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Summary of Significant Accounting Policies | 12 Months Ended
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Dec. 31, 2019
Summary of Significant Accounting Policies |
Summary of Significant Accounting Policies | Note 1—Summary of Significant Accounting Policies Nature of Operations South State Corporation (the “Company”) is a bank holding company whose principal activity is the ownership and management of its wholly owned subsidiary, South State Bank (the “Bank”). The Bank operates South State Advisory, Inc. (formerly First Southeast 401k Fiduciaries, Inc.), a wholly-owned registered investment advisor. We merged Minis & Co., Inc., another registered investment advisor that was wholly-owned by the Bank, with and into South State Advisory, Inc. effective January 1, 2019. We will continue to use the name Minis & Company as a Doing Business As (DBA) going forward. The Bank provides general banking services within 29 counties in South Carolina, 9 counties in North Carolina, 17 counties in Georgia and four counties in Virginia. The accounting and reporting policies of the Company and its consolidated subsidiary conform to accounting principles generally accepted in the United States of America (‘U.S. GAAP”). There are 13 unconsolidated subsidiaries of the Company that were established for the purpose of issuing in the aggregate $115.0 million of trust preferred securities, including: SCBT Capital Trust I at $12.0 million; SCBT Capital Trust II at $8.0 million; SCBT Capital Trust III at $20.0 million; TSB Statutory Trust I at $3.0 million; SAVB Capital Trust I at $6.0 million; SAVB Capital Trust II at $4.0 million; Southeastern Bank Financial Statutory Trust I at $10.0 million; Southeastern Bank Financial Statutory Trust II at $10.0 million; Provident Community Bancshares Capital Trust I at $4.0 million; FCRV Statutory Trust I at $5.0 million; Community Capital Statutory Trust I at $10.0 million; CSBC Statutory Trust I at $15.0 million and Provident Community Bancshares Capital Trust II at $8.0 million. Unless otherwise mentioned or unless the context requires otherwise, references herein to "South State," the "Company" "we," "us," "our" or similar references mean South State Corporation and its consolidated subsidiary. References to the “Bank” means South State Bank, a South Carolina banking corporation. Basis of Consolidation The consolidated financial statements include the accounts of the Company and other entities in which it has a controlling financial interest. All significant intercompany balances and transactions have been eliminated in consolidation. Assets held by the Company in trust are not assets of the Company and are not included in the accompanying consolidated financial statements. Segments The Company, through its subsidiary, provides a broad range of financial services to individuals and companies in South Carolina, North Carolina, Georgia and Virginia. These services include demand, time and savings deposits; lending and credit card servicing; ATM processing; mortgage banking services; and wealth management and trust services. While the Company’s decision makers monitor the revenue streams of the various financial products and services, operations are managed and financial performance is evaluated on an organization-wide basis. Accordingly, the Company’s banking and finance operations are not considered by management to constitute more than one reportable operating segment. Use of Estimates The preparation of consolidated financial statements in conformity with accounting principles generally accepted in the United States of America requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities as of the date of the consolidated balance sheet and the reported amounts of revenues and expenses during the reporting period. Actual results could differ from those estimates. Material estimates that are particularly susceptible to significant change in the near term relate to the determination of the allowance for loan losses, fair value of financial instruments, fair values of assets and liabilities acquired in business combinations, loss estimates related to loans and other real estate acquired, evaluating other-than-temporary impairment of investment securities, goodwill impairment tests and valuation of deferred tax assets In connection with the determination of the allowance for loan losses, management has identified specific loans as well as adopted a policy of providing amounts for loan valuation purposes which are not identified with any specific loan but are derived from actual loss experience ratios, loan types, loan volume, economic conditions and industry standards. Management believes that the allowance for loan losses is adequate. While management uses available information to recognize losses on loans, future additions to the allowance may be necessary based on changes in economic conditions. In addition, regulatory agencies, as an integral part of the examination process, periodically review the banking subsidiary’s allowance for loan losses. Such agencies may require additions to the allowance based on their judgments about information available to them at the time of their examination. Concentrations of Credit Risk The Company’s subsidiary grants agribusiness, commercial, and residential loans to customers throughout South Carolina, North Carolina, Virginia and Georgia. Although the subsidiary has a diversified loan portfolio, a substantial portion of their borrowers’ abilities to honor their contracts is dependent upon economic conditions within South Carolina, North Carolina, Virginia, Georgia and the surrounding regions. The Company considers concentrations of credit to exist when, pursuant to regulatory guidelines, the amounts loaned to a multiple number of borrowers engaged in similar business activities which would cause them to be similarly impacted by general economic conditions represents 25% of total risk-based capital, or $375.3 million at December 31, 2019. Based on this criteria, the Company had four such credit concentrations at December 31, 2019, including loans on hotels and motels of $574.6 million, loans to lessors of nonresidential buildings (except mini-warehouses) of $1.4 billion, loans on owner occupied office buildings of $380.5 million and loans to lessors of residential buildings (investment properties and multi-family) of $570.9 million. The risk for these loans and for all loans is managed collectively through the use of credit underwriting practices developed and updated over time. The loss estimate for these loans is determined using our standard ALLL methodology. Cash and Cash Equivalents For the purpose of presentation in the consolidated statements of cash flows, cash and cash equivalents include cash on hand, cash items in process of collection, amounts due from banks, interest bearing deposits with banks, purchases of securities under agreements to resell, and federal funds sold. Due from bank balances are maintained at other financial institutions. Federal funds sold are generally purchased and sold for one-day periods, but may, from time to time, have longer terms. The Company enters from time to time into purchases of securities under agreements to resell substantially identical securities typically for the purpose of obtaining securities on a short-term basis for collateralizing certain customer deposit relationships. Securities purchased under agreements to resell during December 31, 2019 and 2018 consisted of U.S. government-sponsored entities and agency mortgage-backed securities. It is the Company’s policy to take possession of securities purchased under agreements to resell. The securities are delivered into the Company’s account maintained by a third-party custodian designated by the Company under a written custodial agreement that explicitly recognizes the Company’s interest in the securities. The Company monitors the market value of the underlying securities, including accrued interest, which collateralizes the related receivable on agreements to resell. Historically, these agreements were considered to be cash equivalents with maturities of three months or less. The Company held no securities under agreements to resell at December 31, 2019. Investment Securities Debt securities that management has the positive intent and ability to hold to maturity are classified as “held to maturity” and carried at amortized cost. Securities not classified as held to maturity, including equity securities with readily determinable fair values, are classified as “available for sale” and carried at fair value with unrealized gains and losses excluded from earnings and reported in other comprehensive income. Purchase premiums and discounts are recognized in interest income using methods approximating the interest method over the terms of the securities. Declines in the fair value of held-to-maturity and available-for-sale securities below their cost that are deemed to be other than temporary are reflected in earnings as realized losses. Gains and losses realized on sales of securities available for sale are determined using the specific identification method. The Company evaluates securities for other-than-temporary impairment (“OTTI”) at least on a quarterly basis, and more frequently when economic or market concerns warrant such evaluation. In estimating OTTI losses, management considers: (1) the financial condition and near-term prospects of the issuer, (2) the outlook for receiving the contractual cash flows of the investments, (3) the length of time and the extent to which the fair value has been less than cost, (4) the intent and ability of the Company to retain its investment in the issuer for a period of time sufficient to allow for any anticipated recovery in fair value or for a debt security whether it is more-likely-than-not that the Company will be required to sell the debt security prior to recovering its fair value, and (5) the anticipated outlook for changes in the general level of interest rates. (see Note 3—Investment Securities). Other investments include stock