Consolidated Condensed Statements Of Comprehensive Income - USD ($)		3 Months Ended
		Mar. 31, 2016	Mar. 31, 2015
Components Of Other Comprehensive Income/(Loss) [Abstract]
Net income/(loss)		$ 52,213,000	$ (72,405,000)
Securities available-for-sale:
Unrealized fair value adjustments		40,180,000	18,004,000
Reclassification adjustment for net (gain)/loss included in net income		(1,020,000)	0
Cash flow hedges:
Unrealized gain/(loss)		3,839,000	0
Reclassification adjustment for net (gain)/loss included in net income		(374,000)	0
Recognized pension and other employee benefit plans net periodic benefit costs		1,126,000	1,083,000
Other comprehensive income/(loss)	[1]	43,751,000	19,087,000
Comprehensive income/(loss)		95,964,000	(53,318,000)
Comprehensive income attributable to noncontrolling interest		2,851,000	2,758,000
Comprehensive income/(loss) attributable to controlling interest		$ 93,113,000	$ (56,076,000)

[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.