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Financial Information (Tables) | 9 Months Ended
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Sep. 30, 2020
Organization, Consolidation and Presentation of Financial Statements [Abstract] |
Schedule of Adoption Adjustments | Based on its implementation efforts, FHN recorded the following adoption adjustments effective January 1, 2020.
(Dollars in thousands) |  | January 1, 2020
Loans and leases (a) |  | $ | 2,980 |
Allowance for loan and lease losses |  | (106,394) |
Other assets (deferred taxes) |  | 31,330 |
Total assets |  | $ | (72,084) |
Other liabilities (unfunded commitments) |  | $ | 23,973 |
Undivided profits |  | (96,057) |
Total liabilities and equity |  | $ | (72,084) |
(a) The effect on loans represents the increase in amortized cost for recognition of the allowance for credit losses on PCD loans.

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- Definition Tabular disclosure of changes in accounting principles, including adoption of new accounting pronouncements, that describes the new methods, amount and effects on financial statement line items. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 250 -SubTopic 10 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=109234566&loc=d3e22499-107794 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 270 -SubTopic 10 -Section 45 -Paragraph 13 -URI http://asc.fasb.org/extlink&oid=116846552&loc=d3e765-108305 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 270 -SubTopic 10 -Section 45 -Paragraph 12 -URI http://asc.fasb.org/extlink&oid=116846552&loc=d3e725-108305 Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 250 -SubTopic 10 -Section 50 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=109234566&loc=d3e22583-107794 + Details
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