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Cash and Due from Banks	12 Months Ended
Cash and Due from Banks	Dec. 31, 2019
Cash and Cash Equivalents [Abstract]
Cash and Due from Banks	CASH AND DUE FROM BANKS The Heartland banks are required to maintain certain average cash reserve balances as a non-member bank of the Federal Reserve System. The reserve balance requirements at December 31, 2019 and 2018, were $46.8 million and $15.2 million, respectively.