Business Combinations (Consideration Paid and Recognized Amounts of Assets Acquired and Liabilities Assumed) (Details) - USD ($) $ in Thousands	Jul. 01, 2019	Sep. 30, 2019	Dec. 31, 2018
Recognized Amounts of Identifiable Assets Acquired and Liabilities Assumed:
Goodwill		$ 120,835	$ 103,681
Citizens First
Consideration
Cash for Options and Fractional Shares	$ 216
Cash Consideration	15,294
Equity Instruments	50,118
Fair Value of Total Consideration Transferred	65,628
Recognized Amounts of Identifiable Assets Acquired and Liabilities Assumed:
Cash	21,055
Interest-bearing Time Deposits with Banks	2,231
Securities	43,839
Loans	357,896
Stock in FHLB of Indianapolis and Other Restricted Stock, at Cost	2,065
Premises, Furniture & Equipment	10,339
Other Real Estate	0
Intangible Assets	4,547
Company Owned Life Insurance	8,796
Accrued Interest Receivable and Other Assets	3,715
Deposits - Non-interest Bearing	(52,521)
Deposits - Interest Bearing	(318,966)
FHLB Advances and Other Borrowings	(30,913)
Accrued Interest Payable and Other Liabilities	(3,491)
Total Identifiable Net Assets	48,592
Goodwill	$ 17,036