Investment Securities (Tables)

3 Months Ended

Mar. 31, 2012

Investment Securities [Abstract]

Schedule Of FHN's Available For Sale Securities

	On March 31, 2012
(Dollars in thousands)	Amortized Cost		Gross Unrealized Gains		Gross Unrealized Losses			Fair Value
Securities available for sale:
U.S. treasuries	$	40,011	$	26	$	—		$	40,037
Government agency issued mortgage-backed securities ("MBS")		1,352,827		74,936		(734	)		1,427,029
Government agency issued collateralized mortgage obligations ("CMO")		1,537,732		35,104		—			1,572,836
Other U.S. government agencies		14,121		426		—			14,547
States and municipalities		18,070		—		—			18,070
Equity (a)		223,551		6		—			223,557
Other		510		17		—			527
Total securities available for sale (b)	$	3,186,822	$	110,515	$	(734	)	$	3,296,603

(a) Includes restricted investments in FHLB-Cincinnati stock of $125.5 million and FRB stock of $66.1 million. The remainder is money market, venture capital, and cost method investments.

(b) Includes $2.8 billion of securities pledged to secure public deposits, securities sold under agreements to repurchase, and for other purposes. Of this amount, $.4 billion was pledged as collateral for securities sold under repurchase agreements.

	On March 31, 2011
(Dollars in thousands)	Amortized Cost		Gross Unrealized Gains		Gross Unrealized Losses			Fair Value
Securities available for sale:
U.S. treasuries	$	60,126	$	196	$	—		$	60,322
Government agency issued MBS		1,500,461		45,114		(3,346	)		1,542,229
Government agency issued CMO		1,187,262		22,360		(870	)		1,208,752
Other U.S. government agencies		20,218		907		—			21,125
States and municipalities		26,015		—		—			26,015
Equity (a)		226,502		—		(10	)		226,492
Other		511		32		—			543
Total securities available for sale (b)	$	3,021,095	$	68,609	$	(4,226	)	$	3,085,478

(a) Includes restricted investments in FHLB-Cincinnati stock of $125.5 million and FRB stock of $66.2 million. The remainder is money market, venture capital, and cost method investments.

(b) Includes $2.8 billion of securities pledged to secure public deposits, securities sold under agreements to repurchase, and for other purposes. Of this amount, $.9 bilion was pledged as collateral for securities sold under repurchase agreements.

Schedule Of Amortized Cost And Fair Value By Contractual Maturity

	Available for Sale
(Dollars in thousands)	Amortized Cost		Fair Value
Within 1 year	$	49,366	$	49,489
After 1 year; within 5 years		6,265		6,594
After 5 years; within 10 years		—		—
After 10 years		16,570		16,570
Subtotal		72,201		72,653
Government agency issued MBS and CMO		2,890,560		2,999,866
Equity and other securities		224,061		224,084
Total	$	3,186,822	$	3,296,603

Schedule Of Realized Gross Gains And Losses On Sale From Available For Sale Portfolio

(Dollars in thousands)	2012		2011
Gross gains on sales of securities	$	328	$	9,421
Gross (losses) on sales of securities		—		(8,623	)
Net gain/(loss) on sales of securities (a)	$	328	$	798
Venture capital investments (b)		—		—
Net other than temporary impairment ("OTTI") recorded		—		—
Total securities gain/(loss), net	$	328	$	798

(a) Proceeds from sales for the three months ended March 31, 2012, and 2011 were $39.1 million, and $458.3 million, respectively.

(b) Generally includes write-offs and/or unrealized fair value adjustments related to venture capital investments.

Schedule Of Investments Within The Available For Sale Portfolio That Had Unrealized Losses

	On March 31, 2012
	Less than 12 months					12 months or longer				Total
(Dollars in thousands)	Fair Value		Unrealized Losses			Fair Value		Unrealized Losses		Fair Value		Unrealized Losses
Government agency issued MBS	$	101,397	$	(734	)		—		—	$	101,397	$	(734	)
Total temporarily impaired securities	$	101,397	$	(734	)	$	—	$	—	$	101,397	$	(734	)

	On March 31, 2011
	Less than 12 months					12 months or longer				Total
(Dollars in thousands)	Fair Value		Unrealized Losses			Fair Value		Unrealized Losses		Fair Value		Unrealized Losses
Government agency issued MBS	$	572,326	$	(3,346	)	$	—	$	—	$	572,326	$	(3,346	)
Government agency issued CMO		153,271		(870	)		—		—		153,271		(870	)
Equity		33		(10	)		—		—		33		(10	)
Total temporarily impaired securities	$	725,630	$	(4,226	)	$	—	$	—	$	725,630	$	(4,226	)