Loans Held for Sale	3 Months Ended
	Mar. 31, 2020
Debt Disclosure [Abstract]
Loans Held for Sale	LOANS HELD FOR SALEMortgage loans held for immediate sale in the secondary market were $54.2 million at March 31, 2020, compared to $46.9 million at December 31, 2019.  Residential loans that Old National has originated with the intent to sell are recorded at fair value.  Conventional mortgage production is sold on a servicing retained basis.  Certain loans, such as government guaranteed mortgage loans are sold on servicing released basis.