acquired for regulatory purposes, investments in unconsolidated subsidiaries and other nonmarketable investment securities. Stock acquired for regulatory purposes include Federal Home Loan Bank of Atlanta (“FHLB”) stock. These securities do not have a readily determinable fair value because their ownership is restricted and they lack a market for trading. As a result, these securities are carried at cost and are periodically evaluated for impairment. Investments in unconsolidated subsidiaries represent a minority investment in SCBT Capital Trust I, SCBT Capital Trust II, SCBT Capital Trust III, TSB Statutory Trust I, SAVB Capital Trust I, SAVB Capital Trust II, Southeastern Bank Financial Statutory Trust I, Southeastern Bank Financial Statutory Trust II, Provident Community Bancshares Capital Trust I, FCRV Statutory Trust I, Community Capital Statutory Trust I, CSBC Statutory Trust I and Provident Community Bancshares Capital Trust II. These investments are recorded at cost and the Company receives quarterly dividend payments on these investments. Other nonmarketable investment securities consists of Business Development Corporation stock and stock in Banker’s Banks. These investments also do not have a readily determinable fair value because their ownership is restricted and they lack a market for trading. As a result, these securities are carried at cost and are periodically evaluated for impairment. Loans Held for Sale Loans originated and intended for sale are carried at the estimated fair value in the aggregate. Estimated fair value is determined on the basis of existing forward commitments, or the current market value of similar loans. Net unrealized losses, if any, are recognized through a valuation allowance by charges to income. Loans held-for-sale are sold to investors either under guaranteed delivery or with the best effort intent and ability to sell loans as long as they meet the underwriting standards of the potential investor. Loans Loans that management has originated and has the intent and ability to hold for the foreseeable future or until maturity or pay-off generally are reported at their unpaid principal balances, less unearned income and net of any deferred loan fees and costs. Unearned income on installment loans is recognized as income over the terms of the loans by methods that generally approximate the interest method. Interest on other loans is calculated by using the simple interest method on daily balances of the principal amount outstanding. We place non-acquired loans and acquired non-credit impaired loans on nonaccrual once reasonable doubt exists about the collectability of all principal and interest due. Generally, this occurs when principal or interest is 90 days or more past due, unless the loan is well secured and in the process of collection. A loan is considered impaired when, in management’s judgment, based on current information and events, it is probable that the Company will be unable to collect the scheduled payments of principal and interest when due according to the contractual terms of the loan agreement. Factors considered by management in determining impairment include payment status, collateral value, and the probability of collecting scheduled principal and interest payments when due. Management determines when loans become impaired through its normal loan administration and review functions. Loans identified as nonaccrual are potentially impaired loans. Loans that experience insignificant payment delays and payment shortfalls generally are not classified as impaired, provided that management expects to collect all amounts due, including interest accrued at the contractual interest rate for the period of delay. Impairment is measured on a loan by loan basis for commercial and construction loans by either the present value of expected future cash flows discounted at the loan’s effective interest rate, the loan’s obtainable market price, or the fair value of the collateral if the loan is collateral dependent. Interest income recognition on non-acquired impaired loans is discontinued when the loans meet the criteria for nonaccrual status described above. Large groups of smaller balance homogeneous non-acquired loans are collectively evaluated for loss and a general reserve is established accordingly. Acquired credit impaired loans are initially recorded at a discount to recognize the difference in the fair value of the loans and the contractual balance. The discount includes a component to recognize the absolute difference between the contractual value and the amount expected to be collected (total cash flow) as well as a component to recognize the net present value of that future amount to be collected. The net present value component is accretable into income, and therefore generates a yield on all acquired credit impaired loans, regardless of past due status. Therefore, acquired credit impaired loans are considered to be accruing loans. Acquired credit impaired loans that are greater than 90 days past due are placed into the greater than 90 days past due and still accruing category when analyzing the aging status of the loan portfolio. See Note 4—Loans and Allowance for Loan Losses for further detail. Troubled Debt Restructurings (“TDRs”) The Bank designates loan modifications as TDRs when, for economic or legal reasons related to the borrower’s financial difficulties, it grants a concession to the borrower that it would not otherwise consider. Loans on nonaccrual status at the date of modification are initially classified as nonaccrual TDRs. Loans on accruing status at the date of modification are initially classified as accruing TDRs at the date of modification, if the note is reasonably assured of repayment and performance is in accordance with its modified terms. Such loans may be designated as nonaccrual loans subsequent to the modification date if reasonable doubt exists as to the collection of interest or principal under the restructuring agreement. Nonaccrual TDRs are returned to accruing status when there is economic substance to the restructuring, there is well documented credit evaluation of the borrower’s financial condition, the remaining balance is reasonably assured of repayment in accordance with its modified terms, and the borrower has demonstrated sustained repayment performance in accordance with the modified terms for a reasonable period of time (generally a minimum of six months). Allowance for Loan Losses The allowance for loan losses is established for estimated loan losses through a provision for loan losses charged to earnings. Loan losses are charged against the allowance when management believes that the collectability of the principal is unlikely. Subsequent recoveries, if any, are credited to the allowance. The allowance for loan losses is evaluated on a regular basis by management and is based upon management’s periodic review of the collectability of the loans in light of historical experience, the nature and volume of the loan portfolio, adverse situations that may affect the borrower’s ability to repay, estimated value of any underlying collateral, and prevailing economic conditions. This evaluation is inherently subjective, as it requires estimates that are susceptible to significant revision as more information becomes available. The allowance consists of general and specific reserves. The general reserves are determined, for loans not identified as impaired, by applying loss percentages to the portfolio that are based on historical loss experience and management’s evaluation and “risk grading” of the loan portfolio. Additionally, the general economic and business conditions affecting key lending areas, credit quality trends, collateral values, loan volumes and concentrations, seasoning of the loan portfolio, the findings of internal and external credit reviews and results from external bank regulatory examinations are included in this evaluation. The specific reserves are determined, for impaired loans, on a loan-by-loan basis based on management’s evaluation of the Company’s exposure for each credit, given the current payment status of the loan and the value of any underlying collateral. Management evaluates nonaccrual loans and TDRs regardless of accrual status to determine whether or not they are impaired. For such loans that are classified as impaired, an allowance is established when the discounted cash flows (or collateral value or observable market price) of the impaired loan is lower than the carrying value of that loan. The Company requires updated appraisals on at least an annual basis for impaired loans that are collateral dependent. Generally, the need for specific reserve is evaluated on impaired loans, and once a specific reserve is established for a loan, a charge off of that amount occurs in the quarter subsequent to the establishment of the specific reserve. Although management uses available information to estimate losses on loans, because of uncertainties associated with local, regional, and national economic conditions, collateral values, and future cash flows on impaired loans, and subjection of the model to the review of regulatory authorities, it is reasonably possible that a material change could occur in the allowance for loan losses in the near term. However, the amount of the change that is reasonably possible cannot be estimated. Other Real Estate Owned Other real estate owned (“OREO”), consisting of properties obtained through foreclosure or through a deed in lieu of foreclosure in satisfaction of loans and property originally acquired for further branch expansion (formerly classified as premises and equipment), is reported at the lower of cost or fair value, determined on the basis of current valuations obtained principally from independent sources, adjusted for estimated selling costs. At the time of foreclosure or initial possession of collateral, any excess of the loan balance over the fair value of the real estate held as collateral is treated as a charge against the allowance for loan losses. Subsequent declines in the fair value of OREO below the new cost basis are