First Horizon (FHN) 10-Q 8 May 19 2019 Q1 Quarterly report Financial data

Document And Entity Information

Document And Entity Information	3 Months Ended
	Mar. 31, 2019shares
Document And Entity Information [Abstract]
Entity Registrant Name	FIRST HORIZON NATIONAL CORP
Entity Central Index Key	0000036966
Current Fiscal Year End Date	--12-31
Entity Filer Category	Large Accelerated Filer
Document Type	10-Q
Document Period End Date	Mar. 31, 2019
Document Fiscal Year Focus	2019
Document Fiscal Period Focus	Q1
Amendment Flag	false
Entity Common Stock, Shares Outstanding (in shares)	315,361,125
Trading Symbol - Common	FHN
Entity Emerging Growth Company	false
Entity Small Business	false

CONSOLIDATED CONDENSED STATEMEN

CONSOLIDATED CONDENSED STATEMENTS OF CONDITION - USD ($) $ in Thousands		Mar. 31, 2019	Dec. 31, 2018
Assets:
Cash and due from banks		$ 570,589	$ 781,291
Federal funds sold			237,591
Securities purchased under agreements to resell		474,679	386,443
Total cash and cash equivalents		1,212,870	1,405,325
Interest-bearing cash			1,277,611
Trading securities		1,681,727	1,448,168
Loans held-for-sale	[1]	594,662	679,149
Securities available-for-sale (Note 3)		4,616,322	4,626,470
Securities held-to-maturity		10,000	10,000
Loans, net of unearned income	[2]	27,990,048	27,535,532
Less: Allowance for loan losses		184,911	180,424
Total net loans		27,805,137	27,355,108
Goodwill		1,432,787	1,432,787
Other intangible assets, net (Note 6)		148,818	155,034
Fixed income receivables		46,782	38,861
Premises and equipment, net (March 31, 2019 and December 31, 2018 include $16.0 million and $19.6 million, respectively, classified as held-for-sale)		484,494	494,041
Other real estate owned (OREO)	[3]	23,396	25,290
Derivative assets (Note 15)		118,128	81,475
Other assets		1,910,626	1,802,939
Total assets		41,099,003	40,832,258
Deposits:
Savings		11,651,750	12,064,072
Time deposits, net		4,454,622	4,105,777
Other interest-bearing deposits		8,393,468	8,371,826
Interest-bearing		24,499,840	24,541,675
Noninterest-bearing		7,963,048	8,141,317
Total deposits		32,462,888	32,682,992
Federal funds purchased			256,567
Securities sold under agreements to repurchase		745,788	762,592
Trading liabilities			335,380
Other short-term borrowings			114,764
Term borrowings		1,177,926	1,170,963
Fixed income payables		100,290	9,572
Derivative liabilities (Note 15)		107,123	133,713
Other liabilities		748,606	580,335
Total liabilities		36,252,482	36,046,878
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, 2019 and December 31, 2018)		95,624	95,624
Common stock - $.625 par value (shares authorized - 400,000,000; shares issued - 315,361,125 on March 31, 2019 and 318,573,400 on December 31, 2018)		197,101	199,108
Capital surplus		2,983,948	3,029,425
Undivided profits		1,595,568	1,542,408
Accumulated other comprehensive loss, net (Note 9)		(321,151)	(376,616)
Total First Horizon National Corporation Shareholders’ Equity		4,551,090	4,489,949
Noncontrolling interest		295,431	295,431
Total equity		4,846,521	4,785,380
Total liabilities and equity		$ 41,099,003	$ 40,832,258
[1]	March 31, 2019 and December 31, 2018 include $8.0 million and $8.4 million, respectively, of held-for-sale consumer mortgage loans secured by residential real estate in process of foreclosure.
[2]	March 31, 2019 and December 31, 2018 include $24.1 million and $28.6 million, respectively, of held-to-maturity consumer mortgage loans secured by residential real estate in process of foreclosure.
[3]	March 31, 2019 and December 31, 2018 include $10.1 million and $9.7 million, respectively, of foreclosed residential real estate.

CONSOLIDATED CONDENSED STATEM_2

CONSOLIDATED CONDENSED STATEMENTS OF CONDITION (Parenthetical) - USD ($) $ in Thousands		Mar. 31, 2019	Dec. 31, 2018
OREO	[1]	$ 23,396	$ 25,290
Premises and equipment held for sale		$ 16,000	$ 19,600
Common stock, par value (in dollars per share)		$ 0.625	$ 0.625
Common stock, shares authorized (in shares)		400,000,000	400,000,000
Common stock, shares issued (in shares)		315,361,125	318,573,400
Preferred stock liquidation preference value (in dollars per share)		$ 100,000	$ 100,000
Preferred stock, shares authorized (in shares)		1,000	1,000
Preferred stock, shares issued (in shares)		1,000	1,000
Residential Real Estate
Mortgage Loans in Process of Foreclosure, Amount		$ 24,100	$ 28,600
OREO		10,100	9,700
Residential Real Estate | Loans Held For Sale, Residential Real Estate
Mortgage Loans in Process of Foreclosure, Amount		$ 8,000	$ 8,400
[1]	March 31, 2019 and December 31, 2018 include $10.1 million and $9.7 million, respectively, of foreclosed residential real estate.

CONSOLIDATED CONDENSED STATEM_3

CONSOLIDATED CONDENSED STATEMENTS OF INCOME - USD ($) shares in Thousands, $ in Thousands	3 Months Ended
	Mar. 31, 2019	Mar. 31, 2018
Interest income:
Interest and fees on loans	$ 331,938	$ 299,493
Interest on investment securities available-for-sale	31,843	32,847
Interest on investment securities held-to-maturity	131	131
Interest on loans held-for-sale	9,877	12,144
Interest on trading securities	13,548	14,408
Interest on other earning assets	13,278	4,332
Total interest income	400,615	363,355
Interest on deposits:
Savings	39,914	14,900
Time deposits	20,254	9,525
Other interest-bearing deposits	22,042	10,608
Interest on trading liabilities	2,816	5,124
Interest on short-term borrowings	6,744	10,042
Interest on term borrowings	14,337	11,983
Total interest expense	106,107	62,182
Net interest income	294,508	301,173
Provision/(provision credit) for loan losses	9,000	(1,000)
Net interest income after provision/(provision credit) for loan losses	285,508	302,173
Noninterest income:
Fixed income	53,749	45,506
Deposit transactions and cash management	31,621	35,984
Brokerage, management fees and commissions	12,633	13,483
Trust services and investment management	7,026	7,277
Bankcard income	6,015	6,445
Bank-owned life insurance (BOLI)	4,402	3,993
Debt securities gains/(losses), net	0	52
Equity securities gains/(losses), net (Note 3)	31	34
All other income and commissions (Note 8)	25,568	23,243
Total noninterest income	141,045	136,017
Adjusted gross income after provision/(provision credit) for loan losses	426,553	438,190
Noninterest expense:
Employee compensation, incentives, and benefits	177,925	171,254
Occupancy	20,693	20,451
Computer software	15,139	15,132
Professional fees	12,299	12,272
Operations services	11,488	15,561
Equipment rentals, depreciation, and maintenance	8,829	10,018
Advertising and public relations	7,242	3,599
Communications and courier	6,453	8,232
Amortization of intangible assets	6,216	6,474
FDIC premium expense	4,273	8,614
Contract employment and outsourcing	3,371	4,053
Legal fees	2,831	2,345
Repurchase and foreclosure provision/(provision credit)	(455)	(72)
All other expense (Note 8)	19,786	35,332
Total noninterest expense	296,090	313,265
Income/(loss) before income taxes	130,463	124,925
Provision/(benefit) for income taxes	27,058	29,931
Net income/(loss)	103,405	94,994
Net income attributable to noncontrolling interest	2,820	2,820
Net income/(loss) attributable to controlling interest	100,585	92,174
Preferred stock dividends	1,550	1,550
Net income/(loss) available to common shareholders	$ 99,035	$ 90,624
Basic earnings/(loss) per share (in dollars per share)	$ 0.31	$ 0.28
Diluted earnings/(loss) per share (in dollars per share)	$ 0.31	$ 0.27
Weighted average common shares (in shares)	317,435	326,489
Diluted average common shares (in shares)	319,581	330,344
Cash dividends declared per common share (in dollars per share)	$ 0.14	$ 0.12

CONSOLIDATED CONDENSED STATEM_4

CONSOLIDATED CONDENSED STATEMENTS OF COMPREHENSIVE INCOME - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2019	Mar. 31, 2018
Statements of Comprehensive Income/(loss)
Net income/(loss)	$ 103,405	$ 94,994
Other comprehensive income/(loss), net of tax:
Net unrealized gains/(losses) on securities available-for-sale	48,615	(59,543)
Net unrealized gains/(losses) on cash flow hedges	5,387	(8,793)
Net unrealized gains/(losses) on pension and other postretirement plans	1,463	1,287
Other comprehensive income/(loss)	55,465	(67,049)
Comprehensive income/(loss)	158,870	27,945
Comprehensive income attributable to noncontrolling interest	2,820	2,820
Comprehensive income attributable to controlling interest	156,050	25,125
Income tax expense/(benefit) of items included in Other comprehensive income:
Net unrealized gains/(losses) on securities available-for-sale	15,958	(19,543)
Net unrealized gains/(losses) on cash flow hedges	1,768	(2,887)
Net unrealized gains/(losses) on pension and other postretirement plans	$ 480	$ 422

CONSOLIDATED CONDENSED STATEM_5

CONSOLIDATED CONDENSED STATEMENTS OF EQUITY - USD ($) shares in Thousands, $ in Thousands		Total	Preferred Stock	Common Stock	Capital Surplus	Undivided Profits	Accumulated Other Comprehensive Income/(Loss)		Noncontrolling Interest
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Adjustment to reflect adoption of ASU | Accounting Standards Update 2018-02						$ 57,546	$ (57,546)	[1]
Adjustment to reflect adoption of ASU | Accounting Standards Update 2016-01 and 2017-12							(211)
Balance, adjusted for ASU 2018-02		$ 4,580,488	$ 95,624	$ 204,211	$ 3,147,613	1,160,434	(322,825)	[1]	$ 295,431
Balance, beginning of period (in shares) at Dec. 31, 2017				326,736
Balance, beginning of period at Dec. 31, 2017		4,580,488	95,624	$ 204,211	3,147,613	1,102,888	(265,279)	[1]	295,431
Beginning balance, as adjusted at Dec. 31, 2017							(323,036)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income/(loss)		94,994				92,174			2,820
Other comprehensive income/(loss)		(67,049)					(67,049)	[1]
Comprehensive income/(loss)		27,945				92,174	(67,049)	[1]	2,820
Cash dividends declared:
Preferred stock		(1,550)				(1,550)
Common stock		(39,681)				(39,681)
Common stock repurchased (in shares)				(110)
Common stock repurchased (b)		(2,185)		$ (70)	(2,115)
Common stock issued for:
Stock options and restricted stock - equity awards (in shares)				569
Stock options and restricted stock - equity awards		4,376		$ 356	4,020
Acquisition equity adjustment (in shares)				(1)
Acquisition equity adjustment		(18)		$ (1)	(17)
Stock-based compensation expense		5,906			5,906
Dividends declared - noncontrolling interest of subsidiary preferred stock		(2,820)							(2,820)
Balance, end of period (in shares) at Mar. 31, 2018				327,194
Balance, end of period at Mar. 31, 2018		4,572,528	95,624	$ 204,496	3,155,407	1,211,655	(390,085)	[1]	295,431
Balance, beginning of period (in shares) at Dec. 31, 2018				318,573
Balance, beginning of period at Dec. 31, 2018		4,785,380	95,624	$ 199,108	3,029,425	1,542,408	(376,616)	[2]	295,431
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income/(loss)		103,405				100,585			2,820
Other comprehensive income/(loss)		55,465					55,465	[2]
Comprehensive income/(loss)		158,870				100,585	55,465	[2]	2,820
Cash dividends declared:
Preferred stock		(1,550)				(1,550)
Common stock		(44,864)				(44,864)
Common stock repurchased (in shares)	[3]			(3,594)
Common stock repurchased (b)	[3]	(53,436)		$ (2,246)	(51,190)
Common stock issued for:
Stock options and restricted stock - equity awards (in shares)				382
Stock options and restricted stock - equity awards		520		$ 239	281
Stock-based compensation expense		5,432			5,432
Dividends declared - noncontrolling interest of subsidiary preferred stock		(2,820)							(2,820)
Balance, end of period (in shares) at Mar. 31, 2019				315,361
Balance, end of period at Mar. 31, 2019		$ 4,846,521	$ 95,624	$ 197,101	$ 2,983,948	$ 1,595,568	$ (321,151)	[2]	$ 295,431
[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.
[2]	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.
[3]	Includes $51.5 million repurchased under share repurchase programs.

CONSOLIDATED CONDENSED STATEM_6

CONSOLIDATED CONDENSED STATEMENTS OF EQUITY (Parenthetical) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2019	Mar. 31, 2018
Statement of Stockholders' Equity [Abstract]
Preferred stock - cash dividends declared per share (in dollars per share)	$ 1,550	$ 1,550
Common stock - cash dividends declared per share (in dollars per share)	$ 0.14	$ 0.12
First Horizon Share Repurchase Program
Common stock repurchased under share repurchase program	$ 51.5

CONSOLIDATED CONDENSED STATEM_7

CONSOLIDATED CONDENSED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands		3 Months Ended
		Mar. 31, 2019	Mar. 31, 2018
Operating Activities
Net income/(loss)		$ 103,405	$ 94,994
Adjustments to reconcile net income/(loss) to net cash provided/(used) by operating activities:
Provision/(provision credit) for loan losses		9,000	(1,000)
Provision/(benefit) for deferred income taxes		7,238	20,309
Depreciation and amortization of premises and equipment		11,400	11,978
Amortization of intangible assets		6,217	6,474
Net other amortization and accretion		1,257	(1,613)
Net (increase)/decrease in derivatives		(51,821)	(14,549)
Fair value adjustment on interest-only strips		1,258	(1,592)
(Gains)/losses and write-downs on OREO, net		(290)	216
Litigation and regulatory matters		0	671
Stock-based compensation expense		5,432	5,906
Equity securities (gains)/losses, net		(31)	(34)
Debt securities (gains)/losses, net		0	(52)
Net (gains)/losses on sale/disposal of fixed assets		(42)	(3,202)
(Gain)/loss on BOLI		(1,032)	0
Loans held-for-sale:
Purchases and originations		(513,788)	(574,735)
Gross proceeds from settlements and sales		135,855	152,209
(Gain)/loss due to fair value adjustments and other		19,291	3,651
Net (increase)/decrease in:
Trading securities		192,101	(9,843)
Fixed income receivables		(7,921)	(25,343)
Interest receivable		(5,970)	(2,990)
Other assets		56,984	44,468
Net increase/(decrease) in:
Trading liabilities		94,289	188,847
Fixed income payables		90,718	(42,829)
Interest payable		16,570	10,030
Other liabilities		(47,631)	(66,349)
Total adjustments		19,084	(299,372)
Net cash provided/(used) by operating activities		122,489	(204,378)
Available-for-sale securities:
Sales		13,012	13,104
Maturities		157,502	152,800
Purchases		(83,512)	(159,951)
Premises and equipment:
Sales		4,080	2,619
Purchases		(6,995)	(18,020)
Proceeds from sales of OREO		3,791	10,527
Proceeds from BOLI		3,208	494
Net (increase)/decrease in:
Loans		(448,321)
Loans			418,174
Interests retained from securitizations classified as trading securities		148	241
Interest-bearing cash		264,357	876,249
Cash paid related to divestitures		0	(27,599)
Cash paid/(received) for acquisitions, net		0	(18)
Net cash provided/(used) by investing activities		(92,730)	1,268,620
Common stock:
Stock options exercised		520	4,327
Cash dividends paid		(38,759)	(21,353)
Repurchase of shares (a)	[1]	(53,436)	(2,184)
Cash dividends paid - preferred stock - noncontrolling interest		(2,883)	(2,883)
Cash dividends paid - Series A preferred stock		(1,550)	(1,550)
Term borrowings:
Payments/maturities		(1,179)	(2,625)
Increases in restricted and secured term borrowings		3,120	159
Net increase/(decrease) in:
Deposits		(220,104)	228,478
Short-term borrowings		92,057
Short-term borrowings			(1,285,626)
Net cash provided/(used) by financing activities		(222,214)	(1,083,257)
Net increase/(decrease) in cash and cash equivalents		(192,455)	(19,015)
Cash and cash equivalents at beginning of period		1,405,325	1,452,046
Cash and cash equivalents at end of period		1,212,870	1,433,031
Supplemental Disclosures
Total interest paid		88,774	51,418
Total taxes paid		1,008	4,066
Total taxes refunded		27,522	90
Transfer from loans to OREO		1,607	3,076
Transfer from loans HFS to trading securities		$ 425,808	$ 333,483
[1]	2019 includes $51.5 million repurchased under share repurchase programs.

CONSOLIDATED CONDENSED STATEM_8

CONSOLIDATED CONDENSED STATEMENTS OF CASH FLOWS (Parenthetical) $ in Thousands	3 Months Ended
	Mar. 31, 2019USD ($)
Repurchase of shares	$ 53,436	[1]
First Horizon Share Repurchase Program
Repurchase of shares	$ 51,500
[1]	2019 includes $51.5 million repurchased under share repurchase programs.

Financial Information

Financial Information	3 Months Ended
	Mar. 31, 2019
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Financial Information	Financial Information Basis of Accounting. The unaudited interim consolidated condensed financial statements of First Horizon National Corporation (“FHN”), including its subsidiaries, have been prepared in conformity with accounting principles generally accepted in the United States of America and follow general practices within the industries in which it operates. This preparation requires management to make estimates and assumptions that affect the amounts reported in the financial statements and accompanying notes. These estimates and assumptions are based on information available as of the date of the financial statements and could differ from actual results. In the opinion of management, all necessary adjustments have been made for a fair presentation of financial position and results of operations for the periods presented. These adjustments are of a normal recurring nature unless otherwise disclosed in this Quarterly Report on Form 10-Q. The operating results for the interim 2019 period are not necessarily indicative of the results that may be expected going forward. For further information, refer to the audited consolidated financial statements in Exhibit 13 to FHN’s Annual Report on Form 10-K for the year ended December 31, 2018. Revenues. Revenue is recognized when the performance obligations under the terms of a contract with a customer are satisfied in an amount that reflects the consideration FHN expects to be entitled. FHN derives a significant portion of its revenues from fee-based services. Noninterest income from transaction-based fees is generally recognized immediately upon completion of the transaction. Noninterest income from service-based fees is generally recognized over the period in which FHN provides the service. Any services performed over time generally require that FHN render services each period and therefore FHN measures progress in completing these services based upon the passage of time and recognizes revenue as invoiced. See Note 1– Summary of Significant Accounting Policies in the Notes to Consolidated Financial Statements on Form 10-K for the year ended December 31, 2018, for a discussion of FHN's key revenues. Contract Balances. As of March 31, 2019, accounts receivable related to products and services on non-interest income were $7.9 million . For the three months ended March 31, 2019, FHN had no material impairment losses on non-interest accounts receivable and there were no material contract assets, contract liabilities or deferred contract costs recorded on the Consolidated Condensed Statements of Condition as of March 31, 2019. Transaction Price Allocated to Remaining Performance Obligations. For the three months ended March 31, 2019, revenue recognized from performance obligations related to prior periods was not material. Revenue expected to be recognized in any future year related to remaining performance obligations, excluding revenue pertaining to contracts that have an original expected duration of one year or less and contracts where revenue is recognized as invoiced, is not material. Refer to Note 13– Business Segment Information for a reconciliation of disaggregated revenue by major product line and reportable segment. Leases. At inception, all arrangements are evaluated to determine if they contain a lease, which is defined as a contract, or part of a contract, that conveys the right to control the use of identified property, plant, or equipment for a period of time in exchange for consideration. Control is deemed to exist when a lessor has granted and a lessee has received both the right to obtain substantially all of the economic benefits from use of the identified asset and the right to direct the use of the identified asset throughout the period of use. Lessee. As a lessee, FHN recognizes lease (right-of-use) assets and lease liabilities for all leasing arrangements with lease terms that are greater than one year. The lease asset and lease liability are recognized at the present value of estimated future lease payments, including estimated renewal periods, with the discount rate reflecting a fully-collateralized rate matching the estimated lease term. Renewal options are included in the estimated lease term if they are considered reasonably certain of exercise. Periods covered by termination options are included in the lease term if it is reasonably certain they will not be exercised. Additionally, prepaid or accrued lease payments, lease incentives and initial direct costs related to lease arrangements are recognized within the right-of-use asset. Each lease is classified as a financing or operating lease which depends on the relationship of the lessee’s rights to the economic value of the leased asset. For finance leases, interest on the lease liability is recognized separately from amortization of the right-of-use asset in earnings, resulting in higher expense in the earlier portion of the lease term. For operating leases, a single lease cost is calculated so that the cost of the lease is allocated over the lease term on a generally straight-line basis. Substantially all of FHN’s lessee arrangements are classified as operating leases. For leases with a term of 12 months or less, FHN does not to recognize lease assets and lease liabilities and expense is generally recognized on a straight-line basis over the lease term. Lease assumptions and classification are reassessed upon the occurrence of events that result in changes to the estimated lease term or consideration. Modifications to lease contracts are evaluated to determine 1) if a right to use an additional asset has been obtained, 2) if only the lease term and/or consideration have been revised or 3) if a full or partial termination has occurred. If an additional right-of use-asset has been obtained, the modification is treated as a separate contract and its classification is evaluated as a new lease arrangement. If only the lease term or consideration are changed, the lease liability is revalued with an offset to the lease asset and the lease classification is re-assessed. If a modification results in a full or partial termination of the lease, the lease liability is revalued through earnings along with a proportionate reduction in the value of the related lease asset and subsequent expense recognition is similar to a new lease arrangement. Lease assets are evaluated for impairment when triggering events occur, such as a change in management intent regarding the continued occupation of the leased space. If a lease asset is impaired, it is written down to the present value of estimated future cash flows and the prospective expense recognition for that lease follows the accelerated expense recognition methodology applicable to finance leases, even if it remains classified as an operating lease. Sublease arrangements are accounted for consistent with the lessor accounting described below. Sublease arrangements are evaluated to determine if changes to estimates for the primary lease are warranted or if the sublease terms reflect impairment of the related lease asset. Lease assets are recognized in Other assets and lease liabilities are recognized in Other liabilities in the Consolidated Condensed Statements of Condition. Since substantially all of its leasing arrangements relate to real estate, FHN records lease expense, and any related sublease income, within Occupancy expense in the Consolidated Condensed Statements of Income. Lessor. As a lessor, FHN also evaluates its lease arrangements to determine whether a finance lease or an operating lease exists and utilizes the rate implicit in the lease arrangement as the discount rate to calculate the present value of future cash flows. Depending upon the terms of the individual agreements, finance leases represent either sales-type or direct financing leases, both of which require de-recognition of the asset being leased with offsetting recognition of a lease receivable that is evaluated for impairment similar to loans. Currently, all of FHN’s lessor arrangements are considered operating leases. Lease income for operating leases is recognized over the life of the lease, generally on a straight line basis. Lease incentives and initial direct costs are capitalized and amortized over the estimated life of the lease. Lease income is not significant for any reporting periods and is classified as a reduction of Occupancy expense in the Consolidated Condensed Statements of Income. Summary of Accounting Changes. In February 2016, the FASB issued ASU 2016-02, “Leases,” which requires a lessee to recognize in its statement of condition a liability to make lease payments (the lease liability) and a right-of-use asset representing its right to use the underlying asset for the lease term. ASU 2016-02 leaves lessor accounting largely unchanged from prior standards. For leases with a term of 12 months or less, a lessee is permitted to make an accounting policy election by class of underlying asset not to recognize lease assets and lease liabilities. If a lessee makes this election, it should recognize lease expense for such leases generally on a straight-line basis over the lease term. All other leases must be classified as financing or operating leases which depends on the relationship of the lessee’s rights to the economic value of the leased asset. For finance leases, interest on the lease liability is recognized separately from amortization of the right-of-use asset in earnings, resulting in higher expense in the earlier portion of the lease term. For operating leases, a single lease cost is calculated so that the cost of the lease is allocated over the lease term on a generally straight-line basis. In July 2018, the FASB issued ASU 2018-11, “Leases - Targeted Improvements,” which provides an election for a cumulative effect adjustment to retained earnings upon initial adoption of ASU 2016-02. Alternatively, under the initial guidance of ASU 2016-02, lessees and lessors are required to recognize and measure leases at the beginning of the earliest comparative period presented using a modified retrospective approach. Both adoption alternatives include a number of optional practical expedients that entities may elect to apply, which would result in continuing to account for leases that commence before the effective date in accordance with previous requirements (unless the lease is modified) except that lessees are required to recognize a right-of-use asset and a lease liability for all operating leases at each reporting date based on the present value of the remaining minimum rental payments that were tracked and disclosed under previous requirements. ASU 2016-02 also requires expanded qualitative and quantitative disclosures to assess the amount, timing, and uncertainty of cash flows arising from lease arrangements. ASU 2016-02 and ASU 2018-11 are effective for fiscal years beginning after December 15, 2018, including interim periods within those fiscal years. Upon adoption, FHN utilized the cumulative effect transition alternative provided by ASU 2018-11. FHN utilized the lease classification practical expedients and the short-term lease exemption upon adoption. FHN also has elected to determine the discount rate on leases as of the effective date and elected to use hindsight in determining lease terms as well as impairments of lease assets resulting from lease abandonments upon adoption. The table below summarizes the impact of adopting ASU 2016-02 as of January 1, 2019, for line items in the Consolidated Condensed Statements of Condition. Lease assets of approximately $185 million are included in Other Assets. Lease liabilities of approximately $204 million are included in Other Liabilities. The after-tax decrease in Undivided Profits reflects the recognition of deferred gains associated with prior sale-leaseback transactions, revisions to the estimated useful lives of leasehold improvements and adjustments of lease expense to reflect revised lease duration estimates. (Dollars in thousands) January 1, 2019 Loans, net of unearned income $ 3,450 Premises and equipment, net 2,718 Other assets 183,884 Other liabilities (191,010 ) Undivided profits 1,011 In August 2018, the FASB issued ASU 2018-15, “Customer’s Accounting for Implementation Costs Incurred in a Cloud Computing Arrangement That Is a Service Contract,” which aligns the requirements for capitalizing implementation costs incurred in a hosting arrangement that is a service contract with the requirements for capitalizing implementation costs incurred to develop or obtain internal-use software (and hosting arrangements that include an internal use software license). Capitalized implemented costs are required to be expensed over the term of the hosting arrangement which includes the non-cancellable period of the arrangement plus periods covered by (1) an option to extend the arrangement if the customer is reasonably certain to exercise that option, (2) an option to terminate the arrangement if the customer is reasonably certain not to exercise the termination option, and (3) an option to extend (or not to terminate) the arrangement in which exercise of the option is in the control of the vendor. ASU 2018-15 also requires application of the impairment guidance applicable to long-lived assets to the capitalized implementation costs. Amortization expense related to capitalized implementation costs must be presented in the same line item in the statement of income as the fees associated with the hosting element (service) of the arrangement and payments for capitalized implementation costs will be classified in the statement of cash flows in the same manner as payments made for fees associated with the hosting element. Capitalized implementation costs will be presented in the statement of financial position in the same line item that a prepayment for the fees of the associated hosting arrangement would be presented. ASU 2018-15 is effective for fiscal years beginning after December 15, 2019 with early adoption permitted. Adoption may be either fully retrospective or prospective only. FHN elected early adoption of ASU 2018-15 effective January 1, 2019 using the prospective transition method and the effects of adoption were not significant. Accounting Changes Issued but Not Currently Effective In April 2019, the FASB issued ASU 2019-04, “Codification Improvements to Topic 326, Financial Instruments-Credit Losses, Topic 815, Derivatives and Hedging, and Topic 825, Financial Instruments,” which makes several revisions and clarifications to the accounting for these items. The revisions related to ASU 2016-03 (Topic 326) are discussed below. ASU 2019-04 clarifies several aspects of fair hedge accounting, including the application to partial term fair value hedges. ASU 2019-04 provides an election regarding the timing for amortization of basis adjustments to hedged items in fair value hedges, indicating that amortization may, but is not required to, commence prior to the end of the hedge relationship. ASU 2019-04 also provides additional guidance related to the application of the hypothetical derivative method and first-payments-received method in cash flow hedges. Further, ASU 2019-04 indicates that remeasurement of an equity security without a readily determinable fair value when an orderly transaction is identified for an identical or similar investment of the same issuer represents a non-recurring fair value measurement and the related disclosure requirements apply to the remeasurement event. The hedging updates are effective at the beginning of the first annual reporting period after issuance with early adoption permitted. The financial instruments measurement and disclosure changes are effective for fiscal years and interim periods beginning after December 15, 2019 with early adoption permitted. FHN will early adopt these portions of ASU 2019-04 in second quarter 2019 and the effects will not be significant based on its existing accounting practices. In June 2016, the FASB issued ASU 2016-13, “Measurement of Credit Losses on Financial Instruments,” which revises the measurement and recognition of credit losses for assets measured at amortized cost (e.g., held-to-maturity (“HTM”) loans and debt securities) and available-for-sale (“AFS”) debt securities. Under ASU 2016-13, for assets measured at amortized cost, the current expected credit loss (“CECL”) is measured as the difference between amortized cost and the net amount expected to be collected. This represents a departure from existing GAAP as the “incurred loss” methodology for recognizing credit losses delays recognition until it is probable a loss has been incurred. Under CECL the full amount of expected credit losses will be recognized at the time of loan origination. The measurement of current expected credit losses is based on relevant information about past events, including historical experience, current conditions, and reasonable and supportable forecasts that affect the collectability of the reported amount. Additionally, current disclosures of credit quality indicators in relation to the amortized cost of financing receivables will be further disaggregated by year of origination. ASU 2016-13 leaves the methodology for measuring credit losses on AFS debt securities largely unchanged, with the maximum credit loss representing the difference between amortized cost and fair value. However, such credit losses will be recognized through an allowance for credit losses, which permits recovery of previously recognized credit losses if circumstances change. ASU 2016-13 also revises the recognition of credit losses for purchased financial assets with a more-than insignificant amount of credit deterioration since origination (“PCD assets”). For PCD assets, the initial allowance for credit losses is added to the purchase price. Only subsequent changes in the allowance for credit losses are recorded as a credit loss expense for PCD assets. Interest income for PCD assets will be recognized based on the effective interest rate, excluding the discount embedded in the purchase price that is attributable to the acquirer’s assessment of credit losses at acquisition. Currently, credit losses for purchased credit-impaired assets are included in the initial basis of the assets with subsequent declines in credit resulting in expense while subsequent improvements in credit are reflected as an increase in the future yield from the assets. For non-PCD assets, expected credit losses will be recognized through earnings upon acquisition and the entire premium of discount will be accreted to interest income over the remaining life of the loan. The provisions of ASU 2016-13 will be generally adopted through a cumulative-effect adjustment to retained earnings as of the beginning of the first reporting period in the year of adoption. Prospective implementation is required for debt securities for which an other-than-temporary-impairment (“OTTI”) had been previously recognized. Amounts previously recognized in accumulated other comprehensive income (“AOCI”) as of the date of adoption that relate to improvements in cash flows expected to be collected will continue to be accreted into income over the remaining life of the asset. Recoveries of amounts previously written off relating to improvements in cash flows after the date of adoption will be recorded in earnings when received. A prospective transition approach will be used for existing PCD assets where, upon adoption, the amortized cost basis will be adjusted to reflect the addition of the allowance for credit losses. Thus, an entity will not be required to reassess its purchased financial assets that exist as of the date of adoption to determine whether they would have met at acquisition the new criteria of more-than-insignificant credit deterioration since origination. An entity will accrete the remaining noncredit discount (based on the revised amortized cost basis) into interest income at the effective interest rate at the adoption date. ASU 2016-13 is effective for fiscal years beginning after December 15, 2019, including interim periods within those fiscal years. FHN continues to evaluate the impact of ASU 2016-13, and is not currently able to reasonably estimate the impact the adoption will have on its consolidated financial position, results of operations, or cash flows. Adoption of ASU 2016-13 is likely to lead to significant changes in accounting policies and procedures related to FHN’s ALLL, and it is possible that the impact of the adoption could be material to FHN’s consolidated financial position and results of operations. To date, the Company has completed a gap analysis, established a formal governance structure for the project, selected loss estimation methodologies for material portfolio segments, selected a software solution to serve as its CECL platform, and is engaged in model development activities. FHN intends to perform parallel calculations and analysis in the latter half of 2019. ASU 2019-04 provides an election to either not measure or measure separately an allowance for credit losses for accrued interest receivable (“AIR"). Entities electing to not measure an allowance for AIR must write off uncollectible interest in a timely manner. Additionally, an election is provided for the write off of uncollectible interest to be recorded either as a reversal of interest income or a charge against the allowance for credit losses or a combination of both. Disclosures are required depending upon which elections are made. ASU 2019-04 also clarifies that when loans and securities are transferred between balance sheet categories (e.g., loans from held-for-investment to held-for-sale or securities from held-to-maturity to available-for-sale) the associated allowance for credit losses should be reversed to income and prospective accounting follows the requirements for the new classification. Further, ASU 2019-04 clarifies that recoveries should be incorporated within the estimation of the allowance for credit losses. Expected recoveries should not exceed the aggregate amount of prior write offs and expected future write offs. Additionally, for collateral dependent financial assets, the allowance for credit losses that is added to the amortized cost basis should not exceed amounts previously written off. ASU 2019-04 also makes several changes when a discounted cash flow approach is used to measure expected credit losses. ASU 2019-04 removes ASU 2016-03’s prohibition of using projections of future interest rate environments when using a discounted cash flow method to measure expected credit losses on variable-rate financial instruments. If an entity uses projections or expectations of future interest rate environments in estimating expected cash flows, the same assumptions should be used in determining the effective interest rate used to discount those expected cash flows. The effective interest rate should also be adjusted to consider the effects of expected prepayments on the timing of expected future cash flows. ASU 2019-04 provides an election to adjust the effective interest rate used in discounting expected cash flows to isolate credit risk in measuring the allowance for credit losses. Further, the discount rate should not be adjusted for subsequent changes in expected prepayments if a financial asset is restructured in a troubled debt restructuring. Related to collateral-dependent financial assets, ASU 2019-04 requires inclusion of estimated costs to sell in the measurement of expected credit losses in situations where the entity intends to sell rather than operate the collateral. Additionally, the estimated costs to sell should be undiscounted when the entity intends to sell rather than operate the collateral. Finally, ASU 2019-04 specifies that contractual renewal or extension options, except those treated as derivatives, should be included in the determination of the contractual term for a financial asset when included in the original or modified contract as of the reporting date if they are not unconditionally cancellable by the entity. The effective date and transition requirements for these components of ASU 2019-04 are consistent with the requirements for ASU 2016-13 and FHN is incorporating these changes and revisions within its implementation efforts. Based on its current practices for the timely write off uncollectible AIR, FHN intends to not measure an allowance for credit losses for AIR and to continue recognition of related write offs as a reversal of interest income.

Acquisitions and Divestitures

Acquisitions and Divestitures	3 Months Ended
	Mar. 31, 2019
Business Combinations [Abstract]
Acquisitions and Divestitures	Acquisitions and Divestitures On November 30, 2017, FHN completed its acquisition of Capital Bank Financial Corporation ("CBF") and its subsidiaries, including Capital Bank Corporation for an aggregate of 92,042,232 shares of FHN common stock and $423.6 million in cash in a transaction valued at $2.2 billion . In second quarter 2018, FHN canceled 2,373,220 common shares which had been issued but set aside for certain shareholders of CBF who have commenced a dissenters' appraisal process resulting in a reduction in equity consideration and an increase in cash consideration of $46.0 million . The final appraisal or resolution amount, as applicable, may differ from current estimates. CBF operated 178 branches in North and South Carolina, Tennessee, Florida and Virginia at the time of closing. In relation to the acquisition, FHN acquired approximately $9.9 billion in assets, including approximately $7.3 billion in loans and $1.2 billion in AFS securities, and assumed approximately $8.1 billion of CBF deposits. FHN recorded goodwill of approximately $1.2 billion , representing the excess of acquisition consideration over the estimated fair value of net assets acquired. On March 23, 2018, FHN divested two branches, including approximately $30 million of deposits and $2 million of loans. The branches, both in Greeneville, Tennessee, were divested in connection with First Horizon's agreement with the U.S. Department of Justice and commitments to the Board of Governors of the Federal Reserve System, which were entered into in connection with a customary review of FHN's merger with CBF. In second quarter 2018, FHN sold approximately $120 million UPB of its subprime auto loans. These loans, originally acquired as part of the CBF acquisition, did not fit within FHN's risk profile. Based on the sales price, a measurement period adjustment to the acquisition-date fair value of the subprime auto loans was recorded in second quarter 2018. A measurement period adjustment was made in fourth quarter 2018 for other consumer loans acquired from CBF based on pricing information received from potential buyers. See Note 2- Acquisitions and Divestitures in the Notes to Consolidated Financial Statements on Form 10-K for the year ended December 31, 2018, for additional information about the CBF acquisition and other acquisitions. Expenses related to FHN's merger and integration activities are recorded in FHN's Corporate segment. Total merger and integration expense recognized for the three months ended March 31, 2019 and 2018 are presented in the table below: Three Months Ended March 31 (Dollars in thousands) 2019 2018 Professional fees (a) $ 1,867 $ 5,633 Employee compensation, incentives and benefits (b) 1,517 5,237 Contract employment and outsourcing (c) — 1,399 Miscellaneous expense (d) 1,187 2,064 All other expense (e) 1,089 17,041 Total $ 5,660 $ 31,374 (a) Primarily comprised of fees for legal, accounting, and merger consultants. (b) Primarily comprised of fees for severance and retention. (c) Primarily relates to fees for temporary assistance for merger and integration activities. (d) Consists of fees for communications and courier, operations services, equipment rentals, depreciation, and maintenance, supplies, travel and entertainment, computer software, advertising and public relations, and occupancy. (e) Primarily relates to contract termination charges, lease buyouts, costs of shareholder matters and asset impairments related to the integration, as well as other miscellaneous expenses. In addition to the transactions mentioned above, FHN acquires or divests assets from time to time in transactions that are considered business combinations or divestitures but are not material to FHN individually or in the aggregate. In April 2019, FHN sold Superior Financial Services, Inc., a subsidiary acquired as part of the CBF acquisition. The sale will result in the removal of approximately $25 million UPB of subprime consumer loans from Loans held-for-sale on FHN's Consolidated Condensed Statements of Condition.

Investment Securities

Investment Securities	3 Months Ended
	Mar. 31, 2019
Marketable Securities [Abstract]
Investment Securities	Investment Securities The following tables summarize FHN’s investment securities on March 31, 2019 and December 31, 2018 : March 31, 2019 (Dollars in thousands) Amortized Cost Gross Unrealized Gains Gross Unrealized Losses Fair Value Securities available-for-sale: U.S. treasuries $ 100 $ — $ (1 ) $ 99 Government agency issued mortgage-backed securities (“MBS”) 2,398,177 8,992 (21,360 ) 2,385,809 Government agency issued collateralized mortgage obligations (“CMO”) 1,958,529 2,020 (28,765 ) 1,931,784 Other U.S. government agencies 189,067 1,761 — 190,828 Corporates and other debt 55,266 302 (384 ) 55,184 States and municipalities 38,028 1,395 — 39,423 $ 4,639,167 $ 14,470 $ (50,510 ) 4,603,127 AFS debt securities recorded at fair value through earnings: SBA-interest only strips (a) 13,195 Total securities available-for-sale (b) $ 4,616,322 Securities held-to-maturity: Corporates and other debt $ 10,000 $ — $ (111 ) $ 9,889 Total securities held-to-maturity $ 10,000 $ — $ (111 ) $ 9,889 (a) SBA-interest only strips are recorded at elected fair value. See Note 17 - Fair Value for additional information. (b) Includes $3.9 billion of securities pledged to secure public deposits, securities sold under agreements to repurchase, and for other purposes. December 31, 2018 (Dollars in thousands) Amortized Cost Gross Unrealized Gains Gross Unrealized Losses Fair Value Securities available-for-sale: U.S. treasuries $ 100 $ — $ (2 ) $ 98 Government agency issued MBS 2,473,687 4,819 (58,400 ) 2,420,106 Government agency issued CMO 2,006,488 888 (48,681 ) 1,958,695 Other U.S. government agencies 149,050 809 (73 ) $ 149,786 Corporates and other debt 55,383 388 (461 ) 55,310 State and municipalities 32,473 314 (214 ) 32,573 $ 4,717,181 $ 7,218 $ (107,831 ) 4,616,568 AFS securities recorded at fair value through earnings: SBA-interest only strips (a) 9,902 Total securities available-for-sale (b) $ 4,626,470 Securities held-to-maturity: Corporates and other debt $ 10,000 $ — $ (157 ) $ 9,843 Total securities held-to-maturity $ 10,000 $ — $ (157 ) $ 9,843 (a) SBA-interest only strips are recorded at elected fair value. See Note 17 - Fair Value of Assets and Liabilities for additional information. (b) Includes $3.8 billion of securities pledged to secure public deposits, securities sold under agreements to repurchase, and for other purposes. The amortized cost and fair value by contractual maturity for the available-for-sale and held-to-maturity debt securities portfolios on March 31, 2019 are provided below: Held-to-Maturity Available-for-Sale (Dollars in thousands) Amortized Cost Fair Value Amortized Cost Fair Value Within 1 year $ — $ — $ 15,060 $ 14,998 After 1 year; within 5 years — — 229,373 231,160 After 5 years; within 10 years 10,000 9,889 755 3,825 After 10 years — — 37,273 48,746 Subtotal 10,000 9,889 282,461 298,729 Government agency issued MBS and CMO (a) — — 4,356,706 4,317,593 Total $ 10,000 $ 9,889 $ 4,639,167 $ 4,616,322 (a) Expected maturities will differ from contractual maturities because borrowers may have the right to call or prepay obligations with or without call or prepayment penalties. The table below provides information on gross gains and gross losses from debt investment securities for the three months ended March 31 , 2019 and 2018. Three Months Ended (Dollars in thousands) 2019 2018 Gross gains on sales of securities $ — $ 52 Gross (losses) on sales of securities — — Net gain/(loss) on sales of securities (a) $ — $ 52 (a) Cash proceeds for the three months ended March 31, 2018 were not material. The following tables provide information on investments within the available-for-sale portfolio that had unrealized losses as of March 31, 2019 and December 31, 2018 : As of March 31, 2019 Less than 12 months 12 months or longer Total (Dollars in thousands) Fair Value Unrealized Losses Fair Value Unrealized Losses Fair Value Unrealized Losses U.S. treasuries $ — $ — $ 99 $ (1 ) $ 99 $ (1 ) Government agency issued MBS 1,542 (13 ) 1,948,718 (21,347 ) 1,950,260 (21,360 ) Government agency issued CMO 863 — 1,699,529 (28,765 ) 1,700,392 (28,765 ) Corporates and other debt — — 40,065 (384 ) 40,065 (384 ) Total temporarily impaired securities $ 2,405 $ (13 ) $ 3,688,411 $ (50,497 ) $ 3,690,816 $ (50,510 ) As of December 31, 2018 Less than 12 months 12 months or longer Total (Dollars in thousands) Fair Value Unrealized Losses Fair Value Unrealized Losses Fair Value Unrealized Losses U.S. treasuries $ — $ — $ 98 $ (2 ) $ 98 $ (2 ) Government agency issued MBS 597,008 (12,335 ) 1,537,106 (46,065 ) 2,134,114 (58,400 ) Government agency issued CMO 290,863 (2,860 ) 1,560,420 (45,821 ) 1,851,283 (48,681 ) Other U.S. government agencies 29,776 (73 ) — — $ 29,776 $ (73 ) Corporates and other debt 25,114 (344 ) 15,008 (117 ) 40,122 (461 ) States and municipalities 17,292 (214 ) — — 17,292 (214 ) Total temporarily impaired securities $ 960,053 $ (15,826 ) $ 3,112,632 $ (92,005 ) $ 4,072,685 $ (107,831 ) FHN has reviewed debt investment securities that were in unrealized loss positions in accordance with its accounting policy for OTTI and does not consider them other-than-temporarily impaired. For debt securities with unrealized losses, FHN does not intend to sell them and it is more-likely-than-not that FHN will not be required to sell them prior to recovery. The decline in value is primarily attributable to changes in interest rates and not credit losses. The carrying amount of equity investments without a readily determinable fair value was $22.2 million and $21.3 million at March 31, 2019 and December 31, 2018, respectively. The year-to-date 2019 and 2018 gross amounts of upward and downward valuation adjustments were not significant. Unrealized gains of $3.4 million and $.3 million were recognized in the three months ended March 31, 2019 and 2018, respectively, for equity investments with readily determinable fair values.

