Subsequent Events	3 Months Ended
Mar. 31, 2018
Subsequent Events [Abstract]
Subsequent Events	Subsequent Events On February 12, 2018, German American Bancorp (now known as German American Bank) entered into a Purchase and Assumption Agreement (the “Purchase Agreement”) with MainSource Bank, a wholly-owned subsidiary of MainSource Financial Group, Inc. (“MainSource”), which provides for the acquisition by German American Bank of five MainSource Bank branch locations (four in Columbus, Indiana, and one in Greensburg, Indiana), and certain related assets, and the assumption by German American Bank of certain related liabilities. Pursuant to the Purchase Agreement, German American Bank has agreed to assume approximately $160 million in deposits and purchase approximately $134 million in loans associated with the five bank branches. German American Bank has agreed to pay a purchase price equal to the sum of: (i) 8.0% of the balances of certain checking accounts and other demand withdrawal accounts (excluding governmental accounts with public funds); (ii) 4.5% of the balances of governmental accounts with public funds, excluding time deposits; (iii) 4.5% of the balances of money market and savings deposits, excluding governmental accounts with public funds; (iv) the net book value of all assets, including loans but excluding any accrued interest on such loans; and (v) the accrued interest with respect to purchased loans. The purchase price will be adjusted to reflect increases or decreases in the deposit balances during the six month period following the closing date. Upon written notice, German American Bank will also have the ability to put loans back to MainSource Bank during such six month period. The expected premium to be paid for deposits under the Agreement is approximately $8 million. German American Bank is also assuming the obligations of MainSource Bank related to certain leases covering the five bank branches. With the previously-announced merger of MainSource and First Financial Bancorp having been completed on April 1, 2018 and all necessary regulatory approvals having been received, the transaction is expected to close on May 18, 2018, subject to other customary closing conditions. Effective April 1, 2018, the legal name of German American Bancorp was changed to German American Bank. The new name corresponds with the trade name already being used by the banking subsidiary and promotes further distinction in nomenclature between the banking subsidiary and the bank holding company, German American Bancorp, Inc.

Subsequent Events

On February 12, 2018, German American Bancorp (now known as German American Bank) entered into a Purchase and Assumption Agreement (the “Purchase Agreement”) with MainSource Bank, a wholly-owned subsidiary of MainSource Financial Group, Inc. (“MainSource”), which provides for the acquisition by German American Bank of five MainSource Bank branch locations (four in Columbus, Indiana, and one in Greensburg, Indiana), and certain related assets, and the assumption by German American Bank of certain related liabilities.

Pursuant to the Purchase Agreement, German American Bank has agreed to assume approximately $160 million in deposits and purchase approximately $134 million in loans associated with the five bank branches. German American Bank has agreed to pay a purchase price equal to the sum of: (i) 8.0% of the balances of certain checking accounts and other demand withdrawal accounts (excluding governmental accounts with public funds); (ii) 4.5% of the balances of governmental accounts with public funds, excluding time deposits; (iii) 4.5% of the balances of money market and savings deposits, excluding governmental accounts with public funds; (iv) the net book value of all assets, including loans but excluding any accrued interest on such loans; and (v) the accrued interest with respect to purchased loans. The purchase price will be adjusted to reflect increases or decreases in the deposit balances during the six month period following the closing date. Upon written notice, German American Bank will also have the ability to put loans back to MainSource Bank during such six month period. The expected premium to be paid for deposits under the Agreement is approximately $8 million. German American Bank is also assuming the obligations of MainSource Bank related to certain leases covering the five bank branches.

With the previously-announced merger of MainSource and First Financial Bancorp having been completed on April 1, 2018 and all necessary regulatory approvals having been received, the transaction is expected to close on May 18, 2018, subject to other customary closing conditions.

Effective April 1, 2018, the legal name of German American Bancorp was changed to German American Bank. The new name corresponds with the trade name already being used by the banking subsidiary and promotes further distinction in nomenclature between the banking subsidiary and the bank holding company, German American Bancorp, Inc.