0001055160 2026-06-03 2026-06-03 0001055160 us-gaap:CommonStockMember 2026-06-03 2026-06-03 0001055160 us-gaap:SeriesBPreferredStockMember 2026-06-03 2026-06-03 0001055160 us-gaap:SeriesCPreferredStockMember 2026-06-03 2026-06-03 0001055160 MFA:Senior8.875PercentNotesDue2029Member 2026-06-03 2026-06-03 0001055160 MFA:Senior9.000PercentNotesDue2029Member 2026-06-03 2026-06-03 false 0001055160 8-K 2026-06-03 MFA FINANCIAL, INC. MD 1-13991 13-3974868 One Vanderbilt Avenue 48th Floor New York NY 10017 212 207-6400 false false false false Common Stock, par value $0.01 per share MFA NYSE 7.50% Series B Cumulative Redeemable Preferred Stock, par value $0.01 per share MFA/PB NYSE 6.50% Series C Fixed-to-Floating Rate Cumulative Redeemable Preferred Stock, par value $0.01 per share MFA/PC NYSE 8.875% Senior Notes due 2029 MFAN NYSE 9.000% Senior Notes due 2029 MFAO NYSE false