Recent Accounting Pronouncements	3 Months Ended
Sep. 30, 2019
Accounting Changes And Error Corrections [Abstract]
Recent Accounting Pronouncements	6. RECENT ACCOUNTING PRONOUNCEMENTS In June 2016, the FASB issued ASU 2016-13, Financial Instruments—Credit Losses (Topic 326): Measurement of Credit Losses on Financial Instruments. The ASU requires credit losses on most financial assets measured at amortized cost and certain other instruments to be measured using an expected credit loss model, referred to as the current expected credit loss (“CECL”) model. Under this model, entities will estimate credit losses over the entire contractual term of the instrument (considering estimated prepayments, but not expected extensions or modifications unless reasonable expectation of a troubled debt restructuring exists) from the date of initial recognition of that instrument. An allowance will be established for loans that have been acquired in a business combination that currently do not have an allowance. As of September 30, 2019, approximately $1.04 billion of acquired loans do not have an allowance. The ASU also replaces the current accounting model for purchased credit impaired loans and debt securities. The allowance for credit losses for purchased financial assets with a more-than insignificant amount of credit deterioration since origination (“PCD assets”), should be determined in a similar manner to other financial assets measured on an amortized cost basis. However, upon initial recognition, the allowance for credit losses is added to the purchase price (“gross up approach”) to determine the initial amortized cost basis. The subsequent accounting for PCD financial assets is the same expected loss model described above. Further, the ASU made certain targeted amendments to the existing impairment model for available-for-sale (“AFS”) debt securities. For an AFS debt security for which there is neither the intent nor a more-likely-than-not requirement to sell, an entity will record credit losses as an allowance rather than a write-down of the amortized cost basis. For public business entities that are SEC filers and not smaller reporting companies, the amendments are effective for fiscal years beginning after December 15, 2019, including interim periods within those fiscal years. The Company will apply the standard’s provisions as a cumulative-effect adjustment to retained earnings as of July 1, 2020 (i.e. modified retrospective approach). The Company has selected a third party firm to assist in the development of a CECL program, and has selected a software model to assist in the calculation of the allowance for loan losses in preparation for the change to the expected loss model. The Company is continuing its evaluation of this ASU including the potential impact on its consolidated financial statements. The extent of change is indeterminable at this time as it will be dependent upon portfolio composition and credit quality at the adoption date, as well as economic conditions and forecasts at that time. Upon adoption, any impact to the allowance for credit losses, currently allowance for loan and lease losses, will have an offsetting impact on retained earnings, and be net of tax. In January 2017, the FASB issued ASU 2017-04, Intangibles - Goodwill and Other (Topic 350): Simplifying the Test for Goodwill Impairment. This ASU simplifies subsequent measurement of goodwill by eliminating Step 2 of the impairment test while retaining the option to perform the qualitative assessment for a reporting unit to determine whether the quantitative impairment test is necessary. The ASU also eliminates the requirements for any reporting unit with a zero or negative carrying amount to perform a qualitative assessment and, if it fails that qualitative test, to perform Step 2 of the goodwill impairment test. Therefore, the same impairment assessment applies to all reporting units. For public entities, ASU 2017-04 is effective for fiscal years beginning after December 15, 2019 with early adoption permitted for interim or annual goodwill impairment testing dates beginning after January 1, 2017. The Company is currently evaluating the impact of adopting this ASU on its consolidated financial statements. In May 2019, the FASB issued ASU 2019-05, “Financial Instruments - Credit Losses (Topic 326); Targeted Transition Relief”. ASU 2019-05 provides transition relief by providing entities with an alternative to irrevocably elect the fair value option for eligible financial assets measured at amortized cost upon adoption of the credit losses standard. To be eligible for the transition election, the existing financial asset must otherwise be both within the scope of the new credit losses standard and eligible for the applying the fair value option in ASC 825-10.3. The election must be applied on an instrument-by-instrument basis and is not available for either available for sale or held to maturity debt securities. For entities that have adopted ASU 2016-13, ASU 2019-05 is effective for fiscal years beginning after December 15, 2019, including interim periods within those fiscal years. Early adoption is permitted once ASU 2016-13 has been adopted. For entities that elect the fair value option, the difference between the carrying amount and the fair value of the financial asset would be recognized through a cumulative-effect adjustment to opening retained earnings net of tax, as of the date an entity adopted ASU 2016-13. Changes in fair value of that financial asset would subsequently be reported in current earnings. The Company is currently evaluating the impact of adopting this ASU on its consolidated financial statements. Adoption of New Accounting Standards Effective July 1, 2019, the Company implemented ASU No. 2016-02, “Leases (Topic 842)” (modified by ASU 2018-01 – Leases (Topic 842): Land Easement Practical Expedient for Transition to Topic 842) and ASU 2018-20 – Leases (Topic 842) Narrow – Scope Improvements for Lessors). ASU 2016-02 requires the recognition of a right of use asset and related lease liability by lessees for leases classified as operating leases under current GAAP. Topic 842, which replaces the current guidance under Topic 840, retains a distinction between finance leases and operating leases. The recognition, measurement, and presentation of expenses and cash flows arising from a lease by a lessee also will not significantly change from current GAAP. For leases with a term of 12 months or less, a lessee is permitted to make an accounting policy election by class of underlying asset not to recognize right of use assets and lease liabilities. The Company has made this accounting policy election. Effective with the adoption on July 1, 2019, the Company recognized a “right-of-use-asset” and a “lease liability” for its operating leases and has elected to apply practical expedients pertaining to the ASU. The Company applied the following three practical expediencies, which must be elected as a package and applied consistently to all of our leases: (i) the Company did not have to reassess whether any expired leases or existing contracts are, or contain, a lease; (ii) the Company did not have to reassess the lease classifications for any expired or existing leases. Accordingly, Topic 840 operating leases became Topic 842 operating leases; and (iii) the Company did not have to reassess initial; direct costs for any existing leases. The Company applied a modified retrospective transition approach for the applicable leases. ASU 2016-02 provides for a modified retrospective transition approach requiring lessees to recognize and measure leases on the balance sheet at the beginning of either the earliest period presented or as of the beginning of the period of adoption. The Company elected to account for lease and non-lease components separately because such amounts are readily determinable under our lease contracts rather than elect the practical expedient to account for the components as a single lease component. The Company elected to apply ASU 2016-02 as of the beginning of the period of adoption (July 1, 2019) and will not restate comparative periods. Upon adoption of ASU 2016-02, the Company recorded a right-of-use asset of approximately $17.2 million and a lease liability of approximately $17.8 million. In October 2018, the FASB issued ASU 2018-16, Derivatives and Hedging (Topic 815), Inclusion of the Secured Overnight Financing Rate (“SOFR”) Overnight Index Swap (“OIS”) Rate as a Benchmark Interest Rate for Hedge Accounting Purposes. This ASU permits the use of the OIS Rate based on SOFR as a benchmark interest rate for purposes of applying hedge accounting under Topic 815. This is the fifth U.S. benchmark interest rate eligible for use in hedge accounting in addition to interest rates on direct Treasury obligations of the U.S. Government, the London Interbank Offered Rate swap rate, and the OIS Rate based on the Fed Funds Effective Rate and the Securities Industry and Financial Markets Association Municipal Swap Rate. The amendments in this ASU are required to be adopted concurrently with the amendments in ASU 2017-12, Derivatives and Hedging: Targeted Improvements to Accounting for Hedging Activities, for entities that have not adopted that guidance. For public entities that have previously adopted ASU 2017-12, the amendments are effective for fiscal years beginning after December 15, 2018, and interim periods within those fiscal years. Early adoption is permitted in any interim period if an entity already has adopted ASU 2017-12. The Company early adopted ASU 2017-12 on July 1, 2017. The amendments in ASU 2018-16 should be applied on a prospective basis for qualifying new or re-designated hedging relationships entered into on or after the date of adoption. The Company adopted ASU 2018-16 on July 1, 2019, and its adoption did not have a significant impact on the Company’s audited consolidated financial statements. In April 2019, the FASB issued ASU 2019-04 Codification Improvements to Topic 326, Financial Instruments Credit Losses, Topic 815, Derivatives and Hedging, and Topic 825, Financial Instruments. ASU 2019-04 amends certain aspects of accounting for credit losses, hedging activities, and financial instruments addressed by ASUs 2016-13, 2016-01, and 2017-12, respectively. Significant amendments to ASU 2016-13 relate to the measurement of accrued interest, transfers between classifications or categories for loans and debt securities and including recoveries when estimating the allowance for credit losses. For Topic 825, the codification improvements to ASU 2016-01 provide scope clarification for Subtopics 320-10, Investments-Debt and Equity Securities-Overall, and 321-10, Investments-Equity Securities-Overall, held to maturity debt securities fair value disclosures, and re-measurement of equity securities at historical exchange rates. Significant amendments to ASU 2017-12 amends the guidance related to partial-term fair value hedges of interest rate risk, disclosure of fair value hedge basis adjustments, and scope for not-for-profit entities. ASU 2019-04 clarifies that an entity that reclassifies debt securities from the held to maturity category to available for sale as part of its transition would not (1) call in to question its held to maturity assertion for other securities held at the entity’s most recent reporting date, (2) be required to actually designate any reclassified security in a last-of-layer hedge, or (3) be restricted from selling any reclassified security. The Company adopted ASU 2019-04 on July 1, 2019. As part of the adoption, the Company reclassified $537.7 million of investment securities held to maturity to investment securities available for sale. The Company did not reclassify investment securities from held to maturity to available for sale upon the original adoption of the amendments in ASU 2017-12. Entities electing to reclassify investment securities upon adoption of the amendments in this update are required to reflect the reclassification as of the beginning of the first annual period beginning after the issuance of ASU 2019-04 (July 1, 2019).

Recent Accounting Pronouncements

3 Months Ended

Sep. 30, 2019

Accounting Changes And Error Corrections [Abstract]

6. RECENT ACCOUNTING PRONOUNCEMENTS

In June 2016, the FASB issued ASU 2016-13, Financial Instruments—Credit Losses (Topic 326): Measurement of Credit Losses on Financial Instruments. The ASU requires credit losses on most financial assets measured at amortized cost and certain other instruments to be measured using an expected credit loss model, referred to as the current expected credit loss (“CECL”) model. Under this model, entities will estimate credit losses over the entire contractual term of the instrument (considering estimated prepayments, but not expected extensions or modifications unless reasonable expectation of a troubled debt restructuring exists) from the date of initial recognition of that instrument. An allowance will be established for loans that have been acquired in a business combination that currently do not have an allowance. As of September 30, 2019, approximately $1.04 billion of acquired loans do not have an allowance.

The ASU also replaces the current accounting model for purchased credit impaired loans and debt securities. The allowance for credit losses for purchased financial assets with a more-than insignificant amount of credit deterioration since origination (“PCD assets”), should be determined in a similar manner to other financial assets measured on an amortized cost basis. However, upon initial recognition, the allowance for credit losses is added to the purchase price (“gross up approach”) to determine the initial amortized cost basis. The subsequent accounting for PCD financial assets is the same expected loss model described above.

Further, the ASU made certain targeted amendments to the existing impairment model for available-for-sale (“AFS”) debt securities. For an AFS debt security for which there is neither the intent nor a more-likely-than-not requirement to sell, an entity will record credit losses as an allowance rather than a write-down of the amortized cost basis. For public business entities that are SEC filers and not smaller reporting companies, the amendments are effective for fiscal years beginning after December 15, 2019, including interim periods within those fiscal years. The Company will apply the standard’s provisions as a cumulative-effect adjustment to retained earnings as of July 1, 2020 (i.e. modified retrospective approach). The Company has selected a third party firm to assist in the development of a CECL program, and has selected a software model to assist in the calculation of the allowance for loan losses in preparation for the change to the expected loss model. The Company is continuing its evaluation of this ASU including the potential impact on its consolidated financial statements. The extent of change is indeterminable at this time as it will be dependent upon portfolio composition and credit quality at the adoption date, as well as economic conditions and forecasts at that time. Upon adoption, any impact to the allowance for credit losses, currently allowance for loan and lease losses, will have an offsetting impact on retained earnings, and be net of tax.

