New Authoritative Accounting Guidance	6 Months Ended
Jun. 30, 2017
Accounting Changes and Error Corrections [Abstract]
New Authoritative Accounting Guidance	New Authoritative Accounting Guidance Accounting Standards Update (ASU) No. 2017-08, "Receivables—Nonrefundable Fees and Other Costs (Subtopic 310-20) Premium Amortization on Purchased Callable Debt Securities" shortens the amortization period for certain callable debt securities held at a premium. ASU No. 2017-08 requires the premium to be amortized to the earliest call date. The accounting for securities held at a discount does not change and the discount continues to be amortized as an adjustment to yield over the contractual life (to maturity) of the instrument. ASU No. 2017-08 is effective for Valley for the annual and interim reporting periods beginning January 1, 2018 with early adoption permitted, and is to be applied retrospectively. ASU No. 2017-08 is not expected to have a significant impact on Valley's consolidated financial statements. ASU No. 2017-07, "Compensation—Retirement Benefits (Topic 715): Improving the Presentation of Net Periodic Pension Cost and Net Periodic Postretirement Benefit Cost" requires service cost to be reported in the same financial statement line item(s) as other current employee compensation costs. All other components of expense must be presented separately from service cost, and outside any subtotal of income from operations. Only the service cost component of expense is eligible to be capitalized. ASU No. 2017-07 is effective for Valley for its annual and interim reporting periods beginning January1, 2018 with early adoption permitted. ASU No. 2017-07 is not expected to have a significant impact on the presentation on Valley's consolidated financial statements. ASU No. 2017-04, "Intangibles—Goodwill and Other (Topic 350): Simplifying the Test for Goodwill Impairment" eliminates the requirement to calculate the implied fair value of goodwill (i.e., Step 2 of the current goodwill impairment test guidance) to measure a goodwill impairment charge. Instead, an entity will be required to record an impairment charge based on the excess of a reporting unit’s carrying amount over its fair value (i.e., measure the charge based on Step 1 of the current guidance). In addition, ASU No. 2017-04 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. However, an entity will be required to disclose the amount of goodwill allocated to each reporting unit with a zero or negative carrying amount of net assets. An entity still has the option to perform the qualitative assessment for a reporting unit to determine if the quantitative impairment test is necessary. ASU No. 2017-04 is effective for Valley for its annual or any interim goodwill impairment tests in fiscal years beginning January 1, 2020 and is not expected to have a significant impact on the presentation of Valley's consolidated financial statements. Early adoption is permitted for annual and interim goodwill impairment testing dates after January 1, 2017. ASU No. 2016-15, "Statement of Cash Flows (Topic 230): Classification of Certain Cash Receipts and Cash Payments" clarifies on how certain cash receipts and cash payments should be classified and presented in the statement of cash flow. The ASU No. 2016-15 includes guidance on eight specific cash flow issues with the objective of reducing the existing diversity in practice in how certain cash receipts and cash payments are presented and classified in the statement of cash flows. ASU No. 2016-15 is effective for Valley for annual and interim reporting periods beginning January 1, 2018 and it should be applied using a retrospective transition method to each period presented. ASU No. 2016-15 is not expected to have a significant impact on the presentation of Valley's consolidated statements of cash flows. ASU No. 2016-13, "Financial Instruments - Credit Losses (Topic 326): Measurement of Credit Losses on Financial Instruments" amends the accounting guidance on the impairment of financial instruments. The ASU No. 2016-13 adds to U.S. GAAP an impairment model (known as the current expected credit loss (CECL) model) that is based on expected losses rather than incurred losses. Under the new guidance, an entity is required to measure all expected credit losses for financial assets held at the reporting date based on historical experience, current conditions, and reasonable and supportable forecasts. ASU No. 2016-13 is effective for Valley for reporting periods beginning January 1, 2020. Management is currently evaluating the impact of the ASU on Valley’s consolidated financial statements. Valley expects that the new guidance will result in an increase in its allowance for credit losses due to several factors, including: (i) the allowance related to Valley loans will increase to include credit losses over the full remaining expected life of the portfolio, and will consider expected future changes in macroeconomic conditions, (ii) the nonaccretable difference (as defined in Note 7) on PCI loans will be recognized as an allowance, offset by an increase in the carrying value of the related loans, and (iii) an allowance will be established for estimated credit losses on investment securities classified as held to maturity. The extent of the increase is under evaluation, but will depend upon the nature and characteristics of the Valley's loan and investment portfolios at the adoption date, and the economic conditions and forecasts at that date. ASU No. 2016-09, "Compensation - Stock Compensation (Topic 718): Improvements to Employee Share-Based Payment Accounting" simplifies several aspects of the stock compensation guidance in Topic 718 and other related guidance. The amendments focus on income tax accounting upon vesting or exercise of share-based payments, award classification, liability classification exception for statutory tax withholding requirements, recognition methods for forfeitures within stock compensation expense, and the cash flow presentation. Amendments related to the presentation of employee taxes paid on the statement of cash flows when an employer withholds shares to meet the minimum statutory withholding requirement should be applied retrospectively. Amendments requiring recognition of excess tax benefits and tax deficiencies in the income statement and the practical expedient for estimating expected term should be applied prospectively. ASU No. 2016-09 became effective for Valley for reporting periods after January 1, 2017 and did not have a significant impact on Valley's consolidated financial statements. At adoption, Valley elected to apply the amendments related to the presentation of excess tax benefits on the statement of cash flows using the prospective transition method. Valley also elected to continue to estimate the forfeitures of stock awards as a component of total stock compensation expense based on the number of awards that are expected to vest. ASU No. 2016-02, “Leases (Topic 842)” 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. Topic 842 will be effective for Valley for reporting periods beginning January 1, 2019, with an early adoption permitted. Valley must apply a modified retrospective transition approach for the applicable leases existing at, or entered into after, the beginning of the earliest comparative period presented in the financial statements. The modified retrospective approach would not require any transition accounting for leases that expired before the earliest comparative period presented. Management is currently evaluating the impact of Topic 842 on Valley’s consolidated financial statements by reviewing its existing lease contracts and service contracts that may include embedded leases. Valley expects a gross-up of its consolidated statements of financial condition as a result of recognizing lease liabilities and right of use assets; the extent of such gross-up is under evaluation. Valley does not expect material changes to the recognition of operating lease expense in its consolidated statements of income. ASU No. 2016-01, “Financial Instruments - Overall (Subtopic 825-10) - Recognition and Measurement of Financial Assets and Financial Liabilities” requires that: (i) equity investments with readily determinable fair values must be measured at fair value with changes in fair value recognized in net income, (ii) equity investments without readily determinable fair values must be measured at either fair value or at cost adjusted for changes in observable prices minus impairment with changes in value under either of these methods recognized in net income, (iii) entities that record financial liabilities at fair value due to a fair value option election must recognize changes in fair value in other comprehensive income if it is related to instrument-specific credit risk, and (iv) entities must assess whether a valuation allowance is required for deferred tax assets related to available-for-sale debt securities. ASU No. 2016-01 is effective for Valley for reporting periods beginning January 1, 2018 and is not expected to have a material effect on Valley’s consolidated financial statements. ASU No. 2014-09, “Revenue from Contracts with Customers (Topic 606)" implements a common revenue standard that clarifies the principles for recognizing 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. In 2016, the Financial Accounting Standards Board issued ASU No. 2016-08, “Revenue from Contracts with Customers (Topic 606) - Principal versus Agent Considerations (Reporting Revenue Gross versus Net)” and ASU No. 2016-10, “Revenue from Contracts with Customers (Topic 606) - Identifying Performance Obligations and Licensing,” to further clarify the new guidance under Topic 606. ASU No. 2014-09 and its aforementioned amendments are effective on January 1, 2018. While Valley has not identified any material changes in the timing of revenue recognition under the new guidance, its review is ongoing. However, Valley does not expect the new revenue guidance to have a significant impact on its consolidated financial statements.