recorded through valuation adjustments. Significant judgments and complex estimates are required in estimating the fair value of other real estate, and the period of time within which such estimates can be considered current is significantly shortened during periods of market volatility. In response to market conditions and other economic factors, management may utilize liquidation sales as part of its problem asset disposition strategy. As a result of the significant judgments required in estimating fair value and the variables involved in different methods of disposition, the net proceeds realized from sales transactions could differ significantly from the valuations used to determine the fair value of OREO. Management reviews the value of OREO each quarter and adjusts the values as appropriate. Revenue and expenses from OREO operations as well as gains or losses on sales and any subsequent adjustments to the value are recorded as OREO expense and loan related expense, a component of non-interest expense. Business Combinations and Method of Accounting for Loans Acquired The Company accounts for its acquisitions under Financial Accounting Standards Board (“FASB”) Accounting Standards Codification (“ASC”) Topic 805, Business Combinations, which requires the use of the acquisition method of accounting. All identifiable assets acquired, including loans, are recorded at fair value. No allowance for loan losses related to the acquired loans is recorded on the acquisition date because the fair value of the loans acquired incorporates assumptions regarding credit risk. Loans acquired are recorded at fair value in accordance with the fair value methodology prescribed in FASB ASC Topic 820, Fair Value Measurements and Disclosures. The fair value estimates associated with the loans include estimates related to expected prepayments and the amount and timing of expected principal, interest and other cash flows. Acquired credit-impaired loans are accounted for under the accounting guidance for loans and debt securities acquired with deteriorated credit quality, found in FASB ASC Topic 310-30, Receivables—Loans and Debt Securities Acquired with Deteriorated Credit Quality, and initially measured at fair value, which includes estimated future credit losses expected to be incurred over the life of the loans. Loans acquired in business combinations with evidence of credit deterioration since origination and for which it is probable that all contractually required payments will not be collected are considered to be credit impaired. Evidence of credit quality deterioration as of purchase dates may include information such as past-due and nonaccrual status, borrower credit scores and recent loan to value percentages. The Company considers expected prepayments and estimates the amount and timing of expected principal, interest and other cash flows for each loan or pool of loans meeting the criteria above, and determines the excess of the loan’s scheduled contractual principal and contractual interest payments over all cash flows expected to be collected at acquisition as an amount that should not be accreted (nonaccretable difference). The remaining amount, representing the excess of the loan’s or pool’s cash flows expected to be collected over the fair value for the loan or pool of loans, is accreted into interest income over the remaining life of the loan or pool (accretable yield). In accordance with FASB ASC Topic 310-30, the Company aggregated acquired loans that have common risk characteristics into pools within the following loan categories: commercial real estate, commercial real estate—construction and development, residential real estate, consumer, commercial and industrial, and single pay. Single pay loans consist of those instruments for which repayment of principal and interest is expected at maturity. Loans acquired through business combinations that do not meet the specific criteria of FASB ASC Topic 310-30, but for which a discount is attributable at least in part to credit quality are generally accounted for under this guidance. As a result, related discounts are recognized subsequently through accretion based on the expected cash flow of the acquired loans. Certain acquired loans, such as lines of credit (consumer and commercial) and loans for which there was no discount attributable to credit are accounted for in accordance with FASB ASC Topic 310-20, where the discount is accreted through earnings based on estimated cash flows over the estimated life of the loan. Subsequent to the acquisition date, increases in cash flows expected to be received in excess of the Company’s initial estimates are reclassified from nonaccretable difference to accretable yield and are accreted into interest income on a level-yield basis over the remaining life of the loan. Decreases in cash flows expected to be collected are recognized as impairment through the provision for loan losses. Probable and significant increases in cash flows (in a loan pool where an allowance for acquired loan losses was previously recorded) reduces the remaining allowance for acquired loan losses before recalculating the amount of accretable yield percentage for the loan pool in accordance with ASC 310-30. Premises and Equipment Land is carried at cost. Office equipment, furnishings, and buildings are carried at cost less accumulated depreciation computed principally on the declining-balance and straight-line methods over the estimated useful lives of the assets. Leasehold improvements are amortized on the straight-line method over the shorter of the estimated useful lives of the improvements or the terms of the related leases including lease renewals only when the Company is reasonably assured of the aggregate term of the lease. Additions to premises and equipment and major replacements are added to the accounts at cost. Maintenance and repairs and minor replacements are charged to expense when incurred. Gains and losses on routine dispositions are reflected in current operations. Leases (Topic 842) and Method of Adoption ​ On January 1, 2019, we adopted the requirements of Accounting Standards Update (“ASU”) 2016-02, Leases (Topic 842). Topic 842 was subsequently amended by ASU No. 2018-01, Land Easement Practical Expedient for Transition to Topic 842; ASU No. 2018-10, Codification Improvements to Topic 842, Leases; ASU No. 2018-11, Targeted Improvements; and ASU No. 2019-01, Codification Improvements to Topic 842 Leases. The purpose of the update was to increase transparency and comparability between organizations that enter into lease agreements. The key difference between the previous guidance and the update is the recognition of a right-of-use asset (ROU) and lease liability on the statement of financial position for those leases previously classified as operating leases under the old guidance. Accounting Standards Codification (“ASC”) Topic 842 defines a lease as a contract, or part of a contract, that conveys the right to control the use of identified property, plant, or equipment (an identified asset) for a period of time in exchange for consideration. In applying this standard, we reviewed our material contracts to determine if they included a lease by this new definition and did not identify any new leases. Our lease agreements in which ASC Topic 842 has been applied are primarily for real estate properties, including retail branch locations, operations and administration locations and stand-alone ATM locations. These leases have lease terms from greater than 12 months to leases with options of more than 24 years. Related to lease payment terms, some are fixed payments or based on a fixed annual increases while others are variable and the annual increases are based on market rates. We performed an analysis on equipment leases for the implementation of ASC Topic 842 and determined the number and dollar amount of our equipment leases was not material. ​ A modified retrospective transition approach is required, applying the new standard to all leases existing at the date of initial application. An entity may choose to use either (1) its effective date or (2) the beginning of the earliest comparative period presented in the financial statements as its date of initial application. We chose the transition method of adoption provided by ASU 2018-11, Leases (Topic 842) – Targeted Improvements, where we initially apply the new lease standard at the effective date and recognize a cumulative-effect adjustment to the opening balance of retained earnings in the period of adoption if applicable. Therefore, we applied this standard to all existing leases as of the adoption date of January 1, 2019, recording a ROU asset and a lease liability in an equal amount. We did not have a cumulative-effect adjustment to the opening balance of retained earnings. With this transition method, we did not have to restate comparative prior periods presented in the financial statements related to ASC Topic 842, but will present comparative prior periods disclosures using the previous accounting guidance for leases. This adoption method is considered a change in accounting principle requiring additional disclosure of the nature of and reason for the change, which is solely a result of the adoption of the required standard. ​ ASC Topic 842 provides a package of practical expedients in applying the lease standard that had to be chosen at the date of adoption. We chose to elect this package of practical expedients. With this election, we do not have to reassess whether any expired or existing contracts are or contain a lease, do not have to reassess the classification of any expired or existing leases, do not have to separate lease and non-lease components and can account for both as a single lease component, and do not have to reassess initial direct costs or cash incentives for any existing leases due to immateriality. In addition, we chose not to apply ASC Topic 842 to short-term leases (leases with terms of 12 months or less) and not to record an underlying ROU asset or lease liability based on the uncertainty around the renewal of these leases. We will recognize lease expense for such leases on a straight-line basis over the lease term. ​ ROU assets represent our right to use an underlying asset for the lease term and lease liabilities represent our obligation to make lease payments arising from the lease. We determined that we do not have any leases classified as finance leases and that all of our leases are operating leases. ROU assets and liabilities for operating leases are recognized at commencement date based on present value of lease payments not yet paid, discounted using the discount rate for the lease at the lease commencement date over the lease term. For operating leases, lease expense is determined by the sum of the lease payments to be recognized on a straight-line basis over the lease term. Based on the transition method that we chose to follow, the commencement date of the lease term for all existing leases is January 1, 2019. The lease term used for the calculation of the initial ROU asset and lease liability will include the initial lease term in addition to any renewal options or termination costs in the lease that we think are reasonably certain to be exercised or incurred. We received input from several levels of management and our corporate real estate department in determining which options were reasonably certain to be exercised. A discount rate is also needed in the calculation of the initial ROU assets and lease liability. ASC Topic 842 requires that the implicit rate within the lease agreement be used if available. If not available, we should use its incremental borrowing rate in effect at the time of the lease commencement date. We looked at the incremental borrowing rate from several of our borrowing sources to determine an average rate to be used in the calculation of the initial ROU asset and lease liability. We also considered the term of the borrowings as they relate to the terms of the leases. ​ The adoption of the new standard had a material impact on our consolidated balance sheet, with the recording of ROU asset and lease liability of $82.2 million at the commencement date of January 1, 2019. We did not have a cumulative-effect adjustment to the opening balance of retained earnings at commencement. As of December 31, 2019, we had ROU assets of $87.4 million recorded within premises and equipment on the balance sheet and a lease liability of $88.8 million recorded within other liabilities on the balance sheet. The adoption of ASC Topic 842 did not have a material impact on our consolidated income statement. Bank Owned Life Insurance Bank owned life insurance (BOLI) are comprised of long-term life insurance contracts on the lives of certain current and past employees where the insurance policy benefits and ownership are retained by the employer. Its cash surrender value is an asset that the Company uses to partially offset the future cost of employee benefits. The cash value accumulation on BOLI is permanently tax deferred if the policy is held to the insured person’s death and certain other conditions are met. Intangible Assets Intangible assets consist of goodwill, core deposit intangibles, client list intangibles, and noncompetition agreement (“noncompete”) intangibles that result from the acquisition of other banks or branches from other financial institutions. Core deposit intangibles represent the value of long-term deposit relationships acquired in these transactions. Client list intangibles represent the value of long-term client relationships for the wealth and trust management business. Noncompete intangibles represent the value of key personnel relative to various competitive factors such as ability to compete, willingness or likelihood to compete, and feasibility based upon the competitive environment, and what the Bank could lose from competition. Goodwill represents the excess of the purchase price over the sum of the estimated fair values of the tangible and identifiable intangible assets acquired less the estimated fair value of the liabilities assumed. Goodwill has an indefinite useful life and is evaluated for impairment annually or more frequently if events and circumstances indicate that the asset might be impaired. An impairment loss is recognized to the extent that the carrying amount exceeds the asset’s fair value. The goodwill impairment analysis is a two-step test. The first step, used to identify potential impairment, involves comparing the reporting unit’s estimated fair value to its carrying value, including goodwill. If the estimated fair value of a reporting unit exceeds its carrying value, goodwill assigned to that reporting unit is considered not to be impaired. If the carrying value exceeds estimated fair value, there is an indication of potential impairment and the second step is performed to measure the amount of impairment of goodwill assigned to that reporting unit. If required, the second step involves calculating an implied fair value of goodwill for each reporting unit for which the first step indicated impairment. The implied fair value of goodwill is determined in a manner similar to the amount of goodwill calculated in a business combination, by measuring the excess of the estimated fair value of the reporting unit, as determined in the first step, over the aggregate estimated fair values of the individual assets, liabilities and identifiable intangibles as if the reporting unit was being acquired in a business combination. If the implied fair value of goodwill exceeds the carrying value of goodwill assigned to the reporting unit, there is no impairment. If the carrying value of goodwill assigned to a reporting unit exceeds the implied fair value of the goodwill, an impairment charge is recorded for the excess. An impairment loss cannot exceed the carrying value of goodwill assigned to a reporting unit, and the loss establishes a new basis in the goodwill. Subsequent reversal of goodwill impairment losses is not permitted. Management has determined that the Company has two reporting units. The Company evaluated the carrying value of goodwill as of April 30, 2019, its annual test date, and determined that no impairment charge was necessary. Our stock price has historically traded above its book value and tangible book value. Based on the updated analysis of goodwill as of April 30, 2019 and the fact that our stock price has traded above book value during the third and fourth quarter of 2019, we believe there is no impairment of goodwill as of December 31, 2019. Should our future earnings and cash flows decline, discount rates increase, and/or the market value of our stock decreases, an impairment charge to goodwill and other intangible assets may be required. Core deposit intangibles, included in core deposit and other intangibles, are amortized over the estimated useful lives of the deposit accounts acquired (generally 10 to 13 years) on either (1) the straight-line method or (2) an accelerated basis method which reasonably approximates the anticipated benefit stream from the accounts. The estimated useful lives are periodically reviewed for reasonableness. Noncompete intangibles, included in core deposit and other intangibles are amortized over the life of the underlying noncompete agreements (generally 2 to 3 years) on the straight-line method. The estimated useful lives are periodically reviewed for reasonableness. Client list intangibles, included in core deposit and other intangibles, are amortized over the estimated useful lives of the client lists acquired (generally 15 years) on the straight-line method. The estimated useful lives are periodically reviewed for reasonableness. Mortgage Servicing Rights The Company has a mortgage loan servicing portfolio with related mortgage servicing rights. Mortgage servicing rights (“MSRs”) represent the present value of the future net servicing fees from servicing mortgage loans. Servicing assets and servicing liabilities must be initially measured at fair value, if practicable. For subsequent measurements, an entity can choose to measure servicing assets and liabilities either based on fair value or lower of cost or market. The Company uses the fair value measurement option for MSRs. The methodology used to determine the fair value of MSRs is subjective and requires the development of a number of assumptions, including anticipated prepayments of loan principal. Fair value is determined by estimating the present value of the asset’s future cash flows utilizing estimated market-based prepayment rates and discount rates, interest rates and other economic factors and assumptions validated through comparison to trade information, industry surveys and with the use of independent third party appraisals. Risks inherent in the MSRs valuation include higher than expected prepayment rates and/or delayed receipt of cash flows. The value of MSRs is significantly affected by mortgage interest rates available in the marketplace, which influence mortgage loan prepayment speeds. In general, during periods of declining interest rates, the value of mortgage servicing rights declines due to increasing prepayments attributable to increased mortgage refinance activity. Conversely, during periods of rising interest rates, the value of servicing rights generally increases due to reduced refinance activity. MSRs are carried at fair value with changes in fair value recorded as a component of mortgage banking income each period in the Consolidated Statements of Income. The Company also uses derivative instruments to mitigate the income statement effect of changes in fair value due to changes in valuation inputs and assumptions of its MSRs. Transfer of Financial Assets Transfers of financial assets are accounted for as sales when control over the assets has been surrendered. Control over the transferred assets is deemed to be surrendered when: (1) the assets have been isolated from the Company, (2) the transferee obtains the right (free of conditions that constrain it from taking advantage of that right) to pledge or exchange the transferred assets, and (3) the Company does not maintain effective control over the transferred assets through an agreement to repurchase them before their maturity. The Company reviews all sales of loans by evaluating specific terms in the sales documents and believes that the criteria discussed above to qualify for sales treatment have been met as loans have been transferred for cash and the notes and mortgages for all loans in each sale are endorsed and assigned to the transferee. As stated in the commitment document, the Buyer has no recourse with these loans except in the case of fraud. In certain sales, mortgage servicing rights may be retained and in other programs potential loss exposure from the credit enhancement obligation may be retained, both of which are evaluated and appropriately measured at the date of sale. The Company packages most of the 30 year fixed rate conforming mortgage loans as securities to investors issued through Fannie Mae and sold to third-party investors or sells them to satisfy cash forward mandatory commitments to Fannie Mae. The Company records loan securitizations or cash forwards as a sale when the transferred loans are legally isolated from its creditors and the accounting criteria for a sale are met. Gains or losses recorded on loan securitizations and cash forwards depend in part on the net carrying amount of the loans sold, which is allocated between the loans sold and retained interests based on their relative fair values at the date of sale. The Company generally retains mortgage servicing rights on residential mortgage loans sold in the secondary market. Loans transferred to “held-for-sale” with the intention of disposal through a bulk loan sale will be sold with servicing released. Since quoted market prices are not typically available, the fair value of retained interests is estimated through the services of a third-party service provider to determine the net present value of expected future cash flows. Such models incorporate management’s best estimates of key variables, such as prepayment speeds and discount rates that would be used by market participants and are appropriate for the risks involved. Gains and losses incurred on loans sold to third-party investors are included in mortgage banking income in the Consolidated Statements of Income. Revenue from Contracts with Customers (Topic 606) and Method of Adoption ​ On January 1, 2018, we adopted the requirements of Accounting Standards Update (“ASU”) 2014-09, Revenue from Contracts with Customers (“ASU Topic 606”). The majority of our revenue is derived primarily from interest income from receivables (loans) and securities. Other revenues are derived from fees received in connection with deposit accounts, mortgage banking activities including gains from the sale of loans and loan origination fees, and trust and investment advisory services. The core principle of the new standard is that a company should recognize revenue to depict the transfer of promised goods or services to customers in an amount that reflects the consideration to which the entity expects to be entitled in exchange for those goods or services. ​ The Company adopted ASU Topic 606 using the retrospective transition approach which requires restatement of prior periods. We selected this method even though there were no material changes in the timing of revenue recognition due to the fact that ASU Topic 606 requires us to report network costs associated with debit card and ATM transactions netted against the related fees from such transactions. Previously, such network costs were reported as a component of other noninterest expense. We did restate prior periods for this reclassification. For years 2019, 2018, and 2017, gross interchange and debit card transaction fees totaled $24.5 million, $33.0 million and $35.6 million, respectively while related network costs totaled $11.9 million, $12.1 million and $9.1 million, respectively. On a net basis we reported $12.6 million, $20.9 million and $26.5 million, respectively, as interchange and debit card transactions fees in the accompanying Consolidated Statements of Income as noninterest income for the years ended December 31, 2019, 2018, and 2017. This adoption method is considered a change in accounting principle requiring additional disclosure of the nature of and reason for the change, which is solely a result of the adoption of the required standard. When applying the retrospective approach under ASU Topic 606, the Company has elected, as a practical expedient, to apply the revenue standard only to contracts that are not completed as of January 1, 2018. A completed contract is considered to be a contract for which all (or substantially all) of the revenue was recognized in accordance with revenue guidance that was in effect before January 1, 2018. There were no uncompleted contracts as of January 1, 2018 for which application of the new standard required an adjustment to retained earnings. ​ The following disclosures related to ASU Topic 606 involve income derived from contracts with customers. Within the scope of ASU Topic 606, we maintain contracts to provide services, primarily for investment advisory and/or custody of assets. Through our wholly owned subsidiaries, the Bank, and South State Advisory, Inc., we contract with our customers to perform IRA, Trust, and/or Custody and Agency advisory services. Total revenue recognized from these contracts with customers was $29.2 million and $30.2 million for the years ended December 31, 2019 and 2018. The Bank contracts with our customers to perform deposit account services. Total revenue recognized from these contracts with customers is $76.4 million and $82.6 million for the years ended December 31, 2019 and 2018. Due to the nature of our relationship with the customers that we provide services, we do not incur costs to obtain contracts and there are no material incremental costs to fulfill these contracts that should be capitalized. ​ Disaggregation of Revenue - Our portfolio of services provided to our customers which generates revenue for which the revenue recognition standard applies consists of approximately 731,000 active contracts at December 31, 2019. We have disaggregated revenue according to the timing of the transfer of service. Total revenue derived from contracts in which services are transferred at a point in time was $104.3 million and $113.6 million for the years ended December 31, 2019 and 2018. Total revenue derived from contracts in which services are transferred over time was $19.0 million and $19.2 million for the years ended December 31, 2019 and 2018. Revenue is recognized as the services are provided to the customers. Economic factors impacting the customers could affect the nature, amount, and timing of these cash flows, as unfavorable economic conditions could impair the customers’ ability to provide payment for services. This risk is mitigated as we generally deduct payments from customers’ accounts as services are rendered. ​ Contract Balances - The timing of revenue recognition, billings, and cash collections results in billed accounts receivable on our balance sheet. Most contracts call for payment by a charge or deduction to the respective customer account but there are some that require a receipt of payment from the customer. For fee per transaction contracts, the customers are billed as the transactions are processed. For hourly rate and monthly service contracts related to trust and some investment revenues, the customers are billed monthly (generally as a percentage basis point of the market value of the investment account). In some cases, specific to South State Advisory, Inc., customers are billed in advance for quarterly services to be performed based on the past quarter’s average account balance. These do create contract liabilities or deferred revenue, as the customers pay in advance for service. Neither the contract liabilities nor the accounts receivables balances are material to the Company’s balance sheet. ​ Performance Obligations - A performance obligation is a promise in a contract to transfer a distinct good or service to the customer, and is the unit of account in ASU Topic 606. A contract’s transaction price is allocated to each distinct performance obligation and recognized as revenue when, or as, the performance obligation is satisfied. The performance obligations for these contracts are satisfied as the service is provided to the customer (either over time or at a point in time). The payment terms of the contracts are typically based on a basis point percentage of the investment account market value, fee per hour of service, or fee for service incurred. There are no significant financing components in the contracts. Excluding deposit services revenues which are mostly billed at a point in time as a fee for services incurred, all other contracts within the scope of ASU Topic 606 contain variable consideration in that fees earned are derived from market values of accounts or from hours worked for services performed which determines the amount of consideration to which we are entitled. The variability is resolved when the hours are incurred or services are provided. The contracts do not include obligations for returns, refunds, or warranties. The contracts are specific to the amounts owed to the Company for services performed during a period should the contracts be terminated. ​ Significant Judgments - All of the contracts create performance obligations that are satisfied at a point in time excluding the contracts billed in advance through South State Advisory, Inc. and some immaterial deposit revenues. Revenue is recognized as services are billed to the customers. Variable consideration does exist for contracts related to our trust and investment services as revenues are based on market values and services performed. We have adopted the right-to-invoice practical expedient for trust management contracts through South State Bank which we contract with our customers to perform IRA, Trust, and/or Custody services. Advertising Costs The Company expenses advertising costs as they are incurred and advertising communication costs the first time the advertising takes place. The Company may establish accruals for anticipated advertising expenses within the course of a fiscal year. Comprehensive Income Accounting principles generally require that recognized revenue, expenses, gains and losses be included in net income. Certain changes in assets and liabilities, such as (1) unrealized gains and losses on available-for-sale securities (2) unrealized gains and losses on effective portions of derivative financial instruments accounted for as cash flow hedges and (3) net change in unrecognized amounts related to pension and post-retirement benefits, are reported as a separate component of the equity section of the balance sheet. Such items, along with net income, are components of total comprehensive income (see Consolidated Statements of Comprehensive Income on page F-9). Employee Benefit Plans The Company’s defined benefit pension and other post retirement plans are accounted for in accordance with FASB ASC 715, Compensation—Retirement Benefits, which requires the Company to recognize the funded status in its statement of financial position. See Note 16 for information regarding the defined benefit pension plan and Note 17 for information regarding our post-retirement benefit plans. The expected costs of the plans are being expensed over the period that employees provide service. The Employee Stock Purchase Plan (“ESPP”) allows for a look-back option which establishes the purchase price as an amount based on the lesser of the stock’s market price at the grant date or its market price at the exercise (or purchase) date. For the shares issued in exchange for employee services under the plan, the Company accounts for the plan under the FASB ASC 718, Compensation—Stock Compensation, in which the fair value measurement method is used to estimate the fair value of the equity instruments, based on the share price and other measurement assumptions at the grant date. See Note 18 for the amount the Company recognized as expense for the years ended December 31, 2019, 2018 and 2017. Income Taxes Income taxes are provided for the tax effects of the transactions reported in the accompanying consolidated financial statements and consist of taxes currently due plus deferred taxes related primarily to differences between the tax basis and financial statement basis of gains on acquisitions, available-for-sale securities, allowance for loan losses, write downs of OREO properties, accumulated depreciation, net operating loss carryforwards, accretion income, deferred compensation, intangible assets, mortgage servicing rights, and pension plan and post-retirement benefits. The deferred tax assets and liabilities represent the future tax return consequences of those differences, which will either be taxable or deductible when the assets and liabilities are recovered or settled. Deferred tax assets and liabilities are reflected at income tax rates applicable to the period in which the deferred tax assets or liabilities are expected to be realized or settled. As changes in tax laws or rates are enacted, deferred tax assets and liabilities are adjusted through the provision for income taxes. The Company recognizes interest and penalties accrued relative to unrecognized tax benefits in its respective federal or state income tax accounts. As of December 31, 2019 and 2018, there were no material accruals for uncertain tax positions. The Company and its subsidiaries file a consolidated federal income tax return. Additionally, income tax returns are filed by the Company or its subsidiaries in the state of South Carolina, Georgia, North Carolina, Florida, Virginia, Alabama, and Mississippi. Generally, the Company’s federal and state income tax returns are no longer subject to examination by taxing authorities for years prior to 2016. Earnings Per Share Basic earnings per share (“EPS”) represents income available to common shareholders divided by the weighted-average number of shares outstanding during the year. Diluted earnings per share reflects additional shares that would have been outstanding if dilutive potential shares had been issued. Potential shares that may be issued by the Company relate solely to outstanding stock options, restricted stock and restricted stock units (non-vested shares), and warrants, and are determined using the treasury stock method. Under the treasury stock method, the number of incremental shares is determined by assuming the issuance of stock for the outstanding stock options and warrants, reduced by the number of shares assumed to be repurchased from the issuance proceeds, using the average market price for the year of the Company’s stock. Weighted-average shares for the basic and diluted EPS calculations have been reduced by the average number of unvested restricted shares. Derivative Financial Instruments The Company’s interest rate risk management strategy incorporates the use of a derivative financial instrument, specifically an interest rate swap, to essentially convert a portion of its variable-rate debt to a fixed rate. Cash flows related to variable-rate debt will fluctuate with changes in an underlying rate index. When effectively hedged, the increases or decreases in cash flows related to the variable-rate debt will generally be offset by changes in cash flows of the derivative instrument designated as a hedge. This strategy is referred to as a cash flow hedge. For derivatives designated as hedging exposure to variable cash flows of a forecasted transaction (cash flow hedge), the derivative’s entire gain or loss is initially reported as a component of other comprehensive income and subsequently reclassified into earnings when the forecasted transaction affects earnings or when the hedge is terminated. For derivatives that are not designated as hedging instruments, changes in the fair value of the derivatives are recognized in earnings immediately. The Company also maintains one loan swap which is accounted for as a fair value hedge. This derivative protects the company from interest rate risk caused by changes in the LIBOR curve in relation to a certain designated fixed rate loan. This fair value hedge converts the fixed rate to a floating rate (see Note 27 – Derivative Financial Instruments). The Company’s risk management strategy for its mortgage banking activities incorporates derivative instruments used to hedge both the value of the mortgage servicing rights and the mortgage pipeline. These derivative instruments are not designated as hedges and are not speculative in nature. The derivative instruments that are used to hedge the value of the mortgage servicing rights include financial forwards, futures contracts, and options written and purchased. When-issued securities and mandatory cash forward trades are typically used to hedge the mortgage pipeline. These instruments derive their cash flows, and therefore their values, by reference to an underlying instrument, index or referenced interest rate. The Company’s risk management strategy also incorporates the use of interest rate swap contracts that help in managing interest rate risk within the loan portfolio and foreign currency exchange. These derivatives are not designated as hedges and are not speculative, and result from a service the Company provides to certain customers. The Company executes interest rate swaps with commercial banking customers to facilitate their respective risk management strategies. Those interest rate swaps are simultaneously hedged by offsetting interest rate swaps that the Company executes with a third party, such that the Company minimizes its net risk exposure resulting from such transactions. As the interest rate swaps associated with this program do not meet the strict hedge accounting requirements, changes in the fair value of both the customer swaps and the offsetting swaps are recognized directly in earnings (See Note 27 – Derivative Financial Instruments). By using derivative instruments, the Company is exposed to credit and market risk. If the counterparty fails to perform, credit risk is equal to the fair value gain in a derivative. When the fair value of a derivative contract is positive, this situation generally indicates that the counterparty is obligated to pay the Company, and, therefore, creates a repayment risk for the Company. When the fair value of a derivative contract is negative, the Company is obligated to pay the counterparty and, therefore, has no repayment risk. The Company minimizes the credit risk in derivative instruments by entering into transactions with high-quality counterparties that are reviewed periodically by the Company. The Company’s derivative activities are monitored by its Asset-Liability Management Committee as part of that committee’s oversight of the Company’s asset/liability and treasury functions. The Company’s Asset-Liability Management Committee is responsible for implementing various hedging strategies that are developed through its analysis of data from financial simulation models and other internal and industry sources. The resulting hedging strategies are then incorporated into the overall interest-rate risk management process. The Company recognizes the fair value of derivatives as assets or liabilities in the financial statements. The accounting for the changes in the fair value of a derivative depends on the intended use of the derivative instrument at inception. The change in fair value of the effective portion of cash flow hedges is accounted for in other comprehensive income rather than net income. Changes in fair value of derivative instruments that are not intended as a hedge are accounted for in the net income in the period of the change (see Note 27—Derivative Financial Instruments for further disclosure). Reclassification Certain amounts previously reported have been reclassified to conform to the current year’s presentation. Such reclassifications had no effect on net income and shareholders’ equity. Subsequent Events The Company has evaluated subsequent events for accounting and disclosure purposes through the date the financial statements are issued. See Note 30- Subsequent Events for further information. ​ ​ Recent Accounting and Regulatory Pronouncements Accounting Standards Adopted in 2019 In February 2016, the Financial Accounting Standards Board (“FASB”) issued ASC Topic 842 related to leases. ASC Topic 842 applies a right-of-use, which we refer to herein as ROU, model that requires a lessee to record, for all leases with a lease term of more than 12 months, an asset representing its right to use the underlying asset and a liability to make lease payments. For leases with a term of 12 months or less, a practical expedient is available whereby a lessee may elect, by class of underlying asset, not to recognize an ROU asset or lease liability. At inception, lessees must classify all leases as either finance or operating based on five criteria. Balance sheet recognition of finance and operating leases is similar, but the pattern of expense recognition in the income statement, as well as the effect on the statement of cash flows, differs depending on the lease classification. In July 2018, ASU 2018-11 - Targeted Improvements - Leases (Topic 842) (“ASU 2018-11”) was issued which provided targeted improvements related to ASC Topic 842. ASU 2018-11 updates the new lease standard ASC Topic 842 by providing another transition method in addition to the existing transition method by allowing entities to initially apply the new leases standard at the adoption date instead of at the beginning of the earliest period presented in the financial statements as required in the original pronouncement. ASU 2018-11 also provides updated guidance for lessors related to separating lease and nonlease components in a contract and allocating the consideration in the contract to the separate components. In December 2018, the FASB issued ASU No. 2018-20, Leases (Topic 842): Narrow-Scope Improvements for Lessors (“ASU 2018-20”). ASU 2018-20 updates the new lease standard ASC Topic 842 by addressing several issues related to lessors which should reduce lessors’ implementation and ongoing costs related to the new lease standard. In March 2019, the FASB issued ASU No. 2019-01, Leases (Topic 842): Codification Improvements (“ASU 2019-01”). ASU 2019-01 provides clarification on several issues related to ASC Topic 842. None of these issues had a material effect on our financial statements. For public business entities, the amendments in ASU 2016-02, ASU 2018-11, ASU 2018-20 and ASU 2019-01 are effective for interim and annual periods beginning after December 15, 2018. In transition, lessees and lessors have the choice to recognize and measure leases at the beginning of the earliest period presented in financials using a modified retrospective approach or to allow the entity to recognize and measure leases as of the adoption date and not in comparative periods. We chose the option to recognize and measure leases as of the adoption date and not in comparative periods. See Note 1 – Summary of Significant Accounting Policies and Note 20 – Lease Commitments for further discussion around the adoption of these standards related to leases. On January 1, 2019, we recorded a ROU asset and a lease liability of approximately $82.2 million. The guidance did not have a material impact on our consolidated income statement. ​ In October 2018, the FASB issued ASU No. 2018-16, Inclusion of the Secured Overnight Financing Rate (SOFR) Overnight Index Swap (OIS) Rate as a Benchmark Interest Rate for Hedge Accounting Purposes (Derivatives and Hedging - Topic 815) (“ASU 2018-16”). The amendments in this ASU permit the OIS rate based on SOFR as a U.S. benchmark interest rate. Including the OIS rate based on SOFR as an eligible benchmark interest rate during the early stages of the marketplace transition provides sufficient lead time for entities to prepare for changes to interest rate risk hedging strategies for both risk management and hedge accounting purposes. The guidance is effective for public companies for annual periods beginning on or after December 15, 2018 and interim periods within those fiscal years. Early adoption is permitted. All transition requirements and elections should be applied to hedging relationships existing on the date of adoption. This guidance became effective on January 1, 2019 and did not have a material impact to our consolidated financial statements. ​ In August 2018, the FASB issued ASU No. 2018-15, Customer’s Accounting for Implementation Costs Incurred in a Cloud Computing Arrangement That Is a Service Contract (Subtopic 350-40) (“ASU 2018-15”). This ASU clarifies certain aspects of ASU 2015-05, Customer’s Accounting for Fees Paid in a Cloud Computing Arrangement, which was issued in April 2015. Specifically, ASU 2018-15 “align[s] 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).” This ASU does not affect the accounting for the service element of a hosting arrangement that is a service contract. An entity would expense the capitalized implementation costs related to a hosting arrangement that is a service contract over the hosting arrangement’s term, which comprises the arrangement’s noncancelable term and any renewal options whose exercise is reasonably certain. The expense would be presented in the same line item in the statement of income as that in which the fee associated with the hosting arrangement is presented. For public business entities, the amendments in ASU 2018-15 are effective for interim and annual periods beginning after December 15, 2019 and an entity has the option of using either a retrospective or prospective transition method. Early adoption is permitted. We early adopted this standard as of January 1, 2019, but it did not have a material impact on our consolidated financial statements. There were $1.3 million in capitalized implementation costs in 2019 related to internal use software of which $1.1 million was related to a new commercial loan platform and $171,000 was related to a front capture software product for administering customer banking transactions at branch locations. These costs are being held in a suspense account classified as other assets on the balance sheet until the project is complete when they will then begin to be depreciated. ​ In August 2017, the FASB issued ASU No. 2017-12, Derivatives and Hedging (Topic 815): Targeted Improvements to Accounting for Hedging Activities (“ASU 2017-12”). ASU 2017-12 amends ASU 2018-16 to better align an entity’s risk management activities and financial reporting for hedging relationships through changes to both the designation and measurement guidance for qualifying hedging relationships and the presentation of hedge results. These amendments will improve the transparency of information about an entity’s risk management activities and simplify the application of hedge accounting. The guidance is effective for public companies for annual periods beginning on or after December 15, 2018 and interim periods within those fiscal years. All transition requirements and elections should be applied to hedging relationships existing on the date of adoption. This guidance became effective on January 1, 2019 and we determined that the implementation of this standard did not have a material impact to our consolidated financial statements. In March 2017, the FASB issued ASU No. 2017-08, Receivables-Nonrefundable Fees and Other Cost (Subtopic 310-20): Premium Amortization on Purchased Callable Debt Securities; (“ASU 2017-08”). ASU 2017-08 shortens the amortization period of the premium for certain callable debt securities, from the contractual maturity date to the earliest call date. The amendments do not require an accounting change for securities held at a discount; an entity will continue to amortize to the contractual maturity date the discount related to callable debt securities. The amendments apply to the amortization of premiums on callable debt securities with explicit, noncontingent call features that are callable at fixed prices on preset dates. For public business entities, ASU 2017-08 is effective in fiscal years beginning after December 15, 2018, including interim periods within those fiscal years. For entities other than public business entities, the amendments are effective in fiscal years beginning after December 15, 2019 and in interim periods in fiscal years beginning after December 15, 2020. Early adoption is permitted for all entities, including in an interim period. The amendments should be applied on a modified retrospective basis, with a cumulative-effect adjustment to retained earnings as of the beginning of the first reporting period in which the amendments are adopted. This guidance became effective on January 1, 2019 and we determined that the implementation of this standard did not have a material impact to our consolidated financial statements. Issued But Not Yet Adopted Accounting Standards In December 2019, the FASB issued ASU No. 2019-12, Income Taxes (Topic 740) – Simplifying the Accounting for Income Taxes. The amendments in this update simplify the accounting for income taxes by removing certain exceptions to the general principles in Topic 740. The amendments also improve consistent application of and simplify GAAP for other areas of Topic 740 by clarifying the amending existing guidance. This guidance is effective for interim and annual reporting periods beginning after December 15, 2020. Early adoption is permitted. The amendments in this update related to changes in ownership of foreign equity method investments or foreign subsidiaries should be applied on a modified retrospective basis through a cumulative-effect adjustment to retained earnings as of the beginning of the fiscal year of adoption. The amendments related to franchise taxes that are partially based on income should be applied on either a retrospective basis for all periods presented or a modified retrospective basis through a cumulative-effect adjustment to retained earnings as of the beginning of the fiscal year of adoption. All other amendments should be applied on a prospective basis. We do not believe this update will have a material impact on our consolidated financial statements. ​ In November 2019, the FASB issued ASU No. 2019-11, Codification Improvements