Dividend Restrictions	12 Months Ended
	Dec. 31, 2020
Disclosure of Restrictions on Dividends, Loans and Advances Disclosure [Abstract]
Dividend Restrictions	Dividend RestrictionsBank regulators limit the amount of dividends a subsidiary bank can declare in any calendar year without obtaining prior approval. At December 31, 2020, approximately $101.8 million of the total shareholders’ equity of PNB was available for the payment of dividends to the Corporation, without approval by the applicable regulatory authorities.