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Other Events	9 Months Ended
Other Events	Sep. 30, 2011
Other Events [Abstract]
Other Events	Note 18 – Other Events On October 17, 2011, FHN announced a $100 million share purchase authority that will expire on August 31, 2012. Purchases may be made in the open market or through privately negotiated transactions and will be subject to market conditions, accumulation of excess equity, prudent capital management, and legal and regulatory restrictions. The new authority is separate from the outstanding authority tied to compensation plans.