XML 73 R62.htm IDEA: XBRL DOCUMENT
v3.10.0.1

Loans (Schedule Of Troubled Debt Restructurings Within The Previous 12 Months) (Details) $ in Thousands | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jun. 30, 2018 USD ($) loan | Jun. 30, 2017 USD ($) loan | Jun. 30, 2018 USD ($) loan | Jun. 30, 2017 USD ($) loan
General C&I |  |  |  |
Financing Receivable, Modifications [Line Items] |  |  |  |
Number | loan | 1 | 2 | 1 | 3
Recorded Investment | $ | $ 258 | $ 2,228 | $ 258 | $ 8,007
C&I |  |  |  |
Financing Receivable, Modifications [Line Items] |  |  |  |
Number | loan | 1 | 2 | 1 | 3
Recorded Investment | $ | $ 258 | $ 2,228 | $ 258 | $ 8,007
HELOC |  |  |  |
Financing Receivable, Modifications [Line Items] |  |  |  |
Number | loan | 2 | 0 | 4 | 4
Recorded Investment | $ | $ 95 | $ 0 | $ 164 | $ 685
R/E installment loans |  |  |  |
Financing Receivable, Modifications [Line Items] |  |  |  |
Number | loan | 1 |  | 1 |
Recorded Investment | $ | $ 25 |  | $ 25 |
Consumer real estate |  |  |  |
Financing Receivable, Modifications [Line Items] |  |  |  |
Number | loan | 3 | 0 | 5 | 4
Recorded Investment | $ | $ 120 | $ 0 | $ 189 | $ 685
Permanent mortgage |  |  |  |
Financing Receivable, Modifications [Line Items] |  |  |  |
Number | loan | 1 | 1 | 2 | 1
Recorded Investment | $ | $ 293 | $ 538 | $ 405 | $ 538
Credit card & other |  |  |  |
Financing Receivable, Modifications [Line Items] |  |  |  |
Number | loan | 12 | 1 | 26 | 3
Recorded Investment | $ | $ 75 | $ 11 | $ 156 | $ 18
Total troubled debt restructurings |  |  |  |
Financing Receivable, Modifications [Line Items] |  |  |  |
Number | loan | 17 | 4 | 34 | 11
Recorded Investment | $ | $ 746 | $ 2,777 | $ 1,008 | $ 9,248

X
- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References No definition available. + Details
Name: | us-gaap_FinancingReceivableModificationsLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Number of financing receivables that have been modified by troubled debt restructurings within the previous 12 months and for which there was a payment default. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 34 -URI http://asc.fasb.org/extlink&oid=84173941&loc=SL6953682-111524 + Details
Name: | us-gaap_FinancingReceivableModificationsSubsequentDefaultNumberOfContracts1
Namespace Prefix: | us-gaap_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | duration

X
- Definition Amount of investment related to financing receivables modified by troubled debt restructurings within the previous 12 months, for which there was a payment default. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 34 -URI http://asc.fasb.org/extlink&oid=84173941&loc=SL6953682-111524 + Details
Name: | us-gaap_FinancingReceivableModificationsSubsequentDefaultRecordedInvestment1
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Details
Name: | us-gaap_FinancingReceivablePortfolioSegmentAxis=fhn_GeneralCIMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FinancingReceivablePortfolioSegmentAxis=fhn_CommercialFinancialAndIndustrialPortfolioSegmentMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FinancingReceivablePortfolioSegmentAxis=us-gaap_HomeEquityMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FinancingReceivablePortfolioSegmentAxis=fhn_REInstallmentLoansMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FinancingReceivablePortfolioSegmentAxis=fhn_ConsumerRealEstatePortfolioSegmentMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FinancingReceivablePortfolioSegmentAxis=fhn_PermanentMortgagePortfolioSegmentMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FinancingReceivablePortfolioSegmentAxis=fhn_CreditCardAndOtherPortfolioSegmentMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FinancingReceivablePortfolioSegmentAxis=fhn_TroubledDebtRestructuringsThatSubsequentlyDefaultedMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |