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Nature of Operations
12 Months Ended
Dec. 31, 2022
Organization, Consolidation and Presentation of Financial Statements [Abstract]  
Nature of Operations NATURE OF OPERATIONSOld National Bancorp, a financial holding company headquartered in Evansville, Indiana with commercial and consumer banking operations headquartered in Chicago, Illinois.  Its principal subsidiary is Old National Bank.  Through its bank and non-bank affiliates, Old National Bancorp provides to its clients