BORROWINGS (Short-Term Borrowings) (Parenthetical) (Details)	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017
Federal Home Loan Bank of Indianapolis Notes, 1.67%, Due June 27, 2018
Debt Instrument [Line Items]
Federal Home Loan Bank, Advances, Branch of FHLB Bank, Interest Rate		1.67%
Federal Home Loan Bank Advances Branch Of Fhlb Bank Due Dates		Jun. 27, 2018
Federal Home Loan Bank of Indianapolis Notes, 6.15%, Due January 16, 2018
Debt Instrument [Line Items]
Federal Home Loan Bank, Advances, Branch of FHLB Bank, Interest Rate		6.15%
Federal Home Loan Bank Advances Branch Of Fhlb Bank Due Dates		Jan. 16, 2018
Federal Home Loan Bank of Indianapolis Notes, 2.52%, Due January 7, 2019
Debt Instrument [Line Items]
Federal Home Loan Bank, Advances, Branch of FHLB Bank, Interest Rate	2.52%
Federal Home Loan Bank Advances Branch Of Fhlb Bank Due Dates	Jan. 07, 2019