Master Netting And Similar Agreements (Tables)

12 Months Ended

Dec. 31, 2016

Master Netting And Similar Agreements [Abstract]

Securities Purchased Under Agreements To Resell And Collateral Pledged By Counterparties [Table Text Block]

The following table provides details of Securities purchased under agreements to resell as presented on the Consolidated Statements of Condition and collateral pledged by counterparties as of December 31:

								Gross amounts not offset in the
								Statements of Condition
			Gross amounts		Net amounts of		Offsetting		Securities collateral
	Gross amounts		offset in the		assets presented		securities sold		(not recognized on
	of recognized		Statements of		in the Statements		under agreements		FHN's Statements
(Dollars in thousands)	assets		Condition		of Condition		to repurchase		of Condition)		Net amount
Securities purchased under agreements to resell:
2016	$	613,682	$	-	$	613,682	$	(1,628)	$	(603,813)	$	8,241
2015		615,773		-		615,773		(537)		(607,642)		7,594

Securities Sold Under Agreements To Repurchase And Collateral Pledged By Company [Table Text Block]

The following table provides details of Securities sold under agreements to repurchase as presented on the Consolidated Statements of Condition and collateral pledged by FHN as of December 31:

								Gross amounts not offset in the
								Statements of Condition
			Gross amounts		Net amounts of		Offsetting
	Gross amounts		offset in the		liabilities presented		securities
	of recognized		Statements of		in the Statements		purchased under		Securities
(Dollars in thousands)	liabilities		Condition		of Condition		agreements to resell		Collateral		Net amount
Securities sold under agreements to repurchase:
2016	$	453,053	$	-	$	453,053	$	(1,628)	$	(451,414)	$	11
2015		338,133		-		338,133		(537)		(337,523)		73

Schedule of the Remaining Contractual Maturity by Collateral Type of Securities Sold Under Agreements To Repurchase

Due to the short duration of Securities sold under agreements to repurchase and the nature of collateral involved, the risks associated with these transactions are considered minimal. The following tables provide details, by collateral type, of the remaining contractual maturity of Securities sold under agreements to repurchase as of December 31:
	December 31, 2016
	Overnight and
(Dollars in thousands)	Continuous		Up to 30 Days		Total
Securities sold under agreements to repurchase:
U.S. treasuries	$	14,864	$	-	$	14,864
Government agency issued MBS		421,771		-		421,771
Government agency issued CMO		-		16,418		16,418
Total Securities sold under agreements to repurchase	$	436,635	$	16,418	$	453,053
	December 31, 2015
	Overnight and
(Dollars in thousands)	Continuous		Up to 30 Days		Total
Securities sold under agreements to repurchase:
U.S. treasuries	$	7,066	$	-	$	7,066
Government agency issued MBS		229,982		-		229,982
Government agency issued CMO		90,562		10,523		101,085
Total Securities sold under agreements to repurchase	$	327,610	$	10,523	$	338,133