Loans

Loans	3 Months Ended
	Mar. 31, 2019
Receivables [Abstract]
Loans	Loans The following table provides the balance of loans, net of unearned income, by portfolio segment as of March 31, 2019 and December 31, 2018 : March 31 December 31 (Dollars in thousands) 2019 2018 Commercial: Commercial, financial, and industrial $ 17,176,112 $ 16,514,328 Commercial real estate 3,946,943 4,030,870 Consumer: Consumer real estate (a) 6,151,503 6,249,516 Permanent mortgage 209,260 222,448 Credit card & other 506,230 518,370 Loans, net of unearned income $ 27,990,048 $ 27,535,532 Allowance for loan losses 184,911 180,424 Total net loans $ 27,805,137 $ 27,355,108 (a) Balances as of March 31, 2019 and December 31, 2018 , include $15.0 million and $16.2 million of restricted real estate loans, respectively. See Note 14—Variable Interest Entities for additional information. COMPONENTS OF THE LOAN PORTFOLIO The loan portfolio is disaggregated into segments and then further disaggregated into classes for certain disclosures. GAAP defines a portfolio segment as the level at which an entity develops and documents a systematic method for determining its allowance for credit losses. A class is generally determined based on the initial measurement attribute (i.e., amortized cost or purchased credit-impaired), risk characteristics of the loan, and FHN’s method for monitoring and assessing credit risk. Commercial loan portfolio segments include commercial, financial and industrial (“C&I”) and commercial real estate ("CRE"). Commercial classes within C&I include general C&I, loans to mortgage companies, the trust preferred loans (“TRUPS”) (i.e. long-term unsecured loans to bank and insurance-related businesses) portfolio and purchased credit-impaired (“PCI”) loans. Loans to mortgage companies include commercial lines of credit to qualified mortgage companies primarily for the temporary warehousing of eligible mortgage loans prior to the borrower’s sale of those mortgage loans to third party investors. Commercial classes within CRE include income CRE, residential CRE and PCI loans. Consumer loan portfolio segments include consumer real estate, permanent mortgage, and the credit card and other portfolio. Consumer classes include home equity lines of credit (“HELOCs”), real estate (“R/E”) installment and PCI loans within the consumer real estate segment, permanent mortgage (which is both a segment and a class), and credit card and other. Concentrations FHN has a concentration of residential real estate loans ( 23 percent of total loans), the majority of which is in the consumer real estate segment ( 22 percent of total loans). Loans to finance and insurance companies total $2.6 billion ( 15 percent of the C&I portfolio, or 9 percent of the total loans). FHN had loans to mortgage companies totaling $2.3 billion ( 13 percent of the C&I segment, or 8 percent of total loans) as of March 31, 2019 . As a result, 28 percent of the C&I segment is sensitive to impacts on the financial services industry. Purchased Credit-Impaired Loans The following table presents a rollforward of the accretable yield for the three months ended March 31, 2019 and 2018 : Three Months Ended (Dollars in thousands) 2019 2018 Balance, beginning of period $ 13,375 $ 15,623 Accretion (1,673 ) (2,137 ) Adjustment for payoffs (462 ) (612 ) Adjustment for charge-offs (176 ) (551 ) Increase/(decrease) in accretable yield (a) 2,718 3,178 Other — (178 ) Balance, end of period $ 13,782 $ 15,323 (a) Includes changes in the accretable yield due to both transfers from the nonaccretable difference and the impact of changes in the expected timing and amounts of the cash flows. At March 31, 2019 , the ALLL related to PCI loans was $3.4 million compared to $4.0 million at December 31, 2018 . A loan loss provision credit related to PCI loans of $.4 million was recognized during the three months ended March 31, 2019 , compared to a loan loss provision expense of $.8 million during the three months ended March 31, 2018 . The following table reflects the outstanding principal balance and carrying amounts of the acquired PCI loans as of March 31, 2019 and December 31, 2018 : March 31, 2019 December 31, 2018 (Dollars in thousands) Carrying value Unpaid balance Carrying value Unpaid balance Commercial, financial and industrial $ 34,619 $ 38,575 $ 38,873 $ 44,259 Commercial real estate 8,402 9,301 15,197 17,232 Consumer real estate 28,723 32,464 30,723 34,820 Credit card and other 1,127 1,377 1,627 1,879 Total $ 72,871 $ 81,717 $ 86,420 $ 98,190 Impaired Loans The following tables provide information at March 31, 2019 and December 31, 2018 , by class related to individually impaired loans and consumer TDRs, regardless of accrual status. Recorded investment is defined as the amount of the investment in a loan, excluding any valuation allowance but including any direct write-down of the investment. For purposes of this disclosure, PCI loans and the TRUPS valuation allowance have been excluded. March 31, 2019 December 31, 2018 (Dollars in thousands) Recorded Unpaid Related Recorded Unpaid Related Impaired loans with no related allowance recorded: Commercial: General C&I $ 68,629 $ 71,101 $ — $ 42,902 $ 45,387 $ — Income CRE 1,522 1,522 — 1,589 1,589 — Total $ 70,151 $ 72,623 $ — $ 44,491 $ 46,976 $ — Consumer: HELOC (a) $ 6,548 $ 13,869 $ — $ 8,645 $ 16,648 $ — R/E installment loans (a) 5,910 6,693 — 4,314 4,796 — Permanent mortgage (a) 3,449 5,851 — 3,601 6,003 — Total $ 15,907 $ 26,413 $ — $ 16,560 $ 27,447 $ — Impaired loans with related allowance recorded: Commercial: General C&I $ 11,786 $ 11,786 $ 2,512 $ 2,802 $ 2,802 $ 149 TRUPS 2,838 3,700 925 2,888 3,700 925 Income CRE 357 357 — 377 377 — Total $ 14,981 $ 15,843 $ 3,437 $ 6,067 $ 6,879 $ 1,074 Consumer: HELOC $ 63,546 $ 66,801 $ 8,378 $ 66,482 $ 69,610 $ 11,241 R/E installment loans 43,949 44,898 6,464 38,993 39,851 6,743 Permanent mortgage 65,930 76,289 9,081 67,245 78,010 9,419 Credit card & other 684 684 446 695 695 337 Total $ 174,109 $ 188,672 $ 24,369 $ 173,415 $ 188,166 $ 27,740 Total commercial $ 85,132 $ 88,466 $ 3,437 $ 50,558 $ 53,855 $ 1,074 Total consumer $ 190,016 $ 215,085 $ 24,369 $ 189,975 $ 215,613 $ 27,740 Total impaired loans $ 275,148 $ 303,551 $ 27,806 $ 240,533 $ 269,468 $ 28,814 (a) All discharged bankruptcy loans are charged down to an estimate of net realizable value and do not carry any allowance. Three Months Ended March 31 2019 2018 (Dollars in thousands) Average Interest Average Interest Impaired loans with no related allowance recorded: Commercial: General C&I $ 55,765 $ 180 $ 15,954 $ 175 Income CRE 1,556 13 791 12 Residential CRE — — 248 — Total $ 57,321 $ 193 $ 16,993 $ 187 Consumer: HELOC (a) $ 7,597 $ — $ 9,257 $ — R/E installment loans (a) 5,112 — 3,914 — Permanent mortgage (a) 3,525 — 5,217 — Total $ 16,234 $ — $ 18,388 $ — Impaired loans with related allowance recorded: Commercial: General C&I $ 7,294 $ — $ 22,891 $ — TRUPS 2,863 — 3,047 — Income CRE 367 4 806 — Residential CRE — — 398 — Total $ 10,524 $ 4 $ 27,142 $ — Consumer: HELOC $ 65,013 $ 522 $ 71,654 $ 577 R/E installment loans 41,471 270 42,110 267 Permanent mortgage 66,588 552 77,725 578 Credit card & other 690 5 648 3 Total $ 173,762 $ 1,349 $ 192,137 $ 1,425 Total commercial $ 67,845 $ 197 $ 44,135 $ 187 Total consumer $ 189,996 $ 1,349 $ 210,525 $ 1,425 Total impaired loans $ 257,841 $ 1,546 $ 254,660 $ 1,612 (a) All discharged bankruptcy loans are charged down to an estimate of net realizable value and do not carry any allowance. Asset Quality Indicators FHN employs a dual grade commercial risk grading methodology to assign an estimate for the probability of default (“PD”) and the loss given default (“LGD”) for each commercial loan using factors specific to various industry, portfolio, or product segments that result in a rank ordering of risk and the assignment of grades PD 1 to PD 16 . This credit grading system is intended to identify and measure the credit quality of the loan portfolio by analyzing the migration of loans between grading categories. It is also integral to the estimation methodology utilized in determining the allowance for loan losses since an allowance is established for pools of commercial loans based on the credit grade assigned. Each PD grade corresponds to an estimated one-year default probability percentage; a PD 1 has the lowest expected default probability, and probabilities increase as grades progress down the scale. PD 1 through PD 12 are “pass” grades. PD grades 13 - 16 correspond to the regulatory-defined categories of special mention ( 13 ), substandard ( 14 ), doubtful ( 15 ), and loss ( 16 ). Pass loan grades are required to be reassessed annually or earlier whenever there has been a material change in the financial condition of the borrower or risk characteristics of the relationship. All commercial loans over $1 million and certain commercial loans over $500,000 that are graded 13 or worse are reassessed on a quarterly basis. Loan grading discipline is regularly reviewed internally by Credit Assurance Services to determine if the process continues to result in accurate loan grading across the portfolio. FHN may utilize availability of guarantors/sponsors to support lending decisions during the credit underwriting process and when determining the assignment of internal loan grades. LGD grades are assigned based on a scale of 1 - 12 and represent FHN’s expected recovery based on collateral type in the event a loan defaults. See Note 5 – Allowance for Loan Losses for further discussion on the credit grading system. The following tables provide the balances of commercial loan portfolio classes with associated allowance, disaggregated by PD grade as of March 31, 2019 and December 31, 2018 : March 31, 2019 (Dollars in thousands) General C&I Loans to Mortgage Companies TRUPS (a) Income CRE Residential CRE Total Percentage of Total Allowance for Loan Losses PD Grade: 1 $ 635,273 $ — $ — $ 11,997 $ — $ 647,270 3 % $ 100 2 849,658 — — 2,144 26 851,828 4 267 3 720,323 689,936 3,314 291,517 179 1,705,269 8 338 4 1,201,020 478,359 32,498 513,082 112 2,225,071 11 806 5 1,904,650 347,923 96,052 855,280 20,311 3,224,216 15 10,033 6 1,992,100 400,889 33,815 636,472 44,286 3,107,562 15 9,700 7 2,794,923 94,626 11,446 544,211 30,322 3,475,528 17 18,677 8 1,344,591 172,050 — 280,323 24,944 1,821,908 9 20,047 9 1,460,633 104,832 45,117 377,027 17,672 2,005,281 9 16,042 10 492,043 12,579 18,536 73,040 3,924 600,122 3 8,739 11 395,393 — — 63,318 2,112 460,823 2 10,353 12 289,203 146 — 48,454 5,586 343,389 2 6,172 13 223,362 — 5,786 51,615 238 281,001 1 9,652 14,15,16 204,958 — — 37,703 832 243,493 1 21,591 Collectively evaluated for impairment 14,508,130 2,301,340 246,564 3,786,183 150,544 20,992,761 100 132,517 Individually evaluated for impairment 80,415 — 2,838 1,879 — 85,132 — 3,437 Purchased credit-impaired loans 36,825 — — 6,043 2,294 45,162 — 2,141 Total commercial loans $ 14,625,370 $ 2,301,340 $ 249,402 $ 3,794,105 $ 152,838 $ 21,123,055 100 % $ 138,095 December 31, 2018 (Dollars in thousands) General C&I Loans to Mortgage Companies TRUPS (a) Income CRE Residential CRE Total Percentage of Total Allowance for Loan Losses PD Grade: 1 $ 610,177 $ — $ — $ 12,586 $ — $ 622,763 3 % $ 100 2 835,776 — — 1,688 29 837,493 4 274 3 782,362 716,971 — 289,594 147 1,789,074 9 315 4 1,223,092 394,862 43,220 563,243 — 2,224,417 11 686 5 1,920,034 277,814 77,751 798,509 14,150 3,088,258 15 8,919 6 1,722,136 365,341 45,609 657,628 33,759 2,824,473 14 8,141 7 2,690,784 96,603 11,446 538,909 26,135 3,363,877 16 16,906 8 1,337,113 53,224 — 265,901 20,320 1,676,558 8 18,545 9 1,472,852 96,292 45,117 455,184 29,849 2,099,294 10 15,454 10 490,795 13,260 18,536 60,803 3,911 587,305 3 8,675 11 311,967 — — 66,986 788 379,741 2 7,973 12 244,867 9,379 — 82,574 5,717 342,537 2 6,972 13 285,987 — 5,786 55,408 251 347,432 2 10,094 14,15,16 224,853 — — 28,835 837 254,525 1 23,307 Collectively evaluated for impairment 14,152,795 2,023,746 247,465 3,877,848 135,893 20,437,747 100 126,361 Individually evaluated for impairment 45,704 — 2,888 1,966 — 50,558 — 1,074 Purchased credit-impaired loans 41,730 — — 12,730 2,433 56,893 — 2,823 Total commercial loans $ 14,240,229 $ 2,023,746 $ 250,353 $ 3,892,544 $ 138,326 $ 20,545,198 100 % $ 130,258 (a) Balances as of March 31, 2019 and December 31, 2018 , presented net of a $20.2 million valuation allowance. The consumer portfolio is comprised primarily of smaller-balance loans which are very similar in nature in that most are standard products and are backed by residential real estate. Because of the similarities of consumer loan-types, FHN is able to utilize the Fair Isaac Corporation (“FICO”) score, among other attributes, to assess the credit quality of consumer borrowers. FICO scores are refreshed on a quarterly basis in an attempt to reflect the recent risk profile of the borrowers. Accruing delinquency amounts are indicators of asset quality within the credit card and other consumer portfolio. The following table reflects the percentage of balances outstanding by average, refreshed FICO scores for the HELOC, real estate installment, and permanent mortgage classes of loans as of March 31, 2019 and December 31, 2018 : March 31, 2019 December 31, 2018 HELOC R/E Installment Loans Permanent Mortgage HELOC R/E Installment Loans Permanent Mortgage FICO score 740 or greater 61.0 % 72.2 % 52.0 % 61.4 % 71.3 % 51.8 % FICO score 720-739 8.8 8.3 8.3 8.5 8.8 7.6 FICO score 700-719 7.8 6.9 9.9 7.6 7.0 10.6 FICO score 660-699 10.9 7.2 14.8 10.9 7.6 14.7 FICO score 620-659 5.0 2.7 7.0 5.1 2.8 6.5 FICO score less than 620 (a) 6.5 2.7 8.0 6.5 2.5 8.8 Total 100.0 % 100.0 % 100.0 % 100.0 % 100.0 % 100.0 % (a) For this group, a majority of the loan balances had FICO scores at the time of the origination that exceeded 620 but have since deteriorated as the loans have seasoned. Nonaccrual and Past Due Loans The following table reflects accruing and non-accruing loans by class on March 31, 2019 : Accruing Non-Accruing (Dollars in thousands) Current 30-89 Days Past Due 90+ Days Past Due Total Accruing Current 30-89 Days Past Due 90+ Days Past Due Total Non- Accruing Total Loans Commercial (C&I): General C&I $ 14,508,455 $ 7,741 $ 191 $ 14,516,387 $ 61,711 $ 147 $ 10,300 $ 72,158 $ 14,588,545 Loans to mortgage companies 2,301,340 — — 2,301,340 — — — — 2,301,340 TRUPS (a) 246,564 — — 246,564 — — 2,838 2,838 249,402 Purchased credit-impaired loans 33,056 2,210 1,559 36,825 — — — — 36,825 Total commercial (C&I) 17,089,415 9,951 1,750 17,101,116 61,711 147 13,138 74,996 17,176,112 Commercial real estate: Income CRE 3,785,127 292 — 3,785,419 — 45 2,598 2,643 3,788,062 Residential CRE 150,300 238 — 150,538 — 6 — 6 150,544 Purchased credit-impaired loans 7,448 818 71 8,337 — — — — 8,337 Total commercial real estate 3,942,875 1,348 71 3,944,294 — 51 2,598 2,649 3,946,943 Consumer real estate: HELOC 1,380,487 9,735 7,321 1,397,543 48,772 4,223 8,370 61,365 1,458,908 R/E installment loans 4,623,499 10,037 7,982 4,641,518 15,151 2,685 3,395 21,231 4,662,749 Purchased credit-impaired loans 24,480 1,628 3,738 29,846 — — — — 29,846 Total consumer real estate 6,028,466 21,400 19,041 6,068,907 63,923 6,908 11,765 82,596 6,151,503 Permanent mortgage 184,237 1,494 2,579 188,310 11,874 95 8,981 20,950 209,260 Credit card & other: Credit card 193,754 992 969 195,715 — — — — 195,715 Other 305,267 3,067 473 308,807 155 67 211 433 309,240 Purchased credit-impaired loans 717 325 233 1,275 — — — — 1,275 Total credit card & other 499,738 4,384 1,675 505,797 155 67 211 433 506,230 Total loans, net of unearned income $ 27,744,731 $ 38,577 $ 25,116 $ 27,808,424 $ 137,663 $ 7,268 $ 36,693 $ 181,624 $ 27,990,048 (a) TRUPS is presented net of the valuation allowance of $20.2 million . The following table reflects accruing and non-accruing loans by class on December 31, 2018 : Accruing Non-Accruing (Dollars in thousands) Current 30-89 Days Past Due 90+ Days Past Due Total Accruing Current 30-89 Days Past Due 90+ Days Past Due Total Non- Accruing Total Loans Commercial (C&I): General C&I $ 14,153,275 $ 8,234 $ 102 $ 14,161,611 $ 26,325 $ 5,537 $ 5,026 $ 36,888 $ 14,198,499 Loans to mortgage companies 2,023,746 — — 2,023,746 — — — — 2,023,746 TRUPS (a) 247,465 — — 247,465 — — 2,888 2,888 250,353 Purchased credit-impaired loans 39,433 624 1,673 41,730 — — — — 41,730 Total commercial (C&I) 16,463,919 8,858 1,775 16,474,552 26,325 5,537 7,914 39,776 16,514,328 Commercial real estate: Income CRE 3,876,229 626 — 3,876,855 30 — 2,929 2,959 3,879,814 Residential CRE 135,861 — — 135,861 32 — — 32 135,893 Purchased credit-impaired loans 13,308 103 1,752 15,163 — — — — 15,163 Total commercial real estate 4,025,398 729 1,752 4,027,879 62 — 2,929 2,991 4,030,870 Consumer real estate: HELOC 1,443,651 11,653 10,129 1,465,433 49,009 3,314 8,781 61,104 1,526,537 R/E installment loans 4,652,658 10,470 6,497 4,669,625 15,146 1,924 4,474 21,544 4,691,169 Purchased credit-impaired loans 24,096 2,094 5,620 31,810 — — — — 31,810 Total consumer real estate 6,120,405 24,217 22,246 6,166,868 64,155 5,238 13,255 82,648 6,249,516 Permanent mortgage 193,591 2,585 4,562 200,738 11,227 996 9,487 21,710 222,448 Credit card & other: Credit card 188,009 2,133 1,203 191,345 — — — — 191,345 Other 320,551 3,570 526 324,647 110 60 454 624 325,271 Purchased credit-impaired loans 746 611 397 1,754 — — — — 1,754 Total credit card & other 509,306 6,314 2,126 517,746 110 60 454 624 518,370 Total loans, net of unearned income $ 27,312,619 $ 42,703 $ 32,461 $ 27,387,783 $ 101,879 $ 11,831 $ 34,039 $ 147,749 $ 27,535,532 Certain previously reported amounts have been reclassified to agree with current presentation. (a) TRUPS is presented net of the valuation allowance of $20.2 million . Troubled Debt Restructurings As part of FHN’s ongoing risk management practices, FHN attempts to work with borrowers when necessary to extend or modify loan terms to better align with their current ability to repay. Extensions and modifications to loans are made in accordance with internal policies and guidelines which conform to regulatory guidance. Each occurrence is unique to the borrower and is evaluated separately. A modification is classified as a TDR if the borrower is experiencing financial difficulty and it is determined that FHN has granted a concession to the borrower. FHN may determine that a borrower is experiencing financial difficulty if the borrower is currently in default on any of its debt, or if it is probable that a borrower may default in the foreseeable future. Many aspects of a borrower’s financial situation are assessed when determining whether they are experiencing financial difficulty. Concessions could include extension of the maturity date, reductions of the interest rate (which may make the rate lower than current market for a new loan with similar risk), reduction or forgiveness of accrued interest, or principal forgiveness. The assessments of whether a borrower is experiencing (or is likely to experience) financial difficulty, and whether a concession has been granted, are subjective in nature and management’s judgment is required when determining whether a modification is classified as a TDR. For all classes within the commercial portfolio segment, TDRs are typically modified through forbearance agreements (generally 6 to 12 months ). Forbearance agreements could include reduced interest rates, reduced payments, release of guarantor, or entering into short sale agreements. FHN’s proprietary modification programs for consumer loans are generally structured using parameters of U.S. government-sponsored programs such as the former Home Affordable Modification Program (“HAMP”). Within the HELOC and R/E installment loans classes of the consumer portfolio segment, TDRs are typically modified by reducing the interest rate (in increments of 25 basis points to a minimum of 1 percent for up to 5 years ) and a possible maturity date extension to reach an affordable housing debt-to-income ratio. After 5 years , the interest rate generally returns to the original interest rate prior to modification; for certain modifications, the modified interest rate increases 2 percent per year until the original interest rate prior to modification is achieved. Permanent mortgage TDRs are typically modified by reducing the interest rate (in increments of 25 basis points to a minimum of 2 percent for up to 5 years ) and a possible maturity date extension to reach an affordable housing debt-to-income ratio. After 5 years , the interest rate steps up 1 percent every year until it reaches the Federal Home Loan Mortgage Corporation Weekly Survey Rate cap. Contractual maturities may be extended to 40 years on permanent mortgages and to 30 years for consumer real estate loans. Within the credit card class of the consumer portfolio segment, TDRs are typically modified through either a short-term credit card hardship program or a longer-term credit card workout program. In the credit card hardship program, borrowers may be granted rate and payment reductions for 6 months to 1 year . In the credit card workout program, customers are granted a rate reduction to 0 percent and term extensions for up to 5 years to pay off the remaining balance. Despite the absence of a loan modification, the discharge of personal liability through bankruptcy proceedings is considered a concession. As a result, FHN classifies all non-reaffirmed residential real estate loans discharged in Chapter 7 bankruptcy as nonaccruing TDRs. On March 31, 2019 and December 31, 2018 , FHN had $241.6 million and $228.2 million of portfolio loans classified as TDRs, respectively. For TDRs in the loan portfolio, FHN had loan loss reserves of $24.4 million , or 10 percent as of March 31, 2019 , and $27.7 million , or 12 percent as of December 31, 2018 . Additionally, $55.4 million and $57.8 million of loans held-for-sale as of March 31, 2019 and December 31, 2018 , respectively, were classified as TDRs. The following tables reflect portfolio loans that were classified as TDRs during the three months ended March 31, 2019 and 2018 : March 31, 2019 March 31, 2018 (Dollars in thousands) Number Pre-Modification Outstanding Recorded Investment Post-Modification Outstanding Recorded Investment Number Pre-Modification Outstanding Recorded Investment Post-Modification Outstanding Recorded Investment Commercial (C&I): General C&I 2 $ 13,895 $ 13,820 5 $ 1,504 $ 1,214 Total commercial (C&I) 2 13,895 13,820 5 1,504 1,214 Consumer real estate: HELOC 19 2,104 2,084 30 2,760 2,733 R/E installment loans 44 5,977 5,934 5 611 612 Total consumer real estate 63 8,081 8,018 35 3,371 3,345 Permanent mortgage 3 1,448 1,479 1 275 273 Credit card & other 15 74 71 41 210 197 Total troubled debt restructurings 83 $ 23,498 $ 23,388 82 $ 5,360 $ 5,029 The following tables present TDRs which re-defaulted during the three months ended March 31, 2019 and 2018 , and as to which the modification occurred 12 months or less prior to the re-default. For purposes of this disclosure, FHN generally defines payment default as 30 or more days past due. March 31, 2019 March 31, 2018 (Dollars in thousands) Number Recorded Investment Number Recorded Investment Consumer real estate: HELOC 1 33 2 69 Total consumer real estate 1 33 2 69 Permanent mortgage — — 1 112 Credit card & other 8 18 14 81 Total troubled debt restructurings 9 $ 51 17 $ 262

Allowance for Loan Losses

Allowance for Loan Losses	3 Months Ended
	Mar. 31, 2019
Accounts, Notes, Loans and Financing Receivable, Gross, Allowance, and Net [Abstract]
Allowance for Loan Losses	Allowance for Loan Losses The ALLL includes the following components: reserves for commercial loans evaluated based on pools of credit graded loans and reserves for pools of smaller-balance homogeneous consumer loans, both determined in accordance with ASC 450-20-50. The reserve factors applied to these pools are an estimate of probable incurred losses based on management’s evaluation of historical net losses from loans with similar characteristics and are subject to qualitative adjustments by management to reflect current events, trends, and conditions (including economic considerations and trends). The current economic conditions and trends, performance of the housing market, unemployment levels, labor participation rate, regulatory guidance, and both positive and negative portfolio segment-specific trends, are examples of additional factors considered by management in determining the ALLL. Additionally, management considers the inherent uncertainty of quantitative models that are driven by historical loss data. Management evaluates the periods of historical losses that are the basis for the loss rates used in the quantitative models and selects historical loss periods that are believed to be the most reflective of losses inherent in the loan portfolio as of the balance sheet date. Management also periodically reviews analysis of the loss emergence period which is the amount of time it takes for a loss to be confirmed (initial charge-off) after a loss event has occurred. FHN performs extensive studies as it relates to the historical loss periods used in the model and the loss emergence period and model assumptions are adjusted accordingly. The ALLL also includes reserves determined in accordance with ASC 310-10-35 for loans determined by management to be individually impaired and an allowance associated with PCI loans. See Note 1 – Summary of Significant Accounting Policies and Note 5 - Allowance for Loan Losses in the Notes to Consolidated Financial Statements on FHN’s Form 10-K for the year ended December 31, 2018 , for additional information about the policies and methodologies used in the aforementioned components of the ALLL. The following table provides a rollforward of the allowance for loan losses by portfolio segment for the three months ended March 31, 2019 and 2018 : (Dollars in thousands) C&I Commercial Real Estate Consumer Real Estate Permanent Mortgage Credit Card and Other Total Balance as of January 1, 2019 $ 98,947 $ 31,311 $ 26,439 $ 11,000 $ 12,727 $ 180,424 Charge-offs (3,101 ) (434 ) (2,800 ) (4 ) (4,188 ) (10,527 ) Recoveries 829 57 3,453 588 1,087 6,014 Provision/(provision credit) for loan losses 7,038 3,448 (3,019 ) (1,503 ) 3,036 9,000 Balance as of March 31, 2019 103,713 34,382 24,073 10,081 12,662 184,911 Allowance - individually evaluated for impairment 3,437 — 14,842 9,081 446 27,806 Allowance - collectively evaluated for impairment 98,135 34,382 8,108 1,000 12,067 153,692 Allowance - purchased credit-impaired loans 2,141 — 1,123 — 149 3,413 Loans, net of unearned as of March 31, 2019: Individually evaluated for impairment 83,253 1,879 119,953 69,379 684 275,148 Collectively evaluated for impairment 17,056,034 3,936,727 6,001,704 139,881 504,271 27,638,617 Purchased credit-impaired loans 36,825 8,337 29,846 — 1,275 76,283 Total loans, net of unearned income $ 17,176,112 $ 3,946,943 $ 6,151,503 $ 209,260 $ 506,230 $ 27,990,048 Balance as of January 1, 2018 $ 98,211 $ 28,427 $ 39,823 $ 13,113 $ 9,981 $ 189,555 Charge-offs (2,075 ) (44 ) (1,911 ) (160 ) (4,293 ) (8,483 ) Recoveries 1,519 6 4,383 65 1,149 7,122 Provision/(provision credit) for loan losses 2,583 668 (7,094 ) (34 ) 2,877 (1,000 ) Balance as of March 31, 2018 100,238 29,057 35,201 12,984 9,714 187,194 Allowance - individually evaluated for impairment 4,555 — 23,049 11,311 359 39,274 Allowance - collectively evaluated for impairment 93,603 28,869 11,877 1,673 9,343 145,365 Allowance - purchased credit-impaired loans 2,080 188 275 — 12 2,555 Loans, net of unearned as of March 31, 2018: Individually evaluated for impairment 40,758 2,077 124,975 81,090 702 249,602 Collectively evaluated for impairment 15,705,895 4,201,220 6,194,449 189,631 556,189 26,847,384 Purchased credit-impaired loans 81,655 31,138 36,095 — 3,919 152,807 Total loans, net of unearned income $ 15,828,308 $ 4,234,435 $ 6,355,519 $ 270,721 $ 560,810 $ 27,249,793 Certain previously reported amounts have been reclassified to agree with current presentation.

Intangible Assets

Intangible Assets	3 Months Ended
	Mar. 31, 2019
Goodwill and Intangible Assets Disclosure [Abstract]
Intangible Assets	Intangible Assets The following is a summary of other intangible assets included in the Consolidated Condensed Statements of Condition: March 31, 2019 December 31, 2018 (Dollars in thousands) Gross Carrying Amount Accumulated Amortization Net Carrying Value Gross Carrying Amount Accumulated Amortization Net Carrying Value Core deposit intangibles $ 157,150 $ (32,955 ) $ 124,195 $ 157,150 $ (28,150 ) $ 129,000 Customer relationships 77,865 (56,744 ) 21,121 77,865 (55,597 ) 22,268 Other (a) 5,622 (2,120 ) 3,502 5,622 (1,856 ) 3,766 Total $ 240,637 $ (91,819 ) $ 148,818 $ 240,637 $ (85,603 ) $ 155,034 (a) Balance primarily includes noncompete covenants, as well as $ .3 million related to state banking licenses not subject to amortization. Amortization expense was $6.2 million and $6.5 million for the three months ended March 31, 2019 and 2018 , respectively. As of March 31, 2019 the estimated aggregated amortization expense is expected to be: (Dollars in thousands) Year Amortization Remainder of 2019 $ 18,625 2020 21,159 2021 19,547 2022 17,412 2023 16,117 2024 14,679 Gross goodwill, accumulated impairments, and accumulated divestiture related write-offs were determined beginning January 1, 2012, when a change in accounting requirements resulted in goodwill being assessed for impairment rather than being amortized. Gross goodwill of $200.0 million with accumulated impairments and accumulated divestiture-related write-offs of $114.1 million and $85.9 million , respectively, were previously allocated to the non-strategic segment, resulting in $0 net goodwill allocated to the non-strategic segment as of March 31, 2019 and December 31, 2018 . The regional banking and fixed income segments do not have any accumulated impairments or divestiture related write-offs. The following is a summary of goodwill by reportable segment included in the Consolidated Condensed Statements of Condition as of March 31, 2019 and December 31, 2018 . (Dollars in thousands) Regional Banking Fixed Income Total December 31, 2017 $ 1,243,885 $ 142,968 $ 1,386,853 Additions (a) 11,648 — 11,648 March 31, 2018 $ 1,255,533 $ 142,968 $ 1,398,501 December 31, 2018 $ 1,289,819 $ 142,968 $ 1,432,787 Additions — — — March 31, 2019 $ 1,289,819 $ 142,968 $ 1,432,787 (a) See Note 2 - Acquisitions and Divestitures for further details regarding goodwill related to acquisitions.

Leases

Leases	3 Months Ended
	Mar. 31, 2019
Leases [Abstract]
Leases	Leases FHN has operating, financing, and short-term leases for branch locations, corporate offices and certain equipment. Substantially all of these leases are classified as operating leases. The following table provides a detail of the classification of FHN's right-of-use ("ROU") assets and lease liabilities included in the Consolidated Condensed Statement of Conditions. (Dollars in thousands) March 31, 2019 Lease Right-of-Use Assets: Classification Operating lease right-of use assets Other assets $ 179,028 Finance lease right-of use assets Other assets 682 Total Lease Right-of Use Assets $ 179,710 Lease Liabilities: Operating lease liabilities Other liabilities $ 198,091 Finance lease liabilities Other liabilities 1,344 Total Lease Liabilities $ 199,435 The calculated amount of the ROU assets and lease liabilities in the table above are impacted by the length of the lease term and the discount rate used to present value the minimum lease payments. The following table details the weighted average remaining lease term and discount rate for FHN's operating and finance leases as of March 31, 2019. Weighted Average Remaining Lease Terms Operating leases 12.38 years Finance leases 7.17 years Weighted Average Discount Rate Operating leases 3.48 % Finance leases 9.96 % The following table provides a detail of the components of lease expense and other lease information for the three months ended March 31, 2019: (Dollars in thousands) Three Months Ended Lease cost Operating lease cost $ 6,183 Finance lease cost: Amortization of right-of-use assets 24 Interest on lease liabilities 33 Short-term lease cost 45 Sublease income (95 ) Total lease cost $ 6,190 Other information (Gain)/loss on right-of-use asset impairment-Operating leases $ 817 Cash paid for amounts included in the measurement of lease liabilities: Operating cash flows from operating leases 5,302 Operating cash flows from finance leases 33 Financing cash flows from finance leases 31 Right-of-use assets obtained in exchange for new lease obligations: Operating leases 2,442 Finance leases — The following table provides a detail of the maturities of FHN's operating and finance lease liabilities as of March 31, 2019: (Dollars in thousands) March 31, 2019 Remainder of 2019 $ 18,489 2020 23,911 2021 21,630 2022 20,535 2023 19,627 2024 and after 143,048 Total future minimum lease payments 247,240 Less lease liability interest (47,805 ) Present value of net future minimum lease payments $ 199,435 FHN had aggregate undiscounted contractual obligations totaling $22.1 million for lease arrangements that have not commenced. Payments under these arrangements are expected to occur from 2019 through 2032. Minimum future lease payments for noncancelable operating leases, primarily on premises, on December 31, 2018 are shown below. (Dollars in thousands) December 31, 2018 2019 $ 27,524 2020 24,722 2021 20,954 2022 16,518 2023 13,174 2024 and after 42,370 Total minimum lease payments $ 145,262
Leases	Leases FHN has operating, financing, and short-term leases for branch locations, corporate offices and certain equipment. Substantially all of these leases are classified as operating leases. The following table provides a detail of the classification of FHN's right-of-use ("ROU") assets and lease liabilities included in the Consolidated Condensed Statement of Conditions. (Dollars in thousands) March 31, 2019 Lease Right-of-Use Assets: Classification Operating lease right-of use assets Other assets $ 179,028 Finance lease right-of use assets Other assets 682 Total Lease Right-of Use Assets $ 179,710 Lease Liabilities: Operating lease liabilities Other liabilities $ 198,091 Finance lease liabilities Other liabilities 1,344 Total Lease Liabilities $ 199,435 The calculated amount of the ROU assets and lease liabilities in the table above are impacted by the length of the lease term and the discount rate used to present value the minimum lease payments. The following table details the weighted average remaining lease term and discount rate for FHN's operating and finance leases as of March 31, 2019. Weighted Average Remaining Lease Terms Operating leases 12.38 years Finance leases 7.17 years Weighted Average Discount Rate Operating leases 3.48 % Finance leases 9.96 % The following table provides a detail of the components of lease expense and other lease information for the three months ended March 31, 2019: (Dollars in thousands) Three Months Ended Lease cost Operating lease cost $ 6,183 Finance lease cost: Amortization of right-of-use assets 24 Interest on lease liabilities 33 Short-term lease cost 45 Sublease income (95 ) Total lease cost $ 6,190 Other information (Gain)/loss on right-of-use asset impairment-Operating leases $ 817 Cash paid for amounts included in the measurement of lease liabilities: Operating cash flows from operating leases 5,302 Operating cash flows from finance leases 33 Financing cash flows from finance leases 31 Right-of-use assets obtained in exchange for new lease obligations: Operating leases 2,442 Finance leases — The following table provides a detail of the maturities of FHN's operating and finance lease liabilities as of March 31, 2019: (Dollars in thousands) March 31, 2019 Remainder of 2019 $ 18,489 2020 23,911 2021 21,630 2022 20,535 2023 19,627 2024 and after 143,048 Total future minimum lease payments 247,240 Less lease liability interest (47,805 ) Present value of net future minimum lease payments $ 199,435 FHN had aggregate undiscounted contractual obligations totaling $22.1 million for lease arrangements that have not commenced. Payments under these arrangements are expected to occur from 2019 through 2032. Minimum future lease payments for noncancelable operating leases, primarily on premises, on December 31, 2018 are shown below. (Dollars in thousands) December 31, 2018 2019 $ 27,524 2020 24,722 2021 20,954 2022 16,518 2023 13,174 2024 and after 42,370 Total minimum lease payments $ 145,262

Other Income And Other Expense

Other Income And Other Expense	3 Months Ended
	Mar. 31, 2019
Other Nonoperating Income (Expense) [Abstract]
Other Income And Other Expense	Other Income and Other Expense Following is detail of All other income and commissions and All other expense as presented in the Consolidated Condensed Statements of Income: Three Months Ended (Dollars in thousands) 2019 2018 All other income and commissions: Deferred compensation (a) $ 5,474 $ 451 Other service charges 3,869 4,123 ATM and interchange fees 3,241 3,267 Dividend income 2,313 2,249 Mortgage banking 1,886 2,546 Letter of credit fees 1,368 1,249 Electronic banking fees 1,271 1,204 Insurance commissions 624 757 Gain/(loss) on extinguishment of debt (1 ) — Other 5,523 7,397 Total $ 25,568 $ 23,243 All other expense: Travel and entertainment $ 2,712 $ 2,983 Other insurance and taxes 2,694 2,665 Supplies 1,804 1,836 Customer relations 1,599 1,063 Employee training and dues 1,457 1,779 Miscellaneous loan costs 1,027 1,142 Tax credit investments 675 1,137 Non-service components of net periodic pension and post-retirement cost 432 504 Litigation and regulatory matters 13 2,134 OREO (366 ) 108 Other 7,739 19,981 Total $ 19,786 $ 35,332 Certain previously reported amounts have been reclassified to agree with current presentation. (a) Amounts are driven by market conditions and are mirrored by changes in deferred compensation expense which is included in employee compensation expense.

Components of Other Comprehensi

Components of Other Comprehensive Income/(Loss)	3 Months Ended
	Mar. 31, 2019
Other Comprehensive Income (Loss), Net of Tax [Abstract]
Components of Other Comprehensive Income/(Loss)	Components of Other Comprehensive Income/(loss) The following table provides the changes in accumulated other comprehensive income/(loss) by component, net of tax, for the three months ended March 31, 2019 and 2018 : (Dollars in thousands) Securities AFS Cash Flow Pension and Total Balance as of January 1, 2019 $ (75,736 ) $ (12,112 ) $ (288,768 ) $ (376,616 ) Net unrealized gains/(losses) 48,615 3,936 — 52,551 Amounts reclassified from AOCI — 1,451 1,463 2,914 Other comprehensive income/(loss) 48,615 5,387 1,463 55,465 Balance as of March 31, 2019 $ (27,121 ) $ (6,725 ) $ (287,305 ) $ (321,151 ) Balance as of January 1, 2018 $ (26,834 ) $ (7,764 ) $ (288,227 ) $ (322,825 ) Adjustment to reflect adoption of ASU 2016-01 and ASU 2017-12 (5 ) (206 ) — (211 ) Beginning balance, as adjusted $ (26,839 ) $ (7,970 ) $ (288,227 ) $ (323,036 ) Net unrealized gains/(losses) (59,504 ) (8,638 ) — (68,142 ) Amounts reclassified from AOCI (39 ) (155 ) 1,287 1,093 Other comprehensive income/(loss) (59,543 ) (8,793 ) 1,287 (67,049 ) Balance as of March 31, 2018 $ (86,382 ) $ (16,763 ) $ (286,940 ) $ (390,085 ) Reclassifications from AOCI, and related tax effects, were as follows: (Dollars in thousands) Three Months Ended Details about AOCI 2019 2018 Affected line item in the statement where net income is presented Securities AFS: Realized (gains)/losses on securities AFS $ — $ (52 ) Debt securities gains/(losses), net Tax expense/(benefit) — 13 Provision/(benefit) for income taxes — (39 ) Cash flow hedges: Realized (gains)/losses on cash flow hedges 1,927 (206 ) Interest and fees on loans Tax expense/(benefit) (476 ) 51 Provision/(benefit) for income taxes 1,451 (155 ) Pension and Postretirement Plans: Amortization of prior service cost and net actuarial gain/(loss) 1,943 1,709 All other expense Tax expense/(benefit) (480 ) (422 ) Provision/(benefit) for income taxes 1,463 1,287 Total reclassification from AOCI $ 2,914 $ 1,093

Earnings Per Share

Earnings Per Share	3 Months Ended
	Mar. 31, 2019
Earnings Per Share [Abstract]
Earnings Per Share	Earnings Per Share The following table provides reconciliations of net income to net income available to common shareholders and the difference between average basic common shares outstanding and average diluted common shares outstanding: Three Months Ended (Dollars and shares in thousands, except per share data) 2019 2018 Net income/(loss) $ 103,405 $ 94,994 Net income attributable to noncontrolling interest 2,820 2,820 Net income/(loss) attributable to controlling interest 100,585 92,174 Preferred stock dividends 1,550 1,550 Net income/(loss) available to common shareholders $ 99,035 $ 90,624 Weighted average common shares outstanding—basic 317,435 326,489 Effect of dilutive securities 2,146 3,855 Weighted average common shares outstanding—diluted 319,581 330,344 Net income/(loss) per share available to common shareholders $ 0.31 $ 0.28 Diluted income/(loss) per share available to common shareholders $ 0.31 $ 0.27 The following table presents outstanding options and other equity awards that were excluded from the calculation of diluted earnings per share because they were either anti-dilutive (the exercise price was higher than the weighted-average market price for the period) or the performance conditions have not been met: Three Months Ended (Shares in thousands) 2019 2018 Stock options excluded from the calculation of diluted EPS 2,613 2,410 Weighted average exercise price of stock options excluded from the calculation of diluted EPS $ 21.77 $ 24.83 Other equity awards excluded from the calculation of diluted EPS 1,922 307

Contingencies And Other Disclos

Contingencies And Other Disclosures	3 Months Ended
	Mar. 31, 2019
Commitments and Contingencies Disclosure [Abstract]
Contingencies and Other Disclosures	Contingencies and Other Disclosures CONTINGENCIES Contingent Liabilities Overview Contingent liabilities arise in the ordinary course of business. Often they are related to lawsuits, arbitration, mediation, and other forms of litigation. Various litigation matters are threatened or pending against FHN and its subsidiaries. Also, FHN at times receives requests for information, subpoenas, or other inquiries from federal, state, and local regulators, from other government authorities, and from other parties concerning various matters relating to FHN’s current or former businesses. Certain matters of that sort are pending at this time, and FHN is cooperating in those matters. Pending and threatened litigation matters sometimes are settled by the parties, and sometimes pending matters are resolved in court or before an arbitrator. Regardless of the manner of resolution, frequently the most significant changes in status of a matter occur over a short time period, often following a lengthy period of little substantive activity. In view of the inherent difficulty of predicting the outcome of these matters, particularly where the claimants seek very large or indeterminate damages, or where the cases present novel legal theories or involve a large number of parties, or where claims or other actions may be possible but have not been brought, FHN cannot reasonably determine what the eventual outcome of the matters will be, what the timing of the ultimate resolution of these matters may be, or what the eventual loss or impact related to each matter may be. FHN establishes a loss contingency liability for a litigation matter when loss is both probable and reasonably estimable as prescribed by applicable financial accounting guidance. If loss for a matter is probable and a range of possible loss outcomes is the best estimate available, accounting guidance requires a liability to be established at the low end of the range. Based on current knowledge, and after consultation with counsel, management is of the opinion that loss contingencies related to threatened or pending litigation matters should not have a material adverse effect on the consolidated financial condition of FHN, but may be material to FHN’s operating results for any particular reporting period depending, in part, on the results from that period. Material Loss Contingency Matters Summary As used in this Note, except for matters that are reported as having been substantially settled or otherwise substantially resolved, FHN's “material loss contingency matters” generally fall into at least one of the following categories: (i) FHN has determined material loss to be probable and has established a material loss liability in accordance with applicable financial accounting guidance; (ii) FHN has determined material loss to be probable but is not reasonably able to estimate an amount or range of material loss liability; or (iii) FHN has determined that material loss is not probable but is reasonably possible, and that the amount or range of that reasonably possible material loss is estimable. As defined in applicable accounting guidance, loss is reasonably possible if there is more than a remote chance of a material loss outcome for FHN. Set forth below are disclosures for certain pending or threatened litigation matters, including all matters mentioned in (i) or (ii) and certain matters mentioned in (iii). In addition, certain other matters, or groups of matters, are discussed relating to FHN’s former mortgage origination and servicing businesses. In all litigation matters discussed, unless settled or otherwise resolved, FHN believes it has meritorious defenses and intends to pursue those defenses vigorously. FHN reassesses the liability for litigation matters each quarter as the matters progress. At March 31, 2019, the aggregate amount of liabilities established for all such loss contingency matters was $32.9 million . These liabilities are separate from those discussed under the heading “Loan Repurchase and Foreclosure Liability” below. In each material loss contingency matter, except as otherwise noted, there is more than a remote chance that any of the following outcomes will occur: the plaintiff will substantially prevail; the defense will substantially prevail; the plaintiff will prevail in part; or the matter will be settled by the parties. At March 31, 2019, FHN estimates that for all material loss contingency matters, estimable reasonably possible losses in future periods in excess of currently established liabilities could aggregate in a range from zero to approximately $20 million . As a result of the general uncertainties discussed above and the specific uncertainties discussed for each matter mentioned below, it is possible that the ultimate future loss experienced by FHN for any particular matter may materially exceed the amount, if any, of currently established liability for that matter. That possibility exists both for matters included in the estimated reasonably possible loss (“RPL”) range mentioned above and for matters not included in that range. Material Matters FHN is defending a suit claiming material deficiencies in the offering documents under which certificates relating to First Horizon branded proprietary securitizations were sold under FHN's former (pre-2009) mortgage business: Federal Deposit Insurance Corporation (“FDIC”) as receiver for Colonial Bank, in the U.S. District Court for the Southern District of New York (Case No. 12 Civ. 6166 (LLS)(MHD)). The plaintiff in that suit claims to have purchased (and later sold) certificates totaling $83.4 million , relating to a number of separate securitizations. Plaintiff demands damages and prejudgment interest, among several remedies sought. The current liability and RPL estimates for this matter are subject to significant uncertainties regarding: the dollar amounts claimed; the potential remedies that might be available or awarded; the outcome of settlement discussions; the availability of significantly dispositive defenses; and the incomplete status of the discovery process. Other Former Mortgage Business Exposures FHN has received indemnity claims from underwriters and others related to lawsuits as to which investors or others claimed to have purchased certificates in FHN proprietary securitizations but as to which FHN was not named a defendant. For most pending indemnity claims involving proprietary securitizations, FHN is unable to estimate an RPL range due to significant uncertainties regarding: claims as to which the claimant specifies no dollar amount; the potential remedies that might be available or awarded; the availability of significantly dispositive defenses such as statutes of limitations or repose; the outcome of potentially dispositive early-stage motions such as motions to dismiss; the incomplete status of the discovery process; the lack of a precise statement of damages; inability to identify specific loans and/or breaches that are the source of the claim; lack of specific grounds to trigger FHN's indemnity obligation; and lack of precedent claims. The alleged purchase prices of the certificates subject to pending indemnification claims, excluding the FDIC-Colonial Bank matter mentioned above, total $231.2 million . FHN is contending with indemnification claims related to "other whole loans sold," which were mortgage loans originated by FHN before 2009 and sold outside of an FHN securitization. These claims generally assert that FHN-originated loans contributed to claimant’s losses in connection with settlements that claimant paid to various third parties in connection with mortgage loans securitized by claimant. The claims generally do not include specific deficiencies for specific loans sold by FHN. Instead, the claims generally assert that FHN is liable for a share of the claimant's loss estimated by assessing the totality of the other whole loans sold by FHN to claimant in relation to the totality of the larger number of loans securitized by claimant. FHN is unable to estimate an RPL range for these matters due to significant uncertainties regarding: the number of, and the facts underlying, the loan originations which claimants assert are indemnifiable; the applicability of FHN’s contractual indemnity covenants to those facts and originations; and, in those cases where an indemnity claim may be supported, whether any legal defenses, counterclaims, other counter-positions, or third-party claims might eliminate or reduce claims against FHN or their impact on FHN. FHN also has indemnification claims related to servicing obligations. The most significant is from Nationstar Mortgage LLC, currently doing business as “Mr. Cooper.” Nationstar was the purchaser of FHN’s mortgage servicing obligations and assets in 2013 and 2014 and, starting in 2011, was FHN’s subservicer. Nationstar asserts several categories of indemnity obligations in connection with mortgage loans under the subservicing arrangement and under the purchase transaction. This matter currently is not in litigation, but litigation in the future is possible. FHN is unable to estimate an RPL range for this matter due to significant uncertainties regarding: the exact nature of each of Nationstar’s claims and its position in respect of each; the number of, and the facts underlying, the claimed instances of indemnifiable events; the applicability of FHN’s contractual indemnity covenants to those facts and events; and, in those cases where the facts and events might support an indemnity claim, whether any legal defenses, counterclaims, other counter-positions, or third-party claims might eliminate or reduce claims against FHN or their impact on FHN. FHN has additional potential exposures related to its former mortgage businesses. A few of those matters have become litigation which FHN currently estimates are immaterial, some are non-litigation claims or threats, some are mere subpoenas or other requests for information, and in some areas FHN has no indication of any active or threatened dispute. Some of those matters might eventually result in settlements, and some might eventually result in adverse litigation outcomes, but none are included in the material loss contingency liabilities mentioned above or in the RPL range mentioned above. Mortgage Loan Repurchase and Foreclosure Liability The repurchase and foreclosure liability is comprised of accruals to cover estimated loss content in the active pipeline (consisting of mortgage loan repurchase, make-whole, foreclosure/servicing demands and certain related exposures), estimated future inflows, and estimated loss content related to certain known claims not currently included in the active pipeline. FHN compares the estimated probable incurred losses determined under the applicable loss estimation approaches for the respective periods with current reserve levels. Changes in the estimated required liability levels are recorded as necessary through the repurchase and foreclosure provision. Based on currently available information and experience to date, FHN has evaluated its loan repurchase, make-whole, foreclosure, and certain related exposures and has accrued for losses of $31.9 million and $32.3 million as of March 31, 2019 and December 31, 2018, respectively, including a smaller amount related to equity-lending junior lien loan sales. A $12.6 million settlement payment was made in second quarter 2019 that will reduce the accrual. Accrued liabilities for FHN’s estimate of these obligations are reflected in Other liabilities on the Consolidated Condensed Statements of Condition. Charges/expense reversals to increase/decrease the liability are included within Repurchase and foreclosure provision/(provision credit) on the Consolidated Condensed Statements of Income. The estimates are based upon currently available information and fact patterns that exist as of each balance sheet date and could be subject to future changes. Changes to any one of these factors could significantly impact the estimate of FHN’s liability. OTHER DISCLOSURES Indemnification Agreements and Guarantees In the ordinary course of business, FHN enters into indemnification agreements for legal proceedings against its directors and officers and standard representations and warranties for underwriting agreements, merger and acquisition agreements, loan sales, contractual commitments, and various other business transactions or arrangements. The extent of FHN’s obligations under these agreements depends upon the occurrence of future events; therefore, it is not possible to estimate a maximum potential amount of payouts that could be required by such agreements.

Pension, Savings, And Other Emp

Pension, Savings, And Other Employee Benefits	3 Months Ended
	Mar. 31, 2019
Retirement Benefits, Description [Abstract]
Pension, Savings, and Other Employee Benefits	Pension, Savings, and Other Employee Benefits Pension plan. FHN sponsors a noncontributory, qualified defined benefit pension plan to employees hired or re-hired on or before September 1, 2007. Pension benefits are based on years of service, average compensation near retirement or other termination, and estimated social security benefits at age 65 . Benefits under the plan are “frozen” so that years of service and compensation changes after 2012 do not affect the benefit owed. Minimum contributions are based upon actuarially determined amounts necessary to fund the total benefit obligation. Decisions to contribute to the plan are based upon pension funding requirements under the Pension Protection Act, the maximum amount deductible under the Internal Revenue Code, the actual performance of plan assets, and trends in the regulatory environment. FHN made an insignificant contribution to the qualified pension plan in 2018. Management does not currently anticipate that FHN will make a contribution to the qualified pension plan in 2019. FHN assumed two additional qualified plans in conjunction with the CBF acquisition. Both legacy CBF plans are frozen. As of December 31, 2018, the aggregate benefit obligation for the plans was $17.1 million and aggregate plan assets were $16.5 million . Benefit payments, expense and actuarial gains/losses related to these plans were insignificant for first quarter 2019 and 2018. Additional funding amounts to these plans are dependent upon the potential settlement of the plans. Due to the insignificant financial statement impact, these two plans are not included in the disclosures that follow. FHN also maintains non-qualified plans including a supplemental retirement plan that covers certain employees whose benefits under the qualified pension plan have been limited by tax rules. These other non-qualified plans are unfunded, and contributions to these plans cover all benefits paid under the non-qualified plans. Payments made under the non-qualified plans were $5.8 million for 2018 . FHN anticipates making benefit payments under the non-qualified plans of $5.2 million in 2019 . Savings plan. FHN provides all qualifying full-time employees with the opportunity to participate in FHN's tax qualifi ed 401(k) savings plan. The qualified plan allows employees to defer receipt of earned salary, up to tax law limits, on a tax- advantaged basis. Accounts, which are held in trust, may be invested in a wide range of mutual funds and in FHN common stock. Up to tax law limits, FHN provides a 100 percent match for the first 6 percent of salary deferred, with company matching contributions invested according to a participant’s current investment election. Through a non-qualified savings restoration plan, FHN provides a restorative benefit to certain highly-compensated employees who participate in the savings plan and whose contribution elections are capped by tax limitations. Other employee benefits. FHN provides postretirement life insurance benefits to certain employees and also provides postretirement medical insurance benefits to retirement-eligible employees. The postretirement medical plan is contributory with FHN contributing a fixed amount for certain participants. FHN’s postretirement benefits include certain prescription drug benefits. Service cost is included in Employee compensation, incentives, and benefits in the Consolidated Condensed Statements of Income. All other components of net periodic benefit cost are included in All other expense. The components of net periodic benefit cost for the three months ended March 31 are as follows: Pension Benefits Other Benefits (Dollars in thousands) 2019 2018 2019 2018 Components of net periodic benefit cost Service cost $ 8 $ 10 $ 24 $ 33 Interest cost 7,575 6,986 351 327 Expected return on plan assets (9,173 ) (8,225 ) (269 ) (269 ) Amortization of unrecognized: Actuarial (gain)/loss 2,435 2,956 (117 ) (91 ) Net periodic benefit cost/(credit) $ 845 $ 1,727 $ (11 ) $ —

Business Segment Information

Business Segment Information	3 Months Ended
	Mar. 31, 2019
Segment Reporting, Measurement Disclosures [Abstract]
Business Segment Information	Business Segment Information FHN has four business segments: regional banking, fixed income, corporate, and non-strategic. The regional banking segment offers financial products and services, including traditional lending and deposit taking, to consumer and commercial customers in Tennessee, North Carolina, South Carolina, Florida and other selected markets. Regional banking also provides investments, wealth management, financial planning, trust services and asset management, mortgage banking, credit card, and cash management. Additionally, the regional banking segment includes correspondent banking which provides credit, depository, and other banking related services to other financial institutions nationally. The fixed income segment consists of fixed income securities sales, trading, underwriting, and strategies for institutional clients in the U.S. and abroad, as well as loan sales, portfolio advisory services, and derivative sales. The corporate segment consists of unallocated corporate expenses, expense on subordinated debt issuances, bank-owned life insurance, unallocated interest income associated with excess equity, net impact of raising incremental capital, revenue and expense associated with deferred compensation plans, funds management, tax credit investment activities, derivative valuation adjustments related to prior sales of Visa Class B shares, gain/(loss) on extinguishment of debt, acquisition-and integration-related costs and various charges related to restructuring, repositioning, and efficiency efforts. The non-strategic segment consists of run-off consumer lending activities, legacy (pre-2009) mortgage banking elements, and the associated ancillary revenues and expenses related to these businesses. Non-strategic also includes the wind-down trust preferred loan portfolio and exited businesses. Periodically, FHN adapts its segments to reflect managerial or strategic changes. FHN may also modify its methodology of allocating expenses and equity among segments which could change historical segment results. Business segment revenue, expense, asset, and equity levels reflect those which are specifically identifiable or which are allocated based on an internal allocation method. Because the allocations are based on internally developed assignments and allocations, to an extent they are subjective. Generally, all assignments and allocations have been consistently applied for all periods presented. The following table reflects the amounts of consolidated revenue, expense, tax, and average assets for each segment for the three months ended March 31 : Three Months Ended (Dollars in thousands) 2019 2018 Consolidated Net interest income $ 294,508 $ 301,173 Provision/(provision credit) for loan losses 9,000 (1,000 ) Noninterest income 141,045 136,017 Noninterest expense 296,090 313,265 Income/(loss) before income taxes 130,463 124,925 Provision/(benefit) for income taxes 27,058 29,931 Net income/(loss) $ 103,405 $ 94,994 Average assets $ 40,883,192 $ 40,350,724 Three Months Ended (Dollars in thousands) 2019 2018 Regional Banking Net interest income $ 287,157 $ 293,194 Provision/(provision credit) for loan losses 13,958 4,458 Noninterest income 72,117 79,963 Noninterest expense 199,959 201,749 Income/(loss) before income taxes 145,357 166,950 Provision/(benefit) for income taxes 33,693 39,340 Net income/(loss) $ 111,664 $ 127,610 Average assets $ 28,889,492 $ 28,171,416 Fixed Income Net interest income $ 7,322 $ 8,475 Noninterest income 53,807 45,605 Noninterest expense 51,227 49,931 Income/(loss) before income taxes 9,902 4,149 Provision/(benefit) for income taxes 2,283 896 Net income/(loss) $ 7,619 $ 3,253 Average assets $ 2,849,939 $ 3,479,425 Corporate Net interest income/(expense) $ (7,853 ) $ (16,184 ) Noninterest income 13,352 9,316 Noninterest expense 40,351 53,329 Income/(loss) before income taxes (34,852 ) (60,197 ) Provision/(benefit) for income taxes (11,403 ) (13,771 ) Net income/(loss) $ (23,449 ) $ (46,426 ) Average assets $ 8,050,162 $ 7,115,661 Non-Strategic Net interest income $ 7,882 $ 15,688 Provision/(provision credit) for loan losses (4,958 ) (5,458 ) Noninterest income 1,769 1,133 Noninterest expense 4,553 8,256 Income/(loss) before income taxes 10,056 14,023 Provision/(benefit) for income taxes 2,485 3,466 Net income/(loss) $ 7,571 $ 10,557 Average assets $ 1,093,599 $ 1,584,222 Certain previously reported amounts have been reclassified to agree with current presentation. The following tables reflect a disaggregation of FHN’s noninterest income by major product line and reportable segment for the three months ended March 31, 2019 and 2018 : Three months ended March 31, 2019 (Dollars in thousands) Regional Banking Fixed Income Corporate Non-Strategic Consolidated Noninterest income: Fixed income (a) $ 17 $ 53,732 $ — $ — $ 53,749 Deposit transactions and cash management 30,005 3 1,563 50 31,621 Brokerage, management fees and commissions 12,629 — — 4 12,633 Trust services and investment management 7,056 — (30 ) — 7,026 Bankcard income 6,102 — 62 (149 ) 6,015 BOLI (b) — — 4,402 — 4,402 Debt securities gains/(losses), net (b) — — — — — Equity securities gains/(losses), net (b) — — 31 — 31 All other income and commissions (c) 16,308 72 7,324 1,864 25,568 Total noninterest income $ 72,117 $ 53,807 $ 13,352 $ 1,769 $ 141,045 (a) Includes $7.3 million of underwriting, portfolio advisory, and other noninterest income in scope of Accounting Standards Codification ("ASC") 606, "Revenue From Contracts With Customers." (b) Represents noninterest income excluded from the scope of ASC 606. Amount is presented for informational purposes to reconcile total non-interest income. (c) Includes other service charges, ATM and interchange fees, electronic banking fees, and insurance commission in scope of ASC 606. Three months ended March 31, 2018 (Dollars in thousands) Regional Banking Fixed Income Corporate Non- Strategic Consolidated Noninterest income: Fixed income (a) $ 81 $ 45,425 $ — $ — $ 45,506 Deposit transactions and cash management 34,722 3 1,209 50 35,984 Brokerage, management fees and commissions 13,483 — — — 13,483 Trust services and investment management 7,292 — (15 ) — 7,277 Bankcard income 6,279 — 56 110 6,445 BOLI (b) — — 3,993 — 3,993 Debt securities gains/(losses), net (b) — — 52 — 52 Equity securities gains/(losses), net (b) — — 34 — 34 All other income and commissions (c) (d) 18,106 177 3,987 973 23,243 Total noninterest income $ 79,963 $ 45,605 $ 9,316 $ 1,133 $ 136,017 Certain previously reported amounts have been reclassified to agree with current presentation. (a) Includes $8.2 million of underwriting, portfolio advisory, and other noninterest income in scope of Accounting Standards Codification ("ASC") 606, "Revenue From Contracts With Customers." (b) Represents noninterest income excluded from the scope of ASC 606. Amount is presented for informational purposes to reconcile total non-interest income. (c) Includes other service charges, ATM and interchange fees, electronic banking fees, and insurance commission in scope of ASC 606. (d) Corporate includes a $3.3 million gain on the sale of a building.

