XML 101 R85.htm IDEA: XBRL DOCUMENT
v3.7.0.1

Schedule of the Remaining Contractual Maturity by Collateral Type of Securities Sold Under Agreements To Repurchase (Details) - USD ($) $ in Thousands | Mar. 31, 2017 | Dec. 31, 2016
--- | --- | ---
Transfer Of Certain Financial Assets Accounted For As Secured Borrowings [Line Items] |  |
Securities sold under agreements to repurchase | $ 406,354 | $ 453,053
U.S. treasuries |  |
Transfer Of Certain Financial Assets Accounted For As Secured Borrowings [Line Items] |  |
Securities sold under agreements to repurchase | 19,344 | 14,864
Government agency issued MBS |  |
Transfer Of Certain Financial Assets Accounted For As Secured Borrowings [Line Items] |  |
Securities sold under agreements to repurchase | 345,156 | 421,771
Government agency issued CMO |  |
Transfer Of Certain Financial Assets Accounted For As Secured Borrowings [Line Items] |  |
Securities sold under agreements to repurchase | 41,854 | 16,418
Overnight and Continuous |  |
Transfer Of Certain Financial Assets Accounted For As Secured Borrowings [Line Items] |  |
Securities sold under agreements to repurchase | 393,883 | 436,635
Overnight and Continuous | U.S. treasuries |  |
Transfer Of Certain Financial Assets Accounted For As Secured Borrowings [Line Items] |  |
Securities sold under agreements to repurchase | 19,344 | 14,864
Overnight and Continuous | Government agency issued MBS |  |
Transfer Of Certain Financial Assets Accounted For As Secured Borrowings [Line Items] |  |
Securities sold under agreements to repurchase | 345,156 | 421,771
Overnight and Continuous | Government agency issued CMO |  |
Transfer Of Certain Financial Assets Accounted For As Secured Borrowings [Line Items] |  |
Securities sold under agreements to repurchase | 29,383 | 0
Up to 30 Days |  |
Transfer Of Certain Financial Assets Accounted For As Secured Borrowings [Line Items] |  |
Securities sold under agreements to repurchase | 12,471 | 16,418
Up to 30 Days | U.S. treasuries |  |
Transfer Of Certain Financial Assets Accounted For As Secured Borrowings [Line Items] |  |
Securities sold under agreements to repurchase | 0 | 0
Up to 30 Days | Government agency issued MBS |  |
Transfer Of Certain Financial Assets Accounted For As Secured Borrowings [Line Items] |  |
Securities sold under agreements to repurchase | 0 | 0
Up to 30 Days | Government agency issued CMO |  |
Transfer Of Certain Financial Assets Accounted For As Secured Borrowings [Line Items] |  |
Securities sold under agreements to repurchase | $ 12,471 | $ 16,418

X
- Definition Amount, after the effects of master netting arrangements, of funds outstanding borrowed in the form of a security repurchase agreement between the entity and another party for the sale and repurchase of identical or substantially the same securities at a date certain for a specified price. Includes liabilities not subject to a master netting arrangement and not elected to be offset. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 20 -Section 50 -Paragraph 3 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=51824906&loc=SL20225862-175312 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.4-08.(m)(1)(a)(i)) -URI http://asc.fasb.org/extlink&oid=26873400&loc=d3e23780-122690 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-03.13(1)) -URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 20 -Section 55 -Paragraph 10 -URI http://asc.fasb.org/extlink&oid=51825145&loc=SL20226008-175313 Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 20 -Section 45 -Paragraph 11 -URI http://asc.fasb.org/extlink&oid=49176635&loc=d3e9760-107771 Reference 6: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Repurchase Agreement Accounted for as a Collateralized Borrowing -URI http://asc.fasb.org/extlink&oid=49203159 + Details
Name: | us-gaap_SecuritiesSoldUnderAgreementsToRepurchase
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

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_TransferOfCertainFinancialAssetsAccountedForAsSecuredBorrowingsLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Details
Name: | us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis=us-gaap_USTreasurySecuritiesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis=us-gaap_MortgageBackedSecuritiesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis=us-gaap_CollateralizedMortgageObligationsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | fhn_RepurchaseAgreementsAndSimilarTransactionsMaturityPeriodsAxis=us-gaap_MaturityOvernightMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | fhn_RepurchaseAgreementsAndSimilarTransactionsMaturityPeriodsAxis=fhn_MaturityLessThan30DaysMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |