|
— |
|
|
— |
|
|
(9,016 |
) |
|
(9,016 |
|