Consolidated Condensed Statements Of Condition (USD $) In Thousands, unless otherwise specified	Jun. 30, 2013		Dec. 31, 2012	Jun. 30, 2012
Assets:
Cash and due from banks (Restricted - $1.2 million on June 30, 2013; and $ - on June 30, 2012 and December 31, 2012)	$ 382,601		$ 469,879	$ 330,931
Federal funds sold	52,169		34,492	44,961
Securities purchased under agreements to resell (Note 16)	602,126		601,891	480,543
Total cash and cash equivalents (Restricted - $1.2 million on June 30, 2013; and $ - on June 30, 2012 and December 31, 2012)	1,036,896		1,106,262	856,435
Interest-bearing cash	344,150		353,373	484,430
Trading securities	1,267,348		1,262,720	1,361,717
Loans held-for-sale	385,105		401,937	424,051
Securities available-for-sale (Note 3)	3,229,071	[1]	3,061,808	3,264,866	[1]
Loans, net of unearned income (Restricted - $.1 billion on June 30, 2013; June 30, 2012; and December 31, 2012) (Note 4)	16,197,046		16,708,582	16,185,763
Less: Allowance for loan losses (Restricted - $3.8 million on June 30, 2013; $6.0 million on June 30, 2012; and $4.3 million on December 31, 2012) (Note 4)	261,934		276,963	321,051
Total net loans (Restricted - $.1 billion on June 30, 2013; June 30, 2012; and December 31, 2012)	15,935,112		16,431,619	15,864,712
Mortgage servicing rights (Note 5)	113,853		114,311	129,291
Goodwill (Note 6)	147,762		134,242	134,242
Other intangible assets, net (Note 6)	23,144		22,700	24,659
Capital markets receivables	429,801		303,893	377,496
Premises and equipment, net	310,016		303,273	311,753
Real estate acquired by foreclosure	70,368		60,690	69,603
Derivative assets (Note 15)	235,759		292,472	340,810
Other assets (Restricted - $1.7 million on June 30, 2013; $2.6 million on June 30, 2012; and $1.9 million on December 31, 2012)	1,604,889		1,670,840	1,848,890
Total assets (Restricted - $.1 billion on June 30, 2013; June 30, 2012; and December 31, 2012)	25,133,274		25,520,140	25,492,955
Deposits:
Savings	6,928,447		6,705,496	5,979,874
Time deposits	1,051,327		1,019,938	1,109,163
Other interest-bearing deposits	3,825,235		3,798,313	3,565,873
Certificates of deposit $100,000 and more	602,921		503,490	628,539
Interest-bearing	12,407,930		12,027,237	11,283,449
Noninterest-bearing	4,603,954		4,602,472	4,833,994
Total deposits	17,011,884		16,629,709	16,117,443
Federal funds purchased	1,142,749		1,351,023	1,417,590
Securities sold under agreements to repurchase (Note 16)	433,761		555,438	363,400
Trading liabilities	596,869		564,429	470,631
Other short-term borrowings	446,909		441,201	1,094,179
Term borrowings (Restricted - $.1 billion on June 30, 2013; June 30, 2012; and December 31, 2012)	1,800,255		2,226,482	2,294,224
Capital markets payables	368,372		296,450	203,548
Derivative liabilities (Note 15)	198,489		202,269	235,490
Other liabilities	587,635		743,933	782,044
Total liabilities (Restricted - $.1 billion on June 30, 2013; June 30, 2012; and December 31, 2012)	22,586,923		23,010,934	22,978,549
First Horizon National Corporation Shareholders' Equity:
Preferred stock - Series A, non-cumulative perpetual, no par value, liquidation preference of $100,000 per share - (shares authorized - 1,000; shares issued - 1,000 on June 30, 2013; and $- on June 30, 2012 and December 31, 2012)	95,624		0	0
Common stock - $.625 par value (shares authorized - 400,000,000; shares issued - 240,554,552 on June 30, 2013; 248,810,099 on June 30, 2012; and 243,597,780 on December 31, 2012)	150,347		152,249	155,506
Capital surplus	1,416,563		1,488,463	1,528,161
Undivided profits	777,108		719,672	658,157
Accumulated other comprehensive loss, net (Note 8)	(188,665)		(146,343)	(122,583)
Total First Horizon National Corporation Shareholders' Equity	2,250,977		2,214,041	2,219,241
Noncontrolling interest	295,374		295,165	295,165
Total equity	2,546,351		2,509,206	2,514,406
Total liabilities and equity	$ 25,133,274		$ 25,520,140	$ 25,492,955

[1] Includes $3.0 billion of securities pledged to secure public deposits, securities sold under agreements to repurchase, and for other purposes.