Business Combinations	3 Months Ended
Business Combinations	Mar. 31, 2022
Business Combination and Asset Acquisition [Abstract]
Business Combinations	Business Combinations Acquisitions Landmark Insurance of the Palm Beaches. On February 1, 2022, the Bank's insurance agency subsidiary, Valley Insurance Services, acquired Landmark Insurance of the Palm Beaches Inc. (Landmark) agency. The purchase price included $8.6 million in cash and $1.0 million in contingent consideration. Goodwill and other intangible assets totaled $4.4 million and $6.2 million, respectively. The transaction was accounted for under the acquisition method of accounting and accordingly the results of Landmark's operations have been included in Valley's consolidated financial statements for the three months ended March 31, 2022 from the date of acquisition. The Westchester Bank Holding Corporation. On December 1, 2021, Valley completed its acquisition of The Westchester Bank Holding Corporation (Westchester) and its principal subsidiary, The Westchester Bank which was headquartered in White Plains, New York. As of December 1, 2021, Westchester had approximately $1.4 billion in assets, $915.0 million in loans, and $1.2 billion in deposits, after purchase accounting adjustments, and a branch network of seven locations in Westchester County, New York. The common shareholders of Westchester received 229.645 shares of Valley common stock for each Westchester share they owned prior to the merger. The total consideration for the merger was $211.1 million, consisting of approximately 15.7 million shares of Valley common stock. During the first quarter 2022, Valley revised the estimated fair values of the acquired assets as of the acquisition date of Westchester based upon additional information obtained that existed as of December 1, 2021. The adjustments related to the fair value of deferred tax assets and resulted in a $5.0 million increase in goodwill (see Note 9 for more information). If additional information (that existed as of the acquisition date) becomes available, the fair value estimates for acquired assets and assumed liabilities are subject to change for up to one year after the acquisition date. Recent Acquisition Bank Leumi Le-Israel Corporation. On April 1, 2022, Valley completed its acquisition of Bank Leumi Le-Israel Corporation, the U.S. subsidiary of Bank Leumi Le-Israel B.M., and parent company of Bank Leumi USA, and collectively referred to as "Bank Leumi USA". Bank Leumi USA maintained its headquarters in New York City with commercial banking offices in Chicago, Los Angeles, Palo Alto, and Aventura, Florida. Valley issued approximately 85 million shares of common stock and paid $113.4 million in cash in the transaction. The common shareholders of Bank Leumi USA received 3.8025 shares of Valley common stock and $5.08 in cash for each Bank Leumi USA common share that they owned. Based on Valley’s closing stock price on March 31, 2022, the transaction was valued at an estimated $1.2 billion, inclusive of the value of options. As a result of the acquisition, Bank Leumi Le-Israel B.M. owned approximately 14 percent of Valley's common stock as of April 1, 2022. As of March 31, 2022, Bank Leumi had approximately $8.3 billion in assets, $6.1 billion of loans and $7.1 billion of deposits. The acquisition supplements Valley’s commercial banking expertise and provides new business capabilities in the technology banking and private banking areas. In addition, the acquisition further diversifies our loan portfolio from a geographic perspective by allowing Valley to enter new markets. Merger expenses related to the completed and subsequent acquisition activity above totaled $4.4 million for the three months ended March 31, 2022. The merger expenses mainly consisted of salaries and benefits expense, professional and legal fees, and other expense within non-interest expense on the consolidated statements of income. Valley incurred no merger related expenses during the three months ended March 31, 2021.