New Authoritative Accounting Guidance

Accounting Standards Update (ASU) No. 2017-08, "Receivables—Nonrefundable Fees and Other Costs (Subtopic 310-20) Premium Amortization on Purchased Callable Debt Securities" shortens the amortization period for certain callable debt securities held at a premium. ASU No. 2017-08 requires the premium to be amortized to the earliest call date. The accounting for securities held at a discount does not change and the discount continues to be amortized as an adjustment to yield over the contractual life (to maturity) of the instrument. ASU No. 2017-08

is effective for Valley for the annual and interim reporting periods beginning January 1, 2018 with early adoption permitted, and is to be applied retrospectively. ASU No. 2017-08 is not expected to have a significant impact on Valley's consolidated financial statements.

ASU No. 2017-07, "Compensation—Retirement Benefits (Topic 715): Improving the Presentation of Net Periodic Pension Cost and Net Periodic Postretirement Benefit Cost" requires service cost to be reported in the same financial statement line item(s) as other current employee compensation costs. All other components of expense must be presented separately from service cost, and outside any subtotal of income from operations. Only the service cost component of expense is eligible to be capitalized. ASU No. 2017-07 is effective for Valley for its annual and interim reporting periods beginning January1, 2018 with early adoption permitted. ASU No. 2017-07 is not expected to have a significant impact on the presentation on Valley's consolidated financial statements.

ASU No. 2017-04, "Intangibles—Goodwill and Other (Topic 350): Simplifying the Test for Goodwill Impairment" eliminates the requirement to calculate the implied fair value of goodwill (i.e., Step 2 of the current goodwill impairment test guidance) to measure a goodwill impairment charge. Instead, an entity will be required to record an impairment charge based on the excess of a reporting unit’s carrying amount over its fair value (i.e., measure the charge based on Step 1 of the current guidance). In addition, ASU No. 2017-04 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. However, an entity will be required to disclose the amount of goodwill allocated to each reporting unit with a zero or negative carrying amount of net assets. An entity still has the option to perform the qualitative assessment for a reporting unit to determine if the quantitative impairment test is necessary. ASU No. 2017-04 is effective for Valley for its annual or any interim goodwill impairment tests in fiscal years beginning January 1, 2020 and is not expected to have a significant impact on the presentation of Valley's consolidated financial statements. Early adoption is permitted for annual and interim goodwill impairment testing dates after January 1, 2017.

ASU No. 2016-15, "Statement of Cash Flows (Topic 230): Classification of Certain Cash Receipts and Cash Payments" clarifies on how certain cash receipts and cash payments should be classified and presented in the statement of cash flow. The ASU No. 2016-15 includes guidance on eight specific cash flow issues with the objective of reducing the existing diversity in practice in how certain cash receipts and cash payments are presented and classified in the statement of cash flows. ASU No. 2016-15 is effective for Valley for annual and interim reporting periods beginning January 1, 2018 and it should be applied using a retrospective transition method to each period presented. ASU No. 2016-15 is not expected to have a significant impact on the presentation of Valley's consolidated statements of cash flows.

ASU No. 2016-13, "Financial Instruments - Credit Losses (Topic 326): Measurement of Credit Losses on Financial Instruments" amends the accounting guidance on the impairment of financial instruments. The ASU No. 2016-13 adds to U.S. GAAP an impairment model (known as the current expected credit loss (CECL) model) that is based on expected losses rather than incurred losses. Under the new guidance, an entity is required to measure all expected credit losses for financial assets held at the reporting date based on historical experience, current conditions, and reasonable and supportable forecasts. ASU No. 2016-13 is effective for Valley for reporting periods beginning January 1, 2020. Management is currently evaluating the impact of the ASU on Valley’s consolidated financial statements. Valley expects that the new guidance will result in an increase in its allowance for credit losses due to several factors, including: (i) the allowance related to Valley loans will increase to include credit losses over the full remaining expected life of the portfolio, and will consider expected future changes in macroeconomic conditions, (ii) the nonaccretable difference (as defined in Note 7) on PCI loans will be recognized as an allowance, offset by an increase in the carrying value of the related loans, and (iii) an allowance will be established for estimated credit losses on investment securities classified as held to maturity. The extent of the increase is under evaluation, but will depend upon the nature and characteristics of the Valley's loan and investment portfolios at the adoption date, and the economic conditions and forecasts at that date.

