Consolidated Condensed Statements Of Comprehensive Income (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Mar. 31, 2013		Mar. 31, 2012
Components Of Other Comprehensive Income/(Loss) [Abstract]
Net income/(loss)	$ 44,969		$ 33,371
Unrealized fair value adjustments:
Securities available-for-sale	(6,659)		7
Recognized pension and other employee benefit plans net periodic benefit costs	1,363		5,536
Other comprehensive income/(loss)	(5,296)	[1]	5,543	[1]
Comprehensive income/(loss)	39,673		38,914
Comprehensive income attributable to noncontrolling interest	2,813		2,844
Comprehensive income/(loss) attributable to controlling interest	$ 36,860		$ 36,070

[1] Due to the nature of the preferred stock issued by FHN and its subsidiaries, all components of Other comprehensive income/(loss) have been attributed solely to FHN as the controlling interest holder.