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eedLoansSBAandUSDAMember2025-12-310000036966us-gaap:CarryingReportedAmountFairValueDisclosureMemberfhn:MortgageLoanLOCOMMember2025-12-310000036966us-gaap:EstimateOfFairValueFairValueDisclosureMemberus-gaap:FairValueInputsLevel1Memberfhn:MortgageLoanLOCOMMember2025-12-310000036966us-gaap:EstimateOfFairValueFairValueDisclosureMemberus-gaap:FairValueInputsLevel2Memberfhn:MortgageLoanLOCOMMember2025-12-310000036966us-gaap:EstimateOfFairValueFairValueDisclosureMemberus-gaap:FairValueInputsLevel3Memberfhn:MortgageLoanLOCOMMember2025-12-310000036966us-gaap:EstimateOfFairValueFairValueDisclosureMemberfhn:MortgageLoanLOCOMMember2025-12-310000036966fhn:FHLBCincinnatiStockMemberus-gaap:FairValueInputsLevel3Member2025-12-310000036966fhn:FRBStockMemberus-gaap:FairValueInputsLevel3Member2025-12-310000036966us-gaap:PortionAtOtherThanFairValueFairValueDisclosureMember2026-03-310000036966us-gaap:PortionAtOtherThanFairValueFairValueDisclosureMember2025-12-310000036966us-gaap:SeriesCPreferredStockMemberus-gaap:SubsequentEventMember2026-05-012026-05-010000036966fhn:SeriesCDepositorySharesMemberus-gaap:SubsequentEventMember2026-05-010000036966us-gaap:SeriesCPreferredStockMemberus-gaap:SubsequentEventMember2026-05-010000036966fhn:SeriesDDepositorySharesMemberus-gaap:SubsequentEventMember2026-05-01