Variable Interest Entities

Variable Interest Entities	3 Months Ended
	Mar. 31, 2019
Variable Interest Entities [Abstract]
Variable Interest Entities	Variable Interest Entities ASC 810 defines a VIE as a legal entity where (a) the equity investors, as a group, lack sufficient equity at risk for the entity to finance its activities without additional subordinated financial support, (b) the equity investors, as a group, lack either, (1) the power through voting rights, or similar rights, to direct the activities of an entity that most significantly impact the entity’s economic performance, (2) the obligation to absorb the expected losses of the entity, or (3) the right to receive the expected residual returns of the entity, or (c) the entity is structured with non-substantive voting rights. A variable interest is a contractual ownership or other interest that fluctuates with changes in the fair value of the VIE’s net assets exclusive of variable interests. Under ASC 810, as amended, a primary beneficiary is required to consolidate a VIE when it has a variable interest in a VIE that provides it with a controlling financial interest. For such purposes, the determination of whether a controlling financial interest exists is based on whether a single party has both the power to direct the activities of the VIE that most significantly impact the VIE’s economic performance and the obligation to absorb losses of the VIE or the right to receive benefits from the VIE that could potentially be significant. Consolidated Variable Interest Entities FHN holds variable interests in a proprietary HELOC securitization trust it established as a source of liquidity for consumer lending operations. Based on its restrictive nature, the trust is considered a VIE as the holders of equity at risk do not have the power through voting rights or similar rights to direct the activities that most significantly impact the trust’s economic performance. The retention of mortgage service rights ("MSR") and a residual interest results in FHN potentially absorbing losses or receiving benefits that are significant to the trust. FHN is considered the primary beneficiary, as it is assumed to have the power, as Master Servicer, to most significantly impact the activities of the VIE. Consolidation of the trust results in the recognition of the trust proceeds as restricted borrowings since the cash flows on the securitized loans can only be used to settle the obligations due to the holders of trust securities. Through first quarter 2016 the trust experienced a rapid amortization period and FHN was obligated to provide subordinated funding. During the period, cash payments from borrowers were accumulated to repay outstanding debt securities while FHN continued to make advances to borrowers when they drew on their lines of credit. FHN then transferred the newly generated receivables into the securitization trust. FHN is reimbursed for these advances only after other parties in the securitization have received all of the cash flows to which they are entitled. If loan losses requiring draws on the related monoline insurers’ policies (which protect bondholders in the securitization) exceed a certain level, FHN may not receive reimbursement for all of the funds advanced to borrowers, as the senior bondholders and the monoline insurers typically have priority for repayment. Amounts funded from monoline insurance policies are considered restricted term borrowings in FHN’s Consolidated Condensed Statements of Condition. Except for recourse due to breaches of representations and warranties made by FHN in connection with the sale of the loans to the trust, the creditors of the trust hold no recourse to the assets of FHN. FHN has established certain rabbi trusts related to deferred compensation plans offered to its employees. FHN contributes employee cash compensation deferrals to the trusts and directs the underlying investments made by the trusts. The assets of these trusts are available to FHN’s creditors only in the event that FHN becomes insolvent. These trusts are considered VIEs as there is no equity at risk in the trusts since FHN provided the equity interest to its employees in exchange for services rendered. FHN is considered the primary beneficiary of the rabbi trusts as it has the power to direct the activities that most significantly impact the economic performance of the rabbi trusts through its ability to direct the underlying investments made by the trusts. Additionally, FHN could potentially receive benefits or absorb losses that are significant to the trusts due to its right to receive any asset values in excess of liability payoffs and its obligation to fund any liabilities to employees that are in excess of a rabbi trust’s assets. The following table summarizes VIEs consolidated by FHN as of March 31, 2019 and December 31, 2018 : March 31, 2019 December 31, 2018 On-Balance Sheet Consumer Loan Securitization Rabbi Trusts Used for Deferred Compensation Plans On-Balance Sheet Consumer Loan Securitization Rabbi Trusts Used for Deferred Compensation Plans ( Dollars in thousands ) Carrying Value Carrying Value Carrying Value Carrying Value Assets: Cash and due from banks $ — N/A $ — N/A Loans, net of unearned income 14,990 N/A 16,213 N/A Less: Allowance for loan losses — N/A — N/A Total net loans 14,990 N/A 16,213 N/A Other assets 34 $ 83,941 35 $ 78,446 Total assets $ 15,024 $ 83,941 $ 16,248 $ 78,446 Liabilities: Term borrowings $ 1,802 N/A $ 2,981 N/A Other liabilities — $ 64,069 — $ 56,700 Total liabilities $ 1,802 $ 64,069 $ 2,981 $ 56,700 Nonconsolidated Variable Interest Entities Low Income Housing Partnerships. First Tennessee Housing Corporation (“FTHC”), a wholly-owned subsidiary of FTBNA, makes equity investments as a limited partner in various partnerships that sponsor affordable housing projects utilizing the Low Income Housing Tax Credit (“LIHTC”) pursuant to Section 42 of the Internal Revenue Code. The purpose of these investments is to achieve a satisfactory return on capital and to support FHN’s community reinvestment initiatives. The activities of the limited partnerships include the identification, development, and operation of multi-family housing units that are leased to qualifying residential tenants generally within FHN’s primary geographic region. LIHTC partnerships are considered VIEs as FTHC, the holder of the equity investment at risk, does not have the ability to direct the activities that most significantly affect the performance of the entity through voting rights or similar rights. FTHC could absorb losses that are significant to the LIHTC partnerships as it has a risk of loss for its capital contributions and funding commitments to each partnership. The general partners are considered the primary beneficiaries as managerial functions give them the power to direct the activities that most significantly impact the entities’ economic performance and the managing members are exposed to all losses beyond FTHC’s initial capital contributions and funding commitments. FHN accounts for all qualifying LIHTC investments under the proportional amortization method. Under this method an entity amortizes the initial cost of the investment in proportion to the tax credits and other tax benefits received and recognizes the net investment performance in the income statement as a component of income tax expense/(benefit). LIHTC investments that do not qualify for the proportional amortization method are accounted for using the equity method. Expenses associated with these investments were $.5 million and $1.0 million for the three months ended March 31, 2019 and 2018 , respectively. The following table summarizes the impact to the Provision/(benefit) for income taxes on the Consolidated Condensed Statements of Income for the three months ended March 31, 2019 , and 2018 for LIHTC investments accounted for under the proportional amortization method. Three Months Ended ( Dollars in thousands ) 2019 2018 Provision/(benefit) for income taxes: Amortization of qualifying LIHTC investments $ 3,998 $ 2,356 Low income housing tax credits (3,629 ) (2,537 ) Other tax benefits related to qualifying LIHTC investments (1,610 ) (690 ) Other Tax Credit Investments. First Tennessee New Markets Corporation (“FTNMC”), a wholly-owned subsidiary of FTBNA, makes equity investments through wholly-owned subsidiaries as a non-managing member in various limited liability companies (“LLCs”) that sponsor community development projects utilizing the New Market Tax Credit (“NMTC”) pursuant to Section 45 of the Internal Revenue Code. The purpose of these investments is to achieve a satisfactory return on capital and to support FHN’s community reinvestment initiatives. The activities of the LLCs include providing investment capital for low-income communities within FHN’s primary geographic region. A portion of the funding of FTNMC’s investment in a NMTC LLC is obtained via a loan from an unrelated third-party that is typically a community development enterprise. The NMTC LLCs are considered VIEs as FTNMC, the holder of the equity investment at risk, does not have the ability to direct the activities that most significantly affect the performance of the entity through voting rights or similar rights. While FTNMC could absorb losses that are significant to the NMTC LLCs as it has a risk of loss for its initial capital contributions, the managing members are considered the primary beneficiaries as managerial functions give them the power to direct the activities that most significantly impact the NMTC LLCs’ economic performance and the managing members are exposed to all losses beyond FTNMC’s initial capital contributions. A NMTC relationship was resolved in fourth quarter 2018 resulting in a $15.3 million decline in the investment balance and the related debt. FTHC also makes equity investments as a limited partner or non-managing member in entities that receive Historic Tax Credits pursuant to Section 47 of the Internal Revenue Code. The purpose of these entities is the rehabilitation of historic buildings with the tax credits provided to incent private investment in the historic cores of cities and towns. These entities are considered VIEs as FTHC, the holder of the equity investment at risk, does not have the ability to direct the activities that most significantly affect the performance of the entity through voting rights or similar rights. FTHC could absorb losses that are significant to the entities as it has a risk of loss for its capital contributions and funding commitments to each partnership. The managing members are considered the primary beneficiaries as managerial functions give them the power to direct the activities that most significantly impact the entities’ economic performance and the managing members are exposed to all losses beyond FTHC’s initial capital contributions and funding commitments. Small Issuer Trust Preferred Holdings . FTBNA holds variable interests in trusts which have issued mandatorily redeemable preferred capital securities (“trust preferreds”) for smaller banking and insurance enterprises. FTBNA has no voting rights for the trusts’ activities. The trusts’ only assets are junior subordinated debentures of the issuing enterprises. The creditors of the trusts hold no recourse to the assets of FTBNA. These trusts meet the definition of a VIE as the holders of the equity investment at risk do not have the power through voting rights, or similar rights, to direct the activities that most significantly impact the trusts’ economic performance. Based on the nature of the trusts’ activities and the size of FTBNA’s holdings, FTBNA could potentially receive benefits or absorb losses that are significant to the trusts regardless of whether a majority of a trust’s securities are held by FTBNA. However, since FTBNA is solely a holder of the trusts’ securities, it has no rights which would give it the power to direct the activities that most significantly impact the trusts’ economic performance and thus it is not considered the primary beneficiary of the trusts. FTBNA has no contractual requirements to provide financial support to the trusts. On-Balance Sheet Trust Preferred Securitization. In 2007, FTBNA executed a securitization of certain small issuer trust preferreds for which the underlying trust meets the definition of a VIE as the holders of the equity investment at risk do not have the power through voting rights, or similar rights, to direct the activities that most significantly impact the entity’s economic performance. FTBNA could potentially receive benefits or absorb losses that are significant to the trust based on the size and priority of the interests it retained in the securities issued by the trust. However, since FTBNA did not retain servicing or other decision making rights, FTBNA is not the primary beneficiary as it does not have the power to direct the activities that most significantly impact the trust’s economic performance. Accordingly, FTBNA has accounted for the funds received through the securitization as a term borrowing in its Consolidated Condensed Statements of Condition. FTBNA has no contractual requirements to provide financial support to the trust. Proprietary Residential Mortgage Securitizations. FHN holds variable interests (primarily principal-only strips) in proprietary residential mortgage securitization trusts it established prior to 2008 as a source of liquidity for its mortgage banking operations. Except for recourse due to breaches of representations and warranties made by FHN in connection with the sale of the loans to the trusts, the creditors of the trusts hold no recourse to the assets of FHN. Additionally, FHN has no contractual requirements to provide financial support to the trusts. Based on their restrictive nature, the trusts are considered VIEs as the holders of equity at risk do not have the power through voting rights, or similar rights, to direct the activities that most significantly impact the trusts’ economic performance. However, FHN did not have the ability to participate in significant portions of a securitization trust’s cash flows and FHN was not considered the primary beneficiary of the trust. Therefore, these trusts were not consolidated by FHN. Holdings in Agency Mortgage-Backed Securities. FHN holds securities issued by various Agency securitization trusts. Based on their restrictive nature, the trusts meet the definition of a VIE since the holders of the equity investments at risk do not have the power through voting rights, or similar rights, to direct the activities that most significantly impact the entities’ economic performance. FHN could potentially receive benefits or absorb losses that are significant to the trusts based on the nature of the trusts’ activities and the size of FHN’s holdings. However, FHN is solely a holder of the trusts’ securities and does not have the power to direct the activities that most significantly impact the trusts’ economic performance, and is not considered the primary beneficiary of the trusts. FHN has no contractual requirements to provide financial support to the trusts. Commercial Loan Troubled Debt Restructurings. For certain troubled commercial loans, FTBNA restructures the terms of the borrower’s debt in an effort to increase the probability of receipt of amounts contractually due. Following a troubled debt restructuring, the borrower entity typically meets the definition of a VIE as the initial determination of whether an entity is a VIE must be reconsidered as events have proven that the entity’s equity is not sufficient to permit it to finance its activities without additional subordinated financial support or a restructuring of the terms of its financing. As FTBNA does not have the power to direct the activities that most significantly impact such troubled commercial borrowers’ operations, it is not considered the primary beneficiary even in situations where, based on the size of the financing provided, FTBNA is exposed to potentially significant benefits and losses of the borrowing entity. FTBNA has no contractual requirements to provide financial support to the borrowing entities beyond certain funding commitments established upon restructuring of the terms of the debt that allows for preparation of the underlying collateral for sale. Sale Leaseback Transaction . FTB has entered into an agreement with a single asset leasing entity for the sale and leaseback of an office building. In conjunction with this transaction, FTB loaned funds to a related party of the buyer that were used for the purchase price of the building. FTB also entered into a construction loan agreement with the single asset entity for renovation of the building. Since this transaction did not qualify as a sale prior to 2019, it was accounted for using the deposit method which created a net asset or liability for all cash flows between FTB and the buyer. Upon adoption of ASU 2016-02 the transaction qualified as a seller-financed sale-leaseback. The buyer-lessor in this transaction meets the definition of a VIE as it does not have sufficient equity at risk since FTB is providing the funding for the purchase and renovation. A related party of the buyer-lessor has the power to direct the activities that most significantly impact the operations and could potentially receive benefits or absorb losses that are significant to the transactions, making it the primary beneficiary. Therefore, FTB does not consolidate the leasing entity. Proprietary Trust Preferred Issuances . In conjunction with the acquisition of CBF, FHN acquired junior subordinated debt totaling $212.4 million underlying multiple issuances of trust preferred debt by institutions previously acquired by CBF. All of these trusts are considered VIEs because the ownership interests from the capital contributions to these trusts are not considered “at risk” in evaluating whether the holders of the equity investments at risk in the trusts have the power through voting rights, or similar rights, to direct the activities that most significantly impact the entities’ economic performance. Thus, FHN cannot be the trusts’ primary beneficiary because its ownership interests in the trusts are not considered variable interests as they are not considered “at risk”. Consequently, none of the trusts are consolidated by FHN. FHN retired $45.4 million of this debt and the related trust preferred securities in third and fourth quarter 2018. The following table summarizes FHN’s nonconsolidated VIEs as of March 31, 2019 : (Dollars in thousands) Maximum Loss Exposure Liability Recognized Classification Type Low income housing partnerships $ 152,048 $ 79,691 (a) Other tax credit investments (b) (c) 8,961 — Other assets Small issuer trust preferred holdings (d) 269,635 — Loans, net of unearned income On-balance sheet trust preferred securitization 37,121 77,053 (e) Proprietary residential mortgage securitizations 1,397 — Trading securities Holdings of agency mortgage-backed securities (d) 4,905,088 — (f) Commercial loan troubled debt restructurings (g) 51,893 — Loans, net of unearned income Sale-leaseback transaction 19,777 — (h) Proprietary trust preferred issuances (i) — 167,014 Term borrowings (a) Maximum loss exposure represents $72.4 million of current investments and $79.7 million of accrued contractual funding commitments. Accrued funding commitments represent unconditional contractual obligations for future funding events, and are also recognized in Other liabilities. FHN currently expects to be required to fund these accrued commitments by the end of 2021. (b) A liability is not recognized as investments are written down over the life of the related tax credit. (c) Maximum loss exposure represents current investment balance. Of the initial investment, $2.7 million was funded through loans from community development enterprises. (d) Maximum loss exposure represents the value of current investments. A liability is not recognized as FHN is solely a holder of the trusts’ securities. (e) Includes $112.5 million classified as Loans, net of unearned income, and $1.7 million classified as Trading securities which are offset by $77.1 million classified as Term borrowings. (f) Includes $.6 billion classified as Trading securities and $4.3 billion classified as Securities available-for-sale. (g) Maximum loss exposure represents $51.6 million of current receivables and $.3 million of contractual funding commitments on loans related to commercial borrowers involved in a troubled debt restructuring. (h) Maximum loss exposure represents the current loan balance plus additional funding commitments. (i) No exposure to loss due to nature of FHN's involvement. The following table summarizes FHN’s nonconsolidated VIEs as of December 31, 2018 : (Dollars in thousands) Maximum Loss Exposure Liability Recognized Classification Type Low income housing partnerships $ 156,056 $ 80,427 (a) Other tax credit investments (b) (c) 3,619 — Other assets Small issuer trust preferred holdings (d) 270,585 — Loans, net of unearned income On-balance sheet trust preferred securitization 37,532 76,642 (e) Proprietary residential mortgage securitizations 1,524 — Trading securities Holdings of agency mortgage-backed securities (d) 4,842,630 — (f) Commercial loan troubled debt restructurings (g) 40,590 — Loans, net of unearned income Sale-leaseback transaction 16,327 — (h) Proprietary trust preferred issuances (i) — 167,014 Term borrowings (a) Maximum loss exposure represents $75.6 million of current investments and $80.4 million of accrued contractual funding commitments. Accrued funding commitments represent unconditional contractual obligations for future funding events, and are also recognized in Other liabilities. FHN currently expects to be required to fund these accrued commitments by the end of 2020. (b) A liability is not recognized as investments are written down over the life of the related tax credit. (c) Maximum loss exposure represents current investment balance. Of the initial investment, $2.7 million was funded through loans from community development enterprises. (d) Maximum loss exposure represents the value of current investments. A liability is not recognized as FHN is solely a holder of the trusts’ securities. (e) Includes $112.5 million classified as Loans, net of unearned income, and $1.7 million classified as Trading securities which are offset by $76.6 million classified as Term borrowings. (f) Includes $.5 billion classified as Trading securities and $4.4 billion classified as Securities available-for-sale. (g) Maximum loss exposure represents $38.2 million of current receivables and $ 2.3 million of contractual funding commitments on loans related to commercial borrowers involved in a troubled debt restructuring. (h) Maximum loss exposure represents the current loan balance plus additional funding commitments less amounts received from the buyer-lessor. (i) No exposure to loss due to nature of FHN's involvement.

Derivatives

Derivatives	3 Months Ended
	Mar. 31, 2019
Derivative Instruments and Hedging Activities Disclosure [Abstract]
Derivatives	Derivatives In the normal course of business, FHN utilizes various financial instruments (including derivative contracts and credit-related agreements) through its fixed income and risk management operations, as part of its risk management strategy and as a means to meet customers’ needs. Derivative instruments are subject to credit and market risks in excess of the amount recorded on the balance sheet as required by GAAP. The contractual or notional amounts of these financial instruments do not necessarily represent the amount of credit or market risk. However, they can be used to measure the extent of involvement in various types of financial instruments. Controls and monitoring procedures for these instruments have been established and are routinely reevaluated. The Asset/Liability Committee (“ALCO”) controls, coordinates, and monitors the usage and effectiveness of these financial instruments. Credit risk represents the potential loss that may occur if a party to a transaction fails to perform according to the terms of the contract. The measure of credit exposure is the replacement cost of contracts with a positive fair value. FHN manages credit risk by entering into financial instrument transactions through national exchanges, primary dealers or approved counterparties, and by using mutual margining and master netting agreements whenever possible to limit potential exposure. FHN also maintains collateral posting requirements with certain counterparties to limit credit risk. In 2017 and 2018, the central clearinghouses revised the treatment of daily margin posted or received from collateral to legal settlements of the related derivative contracts which resulted in a reduction in derivative assets and liabilities and corresponding reductions in collateral posted and received as these amounts are now presented net by contract in the Consolidated Condensed Statements of Condition. These changes had no effect on hedge accounting or gains/losses for the applicable derivative contracts. On March 31, 2019 and December 31, 2018 , respectively, FHN had $79.6 million and $76.0 million of cash receivables and $33.2 million and $34.0 million of cash payables related to collateral posting under master netting arrangements, inclusive of collateral posted related to contracts with adjustable collateral posting thresholds and over-collateralized positions, with derivative counterparties. With exchange-traded contracts, the credit risk is limited to the clearinghouse used. For non-exchange traded instruments, credit risk may occur when there is a gain in the fair value of the financial instrument and the counterparty fails to perform according to the terms of the contract and/or when the collateral proves to be of insufficient value. See additional discussion regarding master netting agreements and collateral posting requirements later in this note under the heading “Master Netting and Similar Agreements.” Market risk represents the potential loss due to the decrease in the value of a financial instrument caused primarily by changes in interest rates or the prices of debt instruments. FHN manages market risk by establishing and monitoring limits on the types and degree of risk that may be undertaken. FHN continually measures this risk through the use of models that measure value-at-risk and earnings-at-risk. Derivative Instruments. FHN enters into various derivative contracts both in a dealer capacity to facilitate customer transactions and as a risk management tool. Where contracts have been created for customers, FHN enters into upstream transactions with dealers to offset its risk exposure. Contracts with dealers that require central clearing are novated to a clearing agent who becomes FHN’s counterparty. Derivatives are also used as a risk management tool to hedge FHN’s exposure to changes in interest rates or other defined market risks. Forward contracts are over-the-counter contracts where two parties agree to purchase and sell a specific quantity of a financial instrument at a specified price, with delivery or settlement at a specified date. Futures contracts are exchange-traded contracts where two parties agree to purchase and sell a specific quantity of a financial instrument at a specified price, with delivery or settlement at a specified date. Interest rate option contracts give the purchaser the right, but not the obligation, to buy or sell a specified quantity of a financial instrument, at a specified price, during a specified period of time. Caps and floors are options that are linked to a notional principal amount and an underlying indexed interest rate. Interest rate swaps involve the exchange of interest payments at specified intervals between two parties without the exchange of any underlying principal. Swaptions are options on interest rate swaps that give the purchaser the right, but not the obligation, to enter into an interest rate swap agreement during a specified period of time. Trading Activities FHN’s fixed income segment trades U.S. Treasury, U.S. Agency, government-guaranteed loan, mortgage-backed, corporate and municipal fixed income securities, and other securities for distribution to customers. When these securities settle on a delayed basis, they are considered forward contracts. Fixed income also enters into interest rate contracts, including caps, swaps, and floors, for its customers. In addition, fixed income enters into futures and option contracts to economically hedge interest rate risk associated with a portion of its securities inventory. These transactions are measured at fair value, with changes in fair value recognized currently in fixed income noninterest income. Related assets and liabilities are recorded on the Consolidated Condensed Statements of Condition as Derivative assets and Derivative liabilities. The FTN Financial Risk Committee and the Credit Risk Management Committee collaborate to mitigate credit risk related to these transactions. Credit risk is controlled through credit approvals, risk control limits, and ongoing monitoring procedures. Total trading revenues were $44.5 million and $38.0 million for the three months ended March 31, 2019 and 2018 , respectively. Trading revenues are inclusive of both derivative and non-derivative financial instruments, and are included in Fixed income noninterest income on the Consolidated Condensed Statements of Income. The following tables summarize FHN’s derivatives associated with fixed income trading activities as of March 31, 2019 and December 31, 2018 : March 31, 2019 (Dollars in thousands) Notional Assets Liabilities Customer interest rate contracts $ 2,279,361 $ 30,632 $ 14,245 Offsetting upstream interest rate contracts 2,279,361 5,056 4,834 Option contracts purchased 72,500 103 — Forwards and futures purchased 7,983,000 31,733 4,404 Forwards and futures sold 8,373,739 5,243 32,284 December 31, 2018 (Dollars in thousands) Notional Assets Liabilities Customer interest rate contracts $ 2,271,448 $ 18,744 $ 27,768 Offsetting upstream interest rate contracts 2,271,448 4,014 9,041 Option contracts purchased 20,000 25 — Forwards and futures purchased 4,684,177 28,304 181 Forwards and futures sold 4,967,454 522 30,055 Interest Rate Risk Management FHN’s ALCO focuses on managing market risk by controlling and limiting earnings volatility attributable to changes in interest rates. Interest rate risk exists to the extent that interest-earning assets and interest-bearing liabilities have different maturity or repricing characteristics. FHN uses derivatives, primarily swaps, that are designed to moderate the impact on earnings as interest rates change. Interest paid or received for swaps utilized by FHN to hedge the fair value of long term debt is recognized as an adjustment of the interest expense of the liabilities whose risk is being managed. FHN’s interest rate risk management policy is to use derivatives to hedge interest rate risk or market value of assets or liabilities, not to speculate. In addition, FHN has entered into certain interest rate swaps and caps as a part of a product offering to commercial customers that includes customer derivatives paired with upstream offsetting market instruments that, when completed, are designed to mitigate interest rate risk. These contracts do not qualify for hedge accounting and are measured at fair value with gains or losses included in current earnings in Noninterest expense on the Consolidated Condensed Statements of Income. FHN has designated a derivative transaction in a hedging strategy to manage interest rate risk on $400.0 million of senior debt issued by FTBNA which matures in December 2019. This qualifies for hedge accounting under ASC 815-20 using the long-haul method. FHN entered into a pay floating, receive fixed interest rate swap to hedge the interest rate risk of the senior debt. FHN has designated a derivative transaction in a hedging strategy to manage interest rate risk on $500.0 million of senior debt which matures in December 2020. This qualifies for hedge accounting under ASC 815-20 using the long-haul method. FHN entered into a pay floating, receive fixed interest rate swap to hedge the interest rate risk of the senior debt. The following tables summarize FHN’s derivatives associated with interest rate risk management activities as of March 31, 2019 and December 31, 2018 : March 31, 2019 (Dollars in thousands) Notional Assets Liabilities Customer Interest Rate Contracts Hedging Hedging Instruments and Hedged Items: Customer interest rate contracts $ 2,122,743 $ 37,754 $ 14,260 Offsetting upstream interest rate contracts 2,122,743 7,232 6,731 Debt Hedging Hedging Instruments: Interest rate swaps $ 900,000 N/A $ 448 Hedged Items: Term borrowings: Par N/A N/A $ 900,000 Cumulative fair value hedging adjustments N/A N/A (10,828 ) Unamortized premium/(discount) and issuance costs N/A N/A (1,891 ) Total carrying value N/A N/A $ 887,281 December 31, 2018 (Dollars in thousands) Notional Assets Liabilities Customer Interest Rate Contracts Hedging Hedging Instruments and Hedged Items: Customer interest rate contracts $ 2,029,162 $ 20,262 $ 25,880 Offsetting upstream interest rate contracts 2,029,162 8,154 9,153 Debt Hedging Hedging Instruments: Interest rate swaps $ 900,000 $ 127 $ 6 Hedged Items: Term borrowings: Par N/A N/A $ 900,000 Cumulative fair value hedging adjustments N/A N/A (15,094 ) Unamortized premium/(discount) and issuance costs N/A N/A (2,295 ) Total carrying value N/A N/A $ 882,611 The following table summarizes gains/(losses) on FHN’s derivatives associated with interest rate risk management activities for the three months ended March 31, 2019 and 2018 : Three Months Ended 2019 2018 (Dollars in thousands) Gains/(Losses) Gains/(Losses) Customer Interest Rate Contracts Hedging Hedging Instruments and Hedged Items: Customer interest rate contracts (a) $ 29,112 $ (24,724 ) Offsetting upstream interest rate contracts (a) (29,112 ) 24,724 Debt Hedging Hedging Instruments: Interest rate swaps (b) $ 4,279 $ (6,595 ) Hedged Items: Term borrowings (a) (c) (4,266 ) 6,550 (a) Gains/losses included in All other expense within the Consolidated Condensed Statements of Income. (b) Gains/losses included in the Interest expense. (c) Represents gains and losses attributable to changes in fair value due to interest rate risk as designated in ASC 815-20 hedging relationships. In first quarter 2016, FHN entered into a pay floating, receive fixed interest rate swap in a hedging strategy to manage its exposure to the variability in cash flows related to the interest payments for the following five years on $250 million principal of debt instruments, which primarily consist of held-to-maturity trust preferred loans that have variable interest payments based on 3-month LIBOR. In first quarter 2017, FHN initiated cash flow hedges of $650 million notional amount that had initial durations between three and seven years. The debt instruments primarily consist of held-to-maturity commercial loans that have variable interest payments based on 1-month LIBOR. These qualify for hedge accounting as cash flow hedges under ASC 815-20. All changes in the fair value of these derivatives are recorded as a component of AOCI. Amounts are reclassified from AOCI to earnings as the hedged cash flows affect earnings. Interest paid or received for these swaps is recognized as an adjustment to interest income of the assets whose cash flows are being hedged. The following tables summarize FHN’s derivative activities associated with cash flow hedges as of March 31, 2019 and December 31, 2018 : March 31, 2019 (Dollars in thousands) Notional Assets Liabilities Cash Flow Hedges Hedging Instruments: Interest rate swaps $ 900,000 N/A $ 891 Hedged Items: Variability in cash flows related to debt instruments (primarily loans) N/A $ 900,000 N/A December 31, 2018 (Dollars in thousands) Notional Assets Liabilities Cash Flow Hedges Hedging Instruments: Interest rate swaps $ 900,000 $ 888 $ 5 Hedged Items: Variability in cash flows related to debt instruments (primarily loans) N/A $ 900,000 N/A The following table summarizes gains/(losses) on FHN’s derivatives associated with cash flow hedges for the three months ended March 31, 2019 and 2018 : Three Months Ended 2019 2018 (Dollars in thousands) Gains/(Losses) Gains/(Losses) Cash Flow Hedges Hedging Instruments: Interest rate swaps (a) $ 7,218 $ (11,618 ) Gain/(loss) recognized in Other comprehensive income/(loss) 3,936 (8,844 ) Gain/(loss) reclassified from AOCI into Interest income 1,451 (155 ) (a) Approximately $5.0 million of pre-tax losses are expected to be reclassified into earnings in the next twelve months. Other Derivatives In conjunction with the sales of a portion of its Visa Class B shares in 2010 and 2011, FHN and the purchaser entered into derivative transactions whereby FHN will make or receive cash payments whenever the conversion ratio of the Visa Class B shares into Visa Class A shares is adjusted. FHN is also required to make periodic financing payments to the purchasers until all of Visa's covered litigation matters are resolved. In third quarter 2018, FHN sold the remainder of its Visa Class B shares, entering into a similar derivative arrangement with the counterparty. All of these derivatives extend until the end of Visa’s Covered Litigation matters. In September 2018, Visa reached a preliminary settlement for one class of plaintiffs in its Payment Card Interchange matter which has received court approval. This settlement contains opt out provisions for individual plaintiffs as well as a termination option if opt outs exceed a specified threshold. Settlement has not been reached with the second class of plaintiffs in this matter and other covered litigation matters are also pending judicial resolution. Accordingly, the value and timing for completion of Visa’s Covered Litigation matters are uncertain. The derivative transaction executed in third quarter 2018 includes a contingent accelerated termination clause based on the credit ratings of FHN and FTBNA. FHN has not received or paid collateral related to this contract. As of March 31, 2019 and December 31, 2018 , the derivative liabilities associated with the sales of Visa Class B shares were $29.0 million and $31.5 million , respectively. See Note 17 - Fair Value of Assets & Liabilities for discussion of the valuation inputs and processes for these Visa-related derivatives. FHN utilizes cross currency swaps and cross currency interest rate swaps to economically hedge its exposure to foreign currency risk and interest rate risk associated with non-U.S. dollar denominated loans. As of March 31, 2019 and December 31, 2018 , these loans were valued at $15.2 million and $11.0 million , respectively. The balance sheet amount and the gains/losses associated with these derivatives were not significant. Master Netting and Similar Agreements As previously discussed, FHN uses master netting agreements, mutual margining agreements and collateral posting requirements to minimize credit risk on derivative contracts. Master netting and similar agreements are used when counterparties have multiple derivatives contracts that allow for a “right of setoff,” meaning that a counterparty may net offsetting positions and collateral with the same counterparty under the contract to determine a net receivable or payable. The following discussion provides an overview of these arrangements which may vary due to the derivative type and market in which a derivative transaction is executed. Interest rate derivatives are subject to agreements consistent with standard agreement forms of the International Swap and Derivatives Association (“ISDA”). Currently, all interest rate derivative contracts are entered into as over-the-counter transactions and collateral posting requirements are based on the net asset or liability position with each respective counterparty. For contracts that require central clearing, novation to a counterparty with access to a clearinghouse occurs and margin is posted. Cash margin received (posted) that is considered settlements for the derivative contracts is included in the respective derivative asset (liability) value. Cash margin that is considered collateral received (posted) for interest rate derivatives is recognized as a liability (asset) on FHN’s Consolidated Condensed Statements of Condition. Interest rate derivatives with customers that are smaller financial institutions typically require posting of collateral by the counterparty to FHN. This collateral is subject to a threshold with daily adjustments based upon changes in the level or fair value of the derivative position. Positions and related collateral can be netted in the event of default. Collateral pledged by a counterparty is typically cash or securities. The securities pledged as collateral are not recognized within FHN’s Consolidated Condensed Statements of Condition. Interest rate derivatives associated with lending arrangements share the collateral with the related loan(s). The derivative and loan positions may be netted in the event of default. For disclosure purposes, the entire collateral amount is allocated to the loan. Interest rate derivatives with larger financial institutions entered into prior to required central clearing typically contain provisions whereby the collateral posting thresholds under the agreements adjust based on the credit ratings of both counterparties. If the credit rating of FHN and/or FTBNA is lowered, FHN could be required to post additional collateral with the counterparties. Conversely, if the credit rating of FHN and/or FTBNA is increased, FHN could have collateral released and be required to post less collateral in the future. Also, if a counterparty’s credit ratings were to decrease, FHN and/or FTBNA could require the posting of additional collateral; whereas if a counterparty’s credit ratings were to increase, the counterparty could require the release of excess collateral. Collateral for these arrangements is adjusted daily based on changes in the net fair value position with each counterparty. The net fair value, determined by individual counterparty, of all derivative instruments with adjustable collateral posting thresholds was $27.2 million of assets and $16.4 million of liabilities on March 31, 2019 , and $20.7 million of assets and $37.8 million of liabilities on December 31, 2018 . As of March 31, 2019 and December 31, 2018 , FHN had received collateral of $86.3 million and $86.6 million and posted collateral of $18.6 million and $16.2 million , respectively, in the normal course of business related to these agreements. Certain agreements entered into prior to required central clearing also contain accelerated termination provisions, inclusive of the right of offset, if a counterparty’s credit rating falls below a specified level. If a counterparty’s debt rating (including FHN’s and FTBNA’s) were to fall below these minimums, these provisions would be triggered, and the counterparties could terminate the agreements and require immediate settlement of all derivative contracts under the agreements. The net fair value, determined by individual counterparty, of all derivative instruments with credit-risk-related contingent accelerated termination provisions was $27.2 million of assets and $10.9 million of liabilities on March 31, 2019 , and $19.0 million of assets and $33.2 million of liabilities on December 31, 2018 . As of March 31, 2019 and December 31, 2018 , FHN had received collateral of $86.3 million and $84.5 million and posted collateral of $13.5 million and $15.2 million , respectively, in the normal course of business related to these contracts. FHN’s fixed income segment buys and sells various types of securities for its customers. When these securities settle on a delayed basis, they are considered forward contracts, and are generally not subject to master netting agreements. For futures and options, FHN transacts through a third party, and the transactions are subject to margin and collateral maintenance requirements. In the event of default, open positions can be offset along with the associated collateral. For this disclosure, FHN considers the impact of master netting and other similar agreements which allow FHN to settle all contracts with a single counterparty on a net basis and to offset the net derivative asset or liability position with the related securities and cash collateral. The application of the collateral cannot reduce the net derivative asset or liability position below zero, and therefore any excess collateral is not reflected in the following tables. The following table provides details of derivative assets and collateral received as presented on the Consolidated Condensed Statements of Condition as of March 31, 2019 and December 31, 2018 : Gross amounts not offset in the Statements of Condition (Dollars in thousands) Gross amounts of recognized assets Gross amounts offset in the Statements of Condition Net amounts of assets presented in the Statements of Condition (a) Derivative liabilities available for offset Collateral received Net amount Derivative assets: March 31, 2019 (b) $ 81,003 $ — $ 81,003 $ (12,081 ) $ (68,887 ) $ 35 December 31, 2018 (b) 52,562 — 52,562 (12,745 ) (39,637 ) 180 (a) Included in Derivative assets on the Consolidated Condensed Statements of Condition. As of March 31, 2019 and December 31, 2018 , $37.1 million and $28.9 million , respectively, of derivative assets (primarily fixed income forward contracts) have been excluded from these tables because they are generally not subject to master netting or similar agreements. (b) Amounts are comprised entirely of interest rate derivative contracts. The following table provides details of derivative liabilities and collateral pledged as presented on the Consolidated Condensed Statements of Condition as of March 31, 2019 and December 31, 2018 : Gross amounts not offset in the Statements of Condition (Dollars in thousands) Gross amounts of recognized liabilities Gross amounts offset in the Statements of Condition Net amounts of liabilities presented in the Statements of Condition (a) Derivative assets available for offset Collateral pledged Net amount Derivative liabilities: March 31, 2019 (b) $ 41,409 $ — $ 41,409 $ (12,081 ) $ (28,679 ) $ 649 December 31, 2018 (b) 71,853 — 71,853 (12,745 ) (54,773 ) 4,335 (a) Included in Derivative liabilities on the Consolidated Condensed Statements of Condition. As of March 31, 2019 and December 31, 2018 , $65.7 million and $61.9 million , respectively, of derivative liabilities (primarily Visa-related derivatives and fixed income forward contracts) have been excluded from these tables because they are generally not subject to master netting or similar agreements. (b) Amounts are comprised entirely of interest rate derivative contracts.

Master Netting and Similar Agre

Master Netting and Similar Agreements—Repurchase, Reverse Repurchase, and Securities Borrowing Transactions	3 Months Ended
	Mar. 31, 2019
Offsetting [Abstract]
Master Netting and Similar Agreements—Repurchase, Reverse Repurchase, and Securities Borrowing Transactions	Master Netting and Similar Agreements—Repurchase, Reverse Repurchase, and Securities Borrowing Transactions For repurchase, reverse repurchase and securities borrowing transactions, FHN and each counterparty have the ability to offset all open positions and related collateral in the event of default. Due to the nature of these transactions, the value of the collateral for each transaction approximates the value of the corresponding receivable or payable. For repurchase agreements through FHN’s fixed income business (Securities purchased under agreements to resell and Securities sold under agreements to repurchase), transactions are collateralized by securities and/or government guaranteed loans which are delivered on the settlement date and are maintained throughout the term of the transaction. For FHN’s repurchase agreements through banking activities (Securities sold under agreements to repurchase), securities are typically pledged at settlement and not released until maturity. For asset positions, the collateral is not included on FHN’s Consolidated Condensed Statements of Condition. For liability positions, securities collateral pledged by FHN is generally represented within FHN’s trading or available-for-sale securities portfolios. For this disclosure, FHN considers the impact of master netting and other similar agreements that allow FHN to settle all contracts with a single counterparty on a net basis and to offset the net asset or liability position with the related securities collateral. The application of the collateral cannot reduce the net asset or liability position below zero, and therefore any excess collateral is not reflected in the tables below. The following table provides details of Securities purchased under agreements to resell as presented on the Consolidated Condensed Statements of Condition and collateral pledged by counterparties as of March 31, 2019 and December 31, 2018 : Gross amounts not offset in the Statements of Condition (Dollars in thousands) Gross amounts of recognized assets Gross amounts offset in the Statements of Condition Net amounts of assets presented in the Statements of Condition Offsetting securities sold under agreements to repurchase Securities collateral (not recognized on FHN’s Statements of Condition) Net amount Securities purchased under agreements to resell: March 31, 2019 $ 474,679 $ — $ 474,679 $ (1,276 ) $ (469,450 ) $ 3,953 December 31, 2018 386,443 — 386,443 (261 ) (382,756 ) 3,426 The following table provides details of Securities sold under agreements to repurchase as presented on the Consolidated Condensed Statements of Condition and collateral pledged by FHN as of March 31, 2019 and December 31, 2018 : Gross amounts not offset in the Statements of Condition (Dollars in thousands) Gross amounts of recognized liabilities Gross amounts offset in the Statements of Condition Net amounts of liabilities presented in the Statements of Condition Offsetting securities purchased under agreements to resell Securities/ government guaranteed loans collateral Net amount Securities sold under agreements to repurchase: March 31, 2019 $ 745,788 $ — $ 745,788 $ (1,276 ) $ (744,427 ) $ 85 December 31, 2018 762,592 — 762,592 (261 ) (762,322 ) 9 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 March 31, 2019 and December 31, 2018 : March 31, 2019 (Dollars in thousands) Overnight and Continuous Up to 30 Days Total Securities sold under agreements to repurchase: U.S. treasuries $ 24,108 $ — $ 24,108 Government agency issued MBS 366,837 9,140 375,977 Government agency issued CMO 36,137 — 36,137 Government guaranteed loans (SBA and USDA) 309,566 — 309,566 Total Securities sold under agreements to repurchase $ 736,648 $ 9,140 $ 745,788 December 31, 2018 (Dollars in thousands) Overnight and Continuous Up to 30 Days Total Securities sold under agreements to repurchase: U.S. treasuries $ 16,321 $ — $ 16,321 Government agency issued MBS 414,488 5,220 419,708 Government agency issued CMO 36,688 — 36,688 Government guaranteed loans (SBA and USDA) 289,875 — 289,875 Total Securities sold under agreements to repurchase $ 757,372 $ 5,220 $ 762,592

Fair Value of Assets & Liabilit

Fair Value of Assets & Liabilities	3 Months Ended
	Mar. 31, 2019
Fair Value Disclosures [Abstract]
Fair Value of Assets & Liabilities	Fair Value of Assets & Liabilities FHN groups its assets and liabilities measured at fair value in three levels, based on the markets in which the assets and liabilities are traded and the reliability of the assumptions used to determine fair value. This hierarchy requires FHN to maximize the use of observable market data, when available, and to minimize the use of unobservable inputs when determining fair value. Each fair value measurement is placed into the proper level based on the lowest level of significant input. These levels are: • Level 1—Valuation is based upon quoted prices for identical instruments traded in active markets. • Level 2—Valuation is based upon quoted prices for similar instruments in active markets, quoted prices for identical or similar instruments in markets that are not active, and model-based valuation techniques for which all significant assumptions are observable in the market. • Level 3—Valuation is generated from model-based techniques that use significant assumptions not observable in the market. These unobservable assumptions reflect management’s estimates of assumptions that market participants would use in pricing the asset or liability. Valuation techniques include use of option pricing models, discounted cash flow models, and similar techniques. Recurring Fair Value Measurements The following table presents the balance of assets and liabilities measured at fair value on a recurring basis as of March 31, 2019 : March 31, 2019 (Dollars in thousands) Level 1 Level 2 Level 3 Total Trading securities—fixed income: U.S. treasuries $ — $ 232,019 $ — $ 232,019 Government agency issued MBS — 292,020 — 292,020 Government agency issued CMO — 295,476 — 295,476 Other U.S. government agencies — 78,958 — 78,958 States and municipalities — 81,513 — 81,513 Corporate and other debt — 696,680 — 696,680 Equity, mutual funds, and other — 3,664 — 3,664 Total trading securities—fixed income — 1,680,330 — $ 1,680,330 Trading securities—mortgage banking — — 1,397 1,397 Loans held-for-sale (elected fair value) — — 15,751 15,751 Securities available-for-sale: U.S. treasuries — 99 — 99 Government agency issued MBS — 2,385,809 — 2,385,809 Government agency issued CMO — 1,931,784 — 1,931,784 Other U.S. government agencies — 190,828 — 190,828 States and municipalities — 39,423 — 39,423 Corporate and other debt — 55,184 — 55,184 Interest-Only Strip (elected fair value) — — 13,195 13,195 Total securities available-for-sale — 4,603,127 13,195 4,616,322 Other assets: Deferred compensation mutual funds 41,097 — — 41,097 Equity, mutual funds, and other 22,326 — — 22,326 Derivatives, forwards and futures 36,976 — — 36,976 Derivatives, interest rate contracts — 80,777 — 80,777 Derivatives, other — 375 — 375 Total other assets 100,399 81,152 — 181,551 Total assets $ 100,399 $ 6,364,609 $ 30,343 $ 6,495,351 Trading liabilities—fixed income: U.S. treasuries $ — $ 284,394 $ — $ 284,394 Other U.S.government agencies — 16,817 — 16,817 Corporate and other debt — 128,458 — 128,458 Total trading liabilities—fixed income — 429,669 — 429,669 Other liabilities: Derivatives, forwards and futures 36,688 — — 36,688 Derivatives, interest rate contracts — 41,409 — 41,409 Derivatives, other — 56 28,970 29,026 Total other liabilities 36,688 41,465 28,970 107,123 Total liabilities $ 36,688 $ 471,134 $ 28,970 $ 536,792 The following table presents the balance of assets and liabilities measured at fair value on a recurring basis as of December 31, 2018 : December 31, 2018 (Dollars in thousands) Level 1 Level 2 Level 3 Total Trading securities—fixed income: U.S. treasuries $ — $ 169,799 $ — $ 169,799 Government agency issued MBS — 133,373 — 133,373 Government agency issued CMO — 330,456 — 330,456 Other U.S. government agencies — 76,733 — 76,733 States and municipalities — 54,234 — 54,234 Corporate and other debt — 682,068 — 682,068 Equity, mutual funds, and other — (19 ) — (19 ) Total trading securities—fixed income — 1,446,644 — 1,446,644 Trading securities—mortgage banking — — 1,524 1,524 Loans held-for-sale (elected fair value) — — 16,273 16,273 Securities available-for-sale: U.S. treasuries — 98 — 98 Government agency issued MBS — 2,420,106 — 2,420,106 Government agency issued CMO — 1,958,695 — 1,958,695 Other U.S. government agencies — 149,786 — 149,786 States and municipalities — 32,573 — 32,573 Corporate and other debt — 55,310 — 55,310 Interest-Only Strip (elected fair value) — — 9,902 9,902 Total securities available-for-sale — 4,616,568 9,902 4,626,470 Other assets: Deferred compensation mutual funds 37,771 — — 37,771 Equity, mutual funds, and other 22,248 — — 22,248 Derivatives, forwards and futures 28,826 — — 28,826 Derivatives, interest rate contracts — 52,214 — 52,214 Derivatives, other — 435 — 435 Total other assets 88,845 52,649 — 141,494 Total assets $ 88,845 $ 6,115,861 $ 27,699 $ 6,232,405 Trading liabilities—fixed income: U.S. treasuries $ — $ 207,739 $ — $ 207,739 Other U.S.government agencies — 98 — 98 Corporate and other debt — 127,543 — 127,543 Total trading liabilities—fixed income — 335,380 — 335,380 Other liabilities: Derivatives, forwards and futures 30,236 — — 30,236 Derivatives, interest rate contracts — 71,853 — 71,853 Derivatives, other — 84 31,540 31,624 Total other liabilities 30,236 71,937 31,540 133,713 Total liabilities $ 30,236 $ 407,317 $ 31,540 $ 469,093 Changes in Recurring Level 3 Fair Value Measurements The changes in Level 3 assets and liabilities measured at fair value for the three months ended March 31, 2019 and 2018 , on a recurring basis are summarized as follows: Three Months Ended March 31, 2019 (Dollars in thousands) Trading securities Interest- only strips- AFS Loans held- for-sale Net derivative liabilities Balance on January 1, 2019 $ 1,524 $ 9,902 $ 16,273 $ (31,540 ) Total net gains/(losses) included in: Net income 21 (1,258 ) 495 135 Purchases — 86 — — Sales — (13,012 ) — — Settlements (148 ) — (1,017 ) 2,435 Net transfers into/(out of) Level 3 — 17,477 (b) — — Balance on March 31, 2019 $ 1,397 $ 13,195 $ 15,751 $ (28,970 ) Net unrealized gains/(losses) included in net income $ (30 ) (a) $ (894 ) (c) $ 495 (a) $ 135 (d) Three Months Ended March 31, 2018 (Dollars in thousands) Trading securities Interest-only-strips-AFS Loans held-for-sale Net derivative liabilities January 1, 2018 $ 2,151 $ 1,270 $ 18,926 $ (5,645 ) Total net gains/(losses) included in: Net income 16 1,592 169 (296 ) Purchases — — 28 — Sales — (9,193 ) — — Settlements (241 ) — (789 ) 296 Net transfers into/(out of) Level 3 — 9,064 (b) — — Balance on March 31, 2018 $ 1,926 $ 2,733 $ 18,334 $ (5,645 ) Net unrealized gains/(losses) included in net income $ (25 ) (a) $ 19 (c) $ 169 (a) $ (296 ) (d) (a) Primarily included in mortgage banking income on the Consolidated Condensed Statements of Income. (b) Transfers into interest-only strips - AFS Level 3 measured on a recurring basis reflect movements from loans held-for-sale (Level 2 nonrecurring). (c) Primarily included in fixed income on the Consolidated Condensed Statements of Income. (d) Included in Other expense. There were no net unrealized gains/(losses) for Level 3 assets and liabilities included in other comprehensive income as of March 31, 2019 and 2018. Nonrecurring Fair Value Measurements From time to time, FHN may be required to measure certain other financial assets at fair value on a nonrecurring basis in accordance with GAAP. These adjustments to fair value usually result from the application of lower of cost or market (“LOCOM”) accounting or write-downs of individual assets. For assets measured at fair value on a nonrecurring basis which were still held on the Consolidated Condensed Statements of Condition at March 31, 2019 , and December 31, 2018 , respectively, the following tables provide the level of valuation assumptions used to determine each adjustment and the related carrying value. Carrying value at March 31, 2019 (Dollars in thousands) Level 1 Level 2 Level 3 Total Loans held-for-sale—other consumer $ — $ 18,137 $ — $ 18,137 Loans held-for-sale—SBAs and USDA — 494,445 1,006 495,451 Loans held-for-sale—first mortgages — — 519 519 Loans, net of unearned income (a) — — 59,657 59,657 OREO (b) — — 20,676 20,676 Other assets (c) — — 13,962 13,962 Carrying value at December 31, 2018 (Dollars in thousands) Level 1 Level 2 Level 3 Total Loans held-for-sale—other consumer $ — $ 18,712 $ — $ 18,712 Loans held-for-sale—SBAs and USDA — 577,280 1,011 578,291 Loans held-for-sale—first mortgages — — 541 541 Loans, net of unearned income (a) — — 48,259 48,259 OREO (b) — — 22,387 22,387 Other assets (c) — — 8,845 8,845 (a) Represents carrying value of loans for which adjustments are required to be based on the appraised value of the collateral less estimated costs to sell. (b) Represents the fair value of foreclosed properties that were measured subsequent to their initial classification as OREO. Balance excludes OREO related to government insured mortgages. (c) Represents tax credit investments accounted for under the equity method. For assets measured on a nonrecurring basis which were still held on the Consolidated Condensed Statements of Condition at period end, the following table provides information about the fair value adjustments recorded during the three months ended March 31, 2019 and 2018 : Net gains/(losses) (Dollars in thousands) 2019 2018 Loans held-for-sale—other consumer $ (200 ) $ — Loans held-for-sale—SBAs and USDA (683 ) (206 ) Loans held-for-sale—first mortgages 15 5 Loans, net of unearned income (a) 200 502 OREO (b) 35 (1,160 ) Other assets (c) (675 ) (1,137 ) $ (1,308 ) $ (1,996 ) (a) Write-downs on these loans are recognized as part of provision for loan losses. (b) Represents losses of foreclosed properties that were measured subsequent to their initial classification as OREO. Balance excludes OREO related to government insured mortgages. (c) Represents tax credit investments accounted for under the equity method. In first quarter of 2019, FHN recognized $.8 million of impairments for lease assets and $.5 million of impairments for long-lived tangible assets related to restructuring, repositioning, and efficiency efforts within the Corporate segment. In fourth, third, and second quarters of 2018, FHN recognized $1.9 million , $.7 million , and $1.3 million , respectively, of impairments of long-lived assets in its Corporate segment primarily related to optimization efforts for its facilities. In fourth and third quarter 2018 $.5 million and $1.0 million , respectively, of impairment charges previously recognized in 2017 in the Corporate segment were reversed based on the disposition price for the applicable location. Level 3 Measurements The following tables provide information regarding the unobservable inputs utilized in determining the fair value of Level 3 recurring and non-recurring measurements as of March 31, 2019 and December 31, 2018 : (Dollars in thousands) Values Utilized Level 3 Class Fair Value at Valuation Techniques Unobservable Input Range Weighted Average (d) Available-for-sale- securities SBA-interest only strips $ 13,195 Discounted cash flow Constant prepayment rate 12% 12% Bond equivalent yield 15%- 16% 15% Loans held-for-sale - residential real estate 16,270 Discounted cash flow Prepayment speeds - First mortgage 2% - 10% 3% Prepayment speeds - HELOC 5% - 12% 7.5% Foreclosure losses 50% - 66% 64% Loss severity trends - First mortgage 3% - 25% of UPB 17% Loss severity trends - HELOC 50% - 100% of UPB 50% Loans held-for-sale- unguaranteed interest in SBA loans 1,006 Discounted cash flow Constant prepayment rate 8% - 12% 10% Bond equivalent yield 9% 9% Derivative liabilities, other 28,970 Discounted cash flow Visa covered litigation resolution amount $5.0 billion - $5.8 billion $5.6 billion Probability of resolution scenarios 15% - 25% 22% Time until resolution 18 - 48 months 33 months Loans, net of unearned 59,657 Appraisals from comparable properties Marketability adjustments for specific properties 0% - 10% of appraisal NM Other collateral valuations Borrowing base certificates adjustment 20% - 50% of gross value NM Financial Statements/Auction values adjustment 0% - 25% of reported value NM OREO (b) 20,676 Appraisals from comparable properties Adjustment for value changes since appraisal 0% - 10% of appraisal NM Other assets (c) 13,962 Discounted cash flow Adjustments to current sales yields for specific properties 0% - 15% adjustment to yield NM Appraisals from comparable properties Marketability adjustments for specific properties 0% - 25% of appraisal NM NM - Not meaningful. (a) Represents carrying value of loans for which adjustments are required to be based on the appraised value of the collateral less estimated costs to sell. Write-downs on these loans are recognized as part of provision for loan losses. (b) Represents the fair value of foreclosed properties that were measured subsequent to their initial classification as OREO. Balance excludes OREO related to government insured mortgages. (c) Represents tax credit investments accounted for under the equity method. (d) Weighted averages are determined by the relative fair value of the instruments or the relative contribution to an instrument's fair value. (Dollars in thousands) Values Utilized Level 3 Class Fair Value at Valuation Techniques Unobservable Input Range Weighted Average (d) Available-for-sale- securities SBA-interest only strips $ 9,902 Discounted cash flow Constant prepayment rate 11% - 12% 11% Bond equivalent yield 14% - 15% 14% Loans held-for-sale - residential real estate 16,815 Discounted cash flow Prepayment speeds - First mortgage 2% - 10% 3% Prepayment speeds - HELOC 5% - 12% 7.5% Foreclosure losses 50% - 66% 63% Loss severity trends - First mortgage 2% - 25% of UPB 17% Loss severity trends - HELOC 50% - 100% of UPB 50% Loans held-for-sale- unguaranteed interest in SBA loans 1,011 Discounted cash flow Constant prepayment rate 8% - 12% 10% Bond equivalent yield 9% 9% Derivative liabilities, other 31,540 Discounted cash flow Visa covered litigation resolution amount $5.0 billion - $5.8 billion $5.6 billion Probability of resolution scenarios 10% - 25% 23% Time until resolution 18 - 48 months 36 months Loans, net of unearned 48,259 Appraisals from comparable properties Marketability adjustments for specific properties 0% - 10% of appraisal NM Other collateral valuations Borrowing base certificates adjustment 20% - 50% of gross value NM Financial Statements/Auction values adjustment 0% - 25% of reported value NM OREO (b) 22,387 Appraisals from comparable properties Adjustment for value changes since appraisal 0% - 10% of appraisal NM Other assets (c) 8,845 Discounted cash flow Adjustments to current sales yields for specific properties 0% - 15% adjustment to yield NM Appraisals from comparable properties Marketability adjustments for specific properties 0% - 25% of appraisal NM NM - Not meaningful. (a) Represents carrying value of loans for which adjustments are required to be based on the appraised value of the collateral less estimated costs to sell. Write-downs on these loans are recognized as part of provision for loan losses. (b) Represents the fair value of foreclosed properties that were measured subsequent to their initial classification as OREO. Balance excludes OREO related to government insured mortgages. (c) Represents tax credit investments accounted for under the equity method. (d) Weighted averages are determined by the relative fair value of the instruments or the relative contribution to an instrument's fair value. Securities AFS . Increases (decreases) in estimated prepayment rates and bond equivalent yields negatively (positively) affect the value of SBA interest only strips. Management additionally considers whether the loans underlying related SBA-interest only strips are delinquent, in default or prepaying, and adjusts the fair value down 20 - 100% depending on the length of time in default. Loans held-for-sale. Foreclosure losses and prepayment rates are significant unobservable inputs used in the fair value measurement of FHN’s residential real estate loans held-for-sale. Loss severity trends are also assessed to evaluate the reasonableness of fair value estimates resulting from discounted cash flows methodologies as well as to estimate fair value for newly repurchased loans and loans that are near foreclosure. Significant increases (decreases) in any of these inputs in isolation would result in significantly lower (higher) fair value measurements. All observable and unobservable inputs are re-assessed quarterly. Increases (decreases) in estimated prepayment rates and bond equivalent yields negatively (positively) affect the value of unguaranteed interests in SBA loans. Unguaranteed interest in SBA loans held-for-sale are carried at less than the outstanding balance due to credit risk estimates. Credit risk adjustments may be reduced if prepayment is likely or as consistent payment history is realized. Management also considers other factors such as delinquency or default and adjusts the fair value accordingly. Derivative liabilities. In conjunction with the sales of portions of its Visa Class B shares, FHN and the purchasers entered into derivative transactions whereby FHN will make, or receive, cash payments whenever the conversion ratio of the Visa Class B shares into Visa Class A shares is adjusted. FHN uses a discounted cash flow methodology in order to estimate the fair value of FHN’s derivative liabilities associated with its prior sales of Visa Class B shares. The methodology includes estimation of both the resolution amount for Visa’s Covered Litigation matters as well as the length of time until the resolution occurs. Significant increases (decreases) in either of these inputs in isolation would result in significantly higher (lower) fair value measurements for the derivative liabilities. Additionally, FHN performs a probability weighted multiple resolution scenario to calculate the estimated fair value of these derivative liabilities. Assignment of higher (lower) probabilities to the larger potential resolution scenarios would result in an increase (decrease) in the estimated fair value of the derivative liabilities. Since this estimation process requires application of judgment in developing significant unobservable inputs used to determine the possible outcomes and the probability weighting assigned to each scenario, these derivatives have been classified within Level 3 in fair value measurements disclosures. Loans, net of unearned income and Other Real Estate Owned. Collateral-dependent loans and OREO are primarily valued using appraisals based on sales of comparable properties in the same or similar markets. Other collateral (receivables, inventory, equipment, etc.) is valued through borrowing base certificates, financial statements and/or auction valuations. These valuations are discounted based on the quality of reporting, knowledge of the marketability/collectability of the collateral and historical disposition rates. Other assets – tax credit investments. The estimated fair value of tax credit investments accounted for under the equity method is generally determined in relation to the yield (i.e., future tax credits to be received) an acquirer of these investments would expect in relation to the yields experienced on current new issue and/or secondary market transactions. Thus, as tax credits are recognized, the future yield to a market participant is reduced, resulting in consistent impairment of the individual investments. Individual investments are reviewed for impairment quarterly, which may include the consideration of additional marketability discounts related to specific investments which typically includes consideration of the underlying property’s appraised value. Fair Value Option FHN has elected the fair value option on a prospective basis for almost all types of mortgage loans originated for sale purposes under the Financial Instruments Topic (“ASC 825”) except for mortgage origination operations which utilize the platform acquired from CBF. FHN determined that the election reduces certain timing differences and better matches changes in the value of such loans with changes in the value of derivatives and forward delivery commitments used as economic hedges for these assets at the time of election. Repurchased loans are recognized within loans held-for-sale at fair value at the time of repurchase, which includes consideration of the credit status of the loans and the estimated liquidation value. FHN has elected to continue recognition of these loans at fair value in periods subsequent to reacquisition. Due to the credit-distressed nature of the vast majority of repurchased loans and the related loss severities experienced upon repurchase, FHN believes that the fair value election provides a more timely recognition of changes in value for these loans that occur subsequent to repurchase. Absent the fair value election, these loans would be subject to valuation at the LOCOM value, which would prevent subsequent values from exceeding the initial fair value, determined at the time of repurchase, but would require recognition of subsequent declines in value. Thus, the fair value election provides for a more timely recognition of any potential future recoveries in asset values while not affecting the requirement to recognize subsequent declines in value. The following tables reflect the differences between the fair value carrying amount of residential real estate loans held-for-sale measured at fair value in accordance with management’s election and the aggregate unpaid principal amount FHN is contractually entitled to receive at maturity. March 31, 2019 (Dollars in thousands) Fair value carrying amount Aggregate unpaid principal Fair value carrying amount less aggregate unpaid principal Residential real estate loans held-for-sale reported at fair value: Total loans $ 15,751 $ 22,568 $ (6,817 ) Nonaccrual loans 4,382 7,761 (3,379 ) Loans 90 days or more past due and still accruing — — — December 31, 2018 (Dollars in thousands) Fair value carrying amount Aggregate unpaid principal Fair value carrying amount less aggregate unpaid principal Residential real estate loans held-for-sale reported at fair value: Total loans $ 16,273 $ 23,567 $ (7,294 ) Nonaccrual loans 4,536 8,128 (3,592 ) Loans 90 days or more past due and still accruing 171 281 (110 ) Assets and liabilities accounted for under the fair value election are initially measured at fair value with subsequent changes in fair value recognized in earnings. Such changes in the fair value of assets and liabilities for which FHN elected the fair value option are included in current period earnings with classification in the income statement line item reflected in the following table: Three Months Ended (Dollars in thousands) 2019 2018 Changes in fair value included in net income: Mortgage banking noninterest income Loans held-for-sale $ 495 $ 169 For the three months ended March 31, 2019 , and 2018 , the amounts for residential real estate loans held-for-sale included gains of $.3 million in pretax earnings that are attributable to changes in instrument-specific credit risk. The portion of the fair value adjustments related to credit risk was determined based on estimated default rates and estimated loss severities. Interest income on residential real estate loans held-for-sale measured at fair value is calculated based on the note rate of the loan and is recorded in the interest income section of the Consolidated Condensed Statements of Income as interest on loans held-for-sale. FHN has elected to account for retained interest-only strips from guaranteed SBA loans recorded in available-for-sale securities at fair value through earnings. Since these securities are subject to the risk that prepayments may result in FHN not recovering all or a portion of its recorded investment, the fair value election results in a more timely recognition of the effects of estimated prepayments through earnings rather than being recognized through other comprehensive income with periodic review for other-than-temporary impairment. Gains or losses are recognized through fixed income revenues and are presented in the recurring measurements table. Determination of Fair Value In accordance with ASC 820-10-35, fair values are based on the price that would be received to sell an asset or paid to transfer a liability in an orderly transaction between market participants at the measurement date. The following describes the assumptions and methodologies used to estimate the fair value of financial instruments recorded at fair value in the Consolidated Condensed Statements of Condition and for estimating the fair value of financial instruments for which fair value is disclosed under ASC 825-10-50. Short-term financial assets. Federal funds sold, securities purchased under agreements to resell, and interest bearing deposits with other financial institutions and the Federal Reserve are carried at historical cost. The carrying amount is a reasonable estimate of fair value because of the relatively short time between the origination of the instrument and its expected realization. Trading securities and trading liabilities. Trading securities and trading liabilities are recognized at fair value through current earnings. Trading inventory held for broker-dealer operations is included in trading securities and trading liabilities. Broker-dealer long positions are valued at bid price in the bid-ask spread. Short positions are valued at the ask price. Inventory positions are valued using observable inputs including current market transactions, LIBOR and U.S. treasury curves, credit spreads, and consensus prepayment speeds. Trading loans are valued using observable inputs including current market transactions, swap rates, mortgage rates, and consensus prepayment speeds. Trading securities also include retained interests in prior mortgage securitizations that qualify as financial assets, which include primarily principal-only strips. FHN uses inputs including yield curves, credit spreads, and prepayment speeds to determine the fair value of principal-only strips. Securities available-for-sale. Securities available-for-sale includes the investment portfolio accounted for as available-for-sale under ASC 320-10-25. Valuations of available-for-sale securities are performed using observable inputs obtained from market transactions in similar securities. Typical inputs include LIBOR and U.S. treasury curves, consensus prepayment estimates, and credit spreads. When available, broker quotes are used to support these valuations. Interest only strips are valued at elected fair value based on an income approach using an internal valuation model. The internal valuation model includes assumptions regarding projections of future cash flows, prepayment rates, default rates and interest only strip terms. These securities bear the risk of loan prepayment or default that may result in the Company not recovering all or a portion of its recorded investment. When appropriate, valuations are adjusted for various factors including default or prepayment status of the underlying SBA loans. Because of the inherent uncertainty of valuation, those estimated values may be higher or lower than the values that would have been used had a ready market for the securities existed, and may change in the near term. Loans held-for-sale. Residential real estate loans held-for-sale are valued using current transaction prices and/or values on similar assets when available, including committed bids for specific loans or loan portfolios. Uncommitted bids may be adjusted based on other available market information. For all other loans FHN determines the fair value of residential real estate loans held-for-sale using a discounted cash flow model which incorporates both observable and unobservable inputs. Inputs include current mortgage rates for similar products, estimated prepayment rates, foreclosure losses, and various loan performance measures (delinquency, LTV, credit score). Adjustments for delinquency and other differences in loan characteristics are typically reflected in the model’s discount rates. Loss severity trends and the value of underlying collateral are also considered in assessing the appropriate fair value for severely delinquent loans and loans in foreclosure. The valuation of HELOCs also incorporates estimated cancellation rates for loans expected to become delinquent. Non-mortgage consumer loans held-for-sale are valued using committed bids for specific loans or loan portfolios or current market pricing for similar assets with adjustments for differences in credit standing (delinquency, historical default rates for similar loans), yield, collateral values and prepayment rates. If pricing for similar assets is not available, a discounted cash flow methodology is utilized, which incorporates all of these factors into an estimate of investor required yield for the discount rate. The Company utilizes quoted market prices of similar instruments or broker and dealer quotations to value the SBA and USDA guaranteed loans. The Company values SBA-unguaranteed interests in loans held-for-sale based on individual loan characteristics, such as industry type and pay history which generally follows an income approach. Furthermore, these valuations are adjusted for changes in prepayment estimates and are reduced due to restrictions on trading. The fair value of other non-residential real estate loans held-for-sale is approximated by their carrying values based on current transaction values. Collateral-Dependent loans. For loans measured using the estimated fair value of collateral less costs to sell, fair value is estimated using appraisals of the collateral. Collateral values are monitored and additional write-downs are recognized if it is determined that the estimated collateral values have declined further. Estimated costs to sell are based on current amounts of disposal costs for similar assets. Carrying value is considered to reflect fair value for these loans. Derivative assets and liabilities . The fair value for forwards and futures contracts is based on current transactions involving identical securities. Futures contracts are exchange-traded and thus have no credit risk factor assigned as the risk of non-performance is limited to the clearinghouse used. Valuations of other derivatives (primarily interest rate related swaps) are based on inputs observed in active markets for similar instruments. Typical inputs include the LIBOR curve, Overnight Indexed Swap (“OIS”) curve, option volatility, and option skew. In measuring the fair value of these derivative assets and liabilities, FHN has elected to consider credit risk based on the net exposure to individual counterparties. Credit risk is mitigated for these instruments through the use of mutual margining and master netting agreements as well as collateral posting requirements. For derivative contracts with daily cash margin requirements that are considered settlements, the daily margin amount is netted within derivative assets or liabilities. Any remaining credit risk related to interest rate derivatives is considered in determining fair value through evaluation of additional factors such as customer loan grades and debt ratings. Foreign currency related derivatives also utilize observable exchange rates in the determination of fair value. The determination of fair value for FHN’s derivative liabilities associated with its prior sales of Visa Class B shares are classified within Level 3 in the fair value measurements disclosure as previously discussed in the unobservable inputs discussion. OREO. OREO primarily consists of properties that have been acquired in satisfaction of debt. These properties are carried at the lower of the outstanding loan amount or estimated fair value less estimated costs to sell the real estate. Estimated fair value is determined using appraised values with subsequent adjustments for deterioration in values that are not reflected in the most recent appraisal. Other assets. For disclosure purposes, other assets consist of tax credit investments, FRB and FHLB Stock, deferred compensation mutual funds and equity investments (including other mutual funds) with readily determinable fair values. Tax credit investments accounted for under the equity method are written down to estimated fair value quarterly based on the estimated value of the associated tax credits which incorporates estimates of required yield for hypothetical investors. The fair value of all ot

Restructuring, Repositioning, a

Restructuring, Repositioning, and Efficiency	3 Months Ended
	Mar. 31, 2019
Restructuring and Related Activities [Abstract]
Restructuring, Repositioning, and Efficiency	Restructuring, Repositioning, and Efficiency In first quarter 2019, FHN initiated a company-wide review of business practices with the goal of optimizing its expense base to improve profitability and create capacity to reinvest savings into technology and revenue production activities. Restructuring, repositioning, and efficiency charges related to these corporate-driven actions were $12.2 million in first quarter 2019 and are included in the corporate segment. Significant expenses recognized in the quarter resulted from the following actions: • Severance and other employee costs of $6.5 million primarily related to efficiency initiatives within corporate and bank services functions which are classified as Employee compensation, incentives and benefits within noninterest expense. • Expense of $4.3 million largely related to the identification of efficiency opportunities within the organization which is reflected in Professional fees. Settlement of the obligations arising from current initiatives will be funded from operating cash flows. Total expense recognized for the three months ended March 31, 2019 is presented in the table below: Dollars in thousands Total Expense Employee compensation, incentives and benefits $ 6,505 Professional fees 4,295 Occupancy 817 Other (a) 535 Total restructuring and repositioning charges $ 12,152 (a) Primarily relates to costs associated with asset impairments.