In January 2017, the FASB issued ASU 2017-04, Intangibles - Goodwill and Other (Topic 350): Simplifying the Test for Goodwill Impairment. This ASU simplifies subsequent measurement of goodwill by eliminating Step 2 of the impairment test while retaining the option to perform the qualitative assessment for a reporting unit to determine whether the quantitative impairment test is necessary. The ASU also eliminates the requirements for any reporting unit with a zero or negative carrying amount to perform a qualitative assessment and, if it fails that qualitative test, to perform Step 2 of the goodwill impairment test. Therefore, the same impairment assessment applies to all reporting units. For public entities, ASU 2017-04 is effective for fiscal years beginning after December 15, 2019 with early adoption permitted for interim or annual goodwill impairment testing dates beginning after January 1, 2017. The Company is currently evaluating the impact of adopting this ASU on its consolidated financial statements.

In May 2019, the FASB issued ASU 2019-05, “Financial Instruments - Credit Losses (Topic 326); Targeted Transition Relief”. ASU 2019-05 provides transition relief by providing entities with an alternative to irrevocably elect the fair value option for eligible financial assets measured at amortized cost upon adoption of the credit losses standard. To be eligible for the transition election, the existing financial asset must otherwise be both within the scope of the new credit losses standard and eligible for the applying the fair value option in ASC 825-10.3. The election must be applied on an instrument-by-instrument basis and is not available for either available for sale or held to maturity debt securities. For entities that have adopted ASU 2016-13, ASU 2019-05 is effective for fiscal years beginning after December 15, 2019, including interim periods within those fiscal years. Early adoption is permitted once ASU 2016-13 has been adopted. For entities that elect the fair value option, the difference between the carrying amount and the fair value of the financial asset would be recognized through a cumulative-effect adjustment to opening retained earnings net of tax, as of the date an entity adopted ASU 2016-13. Changes in fair value of that financial asset would subsequently be reported in current earnings. The Company is currently evaluating the impact of adopting this ASU on its consolidated financial statements.

Adoption of New Accounting Standards

Effective July 1, 2019, the Company implemented ASU No. 2016-02, “Leases (Topic 842)” (modified by ASU 2018-01 – Leases (Topic 842): Land Easement Practical Expedient for Transition to Topic 842) and ASU 2018-20 – Leases (Topic 842) Narrow – Scope Improvements for Lessors). ASU 2016-02 requires the recognition of a right of use asset and related lease liability by lessees for leases classified as operating leases under current GAAP. Topic 842, which replaces the current guidance under Topic 840, retains a distinction between finance leases and operating leases. The recognition, measurement, and presentation of expenses and cash flows arising from a lease by a lessee also will not significantly change from current GAAP. For leases with a term of 12 months or less, a lessee is permitted to make an accounting policy election by class of underlying asset not to recognize right of use assets and lease liabilities. The Company has made this accounting policy election. Effective with the adoption on July 1, 2019, the Company recognized a “right-of-use-asset” and a “lease liability” for its operating leases and has elected to apply practical expedients pertaining to the ASU. The Company applied the following three practical expediencies, which must be elected as a package and applied consistently to all of our leases: (i) the Company did not have to reassess whether any expired leases or existing contracts are, or contain, a lease; (ii) the Company did not have to reassess the lease classifications for any expired or existing leases. Accordingly, Topic 840 operating leases became Topic 842 operating leases; and (iii) the Company did not have to reassess initial; direct costs for any existing leases. The Company applied a modified retrospective transition approach for the applicable leases. ASU 2016-02 provides for a modified retrospective transition approach requiring lessees to recognize and measure leases on the balance sheet at the beginning of either the earliest period presented or as of the beginning of the period of adoption. The Company elected to account for lease and non-lease components separately because such amounts are readily determinable under our lease contracts rather than elect the practical expedient to account for the components as a single lease component. The Company elected to apply ASU 2016-02 as of the beginning of the period of adoption (July 1, 2019) and will not restate comparative periods. Upon adoption of ASU 2016-02, the Company recorded a right-of-use asset of approximately $17.2 million and a lease liability of approximately $17.8 million.

