Contractual interest rate for funds borrowed, under the debt agreement.

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- 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

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- Definition

Date when the debt instrument is scheduled to be fully repaid, in CCYY-MM-DD format.

+ References

+ Details

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- Definition

Including both current and noncurrent portions, carrying amount as of the balance sheet date of other forms of debt not elsewhere specified in the taxonomy with initial maturities beyond one year or beyond the normal operating cycle, if longer.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 210

-SubTopic 10

-Section S99

-Paragraph 1

-Subparagraph (SX 210.5-02.22)

-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 02

-Paragraph 19, 20, 22

-Article 5

+ Details

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- Definition

The cash inflow during the period from additional borrowings in aggregate debt. Includes proceeds from short-term and long-term debt.

+ References

No definition available.

+ Details

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Other Events (Narrative) (Details) - USD ($)	1 Months Ended	9 Months Ended
Other Events (Narrative) (Details) - USD ($)	Oct. 31, 2015	Sep. 30, 2015	Dec. 31, 2014	Sep. 30, 2014
Debt Instrument [Line Items]
Term borrowings		$ 1,341,186,000	$ 1,880,105,000	$ 1,491,138,000
First Horizon National Corporation \| Senior Notes \| Debt Instrument Maturity Date - 12/15/15 - 5.375%
Debt Instrument [Line Items]
Term borrowings		$ 500,000,000
Debt instrument interest rate		5.375%
Debt instrument maturity date		Dec. 15, 2015
First Horizon National Corporation \| Senior Notes \| Debt Instrument Maturity Date - 12/15/20 - 3.50%
Debt Instrument [Line Items]
Term borrowings	$ 500,000,000
Debt instrument interest rate	3.50%
Debt instrument maturity date	Dec. 15, 2020
Proceeds from issuance	$ 497,000,000