Financial Information (Policies

Financial Information (Policies)	3 Months Ended
	Mar. 31, 2019
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Basis Of Accounting	Basis of Accounting. The unaudited interim consolidated condensed financial statements of First Horizon National Corporation (“FHN”), including its subsidiaries, have been prepared in conformity with accounting principles generally accepted in the United States of America and follow general practices within the industries in which it operates. This preparation requires management to make estimates and assumptions that affect the amounts reported in the financial statements and accompanying notes. These estimates and assumptions are based on information available as of the date of the financial statements and could differ from actual results. In the opinion of management, all necessary adjustments have been made for a fair presentation of financial position and results of operations for the periods presented. These adjustments are of a normal recurring nature unless otherwise disclosed in this Quarterly Report on Form 10-Q. The operating results for the interim 2019 period are not necessarily indicative of the results that may be expected going forward. For further information, refer to the audited consolidated financial statements in Exhibit 13 to FHN’s Annual Report on Form 10-K for the year ended December 31, 2018.
Revenues	Revenues. Revenue is recognized when the performance obligations under the terms of a contract with a customer are satisfied in an amount that reflects the consideration FHN expects to be entitled. FHN derives a significant portion of its revenues from fee-based services. Noninterest income from transaction-based fees is generally recognized immediately upon completion of the transaction. Noninterest income from service-based fees is generally recognized over the period in which FHN provides the service. Any services performed over time generally require that FHN render services each period and therefore FHN measures progress in completing these services based upon the passage of time and recognizes revenue as invoiced.
Lessee	Leases. At inception, all arrangements are evaluated to determine if they contain a lease, which is defined as a contract, or part of a contract, that conveys the right to control the use of identified property, plant, or equipment for a period of time in exchange for consideration. Control is deemed to exist when a lessor has granted and a lessee has received both the right to obtain substantially all of the economic benefits from use of the identified asset and the right to direct the use of the identified asset throughout the period of use. Lessee. As a lessee, FHN recognizes lease (right-of-use) assets and lease liabilities for all leasing arrangements with lease terms that are greater than one year. The lease asset and lease liability are recognized at the present value of estimated future lease payments, including estimated renewal periods, with the discount rate reflecting a fully-collateralized rate matching the estimated lease term. Renewal options are included in the estimated lease term if they are considered reasonably certain of exercise. Periods covered by termination options are included in the lease term if it is reasonably certain they will not be exercised. Additionally, prepaid or accrued lease payments, lease incentives and initial direct costs related to lease arrangements are recognized within the right-of-use asset. Each lease is classified as a financing or operating lease which depends on the relationship of the lessee’s rights to the economic value of the leased asset. For finance leases, interest on the lease liability is recognized separately from amortization of the right-of-use asset in earnings, resulting in higher expense in the earlier portion of the lease term. For operating leases, a single lease cost is calculated so that the cost of the lease is allocated over the lease term on a generally straight-line basis. Substantially all of FHN’s lessee arrangements are classified as operating leases. For leases with a term of 12 months or less, FHN does not to recognize lease assets and lease liabilities and expense is generally recognized on a straight-line basis over the lease term. Lease assumptions and classification are reassessed upon the occurrence of events that result in changes to the estimated lease term or consideration. Modifications to lease contracts are evaluated to determine 1) if a right to use an additional asset has been obtained, 2) if only the lease term and/or consideration have been revised or 3) if a full or partial termination has occurred. If an additional right-of use-asset has been obtained, the modification is treated as a separate contract and its classification is evaluated as a new lease arrangement. If only the lease term or consideration are changed, the lease liability is revalued with an offset to the lease asset and the lease classification is re-assessed. If a modification results in a full or partial termination of the lease, the lease liability is revalued through earnings along with a proportionate reduction in the value of the related lease asset and subsequent expense recognition is similar to a new lease arrangement. Lease assets are evaluated for impairment when triggering events occur, such as a change in management intent regarding the continued occupation of the leased space. If a lease asset is impaired, it is written down to the present value of estimated future cash flows and the prospective expense recognition for that lease follows the accelerated expense recognition methodology applicable to finance leases, even if it remains classified as an operating lease. Sublease arrangements are accounted for consistent with the lessor accounting described below. Sublease arrangements are evaluated to determine if changes to estimates for the primary lease are warranted or if the sublease terms reflect impairment of the related lease asset. Lease assets are recognized in Other assets and lease liabilities are recognized in Other liabilities in the Consolidated Condensed Statements of Condition. Since substantially all of its leasing arrangements relate to real estate, FHN records lease expense, and any related sublease income, within Occupancy expense in the Consolidated Condensed Statements of Income.
Lessor	Leases. At inception, all arrangements are evaluated to determine if they contain a lease, which is defined as a contract, or part of a contract, that conveys the right to control the use of identified property, plant, or equipment for a period of time in exchange for consideration. Control is deemed to exist when a lessor has granted and a lessee has received both the right to obtain substantially all of the economic benefits from use of the identified asset and the right to direct the use of the identified asset throughout the period of use. Lessor. As a lessor, FHN also evaluates its lease arrangements to determine whether a finance lease or an operating lease exists and utilizes the rate implicit in the lease arrangement as the discount rate to calculate the present value of future cash flows. Depending upon the terms of the individual agreements, finance leases represent either sales-type or direct financing leases, both of which require de-recognition of the asset being leased with offsetting recognition of a lease receivable that is evaluated for impairment similar to loans. Currently, all of FHN’s lessor arrangements are considered operating leases. Lease income for operating leases is recognized over the life of the lease, generally on a straight line basis. Lease incentives and initial direct costs are capitalized and amortized over the estimated life of the lease. Lease income is not significant for any reporting periods and is classified as a reduction of Occupancy expense in the Consolidated Condensed Statements of Income.
Summary of Accounting Changes and Accounting Changes Issued But Not Currently Effective	Summary of Accounting Changes. In February 2016, the FASB issued ASU 2016-02, “Leases,” which requires a lessee to recognize in its statement of condition a liability to make lease payments (the lease liability) and a right-of-use asset representing its right to use the underlying asset for the lease term. ASU 2016-02 leaves lessor accounting largely unchanged from prior standards. For leases with a term of 12 months or less, a lessee is permitted to make an accounting policy election by class of underlying asset not to recognize lease assets and lease liabilities. If a lessee makes this election, it should recognize lease expense for such leases generally on a straight-line basis over the lease term. All other leases must be classified as financing or operating leases which depends on the relationship of the lessee’s rights to the economic value of the leased asset. For finance leases, interest on the lease liability is recognized separately from amortization of the right-of-use asset in earnings, resulting in higher expense in the earlier portion of the lease term. For operating leases, a single lease cost is calculated so that the cost of the lease is allocated over the lease term on a generally straight-line basis. In July 2018, the FASB issued ASU 2018-11, “Leases - Targeted Improvements,” which provides an election for a cumulative effect adjustment to retained earnings upon initial adoption of ASU 2016-02. Alternatively, under the initial guidance of ASU 2016-02, lessees and lessors are required to recognize and measure leases at the beginning of the earliest comparative period presented using a modified retrospective approach. Both adoption alternatives include a number of optional practical expedients that entities may elect to apply, which would result in continuing to account for leases that commence before the effective date in accordance with previous requirements (unless the lease is modified) except that lessees are required to recognize a right-of-use asset and a lease liability for all operating leases at each reporting date based on the present value of the remaining minimum rental payments that were tracked and disclosed under previous requirements. ASU 2016-02 also requires expanded qualitative and quantitative disclosures to assess the amount, timing, and uncertainty of cash flows arising from lease arrangements. ASU 2016-02 and ASU 2018-11 are effective for fiscal years beginning after December 15, 2018, including interim periods within those fiscal years. Upon adoption, FHN utilized the cumulative effect transition alternative provided by ASU 2018-11. FHN utilized the lease classification practical expedients and the short-term lease exemption upon adoption. FHN also has elected to determine the discount rate on leases as of the effective date and elected to use hindsight in determining lease terms as well as impairments of lease assets resulting from lease abandonments upon adoption. The table below summarizes the impact of adopting ASU 2016-02 as of January 1, 2019, for line items in the Consolidated Condensed Statements of Condition. Lease assets of approximately $185 million are included in Other Assets. Lease liabilities of approximately $204 million are included in Other Liabilities. The after-tax decrease in Undivided Profits reflects the recognition of deferred gains associated with prior sale-leaseback transactions, revisions to the estimated useful lives of leasehold improvements and adjustments of lease expense to reflect revised lease duration estimates. (Dollars in thousands) January 1, 2019 Loans, net of unearned income $ 3,450 Premises and equipment, net 2,718 Other assets 183,884 Other liabilities (191,010 ) Undivided profits 1,011 In August 2018, the FASB issued ASU 2018-15, “Customer’s Accounting for Implementation Costs Incurred in a Cloud Computing Arrangement That Is a Service Contract,” which aligns the requirements for capitalizing implementation costs incurred in a hosting arrangement that is a service contract with the requirements for capitalizing implementation costs incurred to develop or obtain internal-use software (and hosting arrangements that include an internal use software license). Capitalized implemented costs are required to be expensed over the term of the hosting arrangement which includes the non-cancellable period of the arrangement plus periods covered by (1) an option to extend the arrangement if the customer is reasonably certain to exercise that option, (2) an option to terminate the arrangement if the customer is reasonably certain not to exercise the termination option, and (3) an option to extend (or not to terminate) the arrangement in which exercise of the option is in the control of the vendor. ASU 2018-15 also requires application of the impairment guidance applicable to long-lived assets to the capitalized implementation costs. Amortization expense related to capitalized implementation costs must be presented in the same line item in the statement of income as the fees associated with the hosting element (service) of the arrangement and payments for capitalized implementation costs will be classified in the statement of cash flows in the same manner as payments made for fees associated with the hosting element. Capitalized implementation costs will be presented in the statement of financial position in the same line item that a prepayment for the fees of the associated hosting arrangement would be presented. ASU 2018-15 is effective for fiscal years beginning after December 15, 2019 with early adoption permitted. Adoption may be either fully retrospective or prospective only. FHN elected early adoption of ASU 2018-15 effective January 1, 2019 using the prospective transition method and the effects of adoption were not significant. Accounting Changes Issued but Not Currently Effective In April 2019, the FASB issued ASU 2019-04, “Codification Improvements to Topic 326, Financial Instruments-Credit Losses, Topic 815, Derivatives and Hedging, and Topic 825, Financial Instruments,” which makes several revisions and clarifications to the accounting for these items. The revisions related to ASU 2016-03 (Topic 326) are discussed below. ASU 2019-04 clarifies several aspects of fair hedge accounting, including the application to partial term fair value hedges. ASU 2019-04 provides an election regarding the timing for amortization of basis adjustments to hedged items in fair value hedges, indicating that amortization may, but is not required to, commence prior to the end of the hedge relationship. ASU 2019-04 also provides additional guidance related to the application of the hypothetical derivative method and first-payments-received method in cash flow hedges. Further, ASU 2019-04 indicates that remeasurement of an equity security without a readily determinable fair value when an orderly transaction is identified for an identical or similar investment of the same issuer represents a non-recurring fair value measurement and the related disclosure requirements apply to the remeasurement event. The hedging updates are effective at the beginning of the first annual reporting period after issuance with early adoption permitted. The financial instruments measurement and disclosure changes are effective for fiscal years and interim periods beginning after December 15, 2019 with early adoption permitted. FHN will early adopt these portions of ASU 2019-04 in second quarter 2019 and the effects will not be significant based on its existing accounting practices. In June 2016, the FASB issued ASU 2016-13, “Measurement of Credit Losses on Financial Instruments,” which revises the measurement and recognition of credit losses for assets measured at amortized cost (e.g., held-to-maturity (“HTM”) loans and debt securities) and available-for-sale (“AFS”) debt securities. Under ASU 2016-13, for assets measured at amortized cost, the current expected credit loss (“CECL”) is measured as the difference between amortized cost and the net amount expected to be collected. This represents a departure from existing GAAP as the “incurred loss” methodology for recognizing credit losses delays recognition until it is probable a loss has been incurred. Under CECL the full amount of expected credit losses will be recognized at the time of loan origination. The measurement of current expected credit losses is based on relevant information about past events, including historical experience, current conditions, and reasonable and supportable forecasts that affect the collectability of the reported amount. Additionally, current disclosures of credit quality indicators in relation to the amortized cost of financing receivables will be further disaggregated by year of origination. ASU 2016-13 leaves the methodology for measuring credit losses on AFS debt securities largely unchanged, with the maximum credit loss representing the difference between amortized cost and fair value. However, such credit losses will be recognized through an allowance for credit losses, which permits recovery of previously recognized credit losses if circumstances change. ASU 2016-13 also revises the recognition of credit losses for purchased financial assets with a more-than insignificant amount of credit deterioration since origination (“PCD assets”). For PCD assets, the initial allowance for credit losses is added to the purchase price. Only subsequent changes in the allowance for credit losses are recorded as a credit loss expense for PCD assets. Interest income for PCD assets will be recognized based on the effective interest rate, excluding the discount embedded in the purchase price that is attributable to the acquirer’s assessment of credit losses at acquisition. Currently, credit losses for purchased credit-impaired assets are included in the initial basis of the assets with subsequent declines in credit resulting in expense while subsequent improvements in credit are reflected as an increase in the future yield from the assets. For non-PCD assets, expected credit losses will be recognized through earnings upon acquisition and the entire premium of discount will be accreted to interest income over the remaining life of the loan. The provisions of ASU 2016-13 will be generally adopted through a cumulative-effect adjustment to retained earnings as of the beginning of the first reporting period in the year of adoption. Prospective implementation is required for debt securities for which an other-than-temporary-impairment (“OTTI”) had been previously recognized. Amounts previously recognized in accumulated other comprehensive income (“AOCI”) as of the date of adoption that relate to improvements in cash flows expected to be collected will continue to be accreted into income over the remaining life of the asset. Recoveries of amounts previously written off relating to improvements in cash flows after the date of adoption will be recorded in earnings when received. A prospective transition approach will be used for existing PCD assets where, upon adoption, the amortized cost basis will be adjusted to reflect the addition of the allowance for credit losses. Thus, an entity will not be required to reassess its purchased financial assets that exist as of the date of adoption to determine whether they would have met at acquisition the new criteria of more-than-insignificant credit deterioration since origination. An entity will accrete the remaining noncredit discount (based on the revised amortized cost basis) into interest income at the effective interest rate at the adoption date. ASU 2016-13 is effective for fiscal years beginning after December 15, 2019, including interim periods within those fiscal years. FHN continues to evaluate the impact of ASU 2016-13, and is not currently able to reasonably estimate the impact the adoption will have on its consolidated financial position, results of operations, or cash flows. Adoption of ASU 2016-13 is likely to lead to significant changes in accounting policies and procedures related to FHN’s ALLL, and it is possible that the impact of the adoption could be material to FHN’s consolidated financial position and results of operations. To date, the Company has completed a gap analysis, established a formal governance structure for the project, selected loss estimation methodologies for material portfolio segments, selected a software solution to serve as its CECL platform, and is engaged in model development activities. FHN intends to perform parallel calculations and analysis in the latter half of 2019. ASU 2019-04 provides an election to either not measure or measure separately an allowance for credit losses for accrued interest receivable (“AIR"). Entities electing to not measure an allowance for AIR must write off uncollectible interest in a timely manner. Additionally, an election is provided for the write off of uncollectible interest to be recorded either as a reversal of interest income or a charge against the allowance for credit losses or a combination of both. Disclosures are required depending upon which elections are made. ASU 2019-04 also clarifies that when loans and securities are transferred between balance sheet categories (e.g., loans from held-for-investment to held-for-sale or securities from held-to-maturity to available-for-sale) the associated allowance for credit losses should be reversed to income and prospective accounting follows the requirements for the new classification. Further, ASU 2019-04 clarifies that recoveries should be incorporated within the estimation of the allowance for credit losses. Expected recoveries should not exceed the aggregate amount of prior write offs and expected future write offs. Additionally, for collateral dependent financial assets, the allowance for credit losses that is added to the amortized cost basis should not exceed amounts previously written off. ASU 2019-04 also makes several changes when a discounted cash flow approach is used to measure expected credit losses. ASU 2019-04 removes ASU 2016-03’s prohibition of using projections of future interest rate environments when using a discounted cash flow method to measure expected credit losses on variable-rate financial instruments. If an entity uses projections or expectations of future interest rate environments in estimating expected cash flows, the same assumptions should be used in determining the effective interest rate used to discount those expected cash flows. The effective interest rate should also be adjusted to consider the effects of expected prepayments on the timing of expected future cash flows. ASU 2019-04 provides an election to adjust the effective interest rate used in discounting expected cash flows to isolate credit risk in measuring the allowance for credit losses. Further, the discount rate should not be adjusted for subsequent changes in expected prepayments if a financial asset is restructured in a troubled debt restructuring. Related to collateral-dependent financial assets, ASU 2019-04 requires inclusion of estimated costs to sell in the measurement of expected credit losses in situations where the entity intends to sell rather than operate the collateral. Additionally, the estimated costs to sell should be undiscounted when the entity intends to sell rather than operate the collateral. Finally, ASU 2019-04 specifies that contractual renewal or extension options, except those treated as derivatives, should be included in the determination of the contractual term for a financial asset when included in the original or modified contract as of the reporting date if they are not unconditionally cancellable by the entity. The effective date and transition requirements for these components of ASU 2019-04 are consistent with the requirements for ASU 2016-13 and FHN is incorporating these changes and revisions within its implementation efforts. Based on its current practices for the timely write off uncollectible AIR, FHN intends to not measure an allowance for credit losses for AIR and to continue recognition of related write offs as a reversal of interest income.

Financial Information - (Tables

Financial Information - (Tables)	3 Months Ended
	Mar. 31, 2019
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Schedule of Impact of Adoption of ASU 2016-02	The table below summarizes the impact of adopting ASU 2016-02 as of January 1, 2019, for line items in the Consolidated Condensed Statements of Condition. Lease assets of approximately $185 million are included in Other Assets. Lease liabilities of approximately $204 million are included in Other Liabilities. The after-tax decrease in Undivided Profits reflects the recognition of deferred gains associated with prior sale-leaseback transactions, revisions to the estimated useful lives of leasehold improvements and adjustments of lease expense to reflect revised lease duration estimates. (Dollars in thousands) January 1, 2019 Loans, net of unearned income $ 3,450 Premises and equipment, net 2,718 Other assets 183,884 Other liabilities (191,010 ) Undivided profits 1,011

Acquisitions and Divestitures (

Acquisitions and Divestitures (Tables)	3 Months Ended
	Mar. 31, 2019
Business Combinations [Abstract]
Merger And Integration Expense	Total merger and integration expense recognized for the three months ended March 31, 2019 and 2018 are presented in the table below: Three Months Ended March 31 (Dollars in thousands) 2019 2018 Professional fees (a) $ 1,867 $ 5,633 Employee compensation, incentives and benefits (b) 1,517 5,237 Contract employment and outsourcing (c) — 1,399 Miscellaneous expense (d) 1,187 2,064 All other expense (e) 1,089 17,041 Total $ 5,660 $ 31,374 (a) Primarily comprised of fees for legal, accounting, and merger consultants. (b) Primarily comprised of fees for severance and retention. (c) Primarily relates to fees for temporary assistance for merger and integration activities. (d) Consists of fees for communications and courier, operations services, equipment rentals, depreciation, and maintenance, supplies, travel and entertainment, computer software, advertising and public relations, and occupancy. (e) Primarily relates to contract termination charges, lease buyouts, costs of shareholder matters and asset impairments related to the integration, as well as other miscellaneous expenses.

Investment Securities (Tables)

Investment Securities (Tables)	3 Months Ended
	Mar. 31, 2019
Marketable Securities [Abstract]
Schedule of FHN's Investment Securities	The following tables summarize FHN’s investment securities on March 31, 2019 and December 31, 2018 : March 31, 2019 (Dollars in thousands) Amortized Cost Gross Unrealized Gains Gross Unrealized Losses Fair Value Securities available-for-sale: U.S. treasuries $ 100 $ — $ (1 ) $ 99 Government agency issued mortgage-backed securities (“MBS”) 2,398,177 8,992 (21,360 ) 2,385,809 Government agency issued collateralized mortgage obligations (“CMO”) 1,958,529 2,020 (28,765 ) 1,931,784 Other U.S. government agencies 189,067 1,761 — 190,828 Corporates and other debt 55,266 302 (384 ) 55,184 States and municipalities 38,028 1,395 — 39,423 $ 4,639,167 $ 14,470 $ (50,510 ) 4,603,127 AFS debt securities recorded at fair value through earnings: SBA-interest only strips (a) 13,195 Total securities available-for-sale (b) $ 4,616,322 Securities held-to-maturity: Corporates and other debt $ 10,000 $ — $ (111 ) $ 9,889 Total securities held-to-maturity $ 10,000 $ — $ (111 ) $ 9,889 (a) SBA-interest only strips are recorded at elected fair value. See Note 17 - Fair Value for additional information. (b) Includes $3.9 billion of securities pledged to secure public deposits, securities sold under agreements to repurchase, and for other purposes. December 31, 2018 (Dollars in thousands) Amortized Cost Gross Unrealized Gains Gross Unrealized Losses Fair Value Securities available-for-sale: U.S. treasuries $ 100 $ — $ (2 ) $ 98 Government agency issued MBS 2,473,687 4,819 (58,400 ) 2,420,106 Government agency issued CMO 2,006,488 888 (48,681 ) 1,958,695 Other U.S. government agencies 149,050 809 (73 ) $ 149,786 Corporates and other debt 55,383 388 (461 ) 55,310 State and municipalities 32,473 314 (214 ) 32,573 $ 4,717,181 $ 7,218 $ (107,831 ) 4,616,568 AFS securities recorded at fair value through earnings: SBA-interest only strips (a) 9,902 Total securities available-for-sale (b) $ 4,626,470 Securities held-to-maturity: Corporates and other debt $ 10,000 $ — $ (157 ) $ 9,843 Total securities held-to-maturity $ 10,000 $ — $ (157 ) $ 9,843 (a) SBA-interest only strips are recorded at elected fair value. See Note 17 - Fair Value of Assets and Liabilities for additional information. (b) Includes $3.8 billion of securities pledged to secure public deposits, securities sold under agreements to repurchase, and for other purposes.
Schedule of Amortized Cost And Fair Value By Contractual Maturity	The amortized cost and fair value by contractual maturity for the available-for-sale and held-to-maturity debt securities portfolios on March 31, 2019 are provided below: Held-to-Maturity Available-for-Sale (Dollars in thousands) Amortized Cost Fair Value Amortized Cost Fair Value Within 1 year $ — $ — $ 15,060 $ 14,998 After 1 year; within 5 years — — 229,373 231,160 After 5 years; within 10 years 10,000 9,889 755 3,825 After 10 years — — 37,273 48,746 Subtotal 10,000 9,889 282,461 298,729 Government agency issued MBS and CMO (a) — — 4,356,706 4,317,593 Total $ 10,000 $ 9,889 $ 4,639,167 $ 4,616,322 (a) Expected maturities will differ from contractual maturities because borrowers may have the right to call or prepay obligations with or without call or prepayment penalties.
Schedule of Gross Gains And Losses On Sale From Available For Sale Portfolio	The table below provides information on gross gains and gross losses from debt investment securities for the three months ended March 31 , 2019 and 2018. Three Months Ended (Dollars in thousands) 2019 2018 Gross gains on sales of securities $ — $ 52 Gross (losses) on sales of securities — — Net gain/(loss) on sales of securities (a) $ — $ 52 (a) Cash proceeds for the three months ended March 31, 2018 were not material.
Schedule of Investments Within The Available For Sale Portfolio That Had Unrealized Losses	The following tables provide information on investments within the available-for-sale portfolio that had unrealized losses as of March 31, 2019 and December 31, 2018 : As of March 31, 2019 Less than 12 months 12 months or longer Total (Dollars in thousands) Fair Value Unrealized Losses Fair Value Unrealized Losses Fair Value Unrealized Losses U.S. treasuries $ — $ — $ 99 $ (1 ) $ 99 $ (1 ) Government agency issued MBS 1,542 (13 ) 1,948,718 (21,347 ) 1,950,260 (21,360 ) Government agency issued CMO 863 — 1,699,529 (28,765 ) 1,700,392 (28,765 ) Corporates and other debt — — 40,065 (384 ) 40,065 (384 ) Total temporarily impaired securities $ 2,405 $ (13 ) $ 3,688,411 $ (50,497 ) $ 3,690,816 $ (50,510 ) As of December 31, 2018 Less than 12 months 12 months or longer Total (Dollars in thousands) Fair Value Unrealized Losses Fair Value Unrealized Losses Fair Value Unrealized Losses U.S. treasuries $ — $ — $ 98 $ (2 ) $ 98 $ (2 ) Government agency issued MBS 597,008 (12,335 ) 1,537,106 (46,065 ) 2,134,114 (58,400 ) Government agency issued CMO 290,863 (2,860 ) 1,560,420 (45,821 ) 1,851,283 (48,681 ) Other U.S. government agencies 29,776 (73 ) — — $ 29,776 $ (73 ) Corporates and other debt 25,114 (344 ) 15,008 (117 ) 40,122 (461 ) States and municipalities 17,292 (214 ) — — 17,292 (214 ) Total temporarily impaired securities $ 960,053 $ (15,826 ) $ 3,112,632 $ (92,005 ) $ 4,072,685 $ (107,831 )

Loans (Tables)

Loans (Tables)	3 Months Ended
	Mar. 31, 2019
Receivables [Abstract]
Schedule Of Loans By Portfolio Segment	The following table provides the balance of loans, net of unearned income, by portfolio segment as of March 31, 2019 and December 31, 2018 : March 31 December 31 (Dollars in thousands) 2019 2018 Commercial: Commercial, financial, and industrial $ 17,176,112 $ 16,514,328 Commercial real estate 3,946,943 4,030,870 Consumer: Consumer real estate (a) 6,151,503 6,249,516 Permanent mortgage 209,260 222,448 Credit card & other 506,230 518,370 Loans, net of unearned income $ 27,990,048 $ 27,535,532 Allowance for loan losses 184,911 180,424 Total net loans $ 27,805,137 $ 27,355,108 (a) Balances as of March 31, 2019 and December 31, 2018 , include $15.0 million and $16.2 million of restricted real estate loans, respectively. See Note 14—Variable Interest Entities for additional information.
Certain Loans Acquired In Transfer Not Accounted For As Debt Securities Accretable Yield Movement Schedule Rollforward	The following table presents a rollforward of the accretable yield for the three months ended March 31, 2019 and 2018 : Three Months Ended (Dollars in thousands) 2019 2018 Balance, beginning of period $ 13,375 $ 15,623 Accretion (1,673 ) (2,137 ) Adjustment for payoffs (462 ) (612 ) Adjustment for charge-offs (176 ) (551 ) Increase/(decrease) in accretable yield (a) 2,718 3,178 Other — (178 ) Balance, end of period $ 13,782 $ 15,323 (a) Includes changes in the accretable yield due to both transfers from the nonaccretable difference and the impact of changes in the expected timing and amounts of the cash flows.
Schedule Of Acquired Purchase Credit Impaired Loans By Portfolio Segment	The following table reflects the outstanding principal balance and carrying amounts of the acquired PCI loans as of March 31, 2019 and December 31, 2018 : March 31, 2019 December 31, 2018 (Dollars in thousands) Carrying value Unpaid balance Carrying value Unpaid balance Commercial, financial and industrial $ 34,619 $ 38,575 $ 38,873 $ 44,259 Commercial real estate 8,402 9,301 15,197 17,232 Consumer real estate 28,723 32,464 30,723 34,820 Credit card and other 1,127 1,377 1,627 1,879 Total $ 72,871 $ 81,717 $ 86,420 $ 98,190
Information By Class Related To Individually Impaired Loans	The following tables provide information at March 31, 2019 and December 31, 2018 , by class related to individually impaired loans and consumer TDRs, regardless of accrual status. Recorded investment is defined as the amount of the investment in a loan, excluding any valuation allowance but including any direct write-down of the investment. For purposes of this disclosure, PCI loans and the TRUPS valuation allowance have been excluded. March 31, 2019 December 31, 2018 (Dollars in thousands) Recorded Unpaid Related Recorded Unpaid Related Impaired loans with no related allowance recorded: Commercial: General C&I $ 68,629 $ 71,101 $ — $ 42,902 $ 45,387 $ — Income CRE 1,522 1,522 — 1,589 1,589 — Total $ 70,151 $ 72,623 $ — $ 44,491 $ 46,976 $ — Consumer: HELOC (a) $ 6,548 $ 13,869 $ — $ 8,645 $ 16,648 $ — R/E installment loans (a) 5,910 6,693 — 4,314 4,796 — Permanent mortgage (a) 3,449 5,851 — 3,601 6,003 — Total $ 15,907 $ 26,413 $ — $ 16,560 $ 27,447 $ — Impaired loans with related allowance recorded: Commercial: General C&I $ 11,786 $ 11,786 $ 2,512 $ 2,802 $ 2,802 $ 149 TRUPS 2,838 3,700 925 2,888 3,700 925 Income CRE 357 357 — 377 377 — Total $ 14,981 $ 15,843 $ 3,437 $ 6,067 $ 6,879 $ 1,074 Consumer: HELOC $ 63,546 $ 66,801 $ 8,378 $ 66,482 $ 69,610 $ 11,241 R/E installment loans 43,949 44,898 6,464 38,993 39,851 6,743 Permanent mortgage 65,930 76,289 9,081 67,245 78,010 9,419 Credit card & other 684 684 446 695 695 337 Total $ 174,109 $ 188,672 $ 24,369 $ 173,415 $ 188,166 $ 27,740 Total commercial $ 85,132 $ 88,466 $ 3,437 $ 50,558 $ 53,855 $ 1,074 Total consumer $ 190,016 $ 215,085 $ 24,369 $ 189,975 $ 215,613 $ 27,740 Total impaired loans $ 275,148 $ 303,551 $ 27,806 $ 240,533 $ 269,468 $ 28,814 (a) All discharged bankruptcy loans are charged down to an estimate of net realizable value and do not carry any allowance. Three Months Ended March 31 2019 2018 (Dollars in thousands) Average Interest Average Interest Impaired loans with no related allowance recorded: Commercial: General C&I $ 55,765 $ 180 $ 15,954 $ 175 Income CRE 1,556 13 791 12 Residential CRE — — 248 — Total $ 57,321 $ 193 $ 16,993 $ 187 Consumer: HELOC (a) $ 7,597 $ — $ 9,257 $ — R/E installment loans (a) 5,112 — 3,914 — Permanent mortgage (a) 3,525 — 5,217 — Total $ 16,234 $ — $ 18,388 $ — Impaired loans with related allowance recorded: Commercial: General C&I $ 7,294 $ — $ 22,891 $ — TRUPS 2,863 — 3,047 — Income CRE 367 4 806 — Residential CRE — — 398 — Total $ 10,524 $ 4 $ 27,142 $ — Consumer: HELOC $ 65,013 $ 522 $ 71,654 $ 577 R/E installment loans 41,471 270 42,110 267 Permanent mortgage 66,588 552 77,725 578 Credit card & other 690 5 648 3 Total $ 173,762 $ 1,349 $ 192,137 $ 1,425 Total commercial $ 67,845 $ 197 $ 44,135 $ 187 Total consumer $ 189,996 $ 1,349 $ 210,525 $ 1,425 Total impaired loans $ 257,841 $ 1,546 $ 254,660 $ 1,612 (a) All discharged bankruptcy loans are charged down to an estimate of net realizable value and do not carry any allowance.
Balances Of Commercial Loan Portfolio Classes, Disaggregated By PD Grade	The following tables provide the balances of commercial loan portfolio classes with associated allowance, disaggregated by PD grade as of March 31, 2019 and December 31, 2018 : March 31, 2019 (Dollars in thousands) General C&I Loans to Mortgage Companies TRUPS (a) Income CRE Residential CRE Total Percentage of Total Allowance for Loan Losses PD Grade: 1 $ 635,273 $ — $ — $ 11,997 $ — $ 647,270 3 % $ 100 2 849,658 — — 2,144 26 851,828 4 267 3 720,323 689,936 3,314 291,517 179 1,705,269 8 338 4 1,201,020 478,359 32,498 513,082 112 2,225,071 11 806 5 1,904,650 347,923 96,052 855,280 20,311 3,224,216 15 10,033 6 1,992,100 400,889 33,815 636,472 44,286 3,107,562 15 9,700 7 2,794,923 94,626 11,446 544,211 30,322 3,475,528 17 18,677 8 1,344,591 172,050 — 280,323 24,944 1,821,908 9 20,047 9 1,460,633 104,832 45,117 377,027 17,672 2,005,281 9 16,042 10 492,043 12,579 18,536 73,040 3,924 600,122 3 8,739 11 395,393 — — 63,318 2,112 460,823 2 10,353 12 289,203 146 — 48,454 5,586 343,389 2 6,172 13 223,362 — 5,786 51,615 238 281,001 1 9,652 14,15,16 204,958 — — 37,703 832 243,493 1 21,591 Collectively evaluated for impairment 14,508,130 2,301,340 246,564 3,786,183 150,544 20,992,761 100 132,517 Individually evaluated for impairment 80,415 — 2,838 1,879 — 85,132 — 3,437 Purchased credit-impaired loans 36,825 — — 6,043 2,294 45,162 — 2,141 Total commercial loans $ 14,625,370 $ 2,301,340 $ 249,402 $ 3,794,105 $ 152,838 $ 21,123,055 100 % $ 138,095 December 31, 2018 (Dollars in thousands) General C&I Loans to Mortgage Companies TRUPS (a) Income CRE Residential CRE Total Percentage of Total Allowance for Loan Losses PD Grade: 1 $ 610,177 $ — $ — $ 12,586 $ — $ 622,763 3 % $ 100 2 835,776 — — 1,688 29 837,493 4 274 3 782,362 716,971 — 289,594 147 1,789,074 9 315 4 1,223,092 394,862 43,220 563,243 — 2,224,417 11 686 5 1,920,034 277,814 77,751 798,509 14,150 3,088,258 15 8,919 6 1,722,136 365,341 45,609 657,628 33,759 2,824,473 14 8,141 7 2,690,784 96,603 11,446 538,909 26,135 3,363,877 16 16,906 8 1,337,113 53,224 — 265,901 20,320 1,676,558 8 18,545 9 1,472,852 96,292 45,117 455,184 29,849 2,099,294 10 15,454 10 490,795 13,260 18,536 60,803 3,911 587,305 3 8,675 11 311,967 — — 66,986 788 379,741 2 7,973 12 244,867 9,379 — 82,574 5,717 342,537 2 6,972 13 285,987 — 5,786 55,408 251 347,432 2 10,094 14,15,16 224,853 — — 28,835 837 254,525 1 23,307 Collectively evaluated for impairment 14,152,795 2,023,746 247,465 3,877,848 135,893 20,437,747 100 126,361 Individually evaluated for impairment 45,704 — 2,888 1,966 — 50,558 — 1,074 Purchased credit-impaired loans 41,730 — — 12,730 2,433 56,893 — 2,823 Total commercial loans $ 14,240,229 $ 2,023,746 $ 250,353 $ 3,892,544 $ 138,326 $ 20,545,198 100 % $ 130,258 (a) Balances as of March 31, 2019 and December 31, 2018 , presented net of a $20.2 million valuation allowance.
Loans by FICO Score, Consumer	The following table reflects the percentage of balances outstanding by average, refreshed FICO scores for the HELOC, real estate installment, and permanent mortgage classes of loans as of March 31, 2019 and December 31, 2018 : March 31, 2019 December 31, 2018 HELOC R/E Installment Loans Permanent Mortgage HELOC R/E Installment Loans Permanent Mortgage FICO score 740 or greater 61.0 % 72.2 % 52.0 % 61.4 % 71.3 % 51.8 % FICO score 720-739 8.8 8.3 8.3 8.5 8.8 7.6 FICO score 700-719 7.8 6.9 9.9 7.6 7.0 10.6 FICO score 660-699 10.9 7.2 14.8 10.9 7.6 14.7 FICO score 620-659 5.0 2.7 7.0 5.1 2.8 6.5 FICO score less than 620 (a) 6.5 2.7 8.0 6.5 2.5 8.8 Total 100.0 % 100.0 % 100.0 % 100.0 % 100.0 % 100.0 % (a) For this group, a majority of the loan balances had FICO scores at the time of the origination that exceeded 620 but have since deteriorated as the loans have seasoned.
Accruing And Non-Accruing Loans By Class	The following table reflects accruing and non-accruing loans by class on March 31, 2019 : Accruing Non-Accruing (Dollars in thousands) Current 30-89 Days Past Due 90+ Days Past Due Total Accruing Current 30-89 Days Past Due 90+ Days Past Due Total Non- Accruing Total Loans Commercial (C&I): General C&I $ 14,508,455 $ 7,741 $ 191 $ 14,516,387 $ 61,711 $ 147 $ 10,300 $ 72,158 $ 14,588,545 Loans to mortgage companies 2,301,340 — — 2,301,340 — — — — 2,301,340 TRUPS (a) 246,564 — — 246,564 — — 2,838 2,838 249,402 Purchased credit-impaired loans 33,056 2,210 1,559 36,825 — — — — 36,825 Total commercial (C&I) 17,089,415 9,951 1,750 17,101,116 61,711 147 13,138 74,996 17,176,112 Commercial real estate: Income CRE 3,785,127 292 — 3,785,419 — 45 2,598 2,643 3,788,062 Residential CRE 150,300 238 — 150,538 — 6 — 6 150,544 Purchased credit-impaired loans 7,448 818 71 8,337 — — — — 8,337 Total commercial real estate 3,942,875 1,348 71 3,944,294 — 51 2,598 2,649 3,946,943 Consumer real estate: HELOC 1,380,487 9,735 7,321 1,397,543 48,772 4,223 8,370 61,365 1,458,908 R/E installment loans 4,623,499 10,037 7,982 4,641,518 15,151 2,685 3,395 21,231 4,662,749 Purchased credit-impaired loans 24,480 1,628 3,738 29,846 — — — — 29,846 Total consumer real estate 6,028,466 21,400 19,041 6,068,907 63,923 6,908 11,765 82,596 6,151,503 Permanent mortgage 184,237 1,494 2,579 188,310 11,874 95 8,981 20,950 209,260 Credit card & other: Credit card 193,754 992 969 195,715 — — — — 195,715 Other 305,267 3,067 473 308,807 155 67 211 433 309,240 Purchased credit-impaired loans 717 325 233 1,275 — — — — 1,275 Total credit card & other 499,738 4,384 1,675 505,797 155 67 211 433 506,230 Total loans, net of unearned income $ 27,744,731 $ 38,577 $ 25,116 $ 27,808,424 $ 137,663 $ 7,268 $ 36,693 $ 181,624 $ 27,990,048 (a) TRUPS is presented net of the valuation allowance of $20.2 million . The following table reflects accruing and non-accruing loans by class on December 31, 2018 : Accruing Non-Accruing (Dollars in thousands) Current 30-89 Days Past Due 90+ Days Past Due Total Accruing Current 30-89 Days Past Due 90+ Days Past Due Total Non- Accruing Total Loans Commercial (C&I): General C&I $ 14,153,275 $ 8,234 $ 102 $ 14,161,611 $ 26,325 $ 5,537 $ 5,026 $ 36,888 $ 14,198,499 Loans to mortgage companies 2,023,746 — — 2,023,746 — — — — 2,023,746 TRUPS (a) 247,465 — — 247,465 — — 2,888 2,888 250,353 Purchased credit-impaired loans 39,433 624 1,673 41,730 — — — — 41,730 Total commercial (C&I) 16,463,919 8,858 1,775 16,474,552 26,325 5,537 7,914 39,776 16,514,328 Commercial real estate: Income CRE 3,876,229 626 — 3,876,855 30 — 2,929 2,959 3,879,814 Residential CRE 135,861 — — 135,861 32 — — 32 135,893 Purchased credit-impaired loans 13,308 103 1,752 15,163 — — — — 15,163 Total commercial real estate 4,025,398 729 1,752 4,027,879 62 — 2,929 2,991 4,030,870 Consumer real estate: HELOC 1,443,651 11,653 10,129 1,465,433 49,009 3,314 8,781 61,104 1,526,537 R/E installment loans 4,652,658 10,470 6,497 4,669,625 15,146 1,924 4,474 21,544 4,691,169 Purchased credit-impaired loans 24,096 2,094 5,620 31,810 — — — — 31,810 Total consumer real estate 6,120,405 24,217 22,246 6,166,868 64,155 5,238 13,255 82,648 6,249,516 Permanent mortgage 193,591 2,585 4,562 200,738 11,227 996 9,487 21,710 222,448 Credit card & other: Credit card 188,009 2,133 1,203 191,345 — — — — 191,345 Other 320,551 3,570 526 324,647 110 60 454 624 325,271 Purchased credit-impaired loans 746 611 397 1,754 — — — — 1,754 Total credit card & other 509,306 6,314 2,126 517,746 110 60 454 624 518,370 Total loans, net of unearned income $ 27,312,619 $ 42,703 $ 32,461 $ 27,387,783 $ 101,879 $ 11,831 $ 34,039 $ 147,749 $ 27,535,532 Certain previously reported amounts have been reclassified to agree with current presentation. (a) TRUPS is presented net of the valuation allowance of $20.2 million .
Schedule Of Troubled Debt Restructurings Occurring During The Year	The following tables reflect portfolio loans that were classified as TDRs during the three months ended March 31, 2019 and 2018 : March 31, 2019 March 31, 2018 (Dollars in thousands) Number Pre-Modification Outstanding Recorded Investment Post-Modification Outstanding Recorded Investment Number Pre-Modification Outstanding Recorded Investment Post-Modification Outstanding Recorded Investment Commercial (C&I): General C&I 2 $ 13,895 $ 13,820 5 $ 1,504 $ 1,214 Total commercial (C&I) 2 13,895 13,820 5 1,504 1,214 Consumer real estate: HELOC 19 2,104 2,084 30 2,760 2,733 R/E installment loans 44 5,977 5,934 5 611 612 Total consumer real estate 63 8,081 8,018 35 3,371 3,345 Permanent mortgage 3 1,448 1,479 1 275 273 Credit card & other 15 74 71 41 210 197 Total troubled debt restructurings 83 $ 23,498 $ 23,388 82 $ 5,360 $ 5,029
Schedule Of Troubled Debt Restructurings Within The Previous 12 Months	The following tables present TDRs which re-defaulted during the three months ended March 31, 2019 and 2018 , and as to which the modification occurred 12 months or less prior to the re-default. For purposes of this disclosure, FHN generally defines payment default as 30 or more days past due. March 31, 2019 March 31, 2018 (Dollars in thousands) Number Recorded Investment Number Recorded Investment Consumer real estate: HELOC 1 33 2 69 Total consumer real estate 1 33 2 69 Permanent mortgage — — 1 112 Credit card & other 8 18 14 81 Total troubled debt restructurings 9 $ 51 17 $ 262

Allowance for Loan Losses (Tabl

Allowance for Loan Losses (Tables)	3 Months Ended
	Mar. 31, 2019
Accounts, Notes, Loans and Financing Receivable, Gross, Allowance, and Net [Abstract]
Rollforward Of The Allowance For Loan Losses By Portfolio Segment	The following table provides a rollforward of the allowance for loan losses by portfolio segment for the three months ended March 31, 2019 and 2018 : (Dollars in thousands) C&I Commercial Real Estate Consumer Real Estate Permanent Mortgage Credit Card and Other Total Balance as of January 1, 2019 $ 98,947 $ 31,311 $ 26,439 $ 11,000 $ 12,727 $ 180,424 Charge-offs (3,101 ) (434 ) (2,800 ) (4 ) (4,188 ) (10,527 ) Recoveries 829 57 3,453 588 1,087 6,014 Provision/(provision credit) for loan losses 7,038 3,448 (3,019 ) (1,503 ) 3,036 9,000 Balance as of March 31, 2019 103,713 34,382 24,073 10,081 12,662 184,911 Allowance - individually evaluated for impairment 3,437 — 14,842 9,081 446 27,806 Allowance - collectively evaluated for impairment 98,135 34,382 8,108 1,000 12,067 153,692 Allowance - purchased credit-impaired loans 2,141 — 1,123 — 149 3,413 Loans, net of unearned as of March 31, 2019: Individually evaluated for impairment 83,253 1,879 119,953 69,379 684 275,148 Collectively evaluated for impairment 17,056,034 3,936,727 6,001,704 139,881 504,271 27,638,617 Purchased credit-impaired loans 36,825 8,337 29,846 — 1,275 76,283 Total loans, net of unearned income $ 17,176,112 $ 3,946,943 $ 6,151,503 $ 209,260 $ 506,230 $ 27,990,048 Balance as of January 1, 2018 $ 98,211 $ 28,427 $ 39,823 $ 13,113 $ 9,981 $ 189,555 Charge-offs (2,075 ) (44 ) (1,911 ) (160 ) (4,293 ) (8,483 ) Recoveries 1,519 6 4,383 65 1,149 7,122 Provision/(provision credit) for loan losses 2,583 668 (7,094 ) (34 ) 2,877 (1,000 ) Balance as of March 31, 2018 100,238 29,057 35,201 12,984 9,714 187,194 Allowance - individually evaluated for impairment 4,555 — 23,049 11,311 359 39,274 Allowance - collectively evaluated for impairment 93,603 28,869 11,877 1,673 9,343 145,365 Allowance - purchased credit-impaired loans 2,080 188 275 — 12 2,555 Loans, net of unearned as of March 31, 2018: Individually evaluated for impairment 40,758 2,077 124,975 81,090 702 249,602 Collectively evaluated for impairment 15,705,895 4,201,220 6,194,449 189,631 556,189 26,847,384 Purchased credit-impaired loans 81,655 31,138 36,095 — 3,919 152,807 Total loans, net of unearned income $ 15,828,308 $ 4,234,435 $ 6,355,519 $ 270,721 $ 560,810 $ 27,249,793 Certain previously reported amounts have been reclassified to agree with current presentation.

Intangible Assets (Tables)

Intangible Assets (Tables)	3 Months Ended
	Mar. 31, 2019
Goodwill and Intangible Assets Disclosure [Abstract]
Summary Of Intangible Assets and Accumulated Amortization Included In The Consolidated Statements of Condition	The following is a summary of other intangible assets included in the Consolidated Condensed Statements of Condition: March 31, 2019 December 31, 2018 (Dollars in thousands) Gross Carrying Amount Accumulated Amortization Net Carrying Value Gross Carrying Amount Accumulated Amortization Net Carrying Value Core deposit intangibles $ 157,150 $ (32,955 ) $ 124,195 $ 157,150 $ (28,150 ) $ 129,000 Customer relationships 77,865 (56,744 ) 21,121 77,865 (55,597 ) 22,268 Other (a) 5,622 (2,120 ) 3,502 5,622 (1,856 ) 3,766 Total $ 240,637 $ (91,819 ) $ 148,818 $ 240,637 $ (85,603 ) $ 155,034 (a) Balance primarily includes noncompete covenants, as well as $ .3 million related to state banking licenses not subject to amortization.
Schedule of Estimated Aggregate Amortization Expense for Intangible Assets	As of March 31, 2019 the estimated aggregated amortization expense is expected to be: (Dollars in thousands) Year Amortization Remainder of 2019 $ 18,625 2020 21,159 2021 19,547 2022 17,412 2023 16,117 2024 14,679
Summary Of Gross Goodwill And Accumulated Impairment Losses And Write-Offs Detailed By Reportable Segments	The following is a summary of goodwill by reportable segment included in the Consolidated Condensed Statements of Condition as of March 31, 2019 and December 31, 2018 . (Dollars in thousands) Regional Banking Fixed Income Total December 31, 2017 $ 1,243,885 $ 142,968 $ 1,386,853 Additions (a) 11,648 — 11,648 March 31, 2018 $ 1,255,533 $ 142,968 $ 1,398,501 December 31, 2018 $ 1,289,819 $ 142,968 $ 1,432,787 Additions — — — March 31, 2019 $ 1,289,819 $ 142,968 $ 1,432,787 (a) See Note 2 - Acquisitions and Divestitures for further details regarding goodwill related to acquisitions.