In October 2018, the FASB issued ASU 2018-16, Derivatives and Hedging (Topic 815), Inclusion of the Secured Overnight Financing Rate (“SOFR”) Overnight Index Swap (“OIS”) Rate as a Benchmark Interest Rate for Hedge Accounting Purposes. This ASU permits the use of the OIS Rate based on SOFR as a benchmark interest rate for purposes of applying hedge accounting under Topic 815. This is the fifth U.S. benchmark interest rate eligible for use in hedge accounting in addition to interest rates on direct Treasury obligations of the U.S. Government, the London Interbank Offered Rate swap rate, and the OIS Rate based on the Fed Funds Effective Rate and the Securities Industry and Financial Markets Association Municipal Swap Rate. The amendments in this ASU are required to be adopted concurrently with the amendments in ASU 2017-12, Derivatives and Hedging: Targeted Improvements to Accounting for Hedging Activities, for entities that have not adopted that guidance. For public entities that have previously adopted ASU 2017-12, the amendments are effective for fiscal years beginning after December 15, 2018, and interim periods within those fiscal years. Early adoption is permitted in any interim period if an entity already has adopted ASU 2017-12. The Company early adopted ASU 2017-12 on July 1, 2017. The amendments in ASU 2018-16 should be applied on a prospective basis for qualifying new or re-designated hedging relationships entered into on or after the date of adoption. The Company adopted ASU 2018-16 on July 1, 2019, and its adoption did not have a significant impact on the Company’s audited consolidated financial statements.

In April 2019, the FASB issued ASU 2019-04 Codification Improvements to Topic 326, Financial Instruments Credit Losses, Topic 815, Derivatives and Hedging, and Topic 825, Financial Instruments. ASU 2019-04 amends certain aspects of accounting for credit losses, hedging activities, and financial instruments addressed by ASUs 2016-13, 2016-01, and 2017-12, respectively. Significant amendments to ASU 2016-13 relate to the measurement of accrued interest, transfers between classifications or categories for loans and debt securities and including recoveries when estimating the allowance for credit losses. For Topic 825, the codification improvements to ASU 2016-01 provide scope clarification for Subtopics 320-10, Investments-Debt and Equity Securities-Overall, and 321-10, Investments-Equity Securities-Overall, held to maturity debt securities fair value disclosures, and re-measurement of equity securities at historical exchange rates. Significant amendments to ASU 2017-12 amends the guidance related to partial-term fair value hedges of interest rate risk, disclosure of fair value hedge basis adjustments, and scope for not-for-profit entities. ASU 2019-04 clarifies that an entity that reclassifies debt securities from the held to maturity category to available for sale as part of its transition would not (1) call in to question its held to maturity assertion for other securities held at the entity’s most recent reporting date, (2) be required to actually designate any reclassified security in a last-of-layer hedge, or (3) be restricted from selling any reclassified security. The Company adopted ASU 2019-04 on July 1, 2019. As part of the adoption, the Company reclassified $537.7 million of investment securities held to maturity to investment securities available for sale. The Company did not reclassify investment securities from held to maturity to available for sale upon the original adoption of the amendments in ASU 2017-12. Entities electing to reclassify investment securities upon adoption of the amendments in this update are required to reflect the reclassification as of the beginning of the first annual period beginning after the issuance of ASU 2019-04 (July 1, 2019).