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Variable Interest Entities (Tables) | 12 Months Ended
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Dec. 31, 2018
Variable Interest Entities [Abstract] |
Summary Of VIEs Consolidated By FHN | The following table summarizes VIEs consolidated by FHN as of December 31, 2018 and December 31, 2017:
|  | December 31, 2018 |  | December 31, 2017
|  | 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 |  | 16,213 |  |  | N/A |  |  | 24,175 |  |  | N/A |
Less: Allowance for loan losses |  | — |  |  | N/A |  |  | — |  |  | N/A |
Total net loans |  | 16,213 |  |  | N/A |  |  | 24,175 |  |  | N/A |
Other assets |  | 35 |  |  | $ | 78,446 |  |  | 47 |  |  | $ | 80,479 |
Total assets |  | $ | 16,248 |  |  | $ | 78,446 |  |  | $ | 24,222 |  |  | $ | 80,479 |
Liabilities: |  |  |  |  |  |  |  |
Term borrowings |  | $ | 2,981 |  |  | N/A |  |  | $ | 11,226 |  |  | N/A |
Other liabilities |  | — |  |  | $ | 56,700 |  |  | 2 |  |  | $ | 61,733 |
Total liabilities |  | $ | 2,981 |  |  | $ | 56,700 |  |  | $ | 11,228 |  |  | $ | 61,733 |
Summary of the Impact of Qualifying LIHTC Investments | The following table summarizes the impact to the Provision/(benefit) for income taxes on the Consolidated Statements of Income for the years ended December 31, 2018, 2017 and 2016 for LIHTC investments accounted for under the proportional amortization method.
(Dollars in thousands) |  | 2018 |  | 2017 |  | 2016
Provision/(benefit) for income taxes: |  |  |  |  |  |
Amortization of qualifying LIHTC investments (a) |  | $ | 10,793 |  |  | $ | 14,037 |  |  | $ | 14,223 |
Low income housing tax credits |  | (10,232 | ) |  | (11,037 | ) |  | (10,100 | )
Other tax benefits related to qualifying LIHTC investments |  | (7,370 | ) |  | (5,045 | ) |  | (9,779 | )
(a) 2017 reflects increased amortization due the effects of the Tax Act.
Summary Of VIEs Not Consolidated By FHN | 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.
The following table summarizes FHN’s nonconsolidated VIEs as of December 31, 2017:
(Dollars in thousands) |  | Maximum Loss Exposure |  | Liability Recognized |  | Classification
Type: |  |  |  |  |  |
Low income housing partnerships |  | $ | 94,798 |  |  | $ | 33,348 |  |  | (a)
Other tax credit investments (b) (c) |  | 20,394 |  |  | — |  |  | Other assets
Small issuer trust preferred holdings (d) |  | 332,455 |  |  | — |  |  | Loans, net of unearned income
On-balance sheet trust preferred securitization |  | 48,817 |  |  | 65,357 |  |  | (e)
Proprietary residential mortgage securitizations |  | 2,151 |  |  | — |  |  | Trading securities
Holdings of agency mortgage-backed securities (d) |  | 5,349,287 |  |  | — |  |  | (f)
Commercial loan troubled debt restructurings (g) |  | 19,411 |  |  | — |  |  | Loans, net of unearned income
Sale-leaseback transaction |  | 14,827 |  |  | — |  |  | (h)
Proprietary trust preferred issuances (i) |  | — |  |  | 212,378 |  |  | Term borrowings
(a) | Maximum loss exposure represents $61.5 million of current investments and $33.3 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, $18.0 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 $65.4 million classified as Term borrowings.
(f) | Includes $.5 billion classified as Trading securities and $4.8 billion classified as Securities available-for-sale.
(g) | Maximum loss exposure represents $19.1 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 less amounts received from the buyer-lessor.
(i) | No exposure to loss due to nature of FHN's involvement.

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