Leases (Tables)

Leases (Tables)	3 Months Ended
	Mar. 31, 2019
Leases [Abstract]
Supplemental Balance Sheet	The following table provides a detail of the classification of FHN's right-of-use ("ROU") assets and lease liabilities included in the Consolidated Condensed Statement of Conditions. (Dollars in thousands) March 31, 2019 Lease Right-of-Use Assets: Classification Operating lease right-of use assets Other assets $ 179,028 Finance lease right-of use assets Other assets 682 Total Lease Right-of Use Assets $ 179,710 Lease Liabilities: Operating lease liabilities Other liabilities $ 198,091 Finance lease liabilities Other liabilities 1,344 Total Lease Liabilities $ 199,435
Components of Lease Expense, Other Information, and Supplemental Cash Flow	The following table details the weighted average remaining lease term and discount rate for FHN's operating and finance leases as of March 31, 2019. Weighted Average Remaining Lease Terms Operating leases 12.38 years Finance leases 7.17 years Weighted Average Discount Rate Operating leases 3.48 % Finance leases 9.96 % The following table provides a detail of the components of lease expense and other lease information for the three months ended March 31, 2019: (Dollars in thousands) Three Months Ended Lease cost Operating lease cost $ 6,183 Finance lease cost: Amortization of right-of-use assets 24 Interest on lease liabilities 33 Short-term lease cost 45 Sublease income (95 ) Total lease cost $ 6,190 Other information (Gain)/loss on right-of-use asset impairment-Operating leases $ 817 Cash paid for amounts included in the measurement of lease liabilities: Operating cash flows from operating leases 5,302 Operating cash flows from finance leases 33 Financing cash flows from finance leases 31 Right-of-use assets obtained in exchange for new lease obligations: Operating leases 2,442 Finance leases —
Maturities of Lease Liabilities, Operating	The following table provides a detail of the maturities of FHN's operating and finance lease liabilities as of March 31, 2019: (Dollars in thousands) March 31, 2019 Remainder of 2019 $ 18,489 2020 23,911 2021 21,630 2022 20,535 2023 19,627 2024 and after 143,048 Total future minimum lease payments 247,240 Less lease liability interest (47,805 ) Present value of net future minimum lease payments $ 199,435
Maturity of Lease Liabilities, Finance	The following table provides a detail of the maturities of FHN's operating and finance lease liabilities as of March 31, 2019: (Dollars in thousands) March 31, 2019 Remainder of 2019 $ 18,489 2020 23,911 2021 21,630 2022 20,535 2023 19,627 2024 and after 143,048 Total future minimum lease payments 247,240 Less lease liability interest (47,805 ) Present value of net future minimum lease payments $ 199,435
Maturity of Leases Prior to Adoption of ASC 842	Minimum future lease payments for noncancelable operating leases, primarily on premises, on December 31, 2018 are shown below. (Dollars in thousands) December 31, 2018 2019 $ 27,524 2020 24,722 2021 20,954 2022 16,518 2023 13,174 2024 and after 42,370 Total minimum lease payments $ 145,262

Other Income And Other Expense

Other Income And Other Expense (Tables)	3 Months Ended
	Mar. 31, 2019
Other Nonoperating Income (Expense) [Abstract]
Other Income And Other Expense	Following is detail of All other income and commissions and All other expense as presented in the Consolidated Condensed Statements of Income: Three Months Ended (Dollars in thousands) 2019 2018 All other income and commissions: Deferred compensation (a) $ 5,474 $ 451 Other service charges 3,869 4,123 ATM and interchange fees 3,241 3,267 Dividend income 2,313 2,249 Mortgage banking 1,886 2,546 Letter of credit fees 1,368 1,249 Electronic banking fees 1,271 1,204 Insurance commissions 624 757 Gain/(loss) on extinguishment of debt (1 ) — Other 5,523 7,397 Total $ 25,568 $ 23,243 All other expense: Travel and entertainment $ 2,712 $ 2,983 Other insurance and taxes 2,694 2,665 Supplies 1,804 1,836 Customer relations 1,599 1,063 Employee training and dues 1,457 1,779 Miscellaneous loan costs 1,027 1,142 Tax credit investments 675 1,137 Non-service components of net periodic pension and post-retirement cost 432 504 Litigation and regulatory matters 13 2,134 OREO (366 ) 108 Other 7,739 19,981 Total $ 19,786 $ 35,332 Certain previously reported amounts have been reclassified to agree with current presentation. (a) Amounts are driven by market conditions and are mirrored by changes in deferred compensation expense which is included in employee compensation expense.

Components of Other Comprehen_2

Components of Other Comprehensive Income/(Loss) (Tables)	3 Months Ended
	Mar. 31, 2019
Other Comprehensive Income (Loss), Net of Tax [Abstract]
Accumulated Other Comprehensive Income/(Loss)	The following table provides the changes in accumulated other comprehensive income/(loss) by component, net of tax, for the three months ended March 31, 2019 and 2018 : (Dollars in thousands) Securities AFS Cash Flow Pension and Total Balance as of January 1, 2019 $ (75,736 ) $ (12,112 ) $ (288,768 ) $ (376,616 ) Net unrealized gains/(losses) 48,615 3,936 — 52,551 Amounts reclassified from AOCI — 1,451 1,463 2,914 Other comprehensive income/(loss) 48,615 5,387 1,463 55,465 Balance as of March 31, 2019 $ (27,121 ) $ (6,725 ) $ (287,305 ) $ (321,151 ) Balance as of January 1, 2018 $ (26,834 ) $ (7,764 ) $ (288,227 ) $ (322,825 ) Adjustment to reflect adoption of ASU 2016-01 and ASU 2017-12 (5 ) (206 ) — (211 ) Beginning balance, as adjusted $ (26,839 ) $ (7,970 ) $ (288,227 ) $ (323,036 ) Net unrealized gains/(losses) (59,504 ) (8,638 ) — (68,142 ) Amounts reclassified from AOCI (39 ) (155 ) 1,287 1,093 Other comprehensive income/(loss) (59,543 ) (8,793 ) 1,287 (67,049 ) Balance as of March 31, 2018 $ (86,382 ) $ (16,763 ) $ (286,940 ) $ (390,085 )
Reclassification Out Of Accumulated Other Comprehensive Income	Reclassifications from AOCI, and related tax effects, were as follows: (Dollars in thousands) Three Months Ended Details about AOCI 2019 2018 Affected line item in the statement where net income is presented Securities AFS: Realized (gains)/losses on securities AFS $ — $ (52 ) Debt securities gains/(losses), net Tax expense/(benefit) — 13 Provision/(benefit) for income taxes — (39 ) Cash flow hedges: Realized (gains)/losses on cash flow hedges 1,927 (206 ) Interest and fees on loans Tax expense/(benefit) (476 ) 51 Provision/(benefit) for income taxes 1,451 (155 ) Pension and Postretirement Plans: Amortization of prior service cost and net actuarial gain/(loss) 1,943 1,709 All other expense Tax expense/(benefit) (480 ) (422 ) Provision/(benefit) for income taxes 1,463 1,287 Total reclassification from AOCI $ 2,914 $ 1,093

Earnings Per Share (Tables)

Earnings Per Share (Tables)	3 Months Ended
	Mar. 31, 2019
Earnings Per Share [Abstract]
Schedule of Reconciliation Of Earnings/(Loss) Per Common And Diluted Share	The following table provides reconciliations of net income to net income available to common shareholders and the difference between average basic common shares outstanding and average diluted common shares outstanding: Three Months Ended (Dollars and shares in thousands, except per share data) 2019 2018 Net income/(loss) $ 103,405 $ 94,994 Net income attributable to noncontrolling interest 2,820 2,820 Net income/(loss) attributable to controlling interest 100,585 92,174 Preferred stock dividends 1,550 1,550 Net income/(loss) available to common shareholders $ 99,035 $ 90,624 Weighted average common shares outstanding—basic 317,435 326,489 Effect of dilutive securities 2,146 3,855 Weighted average common shares outstanding—diluted 319,581 330,344 Net income/(loss) per share available to common shareholders $ 0.31 $ 0.28 Diluted income/(loss) per share available to common shareholders $ 0.31 $ 0.27
Schedule of Anti-Dilutive Options and Awards	The following table presents outstanding options and other equity awards that were excluded from the calculation of diluted earnings per share because they were either anti-dilutive (the exercise price was higher than the weighted-average market price for the period) or the performance conditions have not been met: Three Months Ended (Shares in thousands) 2019 2018 Stock options excluded from the calculation of diluted EPS 2,613 2,410 Weighted average exercise price of stock options excluded from the calculation of diluted EPS $ 21.77 $ 24.83 Other equity awards excluded from the calculation of diluted EPS 1,922 307

Pension, Savings, And Other E_2

Pension, Savings, And Other Employee Benefits (Tables)	3 Months Ended
	Mar. 31, 2019
Retirement Benefits, Description [Abstract]
Schedule of Components of Net Periodic Benefit Cost	The components of net periodic benefit cost for the three months ended March 31 are as follows: Pension Benefits Other Benefits (Dollars in thousands) 2019 2018 2019 2018 Components of net periodic benefit cost Service cost $ 8 $ 10 $ 24 $ 33 Interest cost 7,575 6,986 351 327 Expected return on plan assets (9,173 ) (8,225 ) (269 ) (269 ) Amortization of unrecognized: Actuarial (gain)/loss 2,435 2,956 (117 ) (91 ) Net periodic benefit cost/(credit) $ 845 $ 1,727 $ (11 ) $ —

Business Segment Information (T

Business Segment Information (Tables)	3 Months Ended
	Mar. 31, 2019
Segment Reporting, Measurement Disclosures [Abstract]
Amounts Of Consolidated Revenue, Expense, Tax And Assets	The following table reflects the amounts of consolidated revenue, expense, tax, and average assets for each segment for the three months ended March 31 : Three Months Ended (Dollars in thousands) 2019 2018 Consolidated Net interest income $ 294,508 $ 301,173 Provision/(provision credit) for loan losses 9,000 (1,000 ) Noninterest income 141,045 136,017 Noninterest expense 296,090 313,265 Income/(loss) before income taxes 130,463 124,925 Provision/(benefit) for income taxes 27,058 29,931 Net income/(loss) $ 103,405 $ 94,994 Average assets $ 40,883,192 $ 40,350,724 Three Months Ended (Dollars in thousands) 2019 2018 Regional Banking Net interest income $ 287,157 $ 293,194 Provision/(provision credit) for loan losses 13,958 4,458 Noninterest income 72,117 79,963 Noninterest expense 199,959 201,749 Income/(loss) before income taxes 145,357 166,950 Provision/(benefit) for income taxes 33,693 39,340 Net income/(loss) $ 111,664 $ 127,610 Average assets $ 28,889,492 $ 28,171,416 Fixed Income Net interest income $ 7,322 $ 8,475 Noninterest income 53,807 45,605 Noninterest expense 51,227 49,931 Income/(loss) before income taxes 9,902 4,149 Provision/(benefit) for income taxes 2,283 896 Net income/(loss) $ 7,619 $ 3,253 Average assets $ 2,849,939 $ 3,479,425 Corporate Net interest income/(expense) $ (7,853 ) $ (16,184 ) Noninterest income 13,352 9,316 Noninterest expense 40,351 53,329 Income/(loss) before income taxes (34,852 ) (60,197 ) Provision/(benefit) for income taxes (11,403 ) (13,771 ) Net income/(loss) $ (23,449 ) $ (46,426 ) Average assets $ 8,050,162 $ 7,115,661 Non-Strategic Net interest income $ 7,882 $ 15,688 Provision/(provision credit) for loan losses (4,958 ) (5,458 ) Noninterest income 1,769 1,133 Noninterest expense 4,553 8,256 Income/(loss) before income taxes 10,056 14,023 Provision/(benefit) for income taxes 2,485 3,466 Net income/(loss) $ 7,571 $ 10,557 Average assets $ 1,093,599 $ 1,584,222 Certain previously reported amounts have been reclassified to agree with current presentation. The following tables reflect a disaggregation of FHN’s noninterest income by major product line and reportable segment for the three months ended March 31, 2019 and 2018 : Three months ended March 31, 2019 (Dollars in thousands) Regional Banking Fixed Income Corporate Non-Strategic Consolidated Noninterest income: Fixed income (a) $ 17 $ 53,732 $ — $ — $ 53,749 Deposit transactions and cash management 30,005 3 1,563 50 31,621 Brokerage, management fees and commissions 12,629 — — 4 12,633 Trust services and investment management 7,056 — (30 ) — 7,026 Bankcard income 6,102 — 62 (149 ) 6,015 BOLI (b) — — 4,402 — 4,402 Debt securities gains/(losses), net (b) — — — — — Equity securities gains/(losses), net (b) — — 31 — 31 All other income and commissions (c) 16,308 72 7,324 1,864 25,568 Total noninterest income $ 72,117 $ 53,807 $ 13,352 $ 1,769 $ 141,045 (a) Includes $7.3 million of underwriting, portfolio advisory, and other noninterest income in scope of Accounting Standards Codification ("ASC") 606, "Revenue From Contracts With Customers." (b) Represents noninterest income excluded from the scope of ASC 606. Amount is presented for informational purposes to reconcile total non-interest income. (c) Includes other service charges, ATM and interchange fees, electronic banking fees, and insurance commission in scope of ASC 606. Three months ended March 31, 2018 (Dollars in thousands) Regional Banking Fixed Income Corporate Non- Strategic Consolidated Noninterest income: Fixed income (a) $ 81 $ 45,425 $ — $ — $ 45,506 Deposit transactions and cash management 34,722 3 1,209 50 35,984 Brokerage, management fees and commissions 13,483 — — — 13,483 Trust services and investment management 7,292 — (15 ) — 7,277 Bankcard income 6,279 — 56 110 6,445 BOLI (b) — — 3,993 — 3,993 Debt securities gains/(losses), net (b) — — 52 — 52 Equity securities gains/(losses), net (b) — — 34 — 34 All other income and commissions (c) (d) 18,106 177 3,987 973 23,243 Total noninterest income $ 79,963 $ 45,605 $ 9,316 $ 1,133 $ 136,017 Certain previously reported amounts have been reclassified to agree with current presentation. (a) Includes $8.2 million of underwriting, portfolio advisory, and other noninterest income in scope of Accounting Standards Codification ("ASC") 606, "Revenue From Contracts With Customers." (b) Represents noninterest income excluded from the scope of ASC 606. Amount is presented for informational purposes to reconcile total non-interest income. (c) Includes other service charges, ATM and interchange fees, electronic banking fees, and insurance commission in scope of ASC 606. (d) Corporate includes a $3.3 million gain on the sale of a building.

Variable Interest Entities (Tab

Variable Interest Entities (Tables)	3 Months Ended
	Mar. 31, 2019
Variable Interest Entities [Abstract]
Summary Of VIEs Consolidated By FHN	The following table summarizes VIEs consolidated by FHN as of March 31, 2019 and December 31, 2018 : March 31, 2019 December 31, 2018 On-Balance Sheet Consumer Loan Securitization Rabbi Trusts Used for Deferred Compensation Plans On-Balance Sheet Consumer Loan Securitization Rabbi Trusts Used for Deferred Compensation Plans ( Dollars in thousands ) Carrying Value Carrying Value Carrying Value Carrying Value Assets: Cash and due from banks $ — N/A $ — N/A Loans, net of unearned income 14,990 N/A 16,213 N/A Less: Allowance for loan losses — N/A — N/A Total net loans 14,990 N/A 16,213 N/A Other assets 34 $ 83,941 35 $ 78,446 Total assets $ 15,024 $ 83,941 $ 16,248 $ 78,446 Liabilities: Term borrowings $ 1,802 N/A $ 2,981 N/A Other liabilities — $ 64,069 — $ 56,700 Total liabilities $ 1,802 $ 64,069 $ 2,981 $ 56,700
Summary of the Impact of Qualifying LIHTC Investments	The following table summarizes the impact to the Provision/(benefit) for income taxes on the Consolidated Condensed Statements of Income for the three months ended March 31, 2019 , and 2018 for LIHTC investments accounted for under the proportional amortization method. Three Months Ended ( Dollars in thousands ) 2019 2018 Provision/(benefit) for income taxes: Amortization of qualifying LIHTC investments $ 3,998 $ 2,356 Low income housing tax credits (3,629 ) (2,537 ) Other tax benefits related to qualifying LIHTC investments (1,610 ) (690 )
Summary Of VIEs Not Consolidated By FHN	The following table summarizes FHN’s nonconsolidated VIEs as of March 31, 2019 : (Dollars in thousands) Maximum Loss Exposure Liability Recognized Classification Type Low income housing partnerships $ 152,048 $ 79,691 (a) Other tax credit investments (b) (c) 8,961 — Other assets Small issuer trust preferred holdings (d) 269,635 — Loans, net of unearned income On-balance sheet trust preferred securitization 37,121 77,053 (e) Proprietary residential mortgage securitizations 1,397 — Trading securities Holdings of agency mortgage-backed securities (d) 4,905,088 — (f) Commercial loan troubled debt restructurings (g) 51,893 — Loans, net of unearned income Sale-leaseback transaction 19,777 — (h) Proprietary trust preferred issuances (i) — 167,014 Term borrowings (a) Maximum loss exposure represents $72.4 million of current investments and $79.7 million of accrued contractual funding commitments. Accrued funding commitments represent unconditional contractual obligations for future funding events, and are also recognized in Other liabilities. FHN currently expects to be required to fund these accrued commitments by the end of 2021. (b) A liability is not recognized as investments are written down over the life of the related tax credit. (c) Maximum loss exposure represents current investment balance. Of the initial investment, $2.7 million was funded through loans from community development enterprises. (d) Maximum loss exposure represents the value of current investments. A liability is not recognized as FHN is solely a holder of the trusts’ securities. (e) Includes $112.5 million classified as Loans, net of unearned income, and $1.7 million classified as Trading securities which are offset by $77.1 million classified as Term borrowings. (f) Includes $.6 billion classified as Trading securities and $4.3 billion classified as Securities available-for-sale. (g) Maximum loss exposure represents $51.6 million of current receivables and $.3 million of contractual funding commitments on loans related to commercial borrowers involved in a troubled debt restructuring. (h) Maximum loss exposure represents the current loan balance plus additional funding commitments. (i) No exposure to loss due to nature of FHN's involvement. The following table summarizes FHN’s nonconsolidated VIEs as of December 31, 2018 : (Dollars in thousands) Maximum Loss Exposure Liability Recognized Classification Type Low income housing partnerships $ 156,056 $ 80,427 (a) Other tax credit investments (b) (c) 3,619 — Other assets Small issuer trust preferred holdings (d) 270,585 — Loans, net of unearned income On-balance sheet trust preferred securitization 37,532 76,642 (e) Proprietary residential mortgage securitizations 1,524 — Trading securities Holdings of agency mortgage-backed securities (d) 4,842,630 — (f) Commercial loan troubled debt restructurings (g) 40,590 — Loans, net of unearned income Sale-leaseback transaction 16,327 — (h) Proprietary trust preferred issuances (i) — 167,014 Term borrowings (a) Maximum loss exposure represents $75.6 million of current investments and $80.4 million of accrued contractual funding commitments. Accrued funding commitments represent unconditional contractual obligations for future funding events, and are also recognized in Other liabilities. FHN currently expects to be required to fund these accrued commitments by the end of 2020. (b) A liability is not recognized as investments are written down over the life of the related tax credit. (c) Maximum loss exposure represents current investment balance. Of the initial investment, $2.7 million was funded through loans from community development enterprises. (d) Maximum loss exposure represents the value of current investments. A liability is not recognized as FHN is solely a holder of the trusts’ securities. (e) Includes $112.5 million classified as Loans, net of unearned income, and $1.7 million classified as Trading securities which are offset by $76.6 million classified as Term borrowings. (f) Includes $.5 billion classified as Trading securities and $4.4 billion classified as Securities available-for-sale. (g) Maximum loss exposure represents $38.2 million of current receivables and $ 2.3 million of contractual funding commitments on loans related to commercial borrowers involved in a troubled debt restructuring. (h) Maximum loss exposure represents the current loan balance plus additional funding commitments less amounts received from the buyer-lessor. (i) No exposure to loss due to nature of FHN's involvement.

Derivatives (Tables)

Derivatives (Tables)	3 Months Ended
	Mar. 31, 2019
Derivative Instruments and Hedging Activities Disclosure [Abstract]
Derivatives Associated With Fixed Income Trading Activities	The following tables summarize FHN’s derivatives associated with fixed income trading activities as of March 31, 2019 and December 31, 2018 : March 31, 2019 (Dollars in thousands) Notional Assets Liabilities Customer interest rate contracts $ 2,279,361 $ 30,632 $ 14,245 Offsetting upstream interest rate contracts 2,279,361 5,056 4,834 Option contracts purchased 72,500 103 — Forwards and futures purchased 7,983,000 31,733 4,404 Forwards and futures sold 8,373,739 5,243 32,284 December 31, 2018 (Dollars in thousands) Notional Assets Liabilities Customer interest rate contracts $ 2,271,448 $ 18,744 $ 27,768 Offsetting upstream interest rate contracts 2,271,448 4,014 9,041 Option contracts purchased 20,000 25 — Forwards and futures purchased 4,684,177 28,304 181 Forwards and futures sold 4,967,454 522 30,055
Derivatives Associated With Interest Rate Risk Management Activities	The following tables summarize FHN’s derivatives associated with interest rate risk management activities as of March 31, 2019 and December 31, 2018 : March 31, 2019 (Dollars in thousands) Notional Assets Liabilities Customer Interest Rate Contracts Hedging Hedging Instruments and Hedged Items: Customer interest rate contracts $ 2,122,743 $ 37,754 $ 14,260 Offsetting upstream interest rate contracts 2,122,743 7,232 6,731 Debt Hedging Hedging Instruments: Interest rate swaps $ 900,000 N/A $ 448 Hedged Items: Term borrowings: Par N/A N/A $ 900,000 Cumulative fair value hedging adjustments N/A N/A (10,828 ) Unamortized premium/(discount) and issuance costs N/A N/A (1,891 ) Total carrying value N/A N/A $ 887,281 December 31, 2018 (Dollars in thousands) Notional Assets Liabilities Customer Interest Rate Contracts Hedging Hedging Instruments and Hedged Items: Customer interest rate contracts $ 2,029,162 $ 20,262 $ 25,880 Offsetting upstream interest rate contracts 2,029,162 8,154 9,153 Debt Hedging Hedging Instruments: Interest rate swaps $ 900,000 $ 127 $ 6 Hedged Items: Term borrowings: Par N/A N/A $ 900,000 Cumulative fair value hedging adjustments N/A N/A (15,094 ) Unamortized premium/(discount) and issuance costs N/A N/A (2,295 ) Total carrying value N/A N/A $ 882,611
Gains/(Losses) on Derivatives Associated with Interest Rate Risk Management Activities	The following table summarizes gains/(losses) on FHN’s derivatives associated with interest rate risk management activities for the three months ended March 31, 2019 and 2018 : Three Months Ended 2019 2018 (Dollars in thousands) Gains/(Losses) Gains/(Losses) Customer Interest Rate Contracts Hedging Hedging Instruments and Hedged Items: Customer interest rate contracts (a) $ 29,112 $ (24,724 ) Offsetting upstream interest rate contracts (a) (29,112 ) 24,724 Debt Hedging Hedging Instruments: Interest rate swaps (b) $ 4,279 $ (6,595 ) Hedged Items: Term borrowings (a) (c) (4,266 ) 6,550 (a) Gains/losses included in All other expense within the Consolidated Condensed Statements of Income. (b) Gains/losses included in the Interest expense. (c) Represents gains and losses attributable to changes in fair value due to interest rate risk as designated in ASC 815-20 hedging relationships.
Derivative Associated With Cash Flow Hedges	The following tables summarize FHN’s derivative activities associated with cash flow hedges as of March 31, 2019 and December 31, 2018 : March 31, 2019 (Dollars in thousands) Notional Assets Liabilities Cash Flow Hedges Hedging Instruments: Interest rate swaps $ 900,000 N/A $ 891 Hedged Items: Variability in cash flows related to debt instruments (primarily loans) N/A $ 900,000 N/A December 31, 2018 (Dollars in thousands) Notional Assets Liabilities Cash Flow Hedges Hedging Instruments: Interest rate swaps $ 900,000 $ 888 $ 5 Hedged Items: Variability in cash flows related to debt instruments (primarily loans) N/A $ 900,000 N/A
Gains/(Losses) on Derivatives Associated with Cash Flow Hedges	The following table summarizes gains/(losses) on FHN’s derivatives associated with cash flow hedges for the three months ended March 31, 2019 and 2018 : Three Months Ended 2019 2018 (Dollars in thousands) Gains/(Losses) Gains/(Losses) Cash Flow Hedges Hedging Instruments: Interest rate swaps (a) $ 7,218 $ (11,618 ) Gain/(loss) recognized in Other comprehensive income/(loss) 3,936 (8,844 ) Gain/(loss) reclassified from AOCI into Interest income 1,451 (155 ) (a) Approximately $5.0 million of pre-tax losses are expected to be reclassified into earnings in the next twelve months.
Derivative Assets And Collateral Received	The following table provides details of derivative assets and collateral received as presented on the Consolidated Condensed Statements of Condition as of March 31, 2019 and December 31, 2018 : Gross amounts not offset in the Statements of Condition (Dollars in thousands) Gross amounts of recognized assets Gross amounts offset in the Statements of Condition Net amounts of assets presented in the Statements of Condition (a) Derivative liabilities available for offset Collateral received Net amount Derivative assets: March 31, 2019 (b) $ 81,003 $ — $ 81,003 $ (12,081 ) $ (68,887 ) $ 35 December 31, 2018 (b) 52,562 — 52,562 (12,745 ) (39,637 ) 180 (a) Included in Derivative assets on the Consolidated Condensed Statements of Condition. As of March 31, 2019 and December 31, 2018 , $37.1 million and $28.9 million , respectively, of derivative assets (primarily fixed income forward contracts) have been excluded from these tables because they are generally not subject to master netting or similar agreements. (b) Amounts are comprised entirely of interest rate derivative contracts.
Derivative Liabilities and Collateral Pledged	The following table provides details of derivative liabilities and collateral pledged as presented on the Consolidated Condensed Statements of Condition as of March 31, 2019 and December 31, 2018 : Gross amounts not offset in the Statements of Condition (Dollars in thousands) Gross amounts of recognized liabilities Gross amounts offset in the Statements of Condition Net amounts of liabilities presented in the Statements of Condition (a) Derivative assets available for offset Collateral pledged Net amount Derivative liabilities: March 31, 2019 (b) $ 41,409 $ — $ 41,409 $ (12,081 ) $ (28,679 ) $ 649 December 31, 2018 (b) 71,853 — 71,853 (12,745 ) (54,773 ) 4,335 (a) Included in Derivative liabilities on the Consolidated Condensed Statements of Condition. As of March 31, 2019 and December 31, 2018 , $65.7 million and $61.9 million , respectively, of derivative liabilities (primarily Visa-related derivatives and fixed income forward contracts) have been excluded from these tables because they are generally not subject to master netting or similar agreements. (b) Amounts are comprised entirely of interest rate derivative contracts.

Master Netting and Similar Ag_2

Master Netting and Similar Agreements—Repurchase, Reverse Repurchase, and Securities Borrowing Transactions (Tables)	3 Months Ended
	Mar. 31, 2019
Offsetting [Abstract]
Securities Purchased Under Agreements To Resell And Collateral Pledged By Counterparties	The following table provides details of Securities purchased under agreements to resell as presented on the Consolidated Condensed Statements of Condition and collateral pledged by counterparties as of March 31, 2019 and December 31, 2018 : Gross amounts not offset in the Statements of Condition (Dollars in thousands) Gross amounts of recognized assets Gross amounts offset in the Statements of Condition Net amounts of assets presented in the Statements of Condition Offsetting securities sold under agreements to repurchase Securities collateral (not recognized on FHN’s Statements of Condition) Net amount Securities purchased under agreements to resell: March 31, 2019 $ 474,679 $ — $ 474,679 $ (1,276 ) $ (469,450 ) $ 3,953 December 31, 2018 386,443 — 386,443 (261 ) (382,756 ) 3,426
Securities Sold Under Agreements To Repurchase And Collateral Pledged By Company	The following table provides details of Securities sold under agreements to repurchase as presented on the Consolidated Condensed Statements of Condition and collateral pledged by FHN as of March 31, 2019 and December 31, 2018 : Gross amounts not offset in the Statements of Condition (Dollars in thousands) Gross amounts of recognized liabilities Gross amounts offset in the Statements of Condition Net amounts of liabilities presented in the Statements of Condition Offsetting securities purchased under agreements to resell Securities/ government guaranteed loans collateral Net amount Securities sold under agreements to repurchase: March 31, 2019 $ 745,788 $ — $ 745,788 $ (1,276 ) $ (744,427 ) $ 85 December 31, 2018 762,592 — 762,592 (261 ) (762,322 ) 9
Schedule of the Remaining Contractual Maturity by Collateral Type of Securities Sold Under Agreements To Repurchase	The following tables provide details, by collateral type, of the remaining contractual maturity of Securities sold under agreements to repurchase as of March 31, 2019 and December 31, 2018 : March 31, 2019 (Dollars in thousands) Overnight and Continuous Up to 30 Days Total Securities sold under agreements to repurchase: U.S. treasuries $ 24,108 $ — $ 24,108 Government agency issued MBS 366,837 9,140 375,977 Government agency issued CMO 36,137 — 36,137 Government guaranteed loans (SBA and USDA) 309,566 — 309,566 Total Securities sold under agreements to repurchase $ 736,648 $ 9,140 $ 745,788 December 31, 2018 (Dollars in thousands) Overnight and Continuous Up to 30 Days Total Securities sold under agreements to repurchase: U.S. treasuries $ 16,321 $ — $ 16,321 Government agency issued MBS 414,488 5,220 419,708 Government agency issued CMO 36,688 — 36,688 Government guaranteed loans (SBA and USDA) 289,875 — 289,875 Total Securities sold under agreements to repurchase $ 757,372 $ 5,220 $ 762,592

Fair Value of Assets & Liabil_2

Fair Value of Assets & Liabilities (Tables)	3 Months Ended
	Mar. 31, 2019
Fair Value Disclosures [Abstract]
Schedule Of Assets And Liabilities Measured At Fair Value On A Recurring Basis	The following table presents the balance of assets and liabilities measured at fair value on a recurring basis as of March 31, 2019 : March 31, 2019 (Dollars in thousands) Level 1 Level 2 Level 3 Total Trading securities—fixed income: U.S. treasuries $ — $ 232,019 $ — $ 232,019 Government agency issued MBS — 292,020 — 292,020 Government agency issued CMO — 295,476 — 295,476 Other U.S. government agencies — 78,958 — 78,958 States and municipalities — 81,513 — 81,513 Corporate and other debt — 696,680 — 696,680 Equity, mutual funds, and other — 3,664 — 3,664 Total trading securities—fixed income — 1,680,330 — $ 1,680,330 Trading securities—mortgage banking — — 1,397 1,397 Loans held-for-sale (elected fair value) — — 15,751 15,751 Securities available-for-sale: U.S. treasuries — 99 — 99 Government agency issued MBS — 2,385,809 — 2,385,809 Government agency issued CMO — 1,931,784 — 1,931,784 Other U.S. government agencies — 190,828 — 190,828 States and municipalities — 39,423 — 39,423 Corporate and other debt — 55,184 — 55,184 Interest-Only Strip (elected fair value) — — 13,195 13,195 Total securities available-for-sale — 4,603,127 13,195 4,616,322 Other assets: Deferred compensation mutual funds 41,097 — — 41,097 Equity, mutual funds, and other 22,326 — — 22,326 Derivatives, forwards and futures 36,976 — — 36,976 Derivatives, interest rate contracts — 80,777 — 80,777 Derivatives, other — 375 — 375 Total other assets 100,399 81,152 — 181,551 Total assets $ 100,399 $ 6,364,609 $ 30,343 $ 6,495,351 Trading liabilities—fixed income: U.S. treasuries $ — $ 284,394 $ — $ 284,394 Other U.S.government agencies — 16,817 — 16,817 Corporate and other debt — 128,458 — 128,458 Total trading liabilities—fixed income — 429,669 — 429,669 Other liabilities: Derivatives, forwards and futures 36,688 — — 36,688 Derivatives, interest rate contracts — 41,409 — 41,409 Derivatives, other — 56 28,970 29,026 Total other liabilities 36,688 41,465 28,970 107,123 Total liabilities $ 36,688 $ 471,134 $ 28,970 $ 536,792 The following table presents the balance of assets and liabilities measured at fair value on a recurring basis as of December 31, 2018 : December 31, 2018 (Dollars in thousands) Level 1 Level 2 Level 3 Total Trading securities—fixed income: U.S. treasuries $ — $ 169,799 $ — $ 169,799 Government agency issued MBS — 133,373 — 133,373 Government agency issued CMO — 330,456 — 330,456 Other U.S. government agencies — 76,733 — 76,733 States and municipalities — 54,234 — 54,234 Corporate and other debt — 682,068 — 682,068 Equity, mutual funds, and other — (19 ) — (19 ) Total trading securities—fixed income — 1,446,644 — 1,446,644 Trading securities—mortgage banking — — 1,524 1,524 Loans held-for-sale (elected fair value) — — 16,273 16,273 Securities available-for-sale: U.S. treasuries — 98 — 98 Government agency issued MBS — 2,420,106 — 2,420,106 Government agency issued CMO — 1,958,695 — 1,958,695 Other U.S. government agencies — 149,786 — 149,786 States and municipalities — 32,573 — 32,573 Corporate and other debt — 55,310 — 55,310 Interest-Only Strip (elected fair value) — — 9,902 9,902 Total securities available-for-sale — 4,616,568 9,902 4,626,470 Other assets: Deferred compensation mutual funds 37,771 — — 37,771 Equity, mutual funds, and other 22,248 — — 22,248 Derivatives, forwards and futures 28,826 — — 28,826 Derivatives, interest rate contracts — 52,214 — 52,214 Derivatives, other — 435 — 435 Total other assets 88,845 52,649 — 141,494 Total assets $ 88,845 $ 6,115,861 $ 27,699 $ 6,232,405 Trading liabilities—fixed income: U.S. treasuries $ — $ 207,739 $ — $ 207,739 Other U.S.government agencies — 98 — 98 Corporate and other debt — 127,543 — 127,543 Total trading liabilities—fixed income — 335,380 — 335,380 Other liabilities: Derivatives, forwards and futures 30,236 — — 30,236 Derivatives, interest rate contracts — 71,853 — 71,853 Derivatives, other — 84 31,540 31,624 Total other liabilities 30,236 71,937 31,540 133,713 Total liabilities $ 30,236 $ 407,317 $ 31,540 $ 469,093
Summary Of Changes In Level 3 Assets And Liabilities Measured At Fair Value	The changes in Level 3 assets and liabilities measured at fair value for the three months ended March 31, 2019 and 2018 , on a recurring basis are summarized as follows: Three Months Ended March 31, 2019 (Dollars in thousands) Trading securities Interest- only strips- AFS Loans held- for-sale Net derivative liabilities Balance on January 1, 2019 $ 1,524 $ 9,902 $ 16,273 $ (31,540 ) Total net gains/(losses) included in: Net income 21 (1,258 ) 495 135 Purchases — 86 — — Sales — (13,012 ) — — Settlements (148 ) — (1,017 ) 2,435 Net transfers into/(out of) Level 3 — 17,477 (b) — — Balance on March 31, 2019 $ 1,397 $ 13,195 $ 15,751 $ (28,970 ) Net unrealized gains/(losses) included in net income $ (30 ) (a) $ (894 ) (c) $ 495 (a) $ 135 (d) Three Months Ended March 31, 2018 (Dollars in thousands) Trading securities Interest-only-strips-AFS Loans held-for-sale Net derivative liabilities January 1, 2018 $ 2,151 $ 1,270 $ 18,926 $ (5,645 ) Total net gains/(losses) included in: Net income 16 1,592 169 (296 ) Purchases — — 28 — Sales — (9,193 ) — — Settlements (241 ) — (789 ) 296 Net transfers into/(out of) Level 3 — 9,064 (b) — — Balance on March 31, 2018 $ 1,926 $ 2,733 $ 18,334 $ (5,645 ) Net unrealized gains/(losses) included in net income $ (25 ) (a) $ 19 (c) $ 169 (a) $ (296 ) (d) (a) Primarily included in mortgage banking income on the Consolidated Condensed Statements of Income. (b) Transfers into interest-only strips - AFS Level 3 measured on a recurring basis reflect movements from loans held-for-sale (Level 2 nonrecurring). (c) Primarily included in fixed income on the Consolidated Condensed Statements of Income. (d) Included in Other expense.
Nonrecurring Fair Value Measurements	For assets measured at fair value on a nonrecurring basis which were still held on the Consolidated Condensed Statements of Condition at March 31, 2019 , and December 31, 2018 , respectively, the following tables provide the level of valuation assumptions used to determine each adjustment and the related carrying value. Carrying value at March 31, 2019 (Dollars in thousands) Level 1 Level 2 Level 3 Total Loans held-for-sale—other consumer $ — $ 18,137 $ — $ 18,137 Loans held-for-sale—SBAs and USDA — 494,445 1,006 495,451 Loans held-for-sale—first mortgages — — 519 519 Loans, net of unearned income (a) — — 59,657 59,657 OREO (b) — — 20,676 20,676 Other assets (c) — — 13,962 13,962 Carrying value at December 31, 2018 (Dollars in thousands) Level 1 Level 2 Level 3 Total Loans held-for-sale—other consumer $ — $ 18,712 $ — $ 18,712 Loans held-for-sale—SBAs and USDA — 577,280 1,011 578,291 Loans held-for-sale—first mortgages — — 541 541 Loans, net of unearned income (a) — — 48,259 48,259 OREO (b) — — 22,387 22,387 Other assets (c) — — 8,845 8,845 (a) Represents carrying value of loans for which adjustments are required to be based on the appraised value of the collateral less estimated costs to sell. (b) Represents the fair value of foreclosed properties that were measured subsequent to their initial classification as OREO. Balance excludes OREO related to government insured mortgages. (c) Represents tax credit investments accounted for under the equity method
Gains/(losses) on Nonrecurring Fair Value Measurements	For assets measured on a nonrecurring basis which were still held on the Consolidated Condensed Statements of Condition at period end, the following table provides information about the fair value adjustments recorded during the three months ended March 31, 2019 and 2018 : Net gains/(losses) (Dollars in thousands) 2019 2018 Loans held-for-sale—other consumer $ (200 ) $ — Loans held-for-sale—SBAs and USDA (683 ) (206 ) Loans held-for-sale—first mortgages 15 5 Loans, net of unearned income (a) 200 502 OREO (b) 35 (1,160 ) Other assets (c) (675 ) (1,137 ) $ (1,308 ) $ (1,996 ) (a) Write-downs on these loans are recognized as part of provision for loan losses. (b) Represents losses of foreclosed properties that were measured subsequent to their initial classification as OREO. Balance excludes OREO related to government insured mortgages. (c) Represents tax credit investments accounted for under the equity method.
Schedule Of Unobservable Inputs Utilized In Determining The Fair Value Of Level 3 Recurring And Non-Recurring Measurements	The following tables provide information regarding the unobservable inputs utilized in determining the fair value of Level 3 recurring and non-recurring measurements as of March 31, 2019 and December 31, 2018 : (Dollars in thousands) Values Utilized Level 3 Class Fair Value at Valuation Techniques Unobservable Input Range Weighted Average (d) Available-for-sale- securities SBA-interest only strips $ 13,195 Discounted cash flow Constant prepayment rate 12% 12% Bond equivalent yield 15%- 16% 15% Loans held-for-sale - residential real estate 16,270 Discounted cash flow Prepayment speeds - First mortgage 2% - 10% 3% Prepayment speeds - HELOC 5% - 12% 7.5% Foreclosure losses 50% - 66% 64% Loss severity trends - First mortgage 3% - 25% of UPB 17% Loss severity trends - HELOC 50% - 100% of UPB 50% Loans held-for-sale- unguaranteed interest in SBA loans 1,006 Discounted cash flow Constant prepayment rate 8% - 12% 10% Bond equivalent yield 9% 9% Derivative liabilities, other 28,970 Discounted cash flow Visa covered litigation resolution amount $5.0 billion - $5.8 billion $5.6 billion Probability of resolution scenarios 15% - 25% 22% Time until resolution 18 - 48 months 33 months Loans, net of unearned 59,657 Appraisals from comparable properties Marketability adjustments for specific properties 0% - 10% of appraisal NM Other collateral valuations Borrowing base certificates adjustment 20% - 50% of gross value NM Financial Statements/Auction values adjustment 0% - 25% of reported value NM OREO (b) 20,676 Appraisals from comparable properties Adjustment for value changes since appraisal 0% - 10% of appraisal NM Other assets (c) 13,962 Discounted cash flow Adjustments to current sales yields for specific properties 0% - 15% adjustment to yield NM Appraisals from comparable properties Marketability adjustments for specific properties 0% - 25% of appraisal NM NM - Not meaningful. (a) Represents carrying value of loans for which adjustments are required to be based on the appraised value of the collateral less estimated costs to sell. Write-downs on these loans are recognized as part of provision for loan losses. (b) Represents the fair value of foreclosed properties that were measured subsequent to their initial classification as OREO. Balance excludes OREO related to government insured mortgages. (c) Represents tax credit investments accounted for under the equity method. (d) Weighted averages are determined by the relative fair value of the instruments or the relative contribution to an instrument's fair value. (Dollars in thousands) Values Utilized Level 3 Class Fair Value at Valuation Techniques Unobservable Input Range Weighted Average (d) Available-for-sale- securities SBA-interest only strips $ 9,902 Discounted cash flow Constant prepayment rate 11% - 12% 11% Bond equivalent yield 14% - 15% 14% Loans held-for-sale - residential real estate 16,815 Discounted cash flow Prepayment speeds - First mortgage 2% - 10% 3% Prepayment speeds - HELOC 5% - 12% 7.5% Foreclosure losses 50% - 66% 63% Loss severity trends - First mortgage 2% - 25% of UPB 17% Loss severity trends - HELOC 50% - 100% of UPB 50% Loans held-for-sale- unguaranteed interest in SBA loans 1,011 Discounted cash flow Constant prepayment rate 8% - 12% 10% Bond equivalent yield 9% 9% Derivative liabilities, other 31,540 Discounted cash flow Visa covered litigation resolution amount $5.0 billion - $5.8 billion $5.6 billion Probability of resolution scenarios 10% - 25% 23% Time until resolution 18 - 48 months 36 months Loans, net of unearned 48,259 Appraisals from comparable properties Marketability adjustments for specific properties 0% - 10% of appraisal NM Other collateral valuations Borrowing base certificates adjustment 20% - 50% of gross value NM Financial Statements/Auction values adjustment 0% - 25% of reported value NM OREO (b) 22,387 Appraisals from comparable properties Adjustment for value changes since appraisal 0% - 10% of appraisal NM Other assets (c) 8,845 Discounted cash flow Adjustments to current sales yields for specific properties 0% - 15% adjustment to yield NM Appraisals from comparable properties Marketability adjustments for specific properties 0% - 25% of appraisal NM NM - Not meaningful. (a) Represents carrying value of loans for which adjustments are required to be based on the appraised value of the collateral less estimated costs to sell. Write-downs on these loans are recognized as part of provision for loan losses. (b) Represents the fair value of foreclosed properties that were measured subsequent to their initial classification as OREO. Balance excludes OREO related to government insured mortgages. (c) Represents tax credit investments accounted for under the equity method. (d) Weighted averages are determined by the relative fair value of the instruments or the relative contribution to an instrument's fair value.
Summary Of Differences Between The Fair Value Carrying Amount Of Mortgages Held-For-Sale And Aggregate Unpaid Principal Amount	The following tables reflect the differences between the fair value carrying amount of residential real estate loans held-for-sale measured at fair value in accordance with management’s election and the aggregate unpaid principal amount FHN is contractually entitled to receive at maturity. March 31, 2019 (Dollars in thousands) Fair value carrying amount Aggregate unpaid principal Fair value carrying amount less aggregate unpaid principal Residential real estate loans held-for-sale reported at fair value: Total loans $ 15,751 $ 22,568 $ (6,817 ) Nonaccrual loans 4,382 7,761 (3,379 ) Loans 90 days or more past due and still accruing — — — December 31, 2018 (Dollars in thousands) Fair value carrying amount Aggregate unpaid principal Fair value carrying amount less aggregate unpaid principal Residential real estate loans held-for-sale reported at fair value: Total loans $ 16,273 $ 23,567 $ (7,294 ) Nonaccrual loans 4,536 8,128 (3,592 ) Loans 90 days or more past due and still accruing 171 281 (110 )
Changes In Fair Value Of Assets And Liabilities Which Fair Value Option Included In Current Period Earnings	Assets and liabilities accounted for under the fair value election are initially measured at fair value with subsequent changes in fair value recognized in earnings. Such changes in the fair value of assets and liabilities for which FHN elected the fair value option are included in current period earnings with classification in the income statement line item reflected in the following table: Three Months Ended (Dollars in thousands) 2019 2018 Changes in fair value included in net income: Mortgage banking noninterest income Loans held-for-sale $ 495 $ 169
Summary Of Book Value And Estimated Fair Value Of Financial Instruments	The following table summarizes the book value and estimated fair value of financial instruments recorded in the Consolidated Condensed Statements of Condition as of March 31, 2019 : March 31, 2019 Book Value Fair Value (Dollars in thousands) Level 1 Level 2 Level 3 Total Assets: Loans, net of unearned income and allowance for loan losses Commercial: Commercial, financial and industrial $ 17,072,399 $ — $ — $ 17,166,407 $ 17,166,407 Commercial real estate 3,912,561 — — 3,916,819 3,916,819 Consumer: Consumer real estate 6,127,430 — — 6,112,800 6,112,800 Permanent mortgage 199,179 — — 210,387 210,387 Credit card & other 493,568 — — 495,130 495,130 Total loans, net of unearned income and allowance for loan losses 27,805,137 — — 27,901,543 27,901,543 Short-term financial assets: Interest-bearing cash 1,013,254 1,013,254 — — 1,013,254 Federal funds sold 167,602 — 167,602 — 167,602 Securities purchased under agreements to resell 474,679 — 474,679 — 474,679 Total short-term financial assets 1,655,535 1,013,254 642,281 — 1,655,535 Trading securities (a) 1,681,727 — 1,680,330 1,397 1,681,727 Loans held-for-sale Mortgage loans (elected fair value) (a) 15,751 — — 15,751 15,751 USDA & SBA loans- LOCOM 495,451 — 499,307 1,015 500,322 Other consumer loans- LOCOM 24,238 — 6,101 18,137 24,238 Mortgage loans- LOCOM 59,222 — — 59,222 59,222 Total loans held-for-sale 594,662 — 505,408 94,125 599,533 Securities available-for-sale (a) 4,616,322 — 4,603,127 13,195 4,616,322 Securities held-to-maturity 10,000 — — 9,889 9,889 Derivative assets (a) 118,128 36,976 81,152 — 118,128 Other assets: Tax credit investments 164,509 — — 161,355 161,355 Deferred compensation mutual funds 41,097 41,097 — — 41,097 Equity, mutual funds, and other (b) 216,684 22,326 — 194,358 216,684 Total other assets 422,290 63,423 — 355,713 419,136 Total assets $ 36,903,801 $ 1,113,653 $ 7,512,298 $ 28,375,862 $ 37,001,813 Liabilities: Defined maturity deposits $ 4,454,622 $ — $ 4,454,687 $ — $ 4,454,687 Trading liabilities (a) 429,669 — 429,669 — 429,669 Short-term financial liabilities: Federal funds purchased 339,360 — 339,360 — 339,360 Securities sold under agreements to repurchase 745,788 — 745,788 — 745,788 Other short-term borrowings 140,832 — 140,832 — 140,832 Total short-term financial liabilities 1,225,980 — 1,225,980 — 1,225,980 Term borrowings: Real estate investment trust-preferred 46,185 — — 47,000 47,000 Term borrowings—new market tax credit investment 2,699 — — 2,678 2,678 Secured borrowings 21,119 — — 21,119 21,119 Junior subordinated debentures 143,589 — — 138,947 138,947 Other long term borrowings 964,334 — 967,047 — 967,047 Total term borrowings 1,177,926 — 967,047 209,744 1,176,791 Derivative liabilities (a) 107,123 36,688 41,465 28,970 107,123 Total liabilities $ 7,395,320 $ 36,688 $ 7,118,848 $ 238,714 $ 7,394,250 (a) Classes are detailed in the recurring and nonrecurring measurement tables. (b) Level 1 primarily consists of mutual funds with readily determinable fair values. Level 3 includes restricted investments in FHLB-Cincinnati stock of $63.7 million and FRB stock of $130.7 million . The following table summarizes the book value and estimated fair value of financial instruments recorded in the Consolidated Statements of Condition as of December 31, 2018 : December 31, 2018 Book Value Fair Value (Dollars in thousands) Level 1 Level 2 Level 3 Total Assets: Loans, net of unearned income and allowance for loan losses Commercial: Commercial, financial and industrial $ 16,415,381 $ — $ — $ 16,438,272 $ 16,438,272 Commercial real estate 3,999,559 — — 3,997,736 3,997,736 Consumer: Consumer real estate 6,223,077 — — 6,194,066 6,194,066 Permanent mortgage 211,448 — — 227,254 227,254 Credit card & other 505,643 — — 507,001 507,001 Total loans, net of unearned income and allowance for loan losses 27,355,108 — — 27,364,329 27,364,329 Short-term financial assets: Interest-bearing cash 1,277,611 1,277,611 — — 1,277,611 Federal funds sold 237,591 — 237,591 — 237,591 Securities purchased under agreements to resell 386,443 — 386,443 — 386,443 Total short-term financial assets 1,901,645 1,277,611 624,034 — 1,901,645 Trading securities (a) 1,448,168 — 1,446,644 1,524 1,448,168 Loans held-for-sale Mortgage loans (elected fair value) (a) 16,273 — — 16,273 16,273 USDA & SBA loans- LOCOM 578,291 — 582,476 1,015 583,491 Other consumer loans- LOCOM 25,134 — 6,422 18,712 25,134 Mortgage loans- LOCOM 59,451 — — 59,451 59,451 Total loans held-for-sale 679,149 — 588,898 95,451 684,349 Securities available-for-sale (a) 4,626,470 — 4,616,568 9,902 4,626,470 Securities held-to-maturity 10,000 — — 9,843 9,843 Derivative assets (a) 81,475 28,826 52,649 — 81,475 Other assets: Tax credit investments 163,300 — — 159,452 159,452 Deferred compensation assets 37,771 37,771 — — 37,771 Equity, mutual funds, and other (b) 240,780 22,248 — 218,532 240,780 Total other assets 441,851 60,019 — 377,984 438,003 Total assets $ 36,543,866 $ 1,366,456 $ 7,328,793 $ 27,859,033 $ 36,554,282 Liabilities: Deposits: Defined maturity $ 4,105,777 $ — $ 4,082,822 $ — $ 4,082,822 Trading liabilities (a) 335,380 — 335,380 — 335,380 Short-term financial liabilities: Federal funds purchased 256,567 — 256,567 — 256,567 Securities sold under agreements to repurchase 762,592 — 762,592 — 762,592 Other short-term borrowings 114,764 — 114,764 — 114,764 Total short-term financial liabilities 1,133,923 — 1,133,923 — 1,133,923 Term borrowings: Real estate investment trust-preferred 46,168 — — 47,000 47,000 Term borrowings—new market tax credit investment 2,699 — — 2,664 2,664 Secured Borrowings 19,588 — — 19,588 19,588 Junior subordinated debentures 143,255 — — 134,266 134,266 Other long term borrowings 959,253 — 960,483 — 960,483 Total term borrowings 1,170,963 — 960,483 203,518 1,164,001 Derivative liabilities (a) 133,713 30,236 71,937 31,540 133,713 Total liabilities $ 6,879,756 $ 30,236 $ 6,584,545 $ 235,058 $ 6,849,839 (a) Classes are detailed in the recurring and nonrecurring measurement tables. (b) Level 1 primarily consists of mutual funds with readily determinable fair values. Level 3 includes restricted investments in FHLB-Cincinnati stock of $87.9 million and FRB stock of $130.7 million . The following table presents the contractual amount and fair value of unfunded loan commitments and standby and other commitments as of March 31, 2019 and December 31, 2018 : Contractual Amount Fair Value (Dollars in thousands) March 31, 2019 December 31, 2018 March 31, 2019 December 31, 2018 Unfunded Commitments: Loan commitments $ 11,000,220 $ 10,884,975 $ 2,735 $ 2,551 Standby and other commitments 404,249 446,958 5,052 5,043

Restructuring, Repositioning,_2

Restructuring, Repositioning, and Efficiency (Tables)	3 Months Ended
	Mar. 31, 2019
Restructuring and Related Activities [Abstract]
Restructuring Expense Recognized	Total expense recognized for the three months ended March 31, 2019 is presented in the table below: Dollars in thousands Total Expense Employee compensation, incentives and benefits $ 6,505 Professional fees 4,295 Occupancy 817 Other (a) 535 Total restructuring and repositioning charges $ 12,152 (a) Primarily relates to costs associated with asset impairments.

Financial Information - Narrati

Financial Information - Narrative (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2019	Jan. 01, 2019
Product Information [Line Items]
Performance obligation, description of timing	one year or less
Operating lease right-of use assets	$ 179,028
Operating lease liabilities	198,091
Non-Interest income
Product Information [Line Items]
Accounts receivable	$ 7,900
Accounting Standards Update 2016-02
Product Information [Line Items]
Operating lease right-of use assets		$ 185,000
Operating lease liabilities		$ 204,000

Financial Information - ASU 201

Financial Information - ASU 2016-02 (Details) - USD ($) $ in Thousands	Mar. 31, 2019		Jan. 01, 2019	Dec. 31, 2018		Mar. 31, 2018
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Loans, net of unearned income	$ 27,990,048	[1]		$ 27,535,532	[1]	$ 27,249,793
Premises and equipment, net	484,494			494,041
Other assets	1,910,626			1,802,939
Other liabilities	748,606			580,335
Undivided profits	$ 1,595,568			$ 1,542,408
Accounting Standards Update 2016-02
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Loans, net of unearned income			$ 3,450
Premises and equipment, net			2,718
Other assets			183,884
Other liabilities			(191,010)
Undivided profits			$ 1,011
[1]	March 31, 2019 and December 31, 2018 include $24.1 million and $28.6 million, respectively, of held-to-maturity consumer mortgage loans secured by residential real estate in process of foreclosure.

