Consolidated Condensed Statements Of Condition (USD $) In Thousands, unless otherwise specified	Mar. 31, 2013		Dec. 31, 2012	Mar. 31, 2012
Assets:
Cash and due from banks (Restricted - $.2 million on March 31, 2013; $1.7 million on March 31, 2012; and $- on December 31, 2012)	$ 275,262		$ 469,879	$ 349,604
Federal funds sold	33,738		34,492	18,732
Securities purchased under agreements to resell (Note 15)	732,696		601,891	595,973
Total cash and cash equivalents (Restricted - $.2 million on March 31, 2013; $1.7 million on March 31, 2012; and $- on December 31, 2012)	1,041,696		1,106,262	964,309
Interest-bearing cash	431,182		353,373	761,098
Trading securities	1,397,746		1,262,720	1,238,041
Loans held-for-sale	390,874		401,937	431,905
Securities available-for-sale (Note 2)	3,190,219	[1]	3,061,808	3,296,603	[2]
Loans, net of unearned income (Restricted - $.1 billion on March 31, 2013 and December 31, 2012; and $.2 billion on March 31, 2012) (Note 3)	15,889,670		16,708,582	15,971,330
Less: Allowance for loan losses ( Restricted - $3.7 million on March 31, 2013; $10.4 million on March 31, 2012; and $4.3 million on December 31, 2012) (Note 3)	265,218		276,963	346,016
Total net loans (Restricted - $.1 billion on March 31, 2013, March 31, 2012 and December 31, 2012)	15,624,452		16,431,619	15,625,314
Mortgage servicing rights (Note 4)	109,102		114,311	142,956
Goodwill (Note 5)	134,242		134,242	134,242
Other intangible assets, net (Note 5)	21,772		22,700	25,638
Capital markets receivables	533,306		303,893	522,001
Premises and equipment, net	299,740		303,273	314,903
Real estate acquired by foreclosure	54,672		60,690	78,947
Derivative assets (Note 14)	274,332		292,472	340,337
Other assets (Restricted - $1.6 million on March 31, 2013; $4.5 million on March 31, 2012; and $1.9 million on December 31, 2012)	1,663,092		1,670,840	1,802,675
Total assets (Restricted - $.1 billion on March 31, 2013 and December 31, 2012; and $.2 billion on March 31, 2012)	25,166,427		25,520,140	25,678,969
Deposits:
Savings	6,498,832		6,705,496	6,615,289
Time deposits	988,375		1,019,938	1,142,249
Other interest-bearing deposits	3,740,257		3,798,313	3,500,445
Certificates of deposit $100,000 and more	522,958		503,490	707,590
Interest-bearing	11,750,422		12,027,237	11,965,573
Noninterest-bearing	4,454,045		4,602,472	4,969,597
Total deposits	16,204,467		16,629,709	16,935,170
Federal funds purchased	1,361,670		1,351,023	1,487,469
Securities sold under agreements to repurchase (Note 15)	488,010		555,438	313,765
Trading liabilities	781,306		564,429	567,571
Other short-term borrowings	186,898		441,201	181,570
Term borrowings (Restricted - $.1 billion on March 31, 2013 and December 31, 2012; and $.2 billion on March 31, 2012)	2,197,864		2,226,482	2,340,706
Capital markets payables	461,333		296,450	361,018
Derivative liabilities (Note 14)	199,999		202,269	234,188
Other liabilities	685,153		743,933	583,339
Total liabilities (Restricted - $.1 billion on March 31, 2013 and December 31, 2012; and $.2 billion on March 31, 2012)	22,566,700		23,010,934	23,004,796
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 March 31, 2013; and $- on March 31, 2012 and December 31,2012)	95,624		0	0
Common stock - $.625 par value (shares authorized - 400,000,000; shares issued - 241,224,839 on March 31, 2013; 252,666,860 on March 31, 2012; and 243,597,780 on December 31, 2012)	150,766		152,249	157,917
Capital surplus	1,461,292		1,488,463	1,560,343
Undivided profits	748,427		719,672	785,361
Accumulated other comprehensive loss, net (Note 7)	(151,639)		(146,343)	(124,613)
Total First Horizon National Corporation Shareholders' Equity	2,304,470		2,214,041	2,379,008
Noncontrolling interest	295,257		295,165	295,165
Total equity	2,599,727		2,509,206	2,674,173
Total liabilities and equity	$ 25,166,427		$ 25,520,140	$ 25,678,969

[1] Includes $2.9 billion of securities pledged to secure public deposits, securities sold under agreements to repurchase, and for other purposes.

[2] Includes $2.8 billion of securities pledged to secure public deposits, securities sold under agreements to repurchase, and for other purposes.