ASU No. 2016-09, "Compensation - Stock Compensation (Topic 718): Improvements to Employee Share-Based Payment Accounting" simplifies several aspects of the stock compensation guidance in Topic 718 and other related guidance. The amendments focus on income tax accounting upon vesting or exercise of share-based payments, award classification, liability classification exception for statutory tax withholding requirements, recognition methods for forfeitures within stock compensation expense, and the cash flow presentation. Amendments related to the presentation of employee taxes paid on the statement of cash flows when an employer withholds shares to meet the minimum statutory withholding requirement should be applied retrospectively. Amendments requiring recognition of excess tax benefits and tax deficiencies in the income statement and the practical expedient for estimating expected term should be applied prospectively. ASU No. 2016-09 became effective for Valley for reporting periods after January 1, 2017 and did not have a significant impact on Valley's consolidated financial statements. At adoption, Valley elected to apply the amendments related to the presentation of excess tax benefits on the statement of cash flows using the prospective transition method. Valley also elected to continue to estimate the forfeitures of stock awards as a component of total stock compensation expense based on the number of awards that are expected to vest.

ASU No. 2016-02, “Leases (Topic 842)” 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. Topic 842 will be effective for Valley for reporting periods beginning January 1, 2019, with an early adoption permitted. Valley must apply a modified retrospective transition approach for the applicable leases existing at, or entered into after, the beginning of the earliest comparative period presented in the financial statements. The modified retrospective approach would not require any transition accounting for leases that expired before the earliest comparative period presented. Management is currently evaluating the impact of Topic 842 on Valley’s consolidated financial statements by reviewing its existing lease contracts and service contracts that may include embedded leases. Valley expects a gross-up of its consolidated statements of financial condition as a result of recognizing lease liabilities and right of use assets; the extent of such gross-up is under evaluation. Valley does not expect material changes to the recognition of operating lease expense in its consolidated statements of income.

ASU No. 2016-01, “Financial Instruments - Overall (Subtopic 825-10) - Recognition and Measurement of Financial Assets and Financial Liabilities” requires that: (i) equity investments with readily determinable fair values must be measured at fair value with changes in fair value recognized in net income, (ii) equity investments without readily determinable fair values must be measured at either fair value or at cost adjusted for changes in observable prices minus impairment with changes in value under either of these methods recognized in net income, (iii) entities that record financial liabilities at fair value due to a fair value option election must recognize changes in fair value in other comprehensive income if it is related to instrument-specific credit risk, and (iv) entities must assess whether a valuation allowance is required for deferred tax assets related to available-for-sale debt securities. ASU No. 2016-01 is effective for Valley for reporting periods beginning January 1, 2018 and is not expected to have a material effect on Valley’s consolidated financial statements.

ASU No. 2014-09, “Revenue from Contracts with Customers (Topic 606)" implements a common revenue standard that clarifies the principles for recognizing 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. In 2016, the Financial Accounting Standards Board issued ASU No. 2016-08, “Revenue from Contracts with Customers (Topic 606) - Principal versus Agent Considerations (Reporting Revenue Gross versus Net)” and ASU No. 2016-10, “Revenue from Contracts with Customers (Topic 606) - Identifying Performance Obligations and Licensing,” to further clarify the new guidance under Topic 606. ASU No. 2014-09 and its aforementioned amendments are effective on January 1, 2018. While Valley has not identified any material changes in the timing of revenue recognition under the new guidance, its review is ongoing. However, Valley does not expect the new revenue guidance to have a significant impact on its consolidated financial statements.