XML 91 R64.htm IDEA: XBRL DOCUMENT
v3.3.0.814

Intangible Assets (Narrative) (Details) - USD ($) | Sep. 30, 2015 | Dec. 31, 2014 | Sep. 30, 2014 | Dec. 31, 2013
--- | --- | --- | --- | ---
Goodwill And Intangible Assets Disclosure [Abstract] |  |  |  |
Gross carrying amount of other intangible assets | $ 70,300,000 |  |  |
Intangible assets accumulated amortization | 44,700,000 |  |  |
Future Amortization Expense, Remainder of Fiscal Year | 1,300,000 |  |  |
Estimated aggregate amortization expense, Year 2016 | 5,000,000 |  |  |
Estimated aggregate amortization expense, Year 2017 | 4,700,000 |  |  |
Estimated aggregate amortization expense, Year 2018 | 4,500,000 |  |  |
Estimated aggregate amortization expense, Year 2019 | 4,200,000 |  |  |
Estimated aggregate amortization expense, Year 2020 | 1,500,000 |  |  |
Goodwill [Line Items] |  |  |  |
Gross goodwill | 145,932,000 | $ 145,932,000 | $ 141,943,000 | $ 141,943,000
Goodwill | 145,932,000 | $ 145,932,000 | $ 141,943,000 | $ 141,943,000
Non Strategic [Member] |  |  |  |
Goodwill [Line Items] |  |  |  |
Gross goodwill | 200,000,000 |  |  |
Accumulated impairments | 114,100,000 |  |  |
Accumulated divestiture related write-offs | 85,900,000 |  |  |
Goodwill | $ 0 |  |  |

X
- Definition Amount of amortization expense expected to be recognized during the next fiscal year following the latest fiscal year for assets, including financial assets, excluding goodwill, with a finite life. + References No definition available. + Details
Name: | fhn_FiniteLivedIntangibleAssetsIncludingFinancialAssetsAmortizationExpenseNextTwelveMonths
Namespace Prefix: | fhn_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Amount of amortization expense expected to be recognized during the fourth fiscal year following the latest fiscal year for assets, including financial assets, excluding goodwill, with a finite life. + References No definition available. + Details
Name: | fhn_FiniteLivedIntangibleAssetsIncludingFinancialAssetsAmortizationExpenseYearFour
Namespace Prefix: | fhn_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Amount of amortization expense expected to be recognized during the third fiscal year following the latest fiscal year for assets, including financial assets, excluding goodwill, with a finite life. + References No definition available. + Details
Name: | fhn_FiniteLivedIntangibleAssetsIncludingFinancialAssetsAmortizationExpenseYearThree
Namespace Prefix: | fhn_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Amount of amortization expense expected to be recognized during the fifth fiscal year following the latest fiscal year for assets, including financial assets, excluding goodwill, with a finite life. + References No definition available. + Details
Name: | fhn_FiniteLivedIntangibleAssetsIncludingFinancingAssetsAmortizationExpenseYearFive
Namespace Prefix: | fhn_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Amount of amortization expense expected to be recognized during the second fiscal year following the latest fiscal year for assets, including financial assets, excluding goodwill, with a finite life. + References No definition available. + Details
Name: | fhn_FiniteLivedIntangibleAssetsIncludingFinancingAssetsAmortizationExpenseYearTwo
Namespace Prefix: | fhn_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Amount of accumulated divestiture related write-offs for an asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized. + References No definition available. + Details
Name: | fhn_GoodwillDivestitureAccumulatedDivestitureRelatedWriteOffs
Namespace Prefix: | fhn_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Accumulated amount of amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 2 -Subparagraph (a)(1) -URI http://asc.fasb.org/extlink&oid=26713463&loc=d3e16323-109275 + Details
Name: | us-gaap_FiniteLivedIntangibleAssetsAccumulatedAmortization
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Amount of amortization expense for assets, excluding financial assets and goodwill, lacking physical substance with a finite life expected to be recognized in the remainder of the fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date. + References No definition available. + Details
Name: | us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseRemainderOfFiscalYear
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Amount after accumulated impairment loss of an asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 20 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=35741047&loc=d3e13816-109267 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 20 -Section 45 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6388280&loc=d3e13770-109266 + Details
Name: | us-gaap_Goodwill
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- References No definition available. + Details
Name: | us-gaap_GoodwillAndIntangibleAssetsDisclosureAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Amount before accumulated impairment loss of an asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (a,h) -URI http://asc.fasb.org/extlink&oid=35741047&loc=d3e13816-109267 + Details
Name: | us-gaap_GoodwillGross
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Amount of accumulated impairment loss for an asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (a,h) -URI http://asc.fasb.org/extlink&oid=35741047&loc=d3e13816-109267 + Details
Name: | us-gaap_GoodwillImpairedAccumulatedImpairmentLoss
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_GoodwillLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Gross carrying amount before accumulated amortization as of the balance sheet date of intangible assets not otherwise specified in the taxonomy having a reasonably expected period of economic benefit. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 2 -Subparagraph (a)(1) -URI http://asc.fasb.org/extlink&oid=26713463&loc=d3e16323-109275 + Details
Name: | us-gaap_OtherFiniteLivedIntangibleAssetsGross
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Details
Name: | us-gaap_StatementBusinessSegmentsAxis=fhn_NonStrategicMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |