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Organization and Basis of Presentation (Policies) | 9 Months Ended
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Sep. 30, 2022
Organization and Basis of Presentation |
Organization and Basis of Presentation | ​ First Hawaiian, Inc. (“FHI” or the “Parent”), a bank holding company, owns 100% of the outstanding common stock of First Hawaiian Bank (“FHB” or the “Bank”), its only direct, wholly owned subsidiary. FHB offers a comprehensive suite of banking services, including loans, deposit products, wealth management, insurance, trust, retirement planning, credit card and merchant processing services, to consumer and commercial customers. ​ The accompanying unaudited interim consolidated financial statements of First Hawaiian, Inc. and Subsidiary (the “Company”) have been prepared in accordance with generally accepted accounting principles in the United States of America (“GAAP”) for interim financial information and with the instructions to Form 10-Q and Article 10 of Regulation S-X. Accordingly, certain information and footnote disclosures normally included in financial statements prepared in accordance with GAAP have been condensed or omitted pursuant to such rules and regulations. ​ The accompanying unaudited interim consolidated financial statements and notes thereto should be read in conjunction with the Company’s audited consolidated financial statements and related notes included in the Company’s Annual Report on Form 10-K for the year ended December 31, 2021. ​ In the opinion of management, all adjustments, which consist of normal recurring adjustments necessary for a fair presentation of the interim period consolidated financial information, have been made. Results of operations for interim periods are not necessarily indicative of results to be expected for the entire year. Intercompany account balances and transactions have been eliminated in consolidation.
Use of Estimates in the Preparation of Financial Statements | Use of Estimates in the Preparation of Financial Statements ​ The preparation of consolidated financial statements in conformity with GAAP requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities and disclosure of contingent assets and liabilities at the date of the financial statements and the reported amounts of revenues and expenses during the reporting period. Management bases its estimates on historical experience and various other assumptions believed to be reasonable. Although these estimates are based on management’s best knowledge of current events, actual results may differ from these estimates. ​
Investment Securities | Investment Securities ​ As of September 30, 2022 and December 31, 2021, investment securities were comprised primarily of debt securities, mortgage-backed securities and collateralized mortgage obligations issued by the U.S. Government, its agencies and government-sponsored enterprises, with under 4% of the investment securities comprised of collateralized loan obligations rated AA or better and obligations issued by local state and political subdivisions rated AA or better. The Company amortizes premiums and accretes discounts using the interest method over the expected lives of the individual securities. Premiums on callable debt securities are amortized to their next call date. All investment securities transactions are recorded on a trade-date basis. ​ As of September 30, 2022, the Company’s investment securities were categorized as either available-for-sale (investment securities that may be sold before maturity at the discretion of management) or held-to-maturity (investment securities that management has the positive intent and ability to hold to maturity). As of December 31, 2021, all of the Company’s investment securities were categorized as available-for-sale. Available-for-sale investment securities are reported at fair value, with unrealized gains and losses reported in accumulated other comprehensive income. Gains and losses realized on sales of available-for-sale investment securities are determined using the specific identification method. Held-to-maturity investment securities are reported at amortized cost and may have a realized gain or loss if the investment security is retired or redeemed before the original maturity date. ​ Transfers of debt securities from the available-for-sale category to the held-to-maturity category are made at fair value at the date of transfer. The unrealized holding gain or loss at the date of transfer remains in accumulated other comprehensive income and in the carrying value of the held-to-maturity investment security. Premiums or discounts on investment securities are amortized or accreted as an adjustment of yield using the interest method over the expected life of the security. Unrealized holding gains or losses that remain in accumulated other comprehensive income are also amortized or accreted over the expected life of the security as an adjustment of yield, offsetting the related amortization of the premium or accretion of the discount. ​ For available-for-sale debt securities in an unrealized loss position, the Company first assesses whether it intends to sell, or it is more likely than not that it will be required to sell the security before recovery of its amortized cost basis. If either of the criteria regarding intent or requirement to sell is met, the security’s amortized cost basis is written down to fair value through income. For available-for-sale debt securities that do not meet the aforementioned criteria, the Company evaluates at the individual security level whether the decline in fair value has resulted from credit losses or other factors. In making this assessment, management considers the extent to which fair value is less than amortized cost and adverse conditions specifically related to the security, among other factors. If this assessment indicates that a credit loss exists, the present value of cash flows expected to be collected from the security is compared to the amortized cost basis of the security. If the present value of cash flows expected to be collected is less than the amortized cost basis, a credit loss exists and an allowance for credit losses is recorded for the credit loss, limited by the amount that the fair value is less than the amortized cost basis. Any impairment that has not been recorded through an allowance for credit losses is recognized in other comprehensive income. ​ For held-to-maturity debt securities, the Company utilizes the Current Expected Credit Loss (“CECL”) approach to estimate lifetime expected credit losses. The allowance for credit losses is a valuation account that is deducted from the amortized cost basis of held-to-maturity debt securities to present the net amount expected to be collected from held-to-maturity debt securities. ​ Changes in the allowance for credit losses, if any, are recorded as a provision for (or reversal of) credit losses. Losses are charged against the allowance when management believes the uncollectibility of an available-for-sale or held-to-maturity investment security is confirmed or when either of the criteria regarding intent or requirement to sell an available-for-sale investment security is met. Expected recoveries do not exceed the aggregate of amounts previously charged-off and expected to be charged-off. As of September 30, 2022, the Company’s available-for-sale and held-to-maturity investment securities were comprised primarily of debt securities, mortgage-backed securities and collateralized mortgage obligations issued by the U.S. Government, its agencies and government-sponsored enterprises. Management has concluded that the long history with no credit losses from these issuers indicates an expectation that nonpayment of the amortized cost basis is zero, and these securities are explicitly or implicitly fully guaranteed by the U.S. government. The U.S. government can print its own currency and its currency is routinely held by central banks and other major financial institutions. The dollar is used in international commerce, and commonly is viewed as a reserve currency, all of which qualitatively indicates that historical credit loss information should be minimally affected by current conditions and reasonable and supportable forecasts. Under 4% of the investment securities were comprised of collateralized loan obligations rated AA or better and obligations issued by local state and political subdivisions rated AA or better. These securities are investment grade and highly rated and carry either sufficient credit enhancement or days cash on hand to support timely payments of principal and interest. As a result, the Company does not expect any future payment defaults and has not recorded an allowance for credit losses for its available-for-sale and held-to-maturity debt securities as of September 30, 2022. Similarly, for the same reasons noted above, the Company did not record an allowance for credit losses for its available-for-sale debt securities as of December 31, 2021. ​ Accrued interest receivable related to available-for-sale and held-to-maturity investment securities are recorded separately from the amortized cost basis of investment securities on the Company’s unaudited interim consolidated balance sheets.
Accounting Standards Adopted in 2022 | Accounting Standards Adopted in 2022 ​ In July 2021, the Financial Accounting Standards Board (“FASB”) issued Accounting Standards Update (“ASU”) No. 2021-05, Leases (Topic 842), Lessors – Certain Leases with Variable Lease Payments. This guidance amends the Topic 842 lease classification requirements for lessors to align them with practice under Topic 840. Lessors should classify and account for a lease with variable lease payments that do not depend on a reference index or a rate as an operating lease if both of the following criteria are met: 1) the lease would have been classified as a sales-type lease or a direct financing lease in accordance with the Topic 842 lease classification criteria, and 2) the lessor would have otherwise recognized a day-one loss. The Company adopted the provisions of ASU No. 2021-05 on January 1, 2022 and it did not have a material impact on the Company’s consolidated financial statements.
Recent Accounting Pronouncements | Recent Accounting Pronouncements ​ The following ASUs have been issued by the FASB and are applicable to the Company in future reporting periods. ​ In March 2022, the FASB issued ASU No. 2022-01, Derivatives and Hedging (Topic 815), Fair Value Hedging – Portfolio Layer Method. This update clarifies the guidance in Topic 815 on fair value hedge accounting of interest rate risk for portfolios of financial assets. Under current hedge accounting guidance, the “last-of-layer” method enables an entity to apply fair value hedging to a stated amount of a closed portfolio of prepayable financial assets without having to consider prepayment risk or credit risk when measuring those assets. The hedged item represents a single layer within that closed portfolio. This update expands the scope of this guidance to allow entities to apply the “portfolio layer” method to portfolios of all financial assets, including both prepayable and nonprepayable financial assets. The current model is expanded to 1) explicitly allow entities to designate multiple layers in a single portfolio as individual hedged items and 2) also allow entities the flexibility to use any type of derivative (or combination of derivatives) by applying the multiple-layer model that aligns with its risk management strategy. Although no assets may be added to a closed portfolio once it is designated in a portfolio layer method hedge, at any time after the initial hedge designation, new hedging relationships associated with the portfolio may be designated and existing hedging relationships associated with the portfolio may be dedesignated to align with an entity’s evolving strategy for managing interest rate risk on a timely basis. Under the portfolio layer method, the basis of the portfolio assets is generally adjusted at the portfolio level rather than being allocated to individual assets within the portfolio, except when the allocation of basis adjustments is required by other areas of GAAP. The intent of this update is consistent with the FASB’s efforts to better align an entity’s financial reporting with the results of its risk management strategy and to further simplify the hedge accounting model. This update is effective for fiscal years beginning after December 15, 2022, and interim periods within those fiscal years. Early adoption is permitted. The adoption of ASU No. 2022-01 is not expected to have a material impact on the Company’s consolidated financial statements. ​ In March 2022, the FASB issued ASU No. 2022-02, Financial Instruments – Credit Losses (Topic 326), Troubled Debt Restructurings and Vintage Disclosures. This update eliminates the accounting guidance on troubled debt restructurings (TDRs) for creditors in Subtopic 310-40 and amends the guidance on vintage disclosures to require disclosure of current-period gross write-offs by year of origination. This ASU also updates the requirements related to accounting for credit losses under Topic 326 and adds enhanced disclosures for creditors with respect to loan refinancings and restructurings for borrowers experiencing financial difficulty. This update is effective for fiscal years beginning after December 15, 2022, and interim periods within those fiscal years. Early adoption is permitted. The adoption of ASU No. 2022-02 is not expected to have a material impact on the Company’s consolidated financial statements. ​ Enactment of the Inflation Reduction Act of 2022 ​ On August 16, 2022, the U.S. government enacted the Inflation Reduction Act (IRA) which, among other changes, created a new corporate alternative minimum tax (AMT) based on adjusted financial statement income and imposes a 1% excise tax on corporate stock repurchases. The effective date of these provisions is January 1, 2023. The enactment of the IRA is not expected to have a material impact on the Company’s consolidated financial statements.

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