Acquisitions and Divestitures -

Acquisitions and Divestitures - Narrative (Details) $ in Thousands	Mar. 23, 2018USD ($)branch	Nov. 30, 2017USD ($)branchshares	Jun. 30, 2018USD ($)shares	Apr. 30, 2019USD ($)	Mar. 31, 2019USD ($)	Dec. 31, 2018USD ($)	Mar. 31, 2018USD ($)	Dec. 31, 2017USD ($)
Business Acquisition [Line Items]
Goodwill					$ 1,432,787	$ 1,432,787	$ 1,398,501	$ 1,386,853
Capital Bank Financial Corp
Business Acquisition [Line Items]
Business acquisition, equity interest issued or issuable, number of shares (in shares) | shares		92,042,232
Payments to acquire businesses		$ 423,600	$ 46,000
Business combination, consideration transferred		$ 2,200,000
Business Acquisition, Equity Interest Issued or Issuable, Number of Shares Canceled | shares			2,373,220
Number of bank branches | branch		178
Assets acquired		$ 9,900,000
Loans		7,300,000
Securities available-for-sale		1,200,000
Deposits		8,100,000
Goodwill		$ 1,200,000
Apex Bank
Business Acquisition [Line Items]
Number of branches divested | branch	2
Deposits disposed of	$ 30,000
Loans disposed of	$ 2,000
Portion of Sub-prime Auto Loan Portfolios | Discontinued Operations, Disposed of by Sale
Business Acquisition [Line Items]
Loans disposed of			$ 120,000
Subsequent Event | Subprime Consumer Loans | Discontinued Operations, Held-for-sale
Business Acquisition [Line Items]
Loans disposed of				$ 25,000

Acquisitions and Divestitures_2

Acquisitions and Divestitures - Merger and Integration Expenses (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2019	Mar. 31, 2018
Business Acquisition [Line Items]
Merger and integration expense	$ 5,660	$ 31,374
Professional fees
Business Acquisition [Line Items]
Merger and integration expense	1,867	5,633
Employee compensation, incentives and benefits
Business Acquisition [Line Items]
Merger and integration expense	1,517	5,237
Contract employment and outsourcing
Business Acquisition [Line Items]
Merger and integration expense	0	1,399
Miscellaneous expense
Business Acquisition [Line Items]
Merger and integration expense	1,187	2,064
All other expense
Business Acquisition [Line Items]
Merger and integration expense	$ 1,089	$ 17,041

Investment Securities - Schedul

Investment Securities - Schedule Of FHN's Investment Securities (Details) - USD ($) $ in Thousands	Mar. 31, 2019	Dec. 31, 2018
Debt Securities, Available-for-sale [Line Items]
Securities available for sale, amortized cost	$ 4,639,167
Securities available-for-sale	4,616,322	$ 4,626,470
Schedule of Held-to-maturity Securities [Line Items]
Total	10,000	10,000
Securities held to maturity, gross unrealized gains	0	0
Securities held to maturity, gross unrealized losses	(111)	(157)
Securities held to maturity, fair value	9,889	9,843
Securities pledged as collateral	3,900,000	3,800,000
U.S. treasuries
Debt Securities, Available-for-sale [Line Items]
Securities available for sale, amortized cost	100	100
Securities available for sale, gross unrealized gains	0	0
Securities available for sale, gross unrealized losses	(1)	(2)
Securities available-for-sale	99	98
Government agency issued MBS
Debt Securities, Available-for-sale [Line Items]
Securities available for sale, amortized cost	2,398,177	2,473,687
Securities available for sale, gross unrealized gains	8,992	4,819
Securities available for sale, gross unrealized losses	(21,360)	(58,400)
Securities available-for-sale	2,385,809	2,420,106
Government agency issued CMO
Debt Securities, Available-for-sale [Line Items]
Securities available for sale, amortized cost	1,958,529	2,006,488
Securities available for sale, gross unrealized gains	2,020	888
Securities available for sale, gross unrealized losses	(28,765)	(48,681)
Securities available-for-sale	1,931,784	1,958,695
Other U.S. government agencies
Debt Securities, Available-for-sale [Line Items]
Securities available for sale, amortized cost	189,067	149,050
Securities available for sale, gross unrealized gains	1,761	809
Securities available for sale, gross unrealized losses	0	(73)
Securities available-for-sale	190,828	149,786
Corporates and other debt
Debt Securities, Available-for-sale [Line Items]
Securities available for sale, amortized cost	55,266	55,383
Securities available for sale, gross unrealized gains	302	388
Securities available for sale, gross unrealized losses	(384)	(461)
Securities available-for-sale	55,184	55,310
States and municipalities
Debt Securities, Available-for-sale [Line Items]
Securities available for sale, amortized cost	38,028	32,473
Securities available for sale, gross unrealized gains	1,395	314
Securities available for sale, gross unrealized losses	0	(214)
Securities available-for-sale	39,423	32,573
Securities available-for-sale, excluding interest only strip:
Debt Securities, Available-for-sale [Line Items]
Securities available for sale, amortized cost	4,639,167	4,717,181
Securities available for sale, gross unrealized gains	14,470	7,218
Securities available for sale, gross unrealized losses	(50,510)	(107,831)
Securities available-for-sale	4,603,127	4,616,568
Interest- only strips- AFS
Debt Securities, Available-for-sale [Line Items]
Securities available-for-sale	13,195	9,902
Corporate Bonds
Schedule of Held-to-maturity Securities [Line Items]
Total	10,000	10,000
Securities held to maturity, gross unrealized gains	0	0
Securities held to maturity, gross unrealized losses	(111)	(157)
Securities held to maturity, fair value	$ 9,889	$ 9,843

Investment Securities - Sched_2

Investment Securities - Schedule Of Amortized Cost And Fair Value By Contractual Maturity (Details) - USD ($) $ in Thousands	Mar. 31, 2019	Dec. 31, 2018
Held-to-Maturity, Amortized Cost
Within 1 year	$ 0
After 1 year; within 5 years	0
After 5 years; within 10 years	10,000
After 10 years	0
Subtotal	10,000
Government agency issued MBS and CMO	0
Total	10,000	$ 10,000
Held-to-Maturity, Fair Value
Within 1 year	0
After 1 year; within 5 years	0
After 5 years; within 10 years	9,889
After 10 years	0
Subtotal	9,889
Government agency issued MBS and CMO	0
Securities held to maturity, fair value	9,889	9,843
Available-for-Sale, Amortized Cost
Within 1 year	15,060
After 1 year; within 5 years	229,373
After 5 years; within 10 years	755
After 10 years	37,273
Subtotal	282,461
Government agency issued MBS and CMO	4,356,706
Securities available for sale, amortized cost	4,639,167
Available-for-Sale, Fair Value
Within 1 year	14,998
After 1 year; within 5 years	231,160
After 5 years; within 10 years	3,825
After 10 years	48,746
Subtotal	298,729
Government agency issued MBS and CMO	4,317,593
Securities available-for-sale	$ 4,616,322	$ 4,626,470

Investment Securities - Sched_3

Investment Securities - Schedule Of Realized Gross Gains And Losses On Sale From Available For Sale Portfolio (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2019	Mar. 31, 2018
Marketable Securities [Abstract]
Gross gains on sales of securities	$ 0	$ 52
Gross (losses) on sales of securities	0	0
Net gain/(loss) on sales of securities	$ 0	52
Cash proceeds		$ 0

Investment Securities - Sched_4

Investment Securities - Schedule Of Investments Within The Available For Sale Portfolio That Had Unrealized Losses (Details) - USD ($) $ in Thousands	Mar. 31, 2019	Dec. 31, 2018
Fair Value
Less than 12 months	$ 2,405	$ 960,053
12 months or longer	3,688,411	3,112,632
Total fair value	3,690,816	4,072,685
Unrealized Losses
Less than 12 months	(13)	(15,826)
12 months or longer	(50,497)	(92,005)
Total unrealized losses	(50,510)	(107,831)
U.S. treasuries
Fair Value
Less than 12 months	0	0
12 months or longer	99	98
Total fair value	99	98
Unrealized Losses
Less than 12 months	0	0
12 months or longer	(1)	(2)
Total unrealized losses	(1)	(2)
Government agency issued MBS
Fair Value
Less than 12 months	1,542	597,008
12 months or longer	1,948,718	1,537,106
Total fair value	1,950,260	2,134,114
Unrealized Losses
Less than 12 months	(13)	(12,335)
12 months or longer	(21,347)	(46,065)
Total unrealized losses	(21,360)	(58,400)
Government agency issued CMO
Fair Value
Less than 12 months	863	290,863
12 months or longer	1,699,529	1,560,420
Total fair value	1,700,392	1,851,283
Unrealized Losses
Less than 12 months	0	(2,860)
12 months or longer	(28,765)	(45,821)
Total unrealized losses	(28,765)	(48,681)
Other U.S. government agencies
Fair Value
Less than 12 months		29,776
12 months or longer		0
Total fair value		29,776
Unrealized Losses
Less than 12 months		(73)
12 months or longer		0
Total unrealized losses		(73)
Corporates and other debt
Fair Value
Less than 12 months	0	25,114
12 months or longer	40,065	15,008
Total fair value	40,065	40,122
Unrealized Losses
Less than 12 months	0	(344)
12 months or longer	(384)	(117)
Total unrealized losses	$ (384)	(461)
States and municipalities
Fair Value
Less than 12 months		17,292
12 months or longer		0
Total fair value		17,292
Unrealized Losses
Less than 12 months		(214)
12 months or longer		0
Total unrealized losses		$ (214)

Investment Securities - Narrati

Investment Securities - Narrative (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2019	Mar. 31, 2018	Dec. 31, 2018
Marketable Securities [Abstract]
Carrying amount of equity investments without a readily determinable fair value	$ 22.2		$ 21.3
Unrealized gain for equity investments with readily determinable fair values	$ 3.4	$ 0.3

Loans - Schedule Of Loans By Po

Loans - Schedule Of Loans By Portfolio Segment (Details) - USD ($) $ in Thousands	Mar. 31, 2019		Dec. 31, 2018		Mar. 31, 2018	Dec. 31, 2017
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans, net of unearned income	$ 27,990,048	[1]	$ 27,535,532	[1]	$ 27,249,793
Allowance for loan losses	184,911		180,424		187,194	$ 189,555
Total net loans	27,805,137		27,355,108
Commercial
Accounts, Notes, Loans and Financing Receivable [Line Items]
Allowance for loan losses	138,095		130,258
Commercial | Commercial, financial, and industrial
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans, net of unearned income	17,176,112		16,514,328		15,828,308
Allowance for loan losses	103,713		98,947		100,238	98,211
Commercial | Commercial real estate
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans, net of unearned income	3,946,943		4,030,870		4,234,435
Allowance for loan losses	34,382		31,311		29,057	28,427
Consumer | Consumer real Estate
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans, net of unearned income	6,151,503		6,249,516		6,355,519
Allowance for loan losses	24,073		26,439		35,201	39,823
Consumer | Permanent mortgage
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans, net of unearned income	209,260		222,448		270,721
Allowance for loan losses	10,081		11,000		12,984	13,113
Consumer | Credit Card and Other
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans, net of unearned income	506,230		518,370		560,810
Allowance for loan losses	12,662		12,727		$ 9,714	$ 9,981
Consumer | Restricted and secured consumer real estate loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans, net of unearned income	$ 15,000		$ 16,200
[1]	March 31, 2019 and December 31, 2018 include $24.1 million and $28.6 million, respectively, of held-to-maturity consumer mortgage loans secured by residential real estate in process of foreclosure.

Loans - Concentrations and Rest

Loans - Concentrations and Restrictions (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2019	Dec. 31, 2018
Consumer | Residential Real Estate
Accounts, Notes, Loans and Financing Receivable [Line Items]
Concentration risk, percentage	23.00%
Consumer | Consumer Real Estate
Accounts, Notes, Loans and Financing Receivable [Line Items]
Concentration risk, percentage	22.00%
Commercial
Accounts, Notes, Loans and Financing Receivable [Line Items]
Commercial loans	$ 21,123,055	$ 20,545,198
Commercial | Finance And Insurance Companies
Accounts, Notes, Loans and Financing Receivable [Line Items]
Commercial loans	$ 2,600,000
Percentage of commercial & industrial loan portfolio	15.00%
Percentage contributed in total loan	9.00%
Commercial | Loans To Mortgage Companies
Accounts, Notes, Loans and Financing Receivable [Line Items]
Commercial loans	$ 2,300,000
Percentage of commercial & industrial loan portfolio	13.00%
Percentage contributed in total loan	8.00%
Commercial | Finance Insurance And Loans To Mortgage Companies
Accounts, Notes, Loans and Financing Receivable [Line Items]
Percentage of commercial & industrial loan portfolio	28.00%

Loans - Certain Loans Acquired

Loans - Certain Loans Acquired In Transfer Not Accounted For As Debt Securities Accretable Yield Movement Schedule Rollforward (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2019	Mar. 31, 2018
Certain Loans Acquired in Transfer Accounted for as Debt Securities, Accretable Yield Movement Schedule [Roll Forward]
Balance, beginning of period	$ 13,375	$ 15,623
Accretion	(1,673)	(2,137)
Adjustment for payoffs	(462)	(612)
Adjustment for charge-offs	(176)	(551)
Increase/(decrease) in accretable yield	2,718	3,178
Other	0	(178)
Balance, end of period	$ 13,782	$ 15,323

Loans - Schedule Of Acquired Pu

Loans - Schedule Of Acquired Purchase Credit Impaired Loans By Portfolio Segment (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2019	Mar. 31, 2018	Dec. 31, 2018
Accounts, Notes, Loans and Financing Receivable [Line Items]
Allowance - purchased credit-impaired loans	$ 3,413	$ 2,555	$ 4,000
Provision for loan losses	9,000	(1,000)
Carrying value	72,871		86,420
Unpaid balance	81,717		98,190
Commercial
Accounts, Notes, Loans and Financing Receivable [Line Items]
Allowance - purchased credit-impaired loans	2,141		2,823
Commercial, financial, and industrial | Commercial
Accounts, Notes, Loans and Financing Receivable [Line Items]
Allowance - purchased credit-impaired loans	2,141	2,080
Provision for loan losses	7,038	2,583
Carrying value	34,619		38,873
Unpaid balance	38,575		44,259
Commercial Real Estate | Commercial
Accounts, Notes, Loans and Financing Receivable [Line Items]
Allowance - purchased credit-impaired loans	0	188
Provision for loan losses	3,448	668
Carrying value	8,402		15,197
Unpaid balance	9,301		17,232
Consumer Real Estate | Consumer
Accounts, Notes, Loans and Financing Receivable [Line Items]
Allowance - purchased credit-impaired loans	1,123	275
Provision for loan losses	(3,019)	(7,094)
Carrying value	28,723		30,723
Unpaid balance	32,464		34,820
Credit Card and Other | Consumer
Accounts, Notes, Loans and Financing Receivable [Line Items]
Allowance - purchased credit-impaired loans	149	12
Provision for loan losses	3,036	2,877
Carrying value	1,127		1,627
Unpaid balance	1,377		$ 1,879
PCI Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Provision for loan losses	$ (400)	$ 800

Loans - Information By Class Re

Loans - Information By Class Related To Individually Impaired Loans (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2019	Mar. 31, 2018	Dec. 31, 2018
Recorded Investment
Recorded Investment	$ 275,148		$ 240,533
Unpaid Principal Balance
Unpaid Principal Balance	303,551		269,468
Related Allowance	27,806		28,814
Average Recorded Investment
Average Recorded Investment	257,841	$ 254,660
Interest Income Recognized
Interest Income Recognized	1,546	1,612
Commercial
Recorded Investment
Impaired loans with no related allowance recorded, Recorded investment	70,151		44,491
Impaired loans with related allowance recorded, Recorded investment	14,981		6,067
Recorded Investment	85,132		50,558
Unpaid Principal Balance
Impaired loans with no related allowance recorded, Unpaid principal balance	72,623		46,976
Impaired loans with related allowance recorded, Unpaid principal balance	15,843		6,879
Unpaid Principal Balance	88,466		53,855
Related Allowance	3,437		1,074
Average Recorded Investment
Impaired loans with no related allowance recorded, Average recorded investment	57,321	16,993
Impaired loans with related allowance recorded, Average recorded investment	10,524	27,142
Average Recorded Investment	67,845	44,135
Interest Income Recognized
Impaired loans with no related allowance recorded, Interest income recognized	193	187
Impaired Financing Impaired loans with related allowance recorded, Interest income recognized	4	0
Interest Income Recognized	197	187
Consumer
Recorded Investment
Impaired loans with no related allowance recorded, Recorded investment	15,907		16,560
Impaired loans with related allowance recorded, Recorded investment	174,109		173,415
Recorded Investment	190,016		189,975
Unpaid Principal Balance
Impaired loans with no related allowance recorded, Unpaid principal balance	26,413		27,447
Impaired loans with related allowance recorded, Unpaid principal balance	188,672		188,166
Unpaid Principal Balance	215,085		215,613
Related Allowance	24,369		27,740
Average Recorded Investment
Impaired loans with no related allowance recorded, Average recorded investment	16,234	18,388
Impaired loans with related allowance recorded, Average recorded investment	173,762	192,137
Average Recorded Investment	189,996	210,525
Interest Income Recognized
Impaired loans with no related allowance recorded, Interest income recognized	0	0
Impaired Financing Impaired loans with related allowance recorded, Interest income recognized	1,349	1,425
Interest Income Recognized	1,349	1,425
Commercial, financial, and industrial | Commercial | General C&I
Recorded Investment
Impaired loans with no related allowance recorded, Recorded investment	68,629		42,902
Impaired loans with related allowance recorded, Recorded investment	11,786		2,802
Unpaid Principal Balance
Impaired loans with no related allowance recorded, Unpaid principal balance	71,101		45,387
Impaired loans with related allowance recorded, Unpaid principal balance	11,786		2,802
Related Allowance	2,512		149
Average Recorded Investment
Impaired loans with no related allowance recorded, Average recorded investment	55,765	15,954
Impaired loans with related allowance recorded, Average recorded investment	7,294	22,891
Interest Income Recognized
Impaired loans with no related allowance recorded, Interest income recognized	180	175
Impaired Financing Impaired loans with related allowance recorded, Interest income recognized	0	0
Commercial, financial, and industrial | Commercial | TRUPs
Recorded Investment
Impaired loans with related allowance recorded, Recorded investment	2,838		2,888
Unpaid Principal Balance
Impaired loans with related allowance recorded, Unpaid principal balance	3,700		3,700
Related Allowance	925		925
Average Recorded Investment
Impaired loans with related allowance recorded, Average recorded investment	2,863	3,047
Interest Income Recognized
Impaired Financing Impaired loans with related allowance recorded, Interest income recognized	0	0
Commercial real estate | Commercial | Income CRE
Recorded Investment
Impaired loans with no related allowance recorded, Recorded investment	1,522		1,589
Impaired loans with related allowance recorded, Recorded investment	357		377
Unpaid Principal Balance
Impaired loans with no related allowance recorded, Unpaid principal balance	1,522		1,589
Impaired loans with related allowance recorded, Unpaid principal balance	357		377
Related Allowance	0		0
Average Recorded Investment
Impaired loans with no related allowance recorded, Average recorded investment	1,556	791
Impaired loans with related allowance recorded, Average recorded investment	367	806
Interest Income Recognized
Impaired loans with no related allowance recorded, Interest income recognized	13	12
Impaired Financing Impaired loans with related allowance recorded, Interest income recognized	4	0
Commercial real estate | Commercial | Residential C R E
Average Recorded Investment
Impaired loans with no related allowance recorded, Average recorded investment	0	248
Impaired loans with related allowance recorded, Average recorded investment	0	398
Interest Income Recognized
Impaired loans with no related allowance recorded, Interest income recognized	0	0
Impaired Financing Impaired loans with related allowance recorded, Interest income recognized	0	0
Consumer Real Estate | Consumer | Home Equity Line of Credit
Recorded Investment
Impaired loans with no related allowance recorded, Recorded investment	6,548		8,645
Impaired loans with related allowance recorded, Recorded investment	63,546		66,482
Unpaid Principal Balance
Impaired loans with no related allowance recorded, Unpaid principal balance	13,869		16,648
Impaired loans with related allowance recorded, Unpaid principal balance	66,801		69,610
Related Allowance	8,378		11,241
Average Recorded Investment
Impaired loans with no related allowance recorded, Average recorded investment	7,597	9,257
Impaired loans with related allowance recorded, Average recorded investment	65,013	71,654
Interest Income Recognized
Impaired loans with no related allowance recorded, Interest income recognized	0	0
Impaired Financing Impaired loans with related allowance recorded, Interest income recognized	522	577
Consumer Real Estate | Consumer | R/E installment loans
Recorded Investment
Impaired loans with no related allowance recorded, Recorded investment	5,910		4,314
Impaired loans with related allowance recorded, Recorded investment	43,949		38,993
Unpaid Principal Balance
Impaired loans with no related allowance recorded, Unpaid principal balance	6,693		4,796
Impaired loans with related allowance recorded, Unpaid principal balance	44,898		39,851
Related Allowance	6,464		6,743
Average Recorded Investment
Impaired loans with no related allowance recorded, Average recorded investment	5,112	3,914
Impaired loans with related allowance recorded, Average recorded investment	41,471	42,110
Interest Income Recognized
Impaired loans with no related allowance recorded, Interest income recognized	0	0
Impaired Financing Impaired loans with related allowance recorded, Interest income recognized	270	267
Permanent Mortgage | Consumer
Recorded Investment
Impaired loans with no related allowance recorded, Recorded investment	3,449		3,601
Impaired loans with related allowance recorded, Recorded investment	65,930		67,245
Unpaid Principal Balance
Impaired loans with no related allowance recorded, Unpaid principal balance	5,851		6,003
Impaired loans with related allowance recorded, Unpaid principal balance	76,289		78,010
Related Allowance	9,081		9,419
Average Recorded Investment
Impaired loans with no related allowance recorded, Average recorded investment	3,525	5,217
Impaired loans with related allowance recorded, Average recorded investment	66,588	77,725
Interest Income Recognized
Impaired loans with no related allowance recorded, Interest income recognized	0	0
Impaired Financing Impaired loans with related allowance recorded, Interest income recognized	552	578
Credit Card and Other | Consumer
Recorded Investment
Impaired loans with related allowance recorded, Recorded investment	684		695
Unpaid Principal Balance
Impaired loans with related allowance recorded, Unpaid principal balance	684		695
Related Allowance	446		$ 337
Average Recorded Investment
Impaired loans with related allowance recorded, Average recorded investment	690	648
Interest Income Recognized
Impaired Financing Impaired loans with related allowance recorded, Interest income recognized	$ 5	$ 3

Loans - Asset Quality Indicator

Loans - Asset Quality Indicators (Details)	Mar. 31, 2019USD ($)
PD Grade 1
Accounts, Notes, Loans and Financing Receivable [Line Items]
Lowest expected default probability	1
Special Mention
Accounts, Notes, Loans and Financing Receivable [Line Items]
Commercial loan grades	13
Substandard
Accounts, Notes, Loans and Financing Receivable [Line Items]
Commercial loan grades	14
Doubtful
Accounts, Notes, Loans and Financing Receivable [Line Items]
Commercial loan grades	15
Loss
Accounts, Notes, Loans and Financing Receivable [Line Items]
Commercial loan grades	16
Minimum | Pass
Accounts, Notes, Loans and Financing Receivable [Line Items]
Commercial loan grades	1
Minimum | Special Mention
Accounts, Notes, Loans and Financing Receivable [Line Items]
Commercial loan grades	13
Minimum | Loan Reassessed
Accounts, Notes, Loans and Financing Receivable [Line Items]
Commercial loans	$ 1,000,000
Minimum | PD Grade 13
Accounts, Notes, Loans and Financing Receivable [Line Items]
Commercial loans	$ 500,000
Minimum | LGD Grade 1
Accounts, Notes, Loans and Financing Receivable [Line Items]
Commercial loan grades	1
Maximum | Pass
Accounts, Notes, Loans and Financing Receivable [Line Items]
Commercial loan grades	12
Maximum | Loss
Accounts, Notes, Loans and Financing Receivable [Line Items]
Commercial loan grades	16
Maximum | LGD Grade 12
Accounts, Notes, Loans and Financing Receivable [Line Items]
Commercial loan grades	12

Loans - Balances Of Commercial

Loans - Balances Of Commercial Loan Portfolio Classes, Disaggregated By PD Grade (Details) - USD ($) $ in Thousands	Mar. 31, 2019	Dec. 31, 2018	Mar. 31, 2018	Dec. 31, 2017
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans and Leases Receivable, Allowance	$ 184,911	$ 180,424	$ 187,194	$ 189,555
Total loans collectively evaluated for impairment	27,638,617		26,847,384
Total loans individually evaluated for impairment	275,148		249,602
Purchased credit-impaired loans	76,283		152,807
Allowance - collectively evaluated for impairment	153,692		145,365
Allowance - individually evaluated for impairment	27,806		39,274
Allowance - purchased credit-impaired loans	$ 3,413	$ 4,000	2,555
Commercial
Accounts, Notes, Loans and Financing Receivable [Line Items]
Percent of total commercial loans (percent)	100.00%	100.00%
Loans and Leases Receivable, Allowance	$ 138,095	$ 130,258
Total loans collectively evaluated for impairment	20,992,761	20,437,747
Total loans individually evaluated for impairment	85,132	50,558
Purchased credit-impaired loans	45,162	56,893
Total commercial loans	$ 21,123,055	$ 20,545,198
Percent of loan collectively evaluated for impairment (percent)	100.00%	100.00%
Percent of loan individually evaluated for impairment (percent)	0.00%	0.00%
Percent of loan purchased-credit impaired (percent)	0.00%	0.00%
Allowance - collectively evaluated for impairment	$ 132,517	$ 126,361
Allowance - individually evaluated for impairment	3,437	1,074
Allowance - purchased credit-impaired loans	2,141	2,823
Commercial Loan P D Grade One | Commercial
Accounts, Notes, Loans and Financing Receivable [Line Items]
Commercial loan, disaggregated by PD grade	$ 647,270	$ 622,763
Percent of total commercial loans (percent)	3.00%	3.00%
Loans and Leases Receivable, Allowance	$ 100	$ 100
Commercial Loan P D Grade Two | Commercial
Accounts, Notes, Loans and Financing Receivable [Line Items]
Commercial loan, disaggregated by PD grade	$ 851,828	$ 837,493
Percent of total commercial loans (percent)	4.00%	4.00%
Loans and Leases Receivable, Allowance	$ 267	$ 274
Commercial Loan P D Grade Three | Commercial
Accounts, Notes, Loans and Financing Receivable [Line Items]
Commercial loan, disaggregated by PD grade	$ 1,705,269	$ 1,789,074
Percent of total commercial loans (percent)	8.00%	9.00%
Loans and Leases Receivable, Allowance	$ 338	$ 315
Commercial Loan P D Grade Four | Commercial
Accounts, Notes, Loans and Financing Receivable [Line Items]
Commercial loan, disaggregated by PD grade	$ 2,225,071	$ 2,224,417
Percent of total commercial loans (percent)	11.00%	11.00%
Loans and Leases Receivable, Allowance	$ 806	$ 686
Commercial Loan P D Grade Five | Commercial
Accounts, Notes, Loans and Financing Receivable [Line Items]
Commercial loan, disaggregated by PD grade	$ 3,224,216	$ 3,088,258
Percent of total commercial loans (percent)	15.00%	15.00%
Loans and Leases Receivable, Allowance	$ 10,033	$ 8,919
Commercial Loan P D Grade Six | Commercial
Accounts, Notes, Loans and Financing Receivable [Line Items]
Commercial loan, disaggregated by PD grade	$ 3,107,562	$ 2,824,473
Percent of total commercial loans (percent)	15.00%	14.00%
Loans and Leases Receivable, Allowance	$ 9,700	$ 8,141
Commercial Loan P D Grade Seven | Commercial
Accounts, Notes, Loans and Financing Receivable [Line Items]
Commercial loan, disaggregated by PD grade	$ 3,475,528	$ 3,363,877
Percent of total commercial loans (percent)	17.00%	16.00%
Loans and Leases Receivable, Allowance	$ 18,677	$ 16,906
Commercial Loan P D Grade Eight | Commercial
Accounts, Notes, Loans and Financing Receivable [Line Items]
Commercial loan, disaggregated by PD grade	$ 1,821,908	$ 1,676,558
Percent of total commercial loans (percent)	9.00%	8.00%
Loans and Leases Receivable, Allowance	$ 20,047	$ 18,545
Commercial Loan P D Grade Nine | Commercial
Accounts, Notes, Loans and Financing Receivable [Line Items]
Commercial loan, disaggregated by PD grade	$ 2,005,281	$ 2,099,294
Percent of total commercial loans (percent)	9.00%	10.00%
Loans and Leases Receivable, Allowance	$ 16,042	$ 15,454
Commercial Loan P D Grade Ten | Commercial
Accounts, Notes, Loans and Financing Receivable [Line Items]
Commercial loan, disaggregated by PD grade	$ 600,122	$ 587,305
Percent of total commercial loans (percent)	3.00%	3.00%
Loans and Leases Receivable, Allowance	$ 8,739	$ 8,675
Commercial Loan P D Grade Eleven | Commercial
Accounts, Notes, Loans and Financing Receivable [Line Items]
Commercial loan, disaggregated by PD grade	$ 460,823	$ 379,741
Percent of total commercial loans (percent)	2.00%	2.00%
Loans and Leases Receivable, Allowance	$ 10,353	$ 7,973
Commercial Loan P D Grade Twelve | Commercial
Accounts, Notes, Loans and Financing Receivable [Line Items]
Commercial loan, disaggregated by PD grade	$ 343,389	$ 342,537
Percent of total commercial loans (percent)	2.00%	2.00%
Loans and Leases Receivable, Allowance	$ 6,172	$ 6,972
Commercial Loan P D Grade Thirteen | Commercial
Accounts, Notes, Loans and Financing Receivable [Line Items]
Commercial loan, disaggregated by PD grade	$ 281,001	$ 347,432
Percent of total commercial loans (percent)	1.00%	2.00%
Loans and Leases Receivable, Allowance	$ 9,652	$ 10,094
Commercial Loan P D Grade Fourteen Fifteen Sixteen | Commercial
Accounts, Notes, Loans and Financing Receivable [Line Items]
Commercial loan, disaggregated by PD grade	$ 243,493	$ 254,525
Percent of total commercial loans (percent)	1.00%	1.00%
Loans and Leases Receivable, Allowance	$ 21,591	$ 23,307
C&I | Commercial
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans and Leases Receivable, Allowance	103,713	98,947	100,238	98,211
Total loans collectively evaluated for impairment	17,056,034		15,705,895
Total loans individually evaluated for impairment	83,253		40,758
Purchased credit-impaired loans	36,825		81,655
Allowance - collectively evaluated for impairment	98,135		93,603
Allowance - individually evaluated for impairment	3,437		4,555
Allowance - purchased credit-impaired loans	2,141		2,080
C&I | General C&I | Commercial
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans collectively evaluated for impairment	14,508,130	14,152,795
Total loans individually evaluated for impairment	80,415	45,704
Purchased credit-impaired loans	36,825	41,730
Total commercial loans	14,625,370	14,240,229
C&I | Loans to Mortgage Companies | Commercial
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans collectively evaluated for impairment	2,301,340	2,023,746
Total loans individually evaluated for impairment	0	0
Purchased credit-impaired loans	0	0
Total commercial loans	2,301,340	2,023,746
C&I | TRUPs | Commercial
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans collectively evaluated for impairment	246,564	247,465
Total loans individually evaluated for impairment	2,838	2,888
Purchased credit-impaired loans	0	0
Total commercial loans	249,402	250,353
Valuation allowance	20,200	20,200
C&I | Commercial Loan P D Grade One | General C&I | Commercial
Accounts, Notes, Loans and Financing Receivable [Line Items]
Commercial loan, disaggregated by PD grade	635,273	610,177
C&I | Commercial Loan P D Grade One | Loans to Mortgage Companies | Commercial
Accounts, Notes, Loans and Financing Receivable [Line Items]
Commercial loan, disaggregated by PD grade	0	0
C&I | Commercial Loan P D Grade One | TRUPs | Commercial
Accounts, Notes, Loans and Financing Receivable [Line Items]
Commercial loan, disaggregated by PD grade	0	0
C&I | Commercial Loan P D Grade Two | General C&I | Commercial
Accounts, Notes, Loans and Financing Receivable [Line Items]
Commercial loan, disaggregated by PD grade	849,658	835,776
C&I | Commercial Loan P D Grade Two | Loans to Mortgage Companies | Commercial
Accounts, Notes, Loans and Financing Receivable [Line Items]
Commercial loan, disaggregated by PD grade	0	0
C&I | Commercial Loan P D Grade Two | TRUPs | Commercial
Accounts, Notes, Loans and Financing Receivable [Line Items]
Commercial loan, disaggregated by PD grade	0	0
C&I | Commercial Loan P D Grade Three | General C&I | Commercial
Accounts, Notes, Loans and Financing Receivable [Line Items]
Commercial loan, disaggregated by PD grade	720,323	782,362
C&I | Commercial Loan P D Grade Three | Loans to Mortgage Companies | Commercial
Accounts, Notes, Loans and Financing Receivable [Line Items]
Commercial loan, disaggregated by PD grade	689,936	716,971
C&I | Commercial Loan P D Grade Three | TRUPs | Commercial
Accounts, Notes, Loans and Financing Receivable [Line Items]
Commercial loan, disaggregated by PD grade	3,314	0
C&I | Commercial Loan P D Grade Four | General C&I | Commercial
Accounts, Notes, Loans and Financing Receivable [Line Items]
Commercial loan, disaggregated by PD grade	1,201,020	1,223,092
C&I | Commercial Loan P D Grade Four | Loans to Mortgage Companies | Commercial
Accounts, Notes, Loans and Financing Receivable [Line Items]
Commercial loan, disaggregated by PD grade	478,359	394,862
C&I | Commercial Loan P D Grade Four | TRUPs | Commercial
Accounts, Notes, Loans and Financing Receivable [Line Items]
Commercial loan, disaggregated by PD grade	32,498	43,220
C&I | Commercial Loan P D Grade Five | General C&I | Commercial
Accounts, Notes, Loans and Financing Receivable [Line Items]
Commercial loan, disaggregated by PD grade	1,904,650	1,920,034
C&I | Commercial Loan P D Grade Five | Loans to Mortgage Companies | Commercial
Accounts, Notes, Loans and Financing Receivable [Line Items]
Commercial loan, disaggregated by PD grade	347,923	277,814
C&I | Commercial Loan P D Grade Five | TRUPs | Commercial
Accounts, Notes, Loans and Financing Receivable [Line Items]
Commercial loan, disaggregated by PD grade	96,052	77,751
C&I | Commercial Loan P D Grade Six | General C&I | Commercial
Accounts, Notes, Loans and Financing Receivable [Line Items]
Commercial loan, disaggregated by PD grade	1,992,100	1,722,136
C&I | Commercial Loan P D Grade Six | Loans to Mortgage Companies | Commercial
Accounts, Notes, Loans and Financing Receivable [Line Items]
Commercial loan, disaggregated by PD grade	400,889	365,341
C&I | Commercial Loan P D Grade Six | TRUPs | Commercial
Accounts, Notes, Loans and Financing Receivable [Line Items]
Commercial loan, disaggregated by PD grade	33,815	45,609
C&I | Commercial Loan P D Grade Seven | General C&I | Commercial
Accounts, Notes, Loans and Financing Receivable [Line Items]
Commercial loan, disaggregated by PD grade	2,794,923	2,690,784
C&I | Commercial Loan P D Grade Seven | Loans to Mortgage Companies | Commercial
Accounts, Notes, Loans and Financing Receivable [Line Items]
Commercial loan, disaggregated by PD grade	94,626	96,603
C&I | Commercial Loan P D Grade Seven | TRUPs | Commercial
Accounts, Notes, Loans and Financing Receivable [Line Items]
Commercial loan, disaggregated by PD grade	11,446	11,446
C&I | Commercial Loan P D Grade Eight | General C&I | Commercial
Accounts, Notes, Loans and Financing Receivable [Line Items]
Commercial loan, disaggregated by PD grade	1,344,591	1,337,113
C&I | Commercial Loan P D Grade Eight | Loans to Mortgage Companies | Commercial
Accounts, Notes, Loans and Financing Receivable [Line Items]
Commercial loan, disaggregated by PD grade	172,050	53,224
C&I | Commercial Loan P D Grade Eight | TRUPs | Commercial
Accounts, Notes, Loans and Financing Receivable [Line Items]
Commercial loan, disaggregated by PD grade	0	0
C&I | Commercial Loan P D Grade Nine | General C&I | Commercial
Accounts, Notes, Loans and Financing Receivable [Line Items]
Commercial loan, disaggregated by PD grade	1,460,633	1,472,852
C&I | Commercial Loan P D Grade Nine | Loans to Mortgage Companies | Commercial
Accounts, Notes, Loans and Financing Receivable [Line Items]
Commercial loan, disaggregated by PD grade	104,832	96,292
C&I | Commercial Loan P D Grade Nine | TRUPs | Commercial
Accounts, Notes, Loans and Financing Receivable [Line Items]
Commercial loan, disaggregated by PD grade	45,117	45,117
C&I | Commercial Loan P D Grade Ten | General C&I | Commercial
Accounts, Notes, Loans and Financing Receivable [Line Items]
Commercial loan, disaggregated by PD grade	492,043	490,795
C&I | Commercial Loan P D Grade Ten | Loans to Mortgage Companies | Commercial
Accounts, Notes, Loans and Financing Receivable [Line Items]
Commercial loan, disaggregated by PD grade	12,579	13,260
C&I | Commercial Loan P D Grade Ten | TRUPs | Commercial
Accounts, Notes, Loans and Financing Receivable [Line Items]
Commercial loan, disaggregated by PD grade	18,536	18,536
C&I | Commercial Loan P D Grade Eleven | General C&I | Commercial
Accounts, Notes, Loans and Financing Receivable [Line Items]
Commercial loan, disaggregated by PD grade	395,393	311,967
C&I | Commercial Loan P D Grade Eleven | Loans to Mortgage Companies | Commercial
Accounts, Notes, Loans and Financing Receivable [Line Items]
Commercial loan, disaggregated by PD grade	0	0
C&I | Commercial Loan P D Grade Eleven | TRUPs | Commercial
Accounts, Notes, Loans and Financing Receivable [Line Items]
Commercial loan, disaggregated by PD grade	0	0
C&I | Commercial Loan P D Grade Twelve | General C&I | Commercial
Accounts, Notes, Loans and Financing Receivable [Line Items]
Commercial loan, disaggregated by PD grade	289,203	244,867
C&I | Commercial Loan P D Grade Twelve | Loans to Mortgage Companies | Commercial
Accounts, Notes, Loans and Financing Receivable [Line Items]
Commercial loan, disaggregated by PD grade	146	9,379
C&I | Commercial Loan P D Grade Twelve | TRUPs | Commercial
Accounts, Notes, Loans and Financing Receivable [Line Items]
Commercial loan, disaggregated by PD grade	0	0
C&I | Commercial Loan P D Grade Thirteen | General C&I | Commercial
Accounts, Notes, Loans and Financing Receivable [Line Items]
Commercial loan, disaggregated by PD grade	223,362	285,987
C&I | Commercial Loan P D Grade Thirteen | Loans to Mortgage Companies | Commercial
Accounts, Notes, Loans and Financing Receivable [Line Items]
Commercial loan, disaggregated by PD grade	0	0
C&I | Commercial Loan P D Grade Thirteen | TRUPs | Commercial
Accounts, Notes, Loans and Financing Receivable [Line Items]
Commercial loan, disaggregated by PD grade	5,786	5,786
C&I | Commercial Loan P D Grade Fourteen Fifteen Sixteen | General C&I | Commercial
Accounts, Notes, Loans and Financing Receivable [Line Items]
Commercial loan, disaggregated by PD grade	204,958	224,853
C&I | Commercial Loan P D Grade Fourteen Fifteen Sixteen | Loans to Mortgage Companies | Commercial
Accounts, Notes, Loans and Financing Receivable [Line Items]
Commercial loan, disaggregated by PD grade	0	0
C&I | Commercial Loan P D Grade Fourteen Fifteen Sixteen | TRUPs | Commercial
Accounts, Notes, Loans and Financing Receivable [Line Items]
Commercial loan, disaggregated by PD grade	0	0
Commercial real estate | Commercial
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans and Leases Receivable, Allowance	34,382	31,311	29,057	$ 28,427
Total loans collectively evaluated for impairment	3,936,727		4,201,220
Total loans individually evaluated for impairment	1,879		2,077
Purchased credit-impaired loans	8,337		31,138
Allowance - collectively evaluated for impairment	34,382		28,869
Allowance - individually evaluated for impairment	0		0
Allowance - purchased credit-impaired loans	0		$ 188
Commercial real estate | Income CRE | Commercial
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans collectively evaluated for impairment	3,786,183	3,877,848
Total loans individually evaluated for impairment	1,879	1,966
Purchased credit-impaired loans	6,043	12,730
Total commercial loans	3,794,105	3,892,544
Commercial real estate | Residential C R E | Commercial
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans collectively evaluated for impairment	150,544	135,893
Total loans individually evaluated for impairment	0	0
Purchased credit-impaired loans	2,294	2,433
Total commercial loans	152,838	138,326
Commercial real estate | Commercial Loan P D Grade One | Income CRE | Commercial
Accounts, Notes, Loans and Financing Receivable [Line Items]
Commercial loan, disaggregated by PD grade	11,997	12,586
Commercial real estate | Commercial Loan P D Grade One | Residential C R E | Commercial
Accounts, Notes, Loans and Financing Receivable [Line Items]
Commercial loan, disaggregated by PD grade	0	0
Commercial real estate | Commercial Loan P D Grade Two | Income CRE | Commercial
Accounts, Notes, Loans and Financing Receivable [Line Items]
Commercial loan, disaggregated by PD grade	2,144	1,688
Commercial real estate | Commercial Loan P D Grade Two | Residential C R E | Commercial
Accounts, Notes, Loans and Financing Receivable [Line Items]
Commercial loan, disaggregated by PD grade	26	29
Commercial real estate | Commercial Loan P D Grade Three | Income CRE | Commercial
Accounts, Notes, Loans and Financing Receivable [Line Items]
Commercial loan, disaggregated by PD grade	291,517	289,594
Commercial real estate | Commercial Loan P D Grade Three | Residential C R E | Commercial
Accounts, Notes, Loans and Financing Receivable [Line Items]
Commercial loan, disaggregated by PD grade	179	147
Commercial real estate | Commercial Loan P D Grade Four | Income CRE | Commercial
Accounts, Notes, Loans and Financing Receivable [Line Items]
Commercial loan, disaggregated by PD grade	513,082	563,243
Commercial real estate | Commercial Loan P D Grade Four | Residential C R E | Commercial
Accounts, Notes, Loans and Financing Receivable [Line Items]
Commercial loan, disaggregated by PD grade	112	0
Commercial real estate | Commercial Loan P D Grade Five | Income CRE | Commercial
Accounts, Notes, Loans and Financing Receivable [Line Items]
Commercial loan, disaggregated by PD grade	855,280	798,509
Commercial real estate | Commercial Loan P D Grade Five | Residential C R E | Commercial
Accounts, Notes, Loans and Financing Receivable [Line Items]
Commercial loan, disaggregated by PD grade	20,311	14,150
Commercial real estate | Commercial Loan P D Grade Six | Income CRE | Commercial
Accounts, Notes, Loans and Financing Receivable [Line Items]
Commercial loan, disaggregated by PD grade	636,472	657,628
Commercial real estate | Commercial Loan P D Grade Six | Residential C R E | Commercial
Accounts, Notes, Loans and Financing Receivable [Line Items]
Commercial loan, disaggregated by PD grade	44,286	33,759
Commercial real estate | Commercial Loan P D Grade Seven | Income CRE | Commercial
Accounts, Notes, Loans and Financing Receivable [Line Items]
Commercial loan, disaggregated by PD grade	544,211	538,909
Commercial real estate | Commercial Loan P D Grade Seven | Residential C R E | Commercial
Accounts, Notes, Loans and Financing Receivable [Line Items]
Commercial loan, disaggregated by PD grade	30,322	26,135
Commercial real estate | Commercial Loan P D Grade Eight | Income CRE | Commercial
Accounts, Notes, Loans and Financing Receivable [Line Items]
Commercial loan, disaggregated by PD grade	280,323	265,901
Commercial real estate | Commercial Loan P D Grade Eight | Residential C R E | Commercial
Accounts, Notes, Loans and Financing Receivable [Line Items]
Commercial loan, disaggregated by PD grade	24,944	20,320
Commercial real estate | Commercial Loan P D Grade Nine | Income CRE | Commercial
Accounts, Notes, Loans and Financing Receivable [Line Items]
Commercial loan, disaggregated by PD grade	377,027	455,184
Commercial real estate | Commercial Loan P D Grade Nine | Residential C R E | Commercial
Accounts, Notes, Loans and Financing Receivable [Line Items]
Commercial loan, disaggregated by PD grade	17,672	29,849
Commercial real estate | Commercial Loan P D Grade Ten | Income CRE | Commercial
Accounts, Notes, Loans and Financing Receivable [Line Items]
Commercial loan, disaggregated by PD grade	73,040	60,803
Commercial real estate | Commercial Loan P D Grade Ten | Residential C R E | Commercial
Accounts, Notes, Loans and Financing Receivable [Line Items]
Commercial loan, disaggregated by PD grade	3,924	3,911
Commercial real estate | Commercial Loan P D Grade Eleven | Income CRE | Commercial
Accounts, Notes, Loans and Financing Receivable [Line Items]
Commercial loan, disaggregated by PD grade	63,318	66,986
Commercial real estate | Commercial Loan P D Grade Eleven | Residential C R E | Commercial
Accounts, Notes, Loans and Financing Receivable [Line Items]
Commercial loan, disaggregated by PD grade	2,112	788
Commercial real estate | Commercial Loan P D Grade Twelve | Income CRE | Commercial
Accounts, Notes, Loans and Financing Receivable [Line Items]
Commercial loan, disaggregated by PD grade	48,454	82,574
Commercial real estate | Commercial Loan P D Grade Twelve | Residential C R E | Commercial
Accounts, Notes, Loans and Financing Receivable [Line Items]
Commercial loan, disaggregated by PD grade	5,586	5,717
Commercial real estate | Commercial Loan P D Grade Thirteen | Income CRE | Commercial
Accounts, Notes, Loans and Financing Receivable [Line Items]
Commercial loan, disaggregated by PD grade	51,615	55,408
Commercial real estate | Commercial Loan P D Grade Thirteen | Residential C R E | Commercial
Accounts, Notes, Loans and Financing Receivable [Line Items]
Commercial loan, disaggregated by PD grade	238	251
Commercial real estate | Commercial Loan P D Grade Fourteen Fifteen Sixteen | Income CRE | Commercial
Accounts, Notes, Loans and Financing Receivable [Line Items]
Commercial loan, disaggregated by PD grade	37,703	28,835
Commercial real estate | Commercial Loan P D Grade Fourteen Fifteen Sixteen | Residential C R E | Commercial
Accounts, Notes, Loans and Financing Receivable [Line Items]
Commercial loan, disaggregated by PD grade	$ 832	$ 837

Loans - Loans by FICO Score, Co

Loans - Loans by FICO Score, Consumer (Details) - Consumer	Mar. 31, 2019	Dec. 31, 2018
HELOC | FICO score 740 or greater
Accounts, Notes, Loans and Financing Receivable [Line Items]
Average refreshed FICO score (percent)	61.00%	61.40%
HELOC | FICO score 720-739
Accounts, Notes, Loans and Financing Receivable [Line Items]
Average refreshed FICO score (percent)	8.80%	8.50%
HELOC | FICO score 700-719
Accounts, Notes, Loans and Financing Receivable [Line Items]
Average refreshed FICO score (percent)	7.80%	7.60%
HELOC | FICO score 660-699
Accounts, Notes, Loans and Financing Receivable [Line Items]
Average refreshed FICO score (percent)	10.90%	10.90%
HELOC | FICO score 620-659
Accounts, Notes, Loans and Financing Receivable [Line Items]
Average refreshed FICO score (percent)	5.00%	5.10%
HELOC | FICO score less than 620
Accounts, Notes, Loans and Financing Receivable [Line Items]
Average refreshed FICO score (percent)	6.50%	6.50%
HELOC | Total
Accounts, Notes, Loans and Financing Receivable [Line Items]
Average refreshed FICO score (percent)	100.03812%	99.98%
R/E installment loans | FICO score 740 or greater
Accounts, Notes, Loans and Financing Receivable [Line Items]
Average refreshed FICO score (percent)	72.20%	71.30%
R/E installment loans | FICO score 720-739
Accounts, Notes, Loans and Financing Receivable [Line Items]
Average refreshed FICO score (percent)	8.30%	8.80%
R/E installment loans | FICO score 700-719
Accounts, Notes, Loans and Financing Receivable [Line Items]
Average refreshed FICO score (percent)	6.90%	7.00%
R/E installment loans | FICO score 660-699
Accounts, Notes, Loans and Financing Receivable [Line Items]
Average refreshed FICO score (percent)	7.20%	7.60%
R/E installment loans | FICO score 620-659
Accounts, Notes, Loans and Financing Receivable [Line Items]
Average refreshed FICO score (percent)	2.70%	2.80%
R/E installment loans | FICO score less than 620
Accounts, Notes, Loans and Financing Receivable [Line Items]
Average refreshed FICO score (percent)	2.70%	2.50%
R/E installment loans | Total
Accounts, Notes, Loans and Financing Receivable [Line Items]
Average refreshed FICO score (percent)	100.00%	100.00%
Permanent mortgage | FICO score 740 or greater
Accounts, Notes, Loans and Financing Receivable [Line Items]
Average refreshed FICO score (percent)	52.00%	51.80%
Permanent mortgage | FICO score 720-739
Accounts, Notes, Loans and Financing Receivable [Line Items]
Average refreshed FICO score (percent)	8.30%	7.60%
Permanent mortgage | FICO score 700-719
Accounts, Notes, Loans and Financing Receivable [Line Items]
Average refreshed FICO score (percent)	9.90%	10.60%
Permanent mortgage | FICO score 660-699
Accounts, Notes, Loans and Financing Receivable [Line Items]
Average refreshed FICO score (percent)	14.80%	14.70%
Permanent mortgage | FICO score 620-659
Accounts, Notes, Loans and Financing Receivable [Line Items]
Average refreshed FICO score (percent)	7.00%	6.50%
Permanent mortgage | FICO score less than 620
Accounts, Notes, Loans and Financing Receivable [Line Items]
Average refreshed FICO score (percent)	8.00%	8.80%
Permanent mortgage | Total
Accounts, Notes, Loans and Financing Receivable [Line Items]
Average refreshed FICO score (percent)	100.00%	100.00%

