Earnings Per Share (Schedule Of Reconciliation Of The Numerators Used In Calculating Earnings/(Loss) Per Share) (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Mar. 31, 2012		Mar. 31, 2011
Earnings Per Share [Abstract]
Income/(loss) from continuing operations	$ 33,806		$ 42,132
Income/(loss) from discontinued operations, net of tax	(435)	[1]	871	[1]
Net income/(loss)	33,371		43,003
Net income attributable to noncontrolling interest	2,844		2,844
Net income/(loss) available to common shareholders	30,527		40,159
Net income/(loss) from continuing operations available to common shareholders	$ 30,962		$ 39,288

[1] Due to the nature of the subsidiary preferred stock issued by First Horizon Preferred Funding, LLC, First Horizon Preferred Funding II, LLC, and FTBNA, all components of Income/(loss) from discontinued operations, net of tax have been attributed solely to FHN as the controlling interest holder.