MERGERS AND ACQUISITIONS	9 Months Ended
	Sep. 30, 2021
Business Combination and Asset Acquisition [Abstract]
MERGERS AND ACQUISITIONS	MERGERS AND ACQUISITIONSPending Acquisition – Howard Bancorp, Inc.On July 12, 2021, the Corporation entered into a definitive merger agreement to acquire Howard, a bank holding company based in Baltimore, Maryland with approximately $2.6 billion in total assets. The transaction is valued at approximately $418 million. Under the terms of the merger agreement, Howard voting common shareholders will be entitled to receive 1.8 shares of the Corporation’s common stock for each share of Howard common stock. The Corporation expects to issue approximately 33.8 million shares of its common stock in exchange for approximately 18.8 million shares of Howard common stock. Howard’s banking affiliate, Howard Bank, will be merged into FNBPA. We have received all regulatory clearances for the proposed merger to occur. The transaction is expected to be completed in early 2022, pending satisfaction of certain routine and customary closing conditions and approval by Howard's shareholders.