Loans - Accruing And Non-Accrui

Loans - Accruing And Non-Accruing Loans By Class (Details) - USD ($) $ in Thousands	Mar. 31, 2019		Dec. 31, 2018		Mar. 31, 2018
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans, net of unearned income	$ 27,990,048	[1]	$ 27,535,532	[1]	$ 27,249,793
Accruing
Accounts, Notes, Loans and Financing Receivable [Line Items]
Current	27,744,731		27,312,619
Total Accruing	27,808,424		27,387,783
Accruing | 30-89 Days Past Due
Accounts, Notes, Loans and Financing Receivable [Line Items]
Past due	38,577		42,703
Accruing | 90+ Days Past Due
Accounts, Notes, Loans and Financing Receivable [Line Items]
Past due	25,116		32,461
Non-Accruing
Accounts, Notes, Loans and Financing Receivable [Line Items]
Current	137,663		101,879
Total Non-Accruing	181,624		147,749
Non-Accruing | 30-89 Days Past Due
Accounts, Notes, Loans and Financing Receivable [Line Items]
Past due	7,268		11,831
Non-Accruing | 90+ Days Past Due
Accounts, Notes, Loans and Financing Receivable [Line Items]
Past due	36,693		34,039
Commercial | Commercial, financial, and industrial
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans, net of unearned income	17,176,112		16,514,328		15,828,308
Commercial | Commercial, financial, and industrial | Accruing
Accounts, Notes, Loans and Financing Receivable [Line Items]
Current	17,089,415		16,463,919
Total Accruing	17,101,116		16,474,552
Commercial | Commercial, financial, and industrial | Accruing | 30-89 Days Past Due
Accounts, Notes, Loans and Financing Receivable [Line Items]
Past due	9,951		8,858
Commercial | Commercial, financial, and industrial | Accruing | 90+ Days Past Due
Accounts, Notes, Loans and Financing Receivable [Line Items]
Past due	1,750		1,775
Commercial | Commercial, financial, and industrial | Non-Accruing
Accounts, Notes, Loans and Financing Receivable [Line Items]
Current	61,711		26,325
Total Non-Accruing	74,996		39,776
Commercial | Commercial, financial, and industrial | Non-Accruing | 30-89 Days Past Due
Accounts, Notes, Loans and Financing Receivable [Line Items]
Past due	147		5,537
Commercial | Commercial, financial, and industrial | Non-Accruing | 90+ Days Past Due
Accounts, Notes, Loans and Financing Receivable [Line Items]
Past due	13,138		7,914
Commercial | Commercial, financial, and industrial | General C&I
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans, net of unearned income	14,588,545		14,198,499
Commercial | Commercial, financial, and industrial | General C&I | Accruing
Accounts, Notes, Loans and Financing Receivable [Line Items]
Current	14,508,455		14,153,275
Total Accruing	14,516,387		14,161,611
Commercial | Commercial, financial, and industrial | General C&I | Accruing | 30-89 Days Past Due
Accounts, Notes, Loans and Financing Receivable [Line Items]
Past due	7,741		8,234
Commercial | Commercial, financial, and industrial | General C&I | Accruing | 90+ Days Past Due
Accounts, Notes, Loans and Financing Receivable [Line Items]
Past due	191		102
Commercial | Commercial, financial, and industrial | General C&I | Non-Accruing
Accounts, Notes, Loans and Financing Receivable [Line Items]
Current	61,711		26,325
Total Non-Accruing	72,158		36,888
Commercial | Commercial, financial, and industrial | General C&I | Non-Accruing | 30-89 Days Past Due
Accounts, Notes, Loans and Financing Receivable [Line Items]
Past due	147		5,537
Commercial | Commercial, financial, and industrial | General C&I | Non-Accruing | 90+ Days Past Due
Accounts, Notes, Loans and Financing Receivable [Line Items]
Past due	10,300		5,026
Commercial | Commercial, financial, and industrial | Loans to Mortgage Companies
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans, net of unearned income	2,301,340		2,023,746
Commercial | Commercial, financial, and industrial | Loans to Mortgage Companies | Accruing
Accounts, Notes, Loans and Financing Receivable [Line Items]
Current	2,301,340		2,023,746
Total Accruing	2,301,340		2,023,746
Commercial | Commercial, financial, and industrial | Loans to Mortgage Companies | Accruing | 30-89 Days Past Due
Accounts, Notes, Loans and Financing Receivable [Line Items]
Past due	0		0
Commercial | Commercial, financial, and industrial | Loans to Mortgage Companies | Accruing | 90+ Days Past Due
Accounts, Notes, Loans and Financing Receivable [Line Items]
Past due	0		0
Commercial | Commercial, financial, and industrial | Loans to Mortgage Companies | Non-Accruing
Accounts, Notes, Loans and Financing Receivable [Line Items]
Current	0		0
Total Non-Accruing	0		0
Commercial | Commercial, financial, and industrial | Loans to Mortgage Companies | Non-Accruing | 30-89 Days Past Due
Accounts, Notes, Loans and Financing Receivable [Line Items]
Past due	0		0
Commercial | Commercial, financial, and industrial | Loans to Mortgage Companies | Non-Accruing | 90+ Days Past Due
Accounts, Notes, Loans and Financing Receivable [Line Items]
Past due	0		0
Commercial | Commercial, financial, and industrial | TRUPs
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans, net of unearned income	249,402		250,353
Valuation allowance	20,200		20,200
Commercial | Commercial, financial, and industrial | TRUPs | Accruing
Accounts, Notes, Loans and Financing Receivable [Line Items]
Current	246,564		247,465
Total Accruing	246,564		247,465
Commercial | Commercial, financial, and industrial | TRUPs | Accruing | 30-89 Days Past Due
Accounts, Notes, Loans and Financing Receivable [Line Items]
Past due	0		0
Commercial | Commercial, financial, and industrial | TRUPs | Accruing | 90+ Days Past Due
Accounts, Notes, Loans and Financing Receivable [Line Items]
Past due	0		0
Commercial | Commercial, financial, and industrial | TRUPs | Non-Accruing
Accounts, Notes, Loans and Financing Receivable [Line Items]
Current	0		0
Total Non-Accruing	2,838		2,888
Commercial | Commercial, financial, and industrial | TRUPs | Non-Accruing | 30-89 Days Past Due
Accounts, Notes, Loans and Financing Receivable [Line Items]
Past due	0		0
Commercial | Commercial, financial, and industrial | TRUPs | Non-Accruing | 90+ Days Past Due
Accounts, Notes, Loans and Financing Receivable [Line Items]
Past due	2,838		2,888
Commercial | Commercial, financial, and industrial | C&I Purchase Credit Impaired Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans, net of unearned income	36,825		41,730
Commercial | Commercial, financial, and industrial | C&I Purchase Credit Impaired Loans | Accruing
Accounts, Notes, Loans and Financing Receivable [Line Items]
Current	33,056		39,433
Total Accruing	36,825		41,730
Commercial | Commercial, financial, and industrial | C&I Purchase Credit Impaired Loans | Accruing | 30-89 Days Past Due
Accounts, Notes, Loans and Financing Receivable [Line Items]
Past due	2,210		624
Commercial | Commercial, financial, and industrial | C&I Purchase Credit Impaired Loans | Accruing | 90+ Days Past Due
Accounts, Notes, Loans and Financing Receivable [Line Items]
Past due	1,559		1,673
Commercial | Commercial, financial, and industrial | C&I Purchase Credit Impaired Loans | Non-Accruing
Accounts, Notes, Loans and Financing Receivable [Line Items]
Current	0		0
Total Non-Accruing	0		0
Commercial | Commercial, financial, and industrial | C&I Purchase Credit Impaired Loans | Non-Accruing | 30-89 Days Past Due
Accounts, Notes, Loans and Financing Receivable [Line Items]
Past due	0		0
Commercial | Commercial, financial, and industrial | C&I Purchase Credit Impaired Loans | Non-Accruing | 90+ Days Past Due
Accounts, Notes, Loans and Financing Receivable [Line Items]
Past due	0		0
Commercial | Commercial real estate
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans, net of unearned income	3,946,943		4,030,870		4,234,435
Commercial | Commercial real estate | Accruing
Accounts, Notes, Loans and Financing Receivable [Line Items]
Current	3,942,875		4,025,398
Total Accruing	3,944,294		4,027,879
Commercial | Commercial real estate | Accruing | 30-89 Days Past Due
Accounts, Notes, Loans and Financing Receivable [Line Items]
Past due	1,348		729
Commercial | Commercial real estate | Accruing | 90+ Days Past Due
Accounts, Notes, Loans and Financing Receivable [Line Items]
Past due	71		1,752
Commercial | Commercial real estate | Non-Accruing
Accounts, Notes, Loans and Financing Receivable [Line Items]
Current	0		62
Total Non-Accruing	2,649		2,991
Commercial | Commercial real estate | Non-Accruing | 30-89 Days Past Due
Accounts, Notes, Loans and Financing Receivable [Line Items]
Past due	51		0
Commercial | Commercial real estate | Non-Accruing | 90+ Days Past Due
Accounts, Notes, Loans and Financing Receivable [Line Items]
Past due	2,598		2,929
Commercial | Commercial real estate | Income CRE
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans, net of unearned income	3,788,062		3,879,814
Commercial | Commercial real estate | Income CRE | Accruing
Accounts, Notes, Loans and Financing Receivable [Line Items]
Current	3,785,127		3,876,229
Total Accruing	3,785,419		3,876,855
Commercial | Commercial real estate | Income CRE | Accruing | 30-89 Days Past Due
Accounts, Notes, Loans and Financing Receivable [Line Items]
Past due	292		626
Commercial | Commercial real estate | Income CRE | Accruing | 90+ Days Past Due
Accounts, Notes, Loans and Financing Receivable [Line Items]
Past due	0		0
Commercial | Commercial real estate | Income CRE | Non-Accruing
Accounts, Notes, Loans and Financing Receivable [Line Items]
Current	0		30
Total Non-Accruing	2,643		2,959
Commercial | Commercial real estate | Income CRE | Non-Accruing | 30-89 Days Past Due
Accounts, Notes, Loans and Financing Receivable [Line Items]
Past due	45		0
Commercial | Commercial real estate | Income CRE | Non-Accruing | 90+ Days Past Due
Accounts, Notes, Loans and Financing Receivable [Line Items]
Past due	2,598		2,929
Commercial | Commercial real estate | Residential C R E
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans, net of unearned income	150,544		135,893
Commercial | Commercial real estate | Residential C R E | Accruing
Accounts, Notes, Loans and Financing Receivable [Line Items]
Current	150,300		135,861
Total Accruing	150,538		135,861
Commercial | Commercial real estate | Residential C R E | Accruing | 30-89 Days Past Due
Accounts, Notes, Loans and Financing Receivable [Line Items]
Past due	238		0
Commercial | Commercial real estate | Residential C R E | Accruing | 90+ Days Past Due
Accounts, Notes, Loans and Financing Receivable [Line Items]
Past due	0		0
Commercial | Commercial real estate | Residential C R E | Non-Accruing
Accounts, Notes, Loans and Financing Receivable [Line Items]
Current	0		32
Total Non-Accruing	6		32
Commercial | Commercial real estate | Residential C R E | Non-Accruing | 30-89 Days Past Due
Accounts, Notes, Loans and Financing Receivable [Line Items]
Past due	6		0
Commercial | Commercial real estate | Residential C R E | Non-Accruing | 90+ Days Past Due
Accounts, Notes, Loans and Financing Receivable [Line Items]
Past due	0		0
Commercial | Commercial real estate | CRE Purchase Credit Impaired Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans, net of unearned income	8,337		15,163
Commercial | Commercial real estate | CRE Purchase Credit Impaired Loans | Accruing
Accounts, Notes, Loans and Financing Receivable [Line Items]
Current	7,448		13,308
Total Accruing	8,337		15,163
Commercial | Commercial real estate | CRE Purchase Credit Impaired Loans | Accruing | 30-89 Days Past Due
Accounts, Notes, Loans and Financing Receivable [Line Items]
Past due	818		103
Commercial | Commercial real estate | CRE Purchase Credit Impaired Loans | Accruing | 90+ Days Past Due
Accounts, Notes, Loans and Financing Receivable [Line Items]
Past due	71		1,752
Commercial | Commercial real estate | CRE Purchase Credit Impaired Loans | Non-Accruing
Accounts, Notes, Loans and Financing Receivable [Line Items]
Current	0		0
Total Non-Accruing	0		0
Commercial | Commercial real estate | CRE Purchase Credit Impaired Loans | Non-Accruing | 30-89 Days Past Due
Accounts, Notes, Loans and Financing Receivable [Line Items]
Past due	0		0
Commercial | Commercial real estate | CRE Purchase Credit Impaired Loans | Non-Accruing | 90+ Days Past Due
Accounts, Notes, Loans and Financing Receivable [Line Items]
Past due	0		0
Consumer | Consumer Real Estate
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans, net of unearned income	6,151,503		6,249,516		6,355,519
Consumer | Consumer Real Estate | Accruing
Accounts, Notes, Loans and Financing Receivable [Line Items]
Current	6,028,466		6,120,405
Total Accruing	6,068,907		6,166,868
Consumer | Consumer Real Estate | Accruing | 30-89 Days Past Due
Accounts, Notes, Loans and Financing Receivable [Line Items]
Past due	21,400		24,217
Consumer | Consumer Real Estate | Accruing | 90+ Days Past Due
Accounts, Notes, Loans and Financing Receivable [Line Items]
Past due	19,041		22,246
Consumer | Consumer Real Estate | Non-Accruing
Accounts, Notes, Loans and Financing Receivable [Line Items]
Current	63,923		64,155
Total Non-Accruing	82,596		82,648
Consumer | Consumer Real Estate | Non-Accruing | 30-89 Days Past Due
Accounts, Notes, Loans and Financing Receivable [Line Items]
Past due	6,908		5,238
Consumer | Consumer Real Estate | Non-Accruing | 90+ Days Past Due
Accounts, Notes, Loans and Financing Receivable [Line Items]
Past due	11,765		13,255
Consumer | Consumer Real Estate | Home Equity Line of Credit
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans, net of unearned income	1,458,908		1,526,537
Consumer | Consumer Real Estate | Home Equity Line of Credit | Accruing
Accounts, Notes, Loans and Financing Receivable [Line Items]
Current	1,380,487		1,443,651
Total Accruing	1,397,543		1,465,433
Consumer | Consumer Real Estate | Home Equity Line of Credit | Accruing | 30-89 Days Past Due
Accounts, Notes, Loans and Financing Receivable [Line Items]
Past due	9,735		11,653
Consumer | Consumer Real Estate | Home Equity Line of Credit | Accruing | 90+ Days Past Due
Accounts, Notes, Loans and Financing Receivable [Line Items]
Past due	7,321		10,129
Consumer | Consumer Real Estate | Home Equity Line of Credit | Non-Accruing
Accounts, Notes, Loans and Financing Receivable [Line Items]
Current	48,772		49,009
Total Non-Accruing	61,365		61,104
Consumer | Consumer Real Estate | Home Equity Line of Credit | Non-Accruing | 30-89 Days Past Due
Accounts, Notes, Loans and Financing Receivable [Line Items]
Past due	4,223		3,314
Consumer | Consumer Real Estate | Home Equity Line of Credit | Non-Accruing | 90+ Days Past Due
Accounts, Notes, Loans and Financing Receivable [Line Items]
Past due	8,370		8,781
Consumer | Consumer Real Estate | R/E installment loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans, net of unearned income	4,662,749		4,691,169
Consumer | Consumer Real Estate | R/E installment loans | Accruing
Accounts, Notes, Loans and Financing Receivable [Line Items]
Current	4,623,499		4,652,658
Total Accruing	4,641,518		4,669,625
Consumer | Consumer Real Estate | R/E installment loans | Accruing | 30-89 Days Past Due
Accounts, Notes, Loans and Financing Receivable [Line Items]
Past due	10,037		10,470
Consumer | Consumer Real Estate | R/E installment loans | Accruing | 90+ Days Past Due
Accounts, Notes, Loans and Financing Receivable [Line Items]
Past due	7,982		6,497
Consumer | Consumer Real Estate | R/E installment loans | Non-Accruing
Accounts, Notes, Loans and Financing Receivable [Line Items]
Current	15,151		15,146
Total Non-Accruing	21,231		21,544
Consumer | Consumer Real Estate | R/E installment loans | Non-Accruing | 30-89 Days Past Due
Accounts, Notes, Loans and Financing Receivable [Line Items]
Past due	2,685		1,924
Consumer | Consumer Real Estate | R/E installment loans | Non-Accruing | 90+ Days Past Due
Accounts, Notes, Loans and Financing Receivable [Line Items]
Past due	3,395		4,474
Consumer | Consumer Real Estate | RE Installment Purchase Credit Impaired Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans, net of unearned income	29,846		31,810
Consumer | Consumer Real Estate | RE Installment Purchase Credit Impaired Loans | Accruing
Accounts, Notes, Loans and Financing Receivable [Line Items]
Current	24,480		24,096
Total Accruing	29,846		31,810
Consumer | Consumer Real Estate | RE Installment Purchase Credit Impaired Loans | Accruing | 30-89 Days Past Due
Accounts, Notes, Loans and Financing Receivable [Line Items]
Past due	1,628		2,094
Consumer | Consumer Real Estate | RE Installment Purchase Credit Impaired Loans | Accruing | 90+ Days Past Due
Accounts, Notes, Loans and Financing Receivable [Line Items]
Past due	3,738		5,620
Consumer | Consumer Real Estate | RE Installment Purchase Credit Impaired Loans | Non-Accruing
Accounts, Notes, Loans and Financing Receivable [Line Items]
Current	0		0
Total Non-Accruing	0		0
Consumer | Consumer Real Estate | RE Installment Purchase Credit Impaired Loans | Non-Accruing | 30-89 Days Past Due
Accounts, Notes, Loans and Financing Receivable [Line Items]
Past due	0		0
Consumer | Consumer Real Estate | RE Installment Purchase Credit Impaired Loans | Non-Accruing | 90+ Days Past Due
Accounts, Notes, Loans and Financing Receivable [Line Items]
Past due	0		0
Consumer | Permanent Mortgage
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans, net of unearned income	209,260		222,448		270,721
Consumer | Permanent Mortgage | Accruing
Accounts, Notes, Loans and Financing Receivable [Line Items]
Current	184,237		193,591
Total Accruing	188,310		200,738
Consumer | Permanent Mortgage | Accruing | 30-89 Days Past Due
Accounts, Notes, Loans and Financing Receivable [Line Items]
Past due	1,494		2,585
Consumer | Permanent Mortgage | Accruing | 90+ Days Past Due
Accounts, Notes, Loans and Financing Receivable [Line Items]
Past due	2,579		4,562
Consumer | Permanent Mortgage | Non-Accruing
Accounts, Notes, Loans and Financing Receivable [Line Items]
Current	11,874		11,227
Total Non-Accruing	20,950		21,710
Consumer | Permanent Mortgage | Non-Accruing | 30-89 Days Past Due
Accounts, Notes, Loans and Financing Receivable [Line Items]
Past due	95		996
Consumer | Permanent Mortgage | Non-Accruing | 90+ Days Past Due
Accounts, Notes, Loans and Financing Receivable [Line Items]
Past due	8,981		9,487
Consumer | Credit Card and Other
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans, net of unearned income	506,230		518,370		$ 560,810
Consumer | Credit Card and Other | Accruing
Accounts, Notes, Loans and Financing Receivable [Line Items]
Current	499,738		509,306
Total Accruing	505,797		517,746
Consumer | Credit Card and Other | Accruing | 30-89 Days Past Due
Accounts, Notes, Loans and Financing Receivable [Line Items]
Past due	4,384		6,314
Consumer | Credit Card and Other | Accruing | 90+ Days Past Due
Accounts, Notes, Loans and Financing Receivable [Line Items]
Past due	1,675		2,126
Consumer | Credit Card and Other | Non-Accruing
Accounts, Notes, Loans and Financing Receivable [Line Items]
Current	155		110
Total Non-Accruing	433		624
Consumer | Credit Card and Other | Non-Accruing | 30-89 Days Past Due
Accounts, Notes, Loans and Financing Receivable [Line Items]
Past due	67		60
Consumer | Credit Card and Other | Non-Accruing | 90+ Days Past Due
Accounts, Notes, Loans and Financing Receivable [Line Items]
Past due	211		454
Consumer | Credit Card and Other | Credit Card
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans, net of unearned income	195,715		191,345
Consumer | Credit Card and Other | Credit Card | Accruing
Accounts, Notes, Loans and Financing Receivable [Line Items]
Current	193,754		188,009
Total Accruing	195,715		191,345
Consumer | Credit Card and Other | Credit Card | Accruing | 30-89 Days Past Due
Accounts, Notes, Loans and Financing Receivable [Line Items]
Past due	992		2,133
Consumer | Credit Card and Other | Credit Card | Accruing | 90+ Days Past Due
Accounts, Notes, Loans and Financing Receivable [Line Items]
Past due	969		1,203
Consumer | Credit Card and Other | Credit Card | Non-Accruing
Accounts, Notes, Loans and Financing Receivable [Line Items]
Current	0		0
Total Non-Accruing	0		0
Consumer | Credit Card and Other | Credit Card | Non-Accruing | 30-89 Days Past Due
Accounts, Notes, Loans and Financing Receivable [Line Items]
Past due	0		0
Consumer | Credit Card and Other | Credit Card | Non-Accruing | 90+ Days Past Due
Accounts, Notes, Loans and Financing Receivable [Line Items]
Past due	0		0
Consumer | Credit Card and Other | Other Consumer Loans Class
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans, net of unearned income	309,240		325,271
Consumer | Credit Card and Other | Other Consumer Loans Class | Accruing
Accounts, Notes, Loans and Financing Receivable [Line Items]
Current	305,267		320,551
Total Accruing	308,807		324,647
Consumer | Credit Card and Other | Other Consumer Loans Class | Accruing | 30-89 Days Past Due
Accounts, Notes, Loans and Financing Receivable [Line Items]
Past due	3,067		3,570
Consumer | Credit Card and Other | Other Consumer Loans Class | Accruing | 90+ Days Past Due
Accounts, Notes, Loans and Financing Receivable [Line Items]
Past due	473		526
Consumer | Credit Card and Other | Other Consumer Loans Class | Non-Accruing
Accounts, Notes, Loans and Financing Receivable [Line Items]
Current	155		110
Total Non-Accruing	433		624
Consumer | Credit Card and Other | Other Consumer Loans Class | Non-Accruing | 30-89 Days Past Due
Accounts, Notes, Loans and Financing Receivable [Line Items]
Past due	67		60
Consumer | Credit Card and Other | Other Consumer Loans Class | Non-Accruing | 90+ Days Past Due
Accounts, Notes, Loans and Financing Receivable [Line Items]
Past due	211		454
Consumer | Credit Card and Other | Other Purchased Credit Impaired Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans, net of unearned income	1,275		1,754
Consumer | Credit Card and Other | Other Purchased Credit Impaired Loans | Accruing
Accounts, Notes, Loans and Financing Receivable [Line Items]
Current	717		746
Total Accruing	1,275		1,754
Consumer | Credit Card and Other | Other Purchased Credit Impaired Loans | Accruing | 30-89 Days Past Due
Accounts, Notes, Loans and Financing Receivable [Line Items]
Past due	325		611
Consumer | Credit Card and Other | Other Purchased Credit Impaired Loans | Accruing | 90+ Days Past Due
Accounts, Notes, Loans and Financing Receivable [Line Items]
Past due	233		397
Consumer | Credit Card and Other | Other Purchased Credit Impaired Loans | Non-Accruing
Accounts, Notes, Loans and Financing Receivable [Line Items]
Current	0		0
Total Non-Accruing	0		0
Consumer | Credit Card and Other | Other Purchased Credit Impaired Loans | Non-Accruing | 30-89 Days Past Due
Accounts, Notes, Loans and Financing Receivable [Line Items]
Past due	0		0
Consumer | Credit Card and Other | Other Purchased Credit Impaired Loans | Non-Accruing | 90+ Days Past Due
Accounts, Notes, Loans and Financing Receivable [Line Items]
Past due	$ 0		$ 0
[1]	March 31, 2019 and December 31, 2018 include $24.1 million and $28.6 million, respectively, of held-to-maturity consumer mortgage loans secured by residential real estate in process of foreclosure.

Loans - Troubled Debt Restructu

Loans - Troubled Debt Restructuring Narrative (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2019	Dec. 31, 2018
Accounts, Notes, Loans and Financing Receivable [Line Items]
Troubled debt restructurings loans	$ 241.6	$ 228.2
Allowance For TDRs To Recorded Investment Of TDRs
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loan loss reserves	$ 24.4	$ 27.7
Ratio of the allowance for loan losses to loans	10.00%	12.00%
Loans Held For Sale, Residential Real Estate
Accounts, Notes, Loans and Financing Receivable [Line Items]
Troubled debt restructurings loans	$ 55.4	$ 57.8
Consumer | Consumer Real Estate
Accounts, Notes, Loans and Financing Receivable [Line Items]
TDRS Maturities	30 years
Consumer | Permanent Mortgage
Accounts, Notes, Loans and Financing Receivable [Line Items]
TDR, reduction of interest rate by increment, basis points	0.25%
Modified interest rate increase	1.00%
TDRS Maturities	40 years
Minimum | Consumer | Permanent Mortgage
Accounts, Notes, Loans and Financing Receivable [Line Items]
Modified interest rate	2.00%
Modified interest rate time period	5 years
Minimum | Commercial
Accounts, Notes, Loans and Financing Receivable [Line Items]
Forbearance agreements time period	6 months
Maximum | Consumer | Permanent Mortgage
Accounts, Notes, Loans and Financing Receivable [Line Items]
Modified interest rate time period	5 years
Maximum | Commercial
Accounts, Notes, Loans and Financing Receivable [Line Items]
Forbearance agreements time period	12 months
Heloc And Real Estate Installment Classes | Consumer | Consumer Real Estate
Accounts, Notes, Loans and Financing Receivable [Line Items]
TDR, reduction of interest rate by increment, basis points	0.25%
Modified interest rate increase	2.00%
Heloc And Real Estate Installment Classes | Minimum | Consumer | Consumer Real Estate
Accounts, Notes, Loans and Financing Receivable [Line Items]
Modified interest rate	1.00%
Modified interest rate time period	5 years
Heloc And Real Estate Installment Classes | Maximum | Consumer | Consumer Real Estate
Accounts, Notes, Loans and Financing Receivable [Line Items]
Modified interest rate time period	5 years
Credit Card | Consumer | Credit Card and Other
Accounts, Notes, Loans and Financing Receivable [Line Items]
Credit card workout program, granted rate reduction	0.00%
Credit Card | Minimum | Consumer | Credit Card and Other
Accounts, Notes, Loans and Financing Receivable [Line Items]
Payment reductions, time period	6 months
Credit Card | Maximum | Consumer | Credit Card and Other
Accounts, Notes, Loans and Financing Receivable [Line Items]
Payment reductions, time period	1 year
Credit card workout program, term extension	5 years

Loans - Schedule Of Troubled De

Loans - Schedule Of Troubled Debt Restructurings Occurring During The Year (Details) $ in Thousands	3 Months Ended
	Mar. 31, 2019USD ($)loan	Mar. 31, 2018USD ($)loan
Financing Receivable, Modifications [Line Items]
Number | loan	83	82
Pre-Modification Outstanding Recorded Investment	$ 23,498	$ 5,360
Post-Modification Outstanding Recorded Investment	$ 23,388	$ 5,029
Commercial | C&I
Financing Receivable, Modifications [Line Items]
Number | loan	2	5
Pre-Modification Outstanding Recorded Investment	$ 13,895	$ 1,504
Post-Modification Outstanding Recorded Investment	$ 13,820	$ 1,214
Consumer | Consumer Real Estate
Financing Receivable, Modifications [Line Items]
Number | loan	63	35
Pre-Modification Outstanding Recorded Investment	$ 8,081	$ 3,371
Post-Modification Outstanding Recorded Investment	$ 8,018	$ 3,345
Consumer | Permanent Mortgage
Financing Receivable, Modifications [Line Items]
Number | loan	3	1
Pre-Modification Outstanding Recorded Investment	$ 1,448	$ 275
Post-Modification Outstanding Recorded Investment	$ 1,479	$ 273
Consumer | Credit Card and Other
Financing Receivable, Modifications [Line Items]
Number | loan	15	41
Pre-Modification Outstanding Recorded Investment	$ 74	$ 210
Post-Modification Outstanding Recorded Investment	$ 71	$ 197
General C&I | Commercial | C&I
Financing Receivable, Modifications [Line Items]
Number | loan	2	5
Pre-Modification Outstanding Recorded Investment	$ 13,895	$ 1,504
Post-Modification Outstanding Recorded Investment	$ 13,820	$ 1,214
Home Equity Line of Credit | Consumer | Consumer Real Estate
Financing Receivable, Modifications [Line Items]
Number | loan	19	30
Pre-Modification Outstanding Recorded Investment	$ 2,104	$ 2,760
Post-Modification Outstanding Recorded Investment	$ 2,084	$ 2,733
R/E installment loans | Consumer | Consumer Real Estate
Financing Receivable, Modifications [Line Items]
Number | loan	44	5
Pre-Modification Outstanding Recorded Investment	$ 5,977	$ 611
Post-Modification Outstanding Recorded Investment	$ 5,934	$ 612

Loans - Schedule Of Troubled _2

Loans - Schedule Of Troubled Debt Restructurings Within The Previous 12 Months (Details) $ in Thousands	3 Months Ended
	Mar. 31, 2019USD ($)loan	Mar. 31, 2018USD ($)loan
Financing Receivable, Modifications [Line Items]
Number | loan	9	17
Recorded Investment | $	$ 51	$ 262
Consumer | Consumer Real Estate
Financing Receivable, Modifications [Line Items]
Number | loan	1	2
Recorded Investment | $	$ 33	$ 69
Consumer | Permanent mortgage
Financing Receivable, Modifications [Line Items]
Number | loan	0	1
Recorded Investment | $	$ 0	$ 112
Consumer | Credit Card and Other
Financing Receivable, Modifications [Line Items]
Number | loan	8	14
Recorded Investment | $	$ 18	$ 81
HELOC | Consumer | Consumer Real Estate
Financing Receivable, Modifications [Line Items]
Number | loan	1	2
Recorded Investment | $	$ 33	$ 69

Allowance for Loan Losses (Deta

Allowance for Loan Losses (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2019		Mar. 31, 2018	Dec. 31, 2018
Allowance for Loan and Lease Losses [Roll Forward]
Beginning Balance	$ 180,424		$ 189,555
Charge-offs	(10,527)		(8,483)
Recoveries	6,014		7,122
Provision/(provision credit) for loan losses	9,000		(1,000)
Ending Balance	184,911		187,194
Allowance - individually evaluated for impairment	27,806		39,274
Allowance - collectively evaluated for impairment	153,692		145,365
Allowance - purchased credit-impaired loans	3,413		2,555	$ 4,000
Individually evaluated for impairment	275,148		249,602
Collectively evaluated for impairment	27,638,617		26,847,384
Purchased credit-impaired loans	76,283		152,807
Total loans, net of unearned income	27,990,048	[1]	27,249,793	27,535,532	[1]
Commercial
Allowance for Loan and Lease Losses [Roll Forward]
Beginning Balance	130,258
Ending Balance	138,095
Allowance - individually evaluated for impairment	3,437			1,074
Allowance - collectively evaluated for impairment	132,517			126,361
Allowance - purchased credit-impaired loans	2,141			2,823
Individually evaluated for impairment	85,132			50,558
Collectively evaluated for impairment	20,992,761			20,437,747
Purchased credit-impaired loans	45,162			56,893
Commercial | C&I
Allowance for Loan and Lease Losses [Roll Forward]
Beginning Balance	98,947		98,211
Charge-offs	(3,101)		(2,075)
Recoveries	829		1,519
Provision/(provision credit) for loan losses	7,038		2,583
Ending Balance	103,713		100,238
Allowance - individually evaluated for impairment	3,437		4,555
Allowance - collectively evaluated for impairment	98,135		93,603
Allowance - purchased credit-impaired loans	2,141		2,080
Individually evaluated for impairment	83,253		40,758
Collectively evaluated for impairment	17,056,034		15,705,895
Purchased credit-impaired loans	36,825		81,655
Total loans, net of unearned income	17,176,112		15,828,308	16,514,328
Commercial | Commercial Real Estate
Allowance for Loan and Lease Losses [Roll Forward]
Beginning Balance	31,311		28,427
Charge-offs	(434)		(44)
Recoveries	57		6
Provision/(provision credit) for loan losses	3,448		668
Ending Balance	34,382		29,057
Allowance - individually evaluated for impairment	0		0
Allowance - collectively evaluated for impairment	34,382		28,869
Allowance - purchased credit-impaired loans	0		188
Individually evaluated for impairment	1,879		2,077
Collectively evaluated for impairment	3,936,727		4,201,220
Purchased credit-impaired loans	8,337		31,138
Total loans, net of unearned income	3,946,943		4,234,435	4,030,870
Consumer | Consumer Real Estate
Allowance for Loan and Lease Losses [Roll Forward]
Beginning Balance	26,439		39,823
Charge-offs	(2,800)		(1,911)
Recoveries	3,453		4,383
Provision/(provision credit) for loan losses	(3,019)		(7,094)
Ending Balance	24,073		35,201
Allowance - individually evaluated for impairment	14,842		23,049
Allowance - collectively evaluated for impairment	8,108		11,877
Allowance - purchased credit-impaired loans	1,123		275
Individually evaluated for impairment	119,953		124,975
Collectively evaluated for impairment	6,001,704		6,194,449
Purchased credit-impaired loans	29,846		36,095
Total loans, net of unearned income	6,151,503		6,355,519	6,249,516
Consumer | Permanent Mortgage
Allowance for Loan and Lease Losses [Roll Forward]
Beginning Balance	11,000		13,113
Charge-offs	(4)		(160)
Recoveries	588		65
Provision/(provision credit) for loan losses	(1,503)		(34)
Ending Balance	10,081		12,984
Allowance - individually evaluated for impairment	9,081		11,311
Allowance - collectively evaluated for impairment	1,000		1,673
Allowance - purchased credit-impaired loans	0		0
Individually evaluated for impairment	69,379		81,090
Collectively evaluated for impairment	139,881		189,631
Purchased credit-impaired loans	0		0
Total loans, net of unearned income	209,260		270,721	222,448
Consumer | Credit Card and Other
Allowance for Loan and Lease Losses [Roll Forward]
Beginning Balance	12,727		9,981
Charge-offs	(4,188)		(4,293)
Recoveries	1,087		1,149
Provision/(provision credit) for loan losses	3,036		2,877
Ending Balance	12,662		9,714
Allowance - individually evaluated for impairment	446		359
Allowance - collectively evaluated for impairment	12,067		9,343
Allowance - purchased credit-impaired loans	149		12
Individually evaluated for impairment	684		702
Collectively evaluated for impairment	504,271		556,189
Purchased credit-impaired loans	1,275		3,919
Total loans, net of unearned income	$ 506,230		$ 560,810	$ 518,370
[1]	March 31, 2019 and December 31, 2018 include $24.1 million and $28.6 million, respectively, of held-to-maturity consumer mortgage loans secured by residential real estate in process of foreclosure.

Intangible Assets - Summary Of

Intangible Assets - Summary Of Intangible Assets and Accumulated Amortization Included In The Consolidated Statements of Condition (Details) - USD ($) $ in Thousands	Mar. 31, 2019	Dec. 31, 2018
Intangible Assets [Line Items]
Gross Carrying Amount	$ 240,637	$ 240,637
Accumulated Amortization	(91,819)	(85,603)
Net Carrying Value	148,818	155,034
Core deposit intangibles
Intangible Assets [Line Items]
Gross Carrying Amount	157,150	157,150
Accumulated Amortization	(32,955)	(28,150)
Net Carrying Value	124,195	129,000
Customer relationships
Intangible Assets [Line Items]
Gross Carrying Amount	77,865	77,865
Accumulated Amortization	(56,744)	(55,597)
Net Carrying Value	21,121	22,268
Other
Intangible Assets [Line Items]
Gross Carrying Amount	5,622	5,622
Accumulated Amortization	(2,120)	(1,856)
Net Carrying Value	3,502	3,766
State banking licenses
Intangible Assets [Line Items]
Indefinite-lived intangible assets, excluding goodwill	$ 300	$ 300

Intangible Assets - Narrative (

Intangible Assets - Narrative (Details) - USD ($)	3 Months Ended
	Mar. 31, 2019	Mar. 31, 2018	Dec. 31, 2018	Dec. 31, 2017
Goodwill and Intangible Assets Disclosure [Abstract]
Amortization expense	$ 6,200,000	$ 6,500,000
Goodwill [Line Items]
Goodwill	1,432,787,000	$ 1,398,501,000	$ 1,432,787,000	$ 1,386,853,000
Non-Strategic
Goodwill [Line Items]
Gross goodwill	200,000,000		200,000,000
Accumulated impairments	114,100,000		114,100,000
Accumulated divestiture related write-offs	85,900,000		85,900,000
Goodwill	$ 0		$ 0

Intangible Assets - Schedule Of

Intangible Assets - Schedule Of Estimated Aggregate Amortization Expense for Intangible Assets (Details) $ in Thousands	Mar. 31, 2019USD ($)
Goodwill and Intangible Assets Disclosure [Abstract]
Remainder of 2019	$ 18,625
2020	21,159
2021	19,547
2022	17,412
2023	16,117
2024	$ 14,679

Intangible Assets - Summary O_2

Intangible Assets - Summary Of Gross Goodwill And Accumulated Impairment Losses And Write-Offs Detailed By Reportable Segments (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2019	Mar. 31, 2018
Goodwill [Line Items]
Goodwill, Beginning balance	$ 1,432,787	$ 1,386,853
Additions	0	11,648
Goodwill, Ending balance	1,432,787	1,398,501
Regional Banking
Goodwill [Line Items]
Goodwill, Beginning balance	1,289,819	1,243,885
Additions	0	11,648
Goodwill, Ending balance	1,289,819	1,255,533
Fixed Income
Goodwill [Line Items]
Goodwill, Beginning balance	142,968	142,968
Additions	0	0
Goodwill, Ending balance	$ 142,968	$ 142,968

Leases - Supplemental Balance S

Leases - Supplemental Balance Sheet Information (Details) $ in Thousands	Mar. 31, 2019USD ($)
Leases [Abstract]
Operating lease right-of use assets	$ 179,028
Finance lease right-of use assets	682
Total Lease Right-of Use Assets	179,710
Operating lease liabilities	198,091
Finance lease liabilities	1,344
Total Lease Liabilities	$ 199,435

Leases - Weighted Average Remai

Leases - Weighted Average Remaining Lease Terms and Discount Rate (Details)	Mar. 31, 2019
Leases [Abstract]
Weighed average remaining lease terms - operating leases	12 years 4 months 17 days
Weighed average remaining lease terms - finance leases	7 years 2 months 3 days
Weighted average discount rate - operating leases	3.48%
Weighted average discount rate - finance leases	9.96%

Leases - Lease Expense and Othe

Leases - Lease Expense and Other Information (Details) $ in Thousands	3 Months Ended
	Mar. 31, 2019USD ($)
Leases [Abstract]
Operating lease cost	$ 6,183
Finance lease cost:
Amortization of right-of-use assets	24
Interest on lease liabilities	33
Short-term lease cost	45
Sublease income	(95)
Total lease cost	6,190
(Gain)/loss on right-of-use asset impairment-Operating leases	817
Operating cash flows from operating leases	5,302
Operating cash flows from finance leases	33
Financing cash flows from finance leases	31
Right-of-use assets obtained in exchange for lease obligations - operating leases	2,442
Right-of-use assets obtained in exchange for lease obligations - finance leases	$ 0

Leases - Maturity of Lease Liab

Leases - Maturity of Lease Liabilities (Details) $ in Thousands	Mar. 31, 2019USD ($)
Leases [Abstract]
2019	$ 18,489
2020	23,911
2021	21,630
2022	20,535
2023	19,627
2024 and after	143,048
Total future minimum lease payments	247,240
Less lease liability interest	(47,805)
Present value of net future minimum lease payments	$ 199,435

Leases - Maturity of Leases Pri

Leases - Maturity of Leases Prior to Adoption of ASC 842 (Details) $ in Thousands	Dec. 31, 2018USD ($)
Leases [Abstract]
2019	$ 27,524
2020	24,722
2021	20,954
2022	16,518
2023	13,174
2024 and after	42,370
Total minimum lease payments	$ 145,262

Leases - Narrative (Details)

Leases - Narrative (Details) $ in Millions	Mar. 31, 2019USD ($)
Leases [Abstract]
Undiscounted amount of leases that have not yet commenced	$ 22.1

Other Income And Other Expens_2

Other Income And Other Expense (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2019	Mar. 31, 2018
All other income and commissions:
Deferred compensation	$ 5,474	$ 451
Other service charges	3,869	4,123
ATM and interchange fees	3,241	3,267
Dividend income	2,313	2,249
Mortgage banking	1,886	2,546
Letter of credit fees	1,368	1,249
Electronic banking fees	1,271	1,204
Insurance commissions	624	757
Gain/(loss) on extinguishment of debt	(1)	0
Other	5,523	7,397
Total	25,568	23,243
All other expense:
Travel and entertainment	2,712	2,983
Other insurance and taxes	2,694	2,665
Supplies	1,804	1,836
Customer relations	1,599	1,063
Employee training and dues	1,457	1,779
Miscellaneous loan costs	1,027	1,142
Tax credit investments	675	1,137
Non-service components of net periodic pension and post-retirement cost	432	504
Litigation and regulatory matters	13	2,134
OREO	(366)	108
Other	7,739	19,981
Total	$ 19,786	$ 35,332

Components of Other Comprehen_3

Components of Other Comprehensive Income/(Loss) - Schedule of Changes in AOCI (Details) - USD ($) $ in Thousands		3 Months Ended
		Mar. 31, 2019		Mar. 31, 2018		Jan. 01, 2019		Jan. 01, 2018		Dec. 31, 2017
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Balance, beginning of period		$ 4,785,380		$ 4,580,488
Balance, adjusted										$ 4,580,488
Beginning balance, as adjusted						$ 4,784,369		$ 4,580,555
Net unrealized gains/(losses)		52,551		(68,142)
Amounts reclassified from AOCI		2,914		1,093
Other comprehensive income/(loss)		55,465		(67,049)
Balance, end of period		4,846,521		4,572,528
Securities AFS
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Balance, beginning of period		(75,736)
Balance, adjusted										(26,834)
Beginning balance, as adjusted										(26,839)
Net unrealized gains/(losses)		48,615		(59,504)
Amounts reclassified from AOCI		0		(39)
Other comprehensive income/(loss)		48,615		(59,543)
Balance, end of period		(27,121)		(86,382)
Cash Flow Hedges
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Balance, beginning of period		(12,112)
Balance, adjusted										(7,764)
Beginning balance, as adjusted										(7,970)
Net unrealized gains/(losses)		3,936		(8,638)
Amounts reclassified from AOCI		1,451		(155)
Other comprehensive income/(loss)		5,387		(8,793)
Balance, end of period		(6,725)		(16,763)
Pension and Post-retirement Plans
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Balance, beginning of period		(288,768)
Balance, adjusted										(288,227)
Beginning balance, as adjusted										(288,227)
Net unrealized gains/(losses)		0		0
Amounts reclassified from AOCI		1,463		1,287
Other comprehensive income/(loss)		1,463		1,287
Balance, end of period		(287,305)		(286,940)
Total
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Balance, beginning of period		(376,616)	[1]	(265,279)	[2]
Balance, adjusted	[2]									(322,825)
Beginning balance, as adjusted						$ (376,616)	[1]	(323,036)	[2]	(323,036)
Other comprehensive income/(loss)		55,465	[1]	(67,049)	[2]
Balance, end of period		$ (321,151)	[1]	$ (390,085)	[2]
Accounting Standards Update 2016-01 and 2017-12
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Adjustment to reflect adoption of ASU 2016-01 and ASU 2017-12								67
Accounting Standards Update 2016-01 and 2017-12 | Securities AFS
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Adjustment to reflect adoption of ASU 2016-01 and ASU 2017-12										(5)
Accounting Standards Update 2016-01 and 2017-12 | Cash Flow Hedges
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Adjustment to reflect adoption of ASU 2016-01 and ASU 2017-12										(206)
Accounting Standards Update 2016-01 and 2017-12 | Pension and Post-retirement Plans
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Adjustment to reflect adoption of ASU 2016-01 and ASU 2017-12										0
Accounting Standards Update 2016-01 and 2017-12 | Total
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Adjustment to reflect adoption of ASU 2016-01 and ASU 2017-12								$ (211)	[2]	$ (211)
[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.
[2]	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.

Components of Other Comprehen_4

Components of Other Comprehensive Income/(Loss) - Schedule of Reclassification from AOCI (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2019	Mar. 31, 2018
Accumulated Other Comprehensive Income (Loss) [Line Items]
Debt securities gains/(losses), net	$ 0	$ 52
Provision/(benefit) for income taxes	27,058	29,931
Amounts reclassified from AOCI	2,914	1,093
Interest and fees on loans	331,938	299,493
All other expense (Note 8)	19,786	35,332
Securities AFS
Accumulated Other Comprehensive Income (Loss) [Line Items]
Amounts reclassified from AOCI	0	(39)
Cash Flow Hedges
Accumulated Other Comprehensive Income (Loss) [Line Items]
Amounts reclassified from AOCI	1,451	(155)
Pension and Post-retirement Plans
Accumulated Other Comprehensive Income (Loss) [Line Items]
Amounts reclassified from AOCI	1,463	1,287
Reclassification out of Accumulated Other Comprehensive Income
Accumulated Other Comprehensive Income (Loss) [Line Items]
Amounts reclassified from AOCI	2,914	1,093
Reclassification out of Accumulated Other Comprehensive Income | Securities AFS
Accumulated Other Comprehensive Income (Loss) [Line Items]
Debt securities gains/(losses), net	0	(52)
Provision/(benefit) for income taxes	0	13
Amounts reclassified from AOCI	0	(39)
Reclassification out of Accumulated Other Comprehensive Income | Cash Flow Hedges
Accumulated Other Comprehensive Income (Loss) [Line Items]
Provision/(benefit) for income taxes	(476)	51
Amounts reclassified from AOCI	1,451	(155)
Interest and fees on loans	1,927	(206)
Reclassification out of Accumulated Other Comprehensive Income | Pension and Post-retirement Plans
Accumulated Other Comprehensive Income (Loss) [Line Items]
Amounts reclassified from AOCI	1,463	1,287
All other expense (Note 8)	1,943	1,709
Reclassification from AOCI, current period, tax	$ (480)	$ (422)

Earnings Per Share - Schedule O

Earnings Per Share - Schedule Of Reconciliation Of Net Income/(Loss) to Net Income/(Loss) Available to Common Shareholders (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended
	Mar. 31, 2019	Mar. 31, 2018
Earnings Per Share [Abstract]
Net income/(loss)	$ 103,405	$ 94,994
Net income attributable to noncontrolling interest	2,820	2,820
Net income/(loss) attributable to controlling interest	100,585	92,174
Preferred stock dividends	1,550	1,550
Net income/(loss) available to common shareholders	$ 99,035	$ 90,624
Weighted average common shares outstanding - basic (in shares)	317,435	326,489
Effect of dilutive securities (in shares)	2,146	3,855
Weighted average common shares outstanding - diluted (in shares)	319,581	330,344
Net income/(loss) per share available to common shareholders (in dollars per share)	$ 0.31	$ 0.28
Diluted income/(loss) per share available to common shareholders (in dollars per share)	$ 0.31	$ 0.27

Earnings Per Share - Schedule_2

Earnings Per Share - Schedule Of Anti-Dilutive Options and Awards (Details) - $ / shares shares in Thousands	3 Months Ended
	Mar. 31, 2019	Mar. 31, 2018
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Weighted average exercise price of stock options excluded from the calculation of diluted EPS (in dollars per share)	$ 21.77	$ 24.83
Employee Stock Option
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Stock options excluded from the calculation of diluted EPS (in shares)	2,613	2,410
Other Equity Awards
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Stock options excluded from the calculation of diluted EPS (in shares)	1,922	307

Contingencies And Other Discl_2

Contingencies And Other Disclosures (Details) - USD ($)	3 Months Ended
	Jun. 30, 2019	Mar. 31, 2019	Dec. 31, 2018
Loss Contingencies [Line Items]
Estimated litigation liability		$ 32,900,000
Accrued losses on loan repurchase exposure		31,900,000	$ 32,300,000
Mortgage Securitization Litigation
Loss Contingencies [Line Items]
Investment in proprietary securitizations subject to lawsuits		83,400,000
Investment in proprietary securitizations subject to indemnifications		231,200,000
Minimum
Loss Contingencies [Line Items]
Estimated reasonably possible losses in excess of currently established liabilities		0
Maximum
Loss Contingencies [Line Items]
Estimated reasonably possible losses in excess of currently established liabilities		$ 20,000,000
Scenario, Forecast
Loss Contingencies [Line Items]
Settlement payment to reduce accrual	$ 12,600,000

Pension, Savings, And Other E_3

Pension, Savings, And Other Employee Benefits - Narrative (Details) $ in Millions	3 Months Ended	12 Months Ended
	Mar. 31, 2019USD ($)pension_plan	Dec. 31, 2018USD ($)
Defined Benefit Plan Disclosure [Line Items]
Defined benefit plan, expected contributions by employer remainder of year	$ 5.2
Savings Plan
Defined Benefit Plan Disclosure [Line Items]
Employer investment in qualified defined contribution plan	100.00%
Maximum percent of employee pre-tax contributions that may be matched by the Company (percent)	6.00%
Qualified Plan | Pension Benefits
Defined Benefit Plan Disclosure [Line Items]
Estimated social security benefits age	65 years
Nonqualified Plan | Pension Benefits
Defined Benefit Plan Disclosure [Line Items]
Defined benefit plan, contributions by employer		$ 5.8
Capital Bank Financial Corp | Qualified Plan | Pension Benefits
Defined Benefit Plan Disclosure [Line Items]
Number of additional qualified pension plans | pension_plan	2
Defined benefit plan, benefit obligation		17.1
Defined benefit plan, fair value of plan assets		$ 16.5

Pension, Savings, And Other E_4

Pension, Savings, And Other Employee Benefits - Schedule Of Components Of Net Periodic Benefit Cost (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2019	Mar. 31, 2018
Pension Benefits
Defined Benefit Plan Disclosure [Line Items]
Service cost	$ 8	$ 10
Interest cost	7,575	6,986
Expected return on plan assets	(9,173)	(8,225)
Actuarial (gain)/loss	2,435	2,956
Net periodic benefit cost/(credit)	845	1,727
Other Benefits
Defined Benefit Plan Disclosure [Line Items]
Service cost	24	33
Interest cost	351	327
Expected return on plan assets	(269)	(269)
Actuarial (gain)/loss	(117)	(91)
Net periodic benefit cost/(credit)	$ (11)	$ 0

Business Segment Information -

Business Segment Information - Amounts Of Consolidated Revenue, Expense, Tax And Assets (Details) $ in Thousands	3 Months Ended
	Mar. 31, 2019USD ($)segment	Mar. 31, 2018USD ($)
Segment Reporting, Measurement Disclosures [Abstract]
Number of operating segments | segment	4
Segment Reporting Information [Line Items]
Net interest income	$ 294,508	$ 301,173
Provision/(provision credit) for loan losses	9,000	(1,000)
Noninterest income	141,045	136,017
Noninterest expense	296,090	313,265
Income/(loss) before income taxes	130,463	124,925
Provision/(benefit) for income taxes	27,058	29,931
Net income/(loss)	103,405	94,994
Average assets	40,883,192	40,350,724
Regional Banking
Segment Reporting Information [Line Items]
Net interest income	287,157	293,194
Provision/(provision credit) for loan losses	13,958	4,458
Noninterest income	72,117	79,963
Noninterest expense	199,959	201,749
Income/(loss) before income taxes	145,357	166,950
Provision/(benefit) for income taxes	33,693	39,340
Net income/(loss)	111,664	127,610
Average assets	28,889,492	28,171,416
Fixed Income
Segment Reporting Information [Line Items]
Net interest income	7,322	8,475
Noninterest income	53,807	45,605
Noninterest expense	51,227	49,931
Income/(loss) before income taxes	9,902	4,149
Provision/(benefit) for income taxes	2,283	896
Net income/(loss)	7,619	3,253
Average assets	2,849,939	3,479,425
Corporate
Segment Reporting Information [Line Items]
Net interest income	(7,853)	(16,184)
Noninterest income	13,352	9,316
Noninterest expense	40,351	53,329
Income/(loss) before income taxes	(34,852)	(60,197)
Provision/(benefit) for income taxes	(11,403)	(13,771)
Net income/(loss)	(23,449)	(46,426)
Average assets	8,050,162	7,115,661
Non-Strategic
Segment Reporting Information [Line Items]
Net interest income	7,882	15,688
Provision/(provision credit) for loan losses	(4,958)	(5,458)
Noninterest income	1,769	1,133
Noninterest expense	4,553	8,256
Income/(loss) before income taxes	10,056	14,023
Provision/(benefit) for income taxes	2,485	3,466
Net income/(loss)	7,571	10,557
Average assets	$ 1,093,599	$ 1,584,222

Business Segment Information _2

Business Segment Information - Disaggregation of Revenue (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2019	Mar. 31, 2018
Disaggregation of Revenue [Line Items]
Fixed income	$ 53,749	$ 45,506
Deposit transactions and cash management	31,621	35,984
Brokerage, management fees and commissions	12,633	13,483
Trust services and investment management	7,026	7,277
Bankcard income	6,015	6,445
Bank-owned life insurance (BOLI)	4,402	3,993
Debt securities gains/(losses), net	0	52
Equity securities gains/(losses), net	31	34
All other income and commissions (Note 8)	25,568	23,243
Total noninterest income	141,045	136,017
Gain on sale of a building		3,300
Regional Banking
Disaggregation of Revenue [Line Items]
Fixed income	17	81
Deposit transactions and cash management	30,005	34,722
Brokerage, management fees and commissions	12,629	13,483
Trust services and investment management	7,056	7,292
Bankcard income	6,102	6,279
Bank-owned life insurance (BOLI)	0	0
Debt securities gains/(losses), net	0	0
Equity securities gains/(losses), net	0	0
All other income and commissions (Note 8)	16,308	18,106
Total noninterest income	72,117	79,963
Fixed Income
Disaggregation of Revenue [Line Items]
Fixed income	53,732	45,425
Deposit transactions and cash management	3	3
Brokerage, management fees and commissions	0	0
Trust services and investment management	0	0
Bankcard income	0	0
Bank-owned life insurance (BOLI)	0	0
Debt securities gains/(losses), net	0	0
Equity securities gains/(losses), net	0	0
All other income and commissions (Note 8)	72	177
Total noninterest income	53,807	45,605
Corporate
Disaggregation of Revenue [Line Items]
Fixed income	0	0
Deposit transactions and cash management	1,563	1,209
Brokerage, management fees and commissions	0	0
Trust services and investment management	(30)	(15)
Bankcard income	62	56
Bank-owned life insurance (BOLI)	4,402	3,993
Debt securities gains/(losses), net	0	52
Equity securities gains/(losses), net	31	34
All other income and commissions (Note 8)	7,324	3,987
Total noninterest income	13,352	9,316
Non-Strategic
Disaggregation of Revenue [Line Items]
Fixed income	0	0
Deposit transactions and cash management	50	50
Brokerage, management fees and commissions	4	0
Trust services and investment management	0	0
Bankcard income	(149)	110
Bank-owned life insurance (BOLI)	0	0
Debt securities gains/(losses), net	0	0
Equity securities gains/(losses), net	0	0
All other income and commissions (Note 8)	1,864	973
Total noninterest income	1,769	1,133
Underwriting, Portfolio Advisory, and Other Noninterest Income
Disaggregation of Revenue [Line Items]
Fixed income	$ 7,300	$ 8,200

Variable Interest Entities - Su

Variable Interest Entities - Summary Of VIE Consolidated By FHN (Details) - USD ($) $ in Thousands	Mar. 31, 2019		Dec. 31, 2018		Mar. 31, 2018	Dec. 31, 2017
Assets:
Cash and due from banks	$ 570,589		$ 781,291
Loans, net of unearned income	27,990,048	[1]	27,535,532	[1]	$ 27,249,793
Less: Allowance for loan losses	184,911		180,424		$ 187,194	$ 189,555
Total net loans	27,805,137		27,355,108
Total assets	1,910,626		1,802,939
Total assets	41,099,003		40,832,258
Liabilities:
Term borrowings	1,177,926		1,170,963
Other liabilities	748,606		580,335
Total liabilities	36,252,482		36,046,878
On-Balance Sheet Consumer Loan Securitization
Assets:
Cash and due from banks	0		0
Loans, net of unearned income	14,990		16,213
Less: Allowance for loan losses	0		0
Total net loans	14,990		16,213
Total assets	34		35
Total assets	15,024		16,248
Liabilities:
Term borrowings	1,802		2,981
Other liabilities	0		0
Total liabilities	1,802		2,981
Rabbi Trusts Used for Deferred Compensation Plans
Assets:
Total assets	83,941		78,446
Total assets	83,941		78,446
Liabilities:
Other liabilities	64,069		56,700
Total liabilities	$ 64,069		$ 56,700
[1]	March 31, 2019 and December 31, 2018 include $24.1 million and $28.6 million, respectively, of held-to-maturity consumer mortgage loans secured by residential real estate in process of foreclosure.

Variable Interest Entities - Na

Variable Interest Entities - Narrative (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2019	Mar. 31, 2018	Dec. 31, 2018	Nov. 30, 2017
Variable Interest Entity [Line Items]
Income (loss) from affordable housing projects, equity method investments	$ (0.5)	$ (1)
Decrease in investment balance			$ 15.3
Capital Bank Financial Corp | Junior Subordinated Debt
Variable Interest Entity [Line Items]
Term borrowings				$ 212.4
Debt instrument, retired during period			$ 45.4

Variable Interest Entities - _2

Variable Interest Entities - Summary of the Impact of Qualifying LIHTC Investments (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2019	Mar. 31, 2018
Low income housing tax credits
Variable Interest Entity [Line Items]
Amortization of qualifying LIHTC investments	$ 3,998	$ 2,356
Affordable Housing Tax Credits and Other Tax Benefits	(3,629)	(2,537)
Other tax benefits related to qualifying LIHTC investments
Variable Interest Entity [Line Items]
Affordable Housing Tax Credits and Other Tax Benefits	$ (1,610)	$ (690)

Variable Interest Entities - _3

Variable Interest Entities - Summary Of VIE Not Consolidated By FHN (Details) - USD ($) $ in Thousands	Mar. 31, 2019		Dec. 31, 2018		Mar. 31, 2018
Variable Interest Entity [Line Items]
Loans, net of unearned income	$ 27,990,048	[1]	$ 27,535,532	[1]	$ 27,249,793
Trading securities	1,681,727		1,448,168
Securities available-for-sale	4,616,322		4,626,470
Term borrowings	1,177,926		1,170,963
Low Income Housing Partnerships
Variable Interest Entity [Line Items]
Maximum Loss Exposure	152,048		156,056
Liability Recognized	79,691		80,427
Maximum loss exposure, contractual funding commitments	79,700		80,400
Low Income Housing Partnerships | Other Assets
Variable Interest Entity [Line Items]
Maximum loss exposure, current investments	72,400		75,600
Other Tax Credit Investments
Variable Interest Entity [Line Items]
Maximum Loss Exposure	8,961		3,619
Liability Recognized	0		0
Other Tax Credit Investments | Other Assets
Variable Interest Entity [Line Items]
Maximum loss exposure, current investments	2,700		2,700
Small Issuer Trust Preferred Holdings
Variable Interest Entity [Line Items]
Maximum Loss Exposure	269,635		270,585
Liability Recognized	0		0
On Balance Sheet Trust Preferred Securitization
Variable Interest Entity [Line Items]
Maximum Loss Exposure	37,121		37,532
Liability Recognized	77,053		76,642
Loans, net of unearned income	112,500		112,500
Trading securities	1,700		1,700
Term borrowings	77,100		76,600
Proprietary & Agency Residential Mortgage Securitizations
Variable Interest Entity [Line Items]
Maximum Loss Exposure	1,397		1,524
Liability Recognized	0		0
Holdings Of Agency Mortgage Backed Securities
Variable Interest Entity [Line Items]
Maximum Loss Exposure	4,905,088		4,842,630
Liability Recognized	0		0
Trading securities	600,000		500,000
Securities available-for-sale	4,300,000		4,400,000
Commercial Loan Troubled Debt Restructurings
Variable Interest Entity [Line Items]
Maximum Loss Exposure	51,893		40,590
Liability Recognized	0		0
Maximum loss exposure, contractual funding commitments	300		2,300
Loans, net of unearned income	51,600		38,200
Sale Leaseback Transaction
Variable Interest Entity [Line Items]
Maximum Loss Exposure	19,777		16,327
Liability Recognized	0		0
Proprietary Trust Preferred Issuances
Variable Interest Entity [Line Items]
Maximum Loss Exposure	0		0
Liability Recognized	$ 167,014		$ 167,014
[1]	March 31, 2019 and December 31, 2018 include $24.1 million and $28.6 million, respectively, of held-to-maturity consumer mortgage loans secured by residential real estate in process of foreclosure.