to Topic 326, Financial Instruments-Credit Losses, Topic 815. This update, related to ASU 2016-01, clarifies certain aspects brought to the Account Standards Board attention by stakeholders related to these ASUs, but does not change the core principles of these standards. The areas of improvement clarified in this update are related to 1) Expected recoveries for purchased financial assets with credit deterioration, 2) Transition relief for troubled debt restructurings, 3) Disclosures related to accrued interest receivables, 4) Financial assets secured by collateral maintenance provisions and 5) Conforming amendment to Subtopic 805-20. This clarifications will be adopted in the first quarter of 2020 when the overall standard will be adopted. This clarification related to ASU 2016-13 is still being evaluated as are the effects of the overall standard on our consolidated financial statements. ​ In April 2019, the FASB issued ASU No. 2019-05, Targeted Transition Relief (Topic 326 – Financial Instruments-Credit Losses). This update provides entities that have certain instruments within the scope of Subtopic 326-20, Financial Instruments—Credit Losses— Measured at Amortized Cost, with an option to irrevocably elect the fair value option in Subtopic 825-10 applied on an instrument-by-instrument basis for eligible instruments, upon adoption of Topic 326. The fair value option election does not apply to held-to-maturity debt securities. An entity that elects the fair value option should subsequently apply the guidance in Subtopics 820-10, Fair Value Measurement—Overall, and 825-10. This guidance is effective for interim and annual reporting periods beginning after December 15, 2019, including interim periods within those fiscal years. Early adoption is permitted. Entities will apply the standard’s provisions as a cumulative-effect adjustment to retained earnings as of the beginning of the first reporting period in which the overall guidance is adopted. ​ In April 2019, the FASB issued ASU No. 2019-04, Codification Improvements to Topic 326, Financial Instruments-Credit Losses, Topic 815, Derivatives and Hedging, and Topic 825, Financial Instruments. This update related to ASU 2016-01, ASU 2017-12 and ASU 2016-13 clarifies certain aspects brought to the Account Standards Board attention by stakeholders related to these ASUs, but does not change the core principles of these standards. The clarifications related to ASU 2016-01 and 2017-12 were be adopted the second quarter of 2019 since these standards have already been adopted. The clarifications related to ASU 2016-13 will be adopted in the first quarter of 2020 when the overall standard will be adopted. The clarification related to ASU 2016-01 and ASU 2017-12 did not have a material impact on our consolidated financial statements. The clarification related to ASU 2016-13 is still being evaluated as are the effects of the overall standard on our consolidated financial statements. ​ In August 2018, the FASB issued ASU No. 2018-14, Disclosure Framework-Changes to the Disclosure Requirements for Defined Benefit Plans (Subtopic 715-20) (“ASU 2018-14”). ASU 2018-14 amends ASC 715-20 to add, remove, and clarify disclosure requirements for employers that sponsor defined benefit pension or other postretirement plans. For public business entities, ASU 2018-14 is effective for fiscal years ending after December 15, 2020 and requires entities to apply the amendment on a retrospective basis. Early adoption is permitted. At this point in time, we do not expect that this guidance will have a material impact on our consolidated financial statements. ​ In August 2018, the FASB issued ASU No. 2018-13, Disclosure Framework-Changes to the Disclosure Requirements for Fair Value Measurement (Topic 820) (“ASU 2018-13”). ASU 2018-13 removes, modifies, and adds certain disclosure requirements in ASC 820 related to Fair Value Measurement on the basis of the concepts in the FASB Concepts Statement Conceptual Framework for Financial Reporting — Chapter 8: Notes to Financial Statements. ASU 2018-13 is effective for all entities for fiscal years beginning after December 15, 2019, including interim periods therein. Early adoption is permitted upon issuance of this ASU, including in any interim period for which financial statements have not yet been issued or made available for issuance. Entities making this election are permitted to early adopt the eliminated or modified disclosure requirements and delay the adoption of all the new disclosure requirements until their effective date. The ASU requires application of the prospective method of transition (for only the most recent interim or annual period presented in the initial fiscal year of adoption) to the new disclosure requirement additions. The ASU also requires prospective application to any modifications to disclosures made because of the change to the requirements for the narrative description of measurement uncertainty. The effects of all other amendments made by the ASU must be applied retrospectively to all periods presented. We do not believe this will have a material impact on our consolidated financial statements. ​ In January 2017, the FASB issued ASU No. 2017-04, Intangible-Goodwill and other (Topic 350): Simplifying the Test for Goodwill Impairment (“ASU 2017-04”). ASU 2017-04 simplifies the accounting for goodwill impairment for all entities by requiring impairment charges to be based on the first step in today’s two-step impairment test under ASC Topic 350 and eliminating Step 2 from the goodwill impairment test. As amended, the goodwill impairment test will consist of one step comparing the fair value of a reporting unit with its carrying amount. An entity should recognize a goodwill impairment charge for the amount by which the carrying amount exceeds the reporting unit’s fair value. The guidance is effective for public business entities for fiscal years beginning after December 15, 2019, and interim periods within those years. The amendments should be adopted prospectively and early adoption is permitted for interim or annual goodwill impairment tests performed on testing dates after January 1, 2017. We do not believe it will have a material impact on our consolidated financial statements. ​ In June 2016, the FASB issued ASU No. 2016-13, Financial Instruments-Credit Losses (Topic 326): Measurement of Credit Losses on Financial Instruments (“ASU 2016-13”). ASU 2016-13 requires an entity to utilize a new impairment model known as the current expected credit loss (“CECL”) model to estimate its lifetime “expected credit loss” and record an allowance for credit losses (“ACL”) that, when deducted from the amortized cost basis of the financial asset, presents the net amount expected to be collected on the financial asset. The CECL model is expected to result in earlier recognition of credit losses for loans, investment securities portfolio, and purchased financial assets with credit deterioration. We do not expect this standard to have a material impact on our investment securities portfolio at implementation. ASU 2016-13 also will require enhanced disclosures. The new guidance is effective for interim and annual reporting periods beginning after December 15, 2019, including interim periods within those fiscal years. Early adoption is permitted. We have adopted the new standard as of January 1, 2020. Entities will apply the standard’s provisions as a cumulative-effect adjustment to retained earnings as of the beginning of the first reporting period in which the guidance is adopted. A cross-functional working group comprised of individuals from credit administration, risk management, accounting and finance, information technology, among others were in place to implement and develop the data, forecast, processes, and portfolio segmentation that are used in the models that estimate the expected credit loss for our ten loan segments. Estimating the ACL involves a high degree of management judgment and our process for determining an appropriate ACL may result in a range of estimates for expected credit losses. Our ACL will be management’s best estimate within the range of expected credit losses. We have determined a baseline model result for each loan segment based upon our 10 years of historical losses. All credit models and the aggregator model have been validated and approved for use by the Model Risk Management Committee of the Company. Management should consider the need to qualitatively adjust expected credit loss estimates for information not already captured in the models developed to estimate losses. As a result, Management has developed a qualitative framework and has considered certain qualitative factors that are relevant to the estimate as of January 1, 2020. The Company has implemented a third party vendor solution (aggregator model) to assist us in aggregating the results of the credit models and provide us with macroeconomic forecasts for our loan portfolio markets. This standard requires estimating projected lifetime credit losses based on information about past events, including historical experience, current conditions, reasonable and supportable macro-economic forecast assumptions and certain management judgements over the life of the loans. Under our baseline scenario, we currently estimate that our allowance under CECL will be in a range of $105 million to $120 million, including the liability for unfunded commitments, increasing roughly $35 million to $50 million. The estimated decline in equity, net of tax, will range from $33.5 million to $45.2 million. This estimate is influenced by the composition, characteristics and quality of our loan portfolio, as well as the economic conditions and forecasts as of each reporting period. These economic conditions and forecasts could be significantly different in future periods. The impact of the change in the allowance on our results of operations in a provision for credit losses will depend on the current period net charge-offs, level of loan originations, and change in mix of the loan portfolio.

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