Derivatives - Narrative (Detail

Derivatives - Narrative (Details) - USD ($)	3 Months Ended
	Mar. 31, 2019	Mar. 31, 2018	Mar. 31, 2017	Mar. 31, 2016	Dec. 31, 2018
Derivative Instruments, Gain (Loss) [Line Items]
Total trading revenues	$ 44,500,000	$ 38,000,000
Term borrowings	1,177,926,000				$ 1,170,963,000
Cash flow hedge length of time				5 years
Hedged amount of foreign currency denominated loans	15,200,000				11,000,000
Cash Flow Hedge | Hedged Items
Derivative Instruments, Gain (Loss) [Line Items]
Variability in cash flows related to debt instruments (primarily loans)				$ 250,000,000
Notional			$ 650,000,000
Visa Class B Shares
Derivative Instruments, Gain (Loss) [Line Items]
Derivative liabilities related to sale	29,000,000				31,500,000
Long Term Debt Hedged With Fair Value Interest Rate Derivatives Using Long Haul Method
Derivative Instruments, Gain (Loss) [Line Items]
Term borrowings	500,000,000
Long Term Debt Hedged With Fair Value Interest Rate Derivatives Using Long Haul Method | First Tennessee Bank National Association
Derivative Instruments, Gain (Loss) [Line Items]
Term borrowings	400,000,000
Additional Derivative Agreements | Derivative Instruments With Adjustable Collateral Posting Thresholds
Derivative Instruments, Gain (Loss) [Line Items]
Net fair value of derivative assets with adjustable posting thresholds	27,200,000				20,700,000
Net fair value of derivative liabilities with adjustable posting thresholds	16,400,000				37,800,000
Collateral received	86,300,000				86,600,000
Securities posted collateral	18,600,000				16,200,000
Additional Derivative Agreements | Derivative Instruments With Accelerated Termination Provisions
Derivative Instruments, Gain (Loss) [Line Items]
Net fair value of derivative assets with adjustable posting thresholds	27,200,000				19,000,000
Net fair value of derivative liabilities with adjustable posting thresholds	10,900,000				33,200,000
Collateral received	86,300,000				84,500,000
Securities posted collateral	13,500,000				15,200,000
Minimum | Cash Flow Hedge | Hedged Items
Derivative Instruments, Gain (Loss) [Line Items]
Derivative, term of contract			3 years
Maximum | Cash Flow Hedge | Hedged Items
Derivative Instruments, Gain (Loss) [Line Items]
Derivative, term of contract			7 years
Counterparties
Derivative Instruments, Gain (Loss) [Line Items]
Collateral cash receivables	79,600,000				76,000,000
Collateral cash payables	$ 33,200,000				$ 34,000,000

Derivatives - Derivatives Assoc

Derivatives - Derivatives Associated with Fixed Income Trading Activities (Details) - USD ($) $ in Thousands	Mar. 31, 2019	Dec. 31, 2018
Customer interest rate contracts
Derivative Instruments, Gain (Loss) [Line Items]
Notional	$ 2,279,361	$ 2,271,448
Assets	30,632	18,744
Liabilities	14,245	27,768
Offsetting upstream interest rate contracts
Derivative Instruments, Gain (Loss) [Line Items]
Notional	2,279,361	2,271,448
Assets	5,056	4,014
Liabilities	4,834	9,041
Option contracts purchased | Long
Derivative Instruments, Gain (Loss) [Line Items]
Notional	72,500	20,000
Assets	103	25
Liabilities	0	0
Forwards and futures purchased
Derivative Instruments, Gain (Loss) [Line Items]
Notional	7,983,000	4,684,177
Assets	31,733	28,304
Liabilities	4,404	181
Forwards and futures sold
Derivative Instruments, Gain (Loss) [Line Items]
Notional	8,373,739	4,967,454
Assets	5,243	522
Liabilities	$ 32,284	$ 30,055

Derivatives - Derivatives Ass_2

Derivatives - Derivatives Associated With Interest Rate Risk Management Activities (Details) - USD ($) $ in Thousands	Mar. 31, 2019	Dec. 31, 2018
Customer interest rate contracts
Derivative Instruments, Gain (Loss) [Line Items]
Notional	$ 2,279,361	$ 2,271,448
Assets	30,632	18,744
Liabilities	14,245	27,768
Offsetting upstream interest rate contracts
Derivative Instruments, Gain (Loss) [Line Items]
Notional	2,279,361	2,271,448
Assets	5,056	4,014
Liabilities	4,834	9,041
Customer Interest Rate Contracts Hedging | Hedging Instruments And Hedged Items | Customer interest rate contracts
Derivative Instruments, Gain (Loss) [Line Items]
Notional	2,122,743	2,029,162
Assets	37,754	20,262
Liabilities	14,260	25,880
Customer Interest Rate Contracts Hedging | Hedging Instruments And Hedged Items | Offsetting upstream interest rate contracts
Derivative Instruments, Gain (Loss) [Line Items]
Notional	2,122,743	2,029,162
Assets	7,232	8,154
Liabilities	6,731	9,153
Debt Hedging | Hedging Instruments And Hedged Items | Interest Rate Swap
Derivative Instruments, Gain (Loss) [Line Items]
Notional	900,000	900,000
Assets		127
Liabilities	448	6
Debt Hedging | Hedging Instruments And Hedged Items | Term Borrowings, Par
Derivative Instruments, Gain (Loss) [Line Items]
Term borrowings	900,000	900,000
Debt Hedging | Hedging Instruments And Hedged Items | Term Borrowings, Cumulative Fair Value Hedging Adjustments
Derivative Instruments, Gain (Loss) [Line Items]
Term borrowings	(10,828)	(15,094)
Debt Hedging | Hedging Instruments And Hedged Items | Term Borrowings, Unamortized Premium (Discount) and Issuance Costs
Derivative Instruments, Gain (Loss) [Line Items]
Term borrowings	(1,891)	(2,295)
Debt Hedging | Hedging Instruments And Hedged Items | Term Borrowings
Derivative Instruments, Gain (Loss) [Line Items]
Term borrowings	$ 887,281	$ 882,611

Derivatives - Gains_(Losses) on

Derivatives - Gains/(Losses) on Derivatives Associated with Interest Rate Risk Management Activities (Details) - Hedging Instruments And Hedged Items - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2019	Mar. 31, 2018
Customer Interest Rate Contracts Hedging | Customer interest rate contracts
Derivative Instruments, Gain (Loss) [Line Items]
Gains (losses) related to interest rate derivatives	$ 29,112	$ (24,724)
Customer Interest Rate Contracts Hedging | Offsetting upstream interest rate contracts
Derivative Instruments, Gain (Loss) [Line Items]
Gains (losses) related to interest rate derivatives	(29,112)	24,724
Debt Hedging | Interest Rate Swap
Derivative Instruments, Gain (Loss) [Line Items]
Gains (losses) related to interest rate derivatives	4,279	(6,595)
Debt Hedging | Term Borrowings
Derivative Instruments, Gain (Loss) [Line Items]
Gains/(Losses) related to term borrowings	$ (4,266)	$ 6,550

Derivatives - Derivatives Ass_3

Derivatives - Derivatives Associated With Cash Flow Hedges (Details) - Cash Flow Hedge - Hedging Instruments And Hedged Items - USD ($)	Mar. 31, 2019	Dec. 31, 2018	Mar. 31, 2017	Mar. 31, 2016
Derivative Instruments, Gain (Loss) [Line Items]
Notional			$ 650,000,000
Variability in cash flows related to debt instruments (primarily loans)				$ 250,000,000
Interest Rate Contract
Derivative Instruments, Gain (Loss) [Line Items]
Variability in cash flows related to debt instruments (primarily loans)	$ 900,000,000	$ 900,000,000
Interest Rate Swap
Derivative Instruments, Gain (Loss) [Line Items]
Notional	900,000,000	900,000,000
Cash Flow Hedge Derivative Instrument Assets at Fair Value		888,000
Liabilities	$ 891,000	$ 5,000

Derivatives - Gains_(Losses) _2

Derivatives - Gains/(Losses) on Derivatives Associated with Cash Flow Hedges (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2019	Mar. 31, 2018
Derivative Instruments, Gain (Loss) [Line Items]
Gain/(loss) expected to be reclassified to earnings in the next twelve months	$ 5,000
Hedging Instruments And Hedged Items
Derivative Instruments, Gain (Loss) [Line Items]
Gain (loss), cash flow hedges	3,936	$ (8,844)
Gain/(loss) reclassified from AOCI into Interest income	1,451	(155)
Hedging Instruments And Hedged Items | Interest Rate Swap
Derivative Instruments, Gain (Loss) [Line Items]
Gain (loss), cash flow hedges	$ 7,218	$ (11,618)

Derivatives - Derivative Assets

Derivatives - Derivative Assets And Collateral Received (Details) - USD ($) $ in Thousands	Mar. 31, 2019	Dec. 31, 2018
Derivative [Line Items]
Gross amounts of recognized assets	$ 118,128	$ 81,475
Derivative assets not subject to master netting agreements	37,100	28,900
Derivatives, interest rate contracts
Derivative [Line Items]
Collateral received	(68,887)	(39,637)
Net amount	35	180
Derivatives, interest rate contracts | Subject to Master Netting Agreements
Derivative [Line Items]
Gross amounts of recognized assets	81,003	52,562
Derivative liabilities available for offset	0	0
Net amount	81,003	52,562
Derivative liabilities available for offset	$ (12,081)	$ (12,745)

Derivatives - Derivative Liabil

Derivatives - Derivative Liabilities and Collateral Pledged (Details) - USD ($) $ in Thousands	Mar. 31, 2019	Dec. 31, 2018
Derivative [Line Items]
Gross amounts of recognized liabilities	$ 107,123	$ 133,713
Derivative liabilities not subject to master netting agreements	65,700	61,900
Derivatives, interest rate contracts
Derivative [Line Items]
Collateral pledged	(28,679)	(54,773)
Net amount	649	4,335
Subject to Master Netting Agreements | Derivatives, interest rate contracts
Derivative [Line Items]
Gross amounts of recognized liabilities	41,409	71,853
Derivative assets available for offset	0	0
Derivative liability	41,409	71,853
Derivative assets available for offset	$ (12,081)	$ (12,745)

Master Netting and Similar Ag_3

Master Netting and Similar Agreements—Repurchase, Reverse Repurchase, and Securities Borrowing Transactions - Securities Purchased Under Agreements To Resell And Collateral Pledged By Counterparties (Details) - USD ($) $ in Thousands	Mar. 31, 2019	Dec. 31, 2018
Securities Purchased under Agreements to Resell [Abstract]
Gross amounts of recognized assets	$ 474,679	$ 386,443
Gross amounts offset in the Statements of Condition	0	0
Net amounts of assets presented in the Statements of Condition	474,679	386,443
Offsetting securities sold under agreements to repurchase	(1,276)	(261)
Securities collateral (not recognized on FHN’s Statements of Condition)	(469,450)	(382,756)
Net amount	$ 3,953	$ 3,426

Master Netting and Similar Ag_4

Master Netting and Similar Agreements—Repurchase, Reverse Repurchase, and Securities Borrowing Transactions - Securities Sold Under Agreements To Repurchase And Collateral Pledged By Company (Details) - USD ($) $ in Thousands	Mar. 31, 2019	Dec. 31, 2018
Securities Sold under Agreements to Repurchase [Abstract]
Gross amounts of recognized liabilities	$ 745,788	$ 762,592
Gross amounts offset in the Statements of Condition	0	0
Net amounts of liabilities presented in the Statements of Condition	745,788	762,592
Offsetting securities purchased under agreements to resell	(1,276)	(261)
Securities/ government guaranteed loans collateral	(744,427)	(762,322)
Net amount	$ 85	$ 9

Master Netting and Similar Ag_5

Master Netting and Similar Agreements—Repurchase, Reverse Repurchase, and Securities Borrowing Transactions - Schedule of the Remaining Contractual Maturity by Collateral Type of Securities Sold Under Agreements To Repurchase (Details) - USD ($) $ in Thousands	Mar. 31, 2019	Dec. 31, 2018
Transfer of Certain Financial Assets Accounted for as Secured Borrowings [Line Items]
Securities sold under agreements to repurchase	$ 745,788	$ 762,592
Overnight and Continuous
Transfer of Certain Financial Assets Accounted for as Secured Borrowings [Line Items]
Securities sold under agreements to repurchase	736,648	757,372
Up to 30 Days
Transfer of Certain Financial Assets Accounted for as Secured Borrowings [Line Items]
Securities sold under agreements to repurchase	9,140	5,220
U.S. treasuries
Transfer of Certain Financial Assets Accounted for as Secured Borrowings [Line Items]
Securities sold under agreements to repurchase	24,108	16,321
U.S. treasuries | Overnight and Continuous
Transfer of Certain Financial Assets Accounted for as Secured Borrowings [Line Items]
Securities sold under agreements to repurchase	24,108	16,321
U.S. treasuries | Up to 30 Days
Transfer of Certain Financial Assets Accounted for as Secured Borrowings [Line Items]
Securities sold under agreements to repurchase	0	0
Government agency issued MBS
Transfer of Certain Financial Assets Accounted for as Secured Borrowings [Line Items]
Securities sold under agreements to repurchase	375,977	419,708
Government agency issued MBS | Overnight and Continuous
Transfer of Certain Financial Assets Accounted for as Secured Borrowings [Line Items]
Securities sold under agreements to repurchase	366,837	414,488
Government agency issued MBS | Up to 30 Days
Transfer of Certain Financial Assets Accounted for as Secured Borrowings [Line Items]
Securities sold under agreements to repurchase	9,140	5,220
Government agency issued CMO
Transfer of Certain Financial Assets Accounted for as Secured Borrowings [Line Items]
Securities sold under agreements to repurchase	36,137	36,688
Government agency issued CMO | Overnight and Continuous
Transfer of Certain Financial Assets Accounted for as Secured Borrowings [Line Items]
Securities sold under agreements to repurchase	36,137	36,688
Government agency issued CMO | Up to 30 Days
Transfer of Certain Financial Assets Accounted for as Secured Borrowings [Line Items]
Securities sold under agreements to repurchase	0	0
Government guaranteed loans (SBA and USDA)
Transfer of Certain Financial Assets Accounted for as Secured Borrowings [Line Items]
Securities sold under agreements to repurchase	309,566	289,875
Government guaranteed loans (SBA and USDA) | Overnight and Continuous
Transfer of Certain Financial Assets Accounted for as Secured Borrowings [Line Items]
Securities sold under agreements to repurchase	309,566	289,875
Government guaranteed loans (SBA and USDA) | Up to 30 Days
Transfer of Certain Financial Assets Accounted for as Secured Borrowings [Line Items]
Securities sold under agreements to repurchase	$ 0	$ 0

Fair Value of Assets & Liabil_3

Fair Value of Assets & Liabilities - Narrative (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2019	Dec. 31, 2018	Sep. 30, 2018	Jun. 30, 2018	Mar. 31, 2018
Segment Reporting Information [Line Items]
Gain/(loss) on instrument specific credit risk	$ 0.3				$ 0.3
Corporate
Segment Reporting Information [Line Items]
Asset impairment charges		$ 1.9	$ 0.7	$ 1.3
Reversed asset impairment charges		$ 0.5	$ 1
Leased Assets | 2019 Business Optimization | Corporate
Segment Reporting Information [Line Items]
Asset impairment charges	0.8
Long Lived Tangible Assets | 2019 Business Optimization | Corporate
Segment Reporting Information [Line Items]
Asset impairment charges	$ 0.5

Fair Value of Assets & Liabil_4

Fair Value of Assets & Liabilities - Schedule Of Assets And Liabilities Measured At Fair Value On A Recurring Basis (Details) - USD ($) $ in Thousands	Mar. 31, 2019	Dec. 31, 2018
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Trading securities	$ 1,681,727	$ 1,448,168
Loans held-for-sale	15,751	16,273
Securities available-for-sale	4,616,322	4,626,470
Recurring
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Loans held-for-sale	15,751	16,273
Securities available-for-sale	4,616,322	4,626,470
Total other assets	181,551	141,494
Total assets	6,495,351	6,232,405
Total other liabilities	107,123	133,713
Total liabilities	536,792	469,093
Level 1 | Recurring
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Loans held-for-sale	0	0
Securities available-for-sale	0	0
Total other assets	100,399	88,845
Total assets	100,399	88,845
Total other liabilities	36,688	30,236
Total liabilities	36,688	30,236
Level 2 | Recurring
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Loans held-for-sale	0	0
Securities available-for-sale	4,603,127	4,616,568
Total other assets	81,152	52,649
Total assets	6,364,609	6,115,861
Total other liabilities	41,465	71,937
Total liabilities	471,134	407,317
Level 3 | Recurring
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Loans held-for-sale	15,751	16,273
Securities available-for-sale	13,195	9,902
Total other assets	0	0
Total assets	30,343	27,699
Total other liabilities	28,970	31,540
Total liabilities	28,970	31,540
Deferred compensation mutual funds | Recurring
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Total other assets	41,097	37,771
Deferred compensation mutual funds | Level 1 | Recurring
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Total other assets	41,097	37,771
Deferred compensation mutual funds | Level 2 | Recurring
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Total other assets	0	0
Deferred compensation mutual funds | Level 3 | Recurring
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Total other assets	0	0
Derivatives, forwards and futures | Recurring
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Total other assets	36,976	28,826
Total other liabilities	36,688	30,236
Derivatives, forwards and futures | Level 1 | Recurring
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Total other assets	36,976	28,826
Total other liabilities	36,688	30,236
Derivatives, forwards and futures | Level 2 | Recurring
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Total other assets	0	0
Total other liabilities	0	0
Derivatives, forwards and futures | Level 3 | Recurring
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Total other assets	0	0
Total other liabilities	0	0
Derivatives, interest rate contracts | Recurring
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Total other assets	80,777	52,214
Total other liabilities	41,409	71,853
Derivatives, interest rate contracts | Level 1 | Recurring
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Total other assets	0	0
Total other liabilities	0	0
Derivatives, interest rate contracts | Level 2 | Recurring
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Total other assets	80,777	52,214
Total other liabilities	41,409	71,853
Derivatives, interest rate contracts | Level 3 | Recurring
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Total other assets	0	0
Total other liabilities	0	0
Derivatives, other | Recurring
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Total other assets	375	435
Total other liabilities	29,026	31,624
Derivatives, other | Level 1 | Recurring
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Total other assets	0	0
Total other liabilities	0	0
Derivatives, other | Level 2 | Recurring
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Total other assets	375	435
Total other liabilities	56	84
Derivatives, other | Level 3 | Recurring
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Total other assets	0	0
Total other liabilities	28,970	31,540
U.S. treasuries | Recurring
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Securities available-for-sale	99	98
U.S. treasuries | Level 1 | Recurring
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Securities available-for-sale	0	0
U.S. treasuries | Level 2 | Recurring
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Securities available-for-sale	99	98
U.S. treasuries | Level 3 | Recurring
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Securities available-for-sale	0	0
Government agency issued MBS | Recurring
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Securities available-for-sale	2,385,809	2,420,106
Government agency issued MBS | Level 1 | Recurring
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Securities available-for-sale	0	0
Government agency issued MBS | Level 2 | Recurring
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Securities available-for-sale	2,385,809	2,420,106
Government agency issued MBS | Level 3 | Recurring
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Securities available-for-sale	0	0
Government agency issued CMO | Recurring
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Securities available-for-sale	1,931,784	1,958,695
Government agency issued CMO | Level 1 | Recurring
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Securities available-for-sale	0	0
Government agency issued CMO | Level 2 | Recurring
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Securities available-for-sale	1,931,784	1,958,695
Government agency issued CMO | Level 3 | Recurring
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Securities available-for-sale	0	0
Other U.S. government agencies | Recurring
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Securities available-for-sale	190,828	149,786
Other U.S. government agencies | Level 1 | Recurring
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Securities available-for-sale	0	0
Other U.S. government agencies | Level 2 | Recurring
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Securities available-for-sale	190,828	149,786
Other U.S. government agencies | Level 3 | Recurring
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Securities available-for-sale	0	0
States and municipalities | Recurring
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Securities available-for-sale	39,423	32,573
States and municipalities | Level 1 | Recurring
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Securities available-for-sale	0	0
States and municipalities | Level 2 | Recurring
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Securities available-for-sale	39,423	32,573
States and municipalities | Level 3 | Recurring
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Securities available-for-sale	0	0
Corporates and other debt | Recurring
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Securities available-for-sale	55,184	55,310
Corporates and other debt | Level 1 | Recurring
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Securities available-for-sale	0	0
Corporates and other debt | Level 2 | Recurring
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Securities available-for-sale	55,184	55,310
Corporates and other debt | Level 3 | Recurring
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Securities available-for-sale	0	0
Equity, mutual funds, and other | Recurring
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Total other assets	22,326	22,248
Equity, mutual funds, and other | Level 1 | Recurring
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Total other assets	22,326	22,248
Equity, mutual funds, and other | Level 2 | Recurring
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Total other assets	0	0
Equity, mutual funds, and other | Level 3 | Recurring
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Total other assets	0	0
Interest- only strips- AFS | Recurring
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Securities available-for-sale	13,195	9,902
Interest- only strips- AFS | Level 1 | Recurring
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Securities available-for-sale	0	0
Interest- only strips- AFS | Level 2 | Recurring
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Securities available-for-sale	0	0
Interest- only strips- AFS | Level 3 | Recurring
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Securities available-for-sale	13,195	9,902
Fixed Income | Recurring
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Trading securities	1,680,330	1,446,644
Total trading liabilities - fixed income	429,669	335,380
Fixed Income | Level 1 | Recurring
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Trading securities	0	0
Total trading liabilities - fixed income	0	0
Fixed Income | Level 2 | Recurring
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Trading securities	1,680,330	1,446,644
Total trading liabilities - fixed income	429,669	335,380
Fixed Income | Level 3 | Recurring
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Trading securities	0	0
Total trading liabilities - fixed income	0	0
Fixed Income | U.S. treasuries | Recurring
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Trading securities	232,019	169,799
Total trading liabilities - fixed income	284,394	207,739
Fixed Income | U.S. treasuries | Level 1 | Recurring
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Trading securities	0	0
Total trading liabilities - fixed income	0	0
Fixed Income | U.S. treasuries | Level 2 | Recurring
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Trading securities	232,019	169,799
Total trading liabilities - fixed income	284,394	207,739
Fixed Income | U.S. treasuries | Level 3 | Recurring
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Trading securities	0	0
Total trading liabilities - fixed income	0	0
Fixed Income | Government agency issued MBS | Recurring
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Trading securities	292,020	133,373
Fixed Income | Government agency issued MBS | Level 1 | Recurring
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Trading securities	0	0
Fixed Income | Government agency issued MBS | Level 2 | Recurring
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Trading securities	292,020	133,373
Fixed Income | Government agency issued MBS | Level 3 | Recurring
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Trading securities	0	0
Fixed Income | Government agency issued CMO | Recurring
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Trading securities	295,476	330,456
Fixed Income | Government agency issued CMO | Level 1 | Recurring
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Trading securities	0	0
Fixed Income | Government agency issued CMO | Level 2 | Recurring
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Trading securities	295,476	330,456
Fixed Income | Government agency issued CMO | Level 3 | Recurring
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Trading securities	0	0
Fixed Income | Other U.S. government agencies | Recurring
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Trading securities	78,958	76,733
Total trading liabilities - fixed income	16,817	98
Fixed Income | Other U.S. government agencies | Level 1 | Recurring
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Trading securities	0	0
Total trading liabilities - fixed income	0	0
Fixed Income | Other U.S. government agencies | Level 2 | Recurring
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Trading securities	78,958	76,733
Total trading liabilities - fixed income	16,817	98
Fixed Income | Other U.S. government agencies | Level 3 | Recurring
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Trading securities	0	0
Total trading liabilities - fixed income	0	0
Fixed Income | States and municipalities | Recurring
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Trading securities	81,513	54,234
Fixed Income | States and municipalities | Level 1 | Recurring
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Trading securities	0	0
Fixed Income | States and municipalities | Level 2 | Recurring
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Trading securities	81,513	54,234
Fixed Income | States and municipalities | Level 3 | Recurring
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Trading securities	0	0
Fixed Income | Corporates and other debt | Recurring
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Trading securities	696,680	682,068
Total trading liabilities - fixed income	128,458	127,543
Fixed Income | Corporates and other debt | Level 1 | Recurring
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Trading securities	0	0
Total trading liabilities - fixed income	0	0
Fixed Income | Corporates and other debt | Level 2 | Recurring
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Trading securities	696,680	682,068
Total trading liabilities - fixed income	128,458	127,543
Fixed Income | Corporates and other debt | Level 3 | Recurring
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Trading securities	0	0
Total trading liabilities - fixed income	0	0
Fixed Income | Equity, mutual funds, and other | Recurring
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Trading securities	3,664	(19)
Fixed Income | Equity, mutual funds, and other | Level 1 | Recurring
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Trading securities	0	0
Fixed Income | Equity, mutual funds, and other | Level 2 | Recurring
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Trading securities	3,664	(19)
Fixed Income | Equity, mutual funds, and other | Level 3 | Recurring
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Trading securities	0	0
Mortgage Banking | Recurring
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Trading securities	1,397	1,524
Mortgage Banking | Level 1 | Recurring
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Trading securities	0	0
Mortgage Banking | Level 2 | Recurring
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Trading securities	0	0
Mortgage Banking | Level 3 | Recurring
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Trading securities	$ 1,397	$ 1,524

Fair Value of Assets & Liabil_5

Fair Value of Assets & Liabilities - Summary Of Changes In Level 3 Assets And Liabilities Measured At Fair Value (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2019	Mar. 31, 2018
Fair Value, Net Derivative Asset (Liability) Measured on Recurring Basis, Unobservable Input Reconciliation [Roll Forward]
Beginning balance	$ (31,540)	$ (5,645)
Net income	135	(296)
Purchases	0	0
Sales	0	0
Settlements	2,435	296
Net transfers into/(out of) Level 3	0	0
Ending balance	(28,970)	(5,645)
Net unrealized gains/(losses) included in net income	135	(296)
Trading securities
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Beginning balance	1,524	2,151
Net income	21	16
Purchases	0	0
Sales	0	0
Settlements	(148)	(241)
Net transfers into/(out of) Level 3	0	0
Ending balance	1,397	1,926
Net unrealized gains/(losses) included in net income	(30)	(25)
Interest- only strips- AFS
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Beginning balance	9,902	1,270
Net income	(1,258)	1,592
Purchases	86	0
Sales	(13,012)	(9,193)
Settlements	0	0
Net transfers into/(out of) Level 3	17,477	9,064
Ending balance	13,195	2,733
Net unrealized gains/(losses) included in net income	(894)	19
Loans held- for-sale
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Beginning balance	16,273	18,926
Net income	495	169
Purchases	0	28
Sales	0	0
Settlements	(1,017)	(789)
Net transfers into/(out of) Level 3	0	0
Ending balance	15,751	18,334
Net unrealized gains/(losses) included in net income	$ 495	$ 169

Fair Value of Assets & Liabil_6

Fair Value of Assets & Liabilities - Nonrecurring Fair Value Measurements (Details) - USD ($) $ in Thousands		Mar. 31, 2019		Dec. 31, 2018		Mar. 31, 2018
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Loans held-for-sale		$ 15,751		$ 16,273
Loans, net of unearned income		27,990,048	[1]	27,535,532	[1]	$ 27,249,793
OREO	[2]	23,396		25,290
Non Recurring
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Loans, net of unearned income		59,657		48,259
OREO		20,676		22,387
Other assets		13,962		8,845
Non Recurring | Other Consumer Loans Class
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Loans held-for-sale		18,137		18,712
Non Recurring | Small Business Administration And USDA
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Loans held-for-sale		495,451		578,291
Non Recurring | First Mortgages
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Loans held-for-sale		519		541
Non Recurring | Level 1
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Loans, net of unearned income		0		0
OREO		0		0
Other assets		0		0
Non Recurring | Level 1 | Other Consumer Loans Class
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Loans held-for-sale		0		0
Non Recurring | Level 1 | Small Business Administration And USDA
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Loans held-for-sale		0		0
Non Recurring | Level 1 | First Mortgages
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Loans held-for-sale		0		0
Non Recurring | Level 2
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Loans, net of unearned income		0		0
OREO		0		0
Other assets		0		0
Non Recurring | Level 2 | Other Consumer Loans Class
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Loans held-for-sale		18,137		18,712
Non Recurring | Level 2 | Small Business Administration And USDA
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Loans held-for-sale		494,445		577,280
Non Recurring | Level 2 | First Mortgages
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Loans held-for-sale		0		0
Non Recurring | Level 3
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Loans, net of unearned income		59,657		48,259
OREO		20,676		22,387
Other assets		13,962		8,845
Non Recurring | Level 3 | Other Consumer Loans Class
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Loans held-for-sale		0		0
Non Recurring | Level 3 | Small Business Administration And USDA
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Loans held-for-sale		1,006		1,011
Non Recurring | Level 3 | First Mortgages
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Loans held-for-sale		$ 519		$ 541
[1]	March 31, 2019 and December 31, 2018 include $24.1 million and $28.6 million, respectively, of held-to-maturity consumer mortgage loans secured by residential real estate in process of foreclosure.
[2]	March 31, 2019 and December 31, 2018 include $10.1 million and $9.7 million, respectively, of foreclosed residential real estate.

Fair Value of Assets & Liabil_7

Fair Value of Assets & Liabilities - Gains/(losses) on Nonrecurring Fair Value Measurements (Details) - Non Recurring - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2019	Mar. 31, 2018
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Net gains/(losses), Loans, net of unearned income	$ 200	$ 502
Net gains/(losses), Real estate acquired by foreclosure	35	(1,160)
Net gains/(losses), Other assets	(675)	(1,137)
Gain (loss) on financial assets measured on non-recurring basis	(1,308)	(1,996)
First Mortgages
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Net gains/(losses), Loans held for sale	15	5
Other Consumer Loans Class
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Net gains/(losses), Loans held for sale	(200)	0
SBAs
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Net gains/(losses), Loans held for sale	$ (683)	$ (206)

Fair Value of Assets & Liabil_8

Fair Value of Assets & Liabilities - Schedule Of Unobservable Inputs Utilized In Determining The Fair Value Of Level 3 Recurring And Non-Recurring Measurements (Details) $ in Thousands	Mar. 31, 2019USD ($)month	Dec. 31, 2018USD ($)month
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Securities available-for-sale	$ 4,616,322	$ 4,626,470
Loans held-for-sale	15,751	16,273
Level 3
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative liability	28,970	31,540
Loans net of unearned income	59,657	48,259
OREO, fair value	20,676	22,387
Loans Held For Sale - SBA | Level 3
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Loans held-for-sale	1,006	1,011
Other Assets | Level 3
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Other assets	$ 13,962	$ 8,845
Constant prepayment rate | Weighted Average | Discounted cash flow | Loans Held For Sale - SBA | Level 3
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Loans held-for-sale, measurement input	0.10	0.10
Bond equivalent yield | Discounted cash flow | Loans Held For Sale - SBA | Level 3
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Loans held-for-sale, measurement input	0.09	0.09
Bond equivalent yield | Weighted Average | Discounted cash flow | Loans Held For Sale - SBA | Level 3
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Loans held-for-sale, measurement input	0.09	0.09
Prepayment Speeds | Minimum | Discounted cash flow | Loans Held For Sale - SBA | Level 3
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Loans held-for-sale, measurement input	0.08	0.08
Prepayment Speeds | Maximum | Discounted cash flow | Loans Held For Sale - SBA | Level 3
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Loans held-for-sale, measurement input	0.12	0.12
Foreclosure losses | Weighted Average | Discounted cash flow | Loans Held For Sale, Residential Real Estate | Level 3
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Loans held-for-sale, measurement input	0.64	0.63
Foreclosure losses | Minimum | Discounted cash flow | Loans Held For Sale, Residential Real Estate | Level 3
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Loans held-for-sale, measurement input	0.50	0.50
Foreclosure losses | Maximum | Discounted cash flow | Loans Held For Sale, Residential Real Estate | Level 3
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Loans held-for-sale, measurement input	0.66	0.66
Visa covered litigation resolution amount | Weighted Average | Discounted cash flow | Level 3
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative liability, measurement input, value	$ 5,600,000	$ 5,600,000
Visa covered litigation resolution amount | Minimum | Discounted cash flow | Level 3
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative liability, measurement input, value	5,000,000	5,000,000
Visa covered litigation resolution amount | Maximum | Discounted cash flow | Level 3
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative liability, measurement input, value	$ 5,800,000	$ 5,800,000
Probability of resolution scenarios | Weighted Average | Discounted cash flow | Level 3
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative liability, measurement input	0.22	0.23
Probability of resolution scenarios | Minimum | Discounted cash flow | Level 3
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative liability, measurement input	0.15	0.10
Probability of resolution scenarios | Maximum | Discounted cash flow | Level 3
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative liability, measurement input	0.25	0.25
Time until resolution | Weighted Average | Discounted cash flow | Level 3
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative liability, measurement input | month	33	36
Time until resolution | Minimum | Discounted cash flow | Level 3
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative liability, measurement input | month	18	18
Time until resolution | Maximum | Discounted cash flow | Level 3
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative liability, measurement input | month	48	48
Marketability adjustments for specific properties | Minimum | Appraisals from comparable properties | Level 3
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Loans net of unearned income, measurement input	0	0
Other assets, measurement input	0	0
Marketability adjustments for specific properties | Maximum | Appraisals from comparable properties | Level 3
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Loans net of unearned income, measurement input	0.10	0.10
Other assets, measurement input	0.25	0.25
Borrowing base certificates adjustment | Minimum | Other collateral valuations | Level 3
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Loans net of unearned income, measurement input	0.20	0.20
Borrowing base certificates adjustment | Maximum | Other collateral valuations | Level 3
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Loans net of unearned income, measurement input	0.50	0.50
Financial Statements/Auction values adjustment | Minimum | Other collateral valuations | Level 3
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Loans net of unearned income, measurement input	0	0
Financial Statements/Auction values adjustment | Maximum | Other collateral valuations | Level 3
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Loans net of unearned income, measurement input	0.25	0.25
Adjustment for value changes since appraisal | Minimum | Appraisals from comparable properties | Level 3
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
OREO measurement input	0	0
Adjustment for value changes since appraisal | Maximum | Appraisals from comparable properties | Level 3
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
OREO measurement input	0.10	0.10
Adjustments to current sales yields for specific properties | Minimum | Discounted cash flow | Level 3
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Other assets, measurement input	0	0
Adjustments to current sales yields for specific properties | Maximum | Discounted cash flow | Level 3
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Other assets, measurement input	0.15	0.15
Residential Real Estate | Loans Held For Sale, Residential Real Estate | Level 3
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Loans held-for-sale	$ 16,270	$ 16,815
First Mortgages | Prepayment Speeds | Weighted Average | Discounted cash flow | Loans Held For Sale, Residential Real Estate | Level 3
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Loans held-for-sale, measurement input	0.03	0.03
First Mortgages | Prepayment Speeds | Minimum | Discounted cash flow | Loans Held For Sale, Residential Real Estate | Level 3
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Loans held-for-sale, measurement input	0.02	0.02
First Mortgages | Prepayment Speeds | Maximum | Discounted cash flow | Loans Held For Sale, Residential Real Estate | Level 3
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Loans held-for-sale, measurement input	0.10	0.10
First Mortgages | Loss severity | Weighted Average | Discounted cash flow | Loans Held For Sale, Residential Real Estate | Level 3
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Loans held-for-sale, measurement input	0.17	0.17
First Mortgages | Loss severity | Minimum | Discounted cash flow | Loans Held For Sale, Residential Real Estate | Level 3
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Loans held-for-sale, measurement input	0.03	0.02
First Mortgages | Loss severity | Maximum | Discounted cash flow | Loans Held For Sale, Residential Real Estate | Level 3
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Loans held-for-sale, measurement input	0.25	0.25
HELOC | Prepayment Speeds | Weighted Average | Discounted cash flow | Loans Held For Sale, Residential Real Estate | Level 3
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Loans held-for-sale, measurement input	0.075	0.075
HELOC | Prepayment Speeds | Minimum | Discounted cash flow | Loans Held For Sale, Residential Real Estate | Level 3
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Loans held-for-sale, measurement input	0.05	0.05
HELOC | Prepayment Speeds | Maximum | Discounted cash flow | Loans Held For Sale, Residential Real Estate | Level 3
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Loans held-for-sale, measurement input	0.12	0.12
HELOC | Loss severity | Weighted Average | Discounted cash flow | Loans Held For Sale, Residential Real Estate | Level 3
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Loans held-for-sale, measurement input	0.50	0.50
HELOC | Loss severity | Minimum | Discounted cash flow | Loans Held For Sale, Residential Real Estate | Level 3
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Loans held-for-sale, measurement input	0.50	0.50
HELOC | Loss severity | Maximum | Discounted cash flow | Loans Held For Sale, Residential Real Estate | Level 3
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Loans held-for-sale, measurement input	1	1
Interest- only strips- AFS | Available-for-sale Securities | Level 3
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Securities available-for-sale	$ 13,195	$ 9,902
Interest- only strips- AFS | Constant prepayment rate | Weighted Average | Discounted cash flow | Available-for-sale Securities | Level 3
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Debt securities, available-for-sale, measurement input	0.12	0.11
Interest- only strips- AFS | Bond equivalent yield | Weighted Average | Discounted cash flow | Available-for-sale Securities | Level 3
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Debt securities, available-for-sale, measurement input	0.15	0.14
Interest- only strips- AFS | Bond equivalent yield | Minimum | Discounted cash flow | Level 3
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Debt securities, available-for-sale, measurement input	0.15	0.14
Interest- only strips- AFS | Bond equivalent yield | Maximum | Discounted cash flow | Level 3
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Debt securities, available-for-sale, measurement input	0.16	0.15
Interest- only strips- AFS | Prepayment Speeds | Discounted cash flow | Level 3
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Debt securities, available-for-sale, measurement input	0.12
Interest- only strips- AFS | Prepayment Speeds | Minimum | Discounted cash flow | Level 3
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Debt securities, available-for-sale, measurement input		0.11
Interest- only strips- AFS | Prepayment Speeds | Maximum | Discounted cash flow | Level 3
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Debt securities, available-for-sale, measurement input		0.12

Fair Value of Assets & Liabil_9

Fair Value of Assets & Liabilities - Summary Of Differences Between The Fair Value Carrying Amount Of Mortgages Held-For-Sale And Aggregate Unpaid Principal Amount (Details) - USD ($) $ in Thousands	Mar. 31, 2019	Dec. 31, 2018
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Loans held-for-sale	$ 15,751	$ 16,273
Fair value carrying amount less aggregate unpaid principal - Total loans	(6,817)	(7,294)
Nonaccrual loans	4,382	4,536
Fair value carrying amount less aggregate unpaid principal - Nonaccrual loans	(3,379)	(3,592)
Loans 90 days or more past due and still accruing	0	171
Fair value carrying amount less aggregate unpaid principal - Loans 90 days or more past due and still accruing	0	(110)
Aggregate unpaid principal
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Loans held-for-sale	22,568	23,567
Nonaccrual loans	7,761	8,128
Loans 90 days or more past due and still accruing	$ 0	$ 281

Fair Value of Assets & Liabi_10

Fair Value of Assets & Liabilities - Changes In Fair Value Of Assets And Liabilities Which Fair Value Option Included In Current Period Earnings (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2019	Mar. 31, 2018
Mortgage Banking Noninterest Income | Loans Held-For-Sale
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Changes in fair value included in net income	$ 495	$ 169

Fair Value of Assets & Liabi_11

Fair Value of Assets & Liabilities - Summary Of Book Value And Estimated Fair Value Of Financial Instruments (Details) - USD ($) $ in Thousands		Mar. 31, 2019	Dec. 31, 2018
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total loans, net of unearned income and allowance for loan losses		$ 27,805,137	$ 27,355,108
Short-term financial assets:
Interest-bearing cash			1,277,611
Federal funds sold			237,591
Securities purchased under agreements to resell		474,679	386,443
Trading securities		1,681,727	1,448,168
Loans held-for-sale	[1]	594,662	679,149
Securities available-for-sale		4,616,322	4,626,470
Securities held-to-maturity		10,000	10,000
Derivative assets		118,128	81,475
Other assets:
Total assets		41,099,003	40,832,258
Liabilities:
Trading Liabilities			335,380
Short-term financial liabilities:
Federal funds purchased			256,567
Securities sold under agreements to repurchase		745,788	762,592
Other short-term borrowings			114,764
Term borrowings:
Other long term borrowings		1,177,926	1,170,963
Derivative liabilities		107,123	133,713
Total liabilities		36,252,482	36,046,878
Fair Value, Inputs, Level 3 | FHLB-Cincinnati Stock
Term borrowings:
Restricted investments		63,700	87,900
Fair Value, Inputs, Level 3 | FRB Stock
Term borrowings:
Restricted investments		130,700	130,700
Reported Value Measurement
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total loans, net of unearned income and allowance for loan losses		27,805,137	27,355,108
Short-term financial assets:
Interest-bearing cash		1,013,254	1,277,611
Federal funds sold		167,602	237,591
Securities purchased under agreements to resell		474,679	386,443
Total short-term financial assets		1,655,535	1,901,645
Trading securities		1,681,727	1,448,168
Loans held-for-sale		594,662	679,149
Securities available-for-sale		4,616,322	4,626,470
Securities held-to-maturity		10,000	10,000
Derivative assets		118,128	81,475
Other assets:
Tax credit investments		164,509	163,300
Deferred compensation assets		41,097	37,771
Equity, mutual funds, and other		216,684	240,780
Total other assets		422,290	441,851
Total assets		36,903,801	36,543,866
Liabilities:
Defined maturity		4,454,622	4,105,777
Trading Liabilities		429,669	335,380
Short-term financial liabilities:
Federal funds purchased		339,360	256,567
Securities sold under agreements to repurchase		745,788	762,592
Other short-term borrowings		140,832	114,764
Short Term Financial Liabilities		1,225,980	1,133,923
Term borrowings:
Real estate investment trust-preferred		46,185	46,168
Term borrowings - new market tax credit investment		2,699	2,699
Secured Borrowings		21,119	19,588
Junior subordinated debentures		143,589	143,255
Other long term borrowings		964,334	959,253
Total term borrowings		1,177,926	1,170,963
Derivative liabilities		107,123	133,713
Total liabilities		7,395,320	6,879,756
Reported Value Measurement | Commercial, financial, and industrial
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total loans, net of unearned income and allowance for loan losses		17,072,399	16,415,381
Reported Value Measurement | Commercial Real Estate
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total loans, net of unearned income and allowance for loan losses		3,912,561	3,999,559
Reported Value Measurement | Consumer Real Estate
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total loans, net of unearned income and allowance for loan losses		6,127,430	6,223,077
Reported Value Measurement | Permanent Mortgage
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total loans, net of unearned income and allowance for loan losses		199,179	211,448
Reported Value Measurement | Credit Card and Other
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total loans, net of unearned income and allowance for loan losses		493,568	505,643
Reported Value Measurement | Mortgage loans (elected fair value)
Short-term financial assets:
Loans held-for-sale		15,751	16,273
Reported Value Measurement | Government guaranteed loans (SBA and USDA)
Short-term financial assets:
Loans held-for-sale		495,451	578,291
Reported Value Measurement | Other consumer loans- LOCOM
Short-term financial assets:
Loans held-for-sale		24,238	25,134
Reported Value Measurement | Mortgage loans- LOCOM
Short-term financial assets:
Loans held-for-sale		59,222	59,451
Estimate of Fair Value Measurement
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total loans, net of unearned income and allowance for loan losses		27,901,543	27,364,329
Short-term financial assets:
Interest-bearing cash		1,013,254	1,277,611
Federal funds sold		167,602	237,591
Securities purchased under agreements to resell		474,679	386,443
Total short-term financial assets		1,655,535	1,901,645
Trading securities		1,681,727	1,448,168
Loans held-for-sale		599,533	684,349
Securities available-for-sale		4,616,322	4,626,470
Securities held-to-maturity		9,889	9,843
Derivative assets		118,128	81,475
Other assets:
Tax credit investments		161,355	159,452
Deferred compensation assets		41,097	37,771
Equity, mutual funds, and other		216,684	240,780
Total other assets		419,136	438,003
Total assets		37,001,813	36,554,282
Liabilities:
Defined maturity		4,454,687	4,082,822
Trading Liabilities		429,669	335,380
Short-term financial liabilities:
Federal funds purchased		339,360	256,567
Securities sold under agreements to repurchase		745,788	762,592
Other short-term borrowings		140,832	114,764
Short Term Financial Liabilities		1,225,980	1,133,923
Term borrowings:
Real estate investment trust-preferred		47,000	47,000
Term borrowings - new market tax credit investment		2,678	2,664
Secured Borrowings		21,119	19,588
Junior subordinated debentures		138,947	134,266
Other long term borrowings		967,047	960,483
Total term borrowings		1,176,791	1,164,001
Derivative liabilities		107,123	133,713
Total liabilities		7,394,250	6,849,839
Loan commitments		2,735	2,551
Standby and other commitments		5,052	5,043
Estimate of Fair Value Measurement | Commercial, financial, and industrial
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total loans, net of unearned income and allowance for loan losses		17,166,407	16,438,272
Estimate of Fair Value Measurement | Commercial Real Estate
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total loans, net of unearned income and allowance for loan losses		3,916,819	3,997,736
Estimate of Fair Value Measurement | Consumer Real Estate
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total loans, net of unearned income and allowance for loan losses		6,112,800	6,194,066
Estimate of Fair Value Measurement | Permanent Mortgage
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total loans, net of unearned income and allowance for loan losses		210,387	227,254
Estimate of Fair Value Measurement | Credit Card and Other
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total loans, net of unearned income and allowance for loan losses		495,130	507,001
Estimate of Fair Value Measurement | Mortgage loans (elected fair value)
Short-term financial assets:
Loans held-for-sale		15,751	16,273
Estimate of Fair Value Measurement | Government guaranteed loans (SBA and USDA)
Short-term financial assets:
Loans held-for-sale		500,322	583,491
Estimate of Fair Value Measurement | Other consumer loans- LOCOM
Short-term financial assets:
Loans held-for-sale		24,238	25,134
Estimate of Fair Value Measurement | Mortgage loans- LOCOM
Short-term financial assets:
Loans held-for-sale		59,222	59,451
Estimate of Fair Value Measurement | Fair Value, Inputs, Level 1
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total loans, net of unearned income and allowance for loan losses		0	0
Short-term financial assets:
Interest-bearing cash		1,013,254	1,277,611
Federal funds sold		0	0
Securities purchased under agreements to resell		0	0
Total short-term financial assets		1,013,254	1,277,611
Trading securities		0	0
Loans held-for-sale		0	0
Securities available-for-sale		0	0
Securities held-to-maturity		0	0
Derivative assets		36,976	28,826
Other assets:
Tax credit investments		0	0
Deferred compensation assets		41,097	37,771
Equity, mutual funds, and other		22,326	22,248
Total other assets		63,423	60,019
Total assets		1,113,653	1,366,456
Liabilities:
Defined maturity		0	0
Trading Liabilities		0	0
Short-term financial liabilities:
Federal funds purchased		0	0
Securities sold under agreements to repurchase		0	0
Other short-term borrowings		0	0
Short Term Financial Liabilities		0	0
Term borrowings:
Real estate investment trust-preferred		0	0
Term borrowings - new market tax credit investment		0	0
Secured Borrowings		0	0
Junior subordinated debentures		0	0
Other long term borrowings		0	0
Total term borrowings		0	0
Derivative liabilities		36,688	30,236
Total liabilities		36,688	30,236
Estimate of Fair Value Measurement | Fair Value, Inputs, Level 1 | Commercial, financial, and industrial
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total loans, net of unearned income and allowance for loan losses		0	0
Estimate of Fair Value Measurement | Fair Value, Inputs, Level 1 | Commercial Real Estate
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total loans, net of unearned income and allowance for loan losses		0	0
Estimate of Fair Value Measurement | Fair Value, Inputs, Level 1 | Consumer Real Estate
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total loans, net of unearned income and allowance for loan losses		0	0
Estimate of Fair Value Measurement | Fair Value, Inputs, Level 1 | Permanent Mortgage
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total loans, net of unearned income and allowance for loan losses		0	0
Estimate of Fair Value Measurement | Fair Value, Inputs, Level 1 | Credit Card and Other
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total loans, net of unearned income and allowance for loan losses		0	0
Estimate of Fair Value Measurement | Fair Value, Inputs, Level 1 | Mortgage loans (elected fair value)
Short-term financial assets:
Loans held-for-sale		0	0
Estimate of Fair Value Measurement | Fair Value, Inputs, Level 1 | Government guaranteed loans (SBA and USDA)
Short-term financial assets:
Loans held-for-sale		0	0
Estimate of Fair Value Measurement | Fair Value, Inputs, Level 1 | Other consumer loans- LOCOM
Short-term financial assets:
Loans held-for-sale		0	0
Estimate of Fair Value Measurement | Fair Value, Inputs, Level 1 | Mortgage loans- LOCOM
Short-term financial assets:
Loans held-for-sale		0	0
Estimate of Fair Value Measurement | Fair Value, Inputs, Level 2
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total loans, net of unearned income and allowance for loan losses		0	0
Short-term financial assets:
Interest-bearing cash		0	0
Federal funds sold		167,602	237,591
Securities purchased under agreements to resell		474,679	386,443
Total short-term financial assets		642,281	624,034
Trading securities		1,680,330	1,446,644
Loans held-for-sale		505,408	588,898
Securities available-for-sale		4,603,127	4,616,568
Securities held-to-maturity		0	0
Derivative assets		81,152	52,649
Other assets:
Tax credit investments		0	0
Deferred compensation assets		0	0
Equity, mutual funds, and other		0	0
Total other assets		0	0
Total assets		7,512,298	7,328,793
Liabilities:
Defined maturity		4,454,687	4,082,822
Trading Liabilities		429,669	335,380
Short-term financial liabilities:
Federal funds purchased		339,360	256,567
Securities sold under agreements to repurchase		745,788	762,592
Other short-term borrowings		140,832	114,764
Short Term Financial Liabilities		1,225,980	1,133,923
Term borrowings:
Real estate investment trust-preferred		0	0
Term borrowings - new market tax credit investment		0	0
Secured Borrowings		0	0
Junior subordinated debentures		0	0
Other long term borrowings		967,047	960,483
Total term borrowings		967,047	960,483
Derivative liabilities		41,465	71,937
Total liabilities		7,118,848	6,584,545
Estimate of Fair Value Measurement | Fair Value, Inputs, Level 2 | Commercial, financial, and industrial
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total loans, net of unearned income and allowance for loan losses		0	0
Estimate of Fair Value Measurement | Fair Value, Inputs, Level 2 | Commercial Real Estate
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total loans, net of unearned income and allowance for loan losses		0	0
Estimate of Fair Value Measurement | Fair Value, Inputs, Level 2 | Consumer Real Estate
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total loans, net of unearned income and allowance for loan losses		0	0
Estimate of Fair Value Measurement | Fair Value, Inputs, Level 2 | Permanent Mortgage
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total loans, net of unearned income and allowance for loan losses		0	0
Estimate of Fair Value Measurement | Fair Value, Inputs, Level 2 | Credit Card and Other
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total loans, net of unearned income and allowance for loan losses		0	0
Estimate of Fair Value Measurement | Fair Value, Inputs, Level 2 | Mortgage loans (elected fair value)
Short-term financial assets:
Loans held-for-sale		0	0
Estimate of Fair Value Measurement | Fair Value, Inputs, Level 2 | Government guaranteed loans (SBA and USDA)
Short-term financial assets:
Loans held-for-sale		499,307	582,476
Estimate of Fair Value Measurement | Fair Value, Inputs, Level 2 | Other consumer loans- LOCOM
Short-term financial assets:
Loans held-for-sale		6,101	6,422
Estimate of Fair Value Measurement | Fair Value, Inputs, Level 2 | Mortgage loans- LOCOM
Short-term financial assets:
Loans held-for-sale		0	0
Estimate of Fair Value Measurement | Fair Value, Inputs, Level 3
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total loans, net of unearned income and allowance for loan losses		27,901,543	27,364,329
Short-term financial assets:
Interest-bearing cash		0	0
Federal funds sold		0	0
Securities purchased under agreements to resell		0	0
Total short-term financial assets		0	0
Trading securities		1,397	1,524
Loans held-for-sale		94,125	95,451
Securities available-for-sale		13,195	9,902
Securities held-to-maturity		9,889	9,843
Derivative assets		0	0
Other assets:
Tax credit investments		161,355	159,452
Deferred compensation assets		0	0
Equity, mutual funds, and other		194,358	218,532
Total other assets		355,713	377,984
Total assets		28,375,862	27,859,033
Liabilities:
Defined maturity		0	0
Trading Liabilities		0	0
Short-term financial liabilities:
Federal funds purchased		0	0
Securities sold under agreements to repurchase		0	0
Other short-term borrowings		0	0
Short Term Financial Liabilities		0	0
Term borrowings:
Real estate investment trust-preferred		47,000	47,000
Term borrowings - new market tax credit investment		2,678	2,664
Secured Borrowings		21,119	19,588
Junior subordinated debentures		138,947	134,266
Other long term borrowings		0	0
Total term borrowings		209,744	203,518
Derivative liabilities		28,970	31,540
Total liabilities		238,714	235,058
Estimate of Fair Value Measurement | Fair Value, Inputs, Level 3 | Commercial, financial, and industrial
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total loans, net of unearned income and allowance for loan losses		17,166,407	16,438,272
Estimate of Fair Value Measurement | Fair Value, Inputs, Level 3 | Commercial Real Estate
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total loans, net of unearned income and allowance for loan losses		3,916,819	3,997,736
Estimate of Fair Value Measurement | Fair Value, Inputs, Level 3 | Consumer Real Estate
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total loans, net of unearned income and allowance for loan losses		6,112,800	6,194,066
Estimate of Fair Value Measurement | Fair Value, Inputs, Level 3 | Permanent Mortgage
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total loans, net of unearned income and allowance for loan losses		210,387	227,254
Estimate of Fair Value Measurement | Fair Value, Inputs, Level 3 | Credit Card and Other
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total loans, net of unearned income and allowance for loan losses		495,130	507,001
Estimate of Fair Value Measurement | Fair Value, Inputs, Level 3 | Mortgage loans (elected fair value)
Short-term financial assets:
Loans held-for-sale		15,751	16,273
Estimate of Fair Value Measurement | Fair Value, Inputs, Level 3 | Government guaranteed loans (SBA and USDA)
Short-term financial assets:
Loans held-for-sale		1,015	1,015
Estimate of Fair Value Measurement | Fair Value, Inputs, Level 3 | Other consumer loans- LOCOM
Short-term financial assets:
Loans held-for-sale		18,137	18,712
Estimate of Fair Value Measurement | Fair Value, Inputs, Level 3 | Mortgage loans- LOCOM
Short-term financial assets:
Loans held-for-sale		59,222	59,451
Contractual Amount
Term borrowings:
Loan commitments		11,000,220	10,884,975
Standby and other commitments		$ 404,249	$ 446,958
[1]	March 31, 2019 and December 31, 2018 include $8.0 million and $8.4 million, respectively, of held-for-sale consumer mortgage loans secured by residential real estate in process of foreclosure.

Restructuring, Repositioning,_3

Restructuring, Repositioning, and Efficiency (Details) - 2019 Business Optimization $ in Thousands	3 Months Ended
	Mar. 31, 2019USD ($)
Restructuring Cost and Reserve [Line Items]
Total restructuring and repositioning charges	$ 12,152
Employee Severance
Restructuring Cost and Reserve [Line Items]
Total restructuring and repositioning charges	6,500
Professional fees
Restructuring Cost and Reserve [Line Items]
Total restructuring and repositioning charges	4,300
Employee compensation, incentives and benefits
Restructuring Cost and Reserve [Line Items]
Total restructuring and repositioning charges	6,505
Professional fees
Restructuring Cost and Reserve [Line Items]
Total restructuring and repositioning charges	4,295
Occupancy
Restructuring Cost and Reserve [Line Items]
Total restructuring and repositioning charges	817
Other
Restructuring Cost and Reserve [Line Items]
Total restructuring and repositioning charges	$ 535

Uncategorized Items - fhn-20190

Label	Element	Value
Additional Paid-in Capital [Member]
Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest, Adjusted Balance	us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterestAdjustedBalance1	$ 3,147,613,000
Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest, Adjusted Balance	us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterestAdjustedBalance1	3,029,425,000
Noncontrolling Interest [Member]
Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest, Adjusted Balance	us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterestAdjustedBalance1	295,431,000
Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest, Adjusted Balance	us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterestAdjustedBalance1	295,431,000
Preferred Stock Including Additional Paid in Capital [Member]
Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest, Adjusted Balance	us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterestAdjustedBalance1	95,624,000
Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest, Adjusted Balance	us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterestAdjustedBalance1	95,624,000
Common Stock [Member]
Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest, Adjusted Balance	us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterestAdjustedBalance1	204,211,000
Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest, Adjusted Balance	us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterestAdjustedBalance1	199,108,000
Retained Earnings, Unappropriated [Member]
Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest, Adjusted Balance	us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterestAdjustedBalance1	1,160,712,000
Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest, Adjusted Balance	us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterestAdjustedBalance1	1,541,397,000
Accounting Standards Update 2016-02 [Member]
Cumulative Effect of New Accounting Principle in Period of Adoption	us-gaap_CumulativeEffectOfNewAccountingPrincipleInPeriodOfAdoption	(1,011,000)
Accounting Standards Update 2016-02 [Member] | Retained Earnings, Unappropriated [Member]
Cumulative Effect of New Accounting Principle in Period of Adoption	us-gaap_CumulativeEffectOfNewAccountingPrincipleInPeriodOfAdoption	(1,011,000)
Accounting Standards Update 2016-01 and 2017-12 [Member] | Retained Earnings, Unappropriated [Member]
Cumulative Effect of New Accounting Principle in Period of Adoption	us-gaap_CumulativeEffectOfNewAccountingPrincipleInPeriodOfAdoption	$ 278,000