CONSOLIDATED STATEMENTS OF CHANGES IN SHAREHOLDERS' EQUITY - USD ($) $ in Thousands	Total	Common Stock	Additional Paid-in Capital	Retained Earnings	Accumulated Other Comprehensive Income (Loss)
Beginning Balances (in shares) at Dec. 31, 2020		26,502,157
Beginning Balances at Dec. 31, 2020	$ 624,709	$ 26,502	$ 274,385	$ 288,447	$ 35,375
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net Income	19,557			19,557
Other Comprehensive Income (Loss)	(21,828)				(21,828)
Cash Dividends	(5,554)			(5,554)
Issuance of Common Stock for:
Restricted Share Grants (in shares)		44,123
Restricted Share Grants	329	$ 44	285
Ending Balances (in shares) at Mar. 31, 2021		26,546,280
Ending Balances at Mar. 31, 2021	617,213	$ 26,546	274,670	302,450	13,547
Beginning Balances (in shares) at Dec. 31, 2020		26,502,157
Beginning Balances at Dec. 31, 2020	624,709	$ 26,502	274,385	288,447	35,375
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net Income	64,865
Other Comprehensive Income (Loss)	(24,111)
Ending Balances (in shares) at Sep. 30, 2021		26,546,100
Ending Balances at Sep. 30, 2021	650,139	$ 26,546	275,682	336,647	11,264
Beginning Balances (in shares) at Mar. 31, 2021		26,546,280
Beginning Balances at Mar. 31, 2021	617,213	$ 26,546	274,670	302,450	13,547
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net Income	23,822			23,822
Other Comprehensive Income (Loss)	12,878				12,878
Cash Dividends	(5,555)			(5,555)
Issuance of Common Stock for:
Restricted Share Grants (in shares)		(576)
Restricted Share Grants	639		639
Ending Balances (in shares) at Jun. 30, 2021		26,545,704
Ending Balances at Jun. 30, 2021	648,997	$ 26,546	275,309	320,717	26,425
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net Income	21,486			21,486
Other Comprehensive Income (Loss)	(15,161)				(15,161)
Cash Dividends	(5,556)			(5,556)
Issuance of Common Stock for:
Restricted Share Grants (in shares)		396
Restricted Share Grants	373		373
Ending Balances (in shares) at Sep. 30, 2021		26,546,100
Ending Balances at Sep. 30, 2021	$ 650,139	$ 26,546	275,682	336,647	11,264
Beginning Balances (in shares) at Dec. 31, 2021	26,553,508	26,553,508
Beginning Balances at Dec. 31, 2021	$ 668,459	$ 26,554	276,057	350,364	15,484
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net Income	9,067			9,067
Other Comprehensive Income (Loss)	(133,885)				(133,885)
Cash Dividends	(6,752)			(6,752)
Issuance of Common Stock for:
Acquisition of Citizens Union Bancorp of Shelbyville, Inc. (in shares)		2,870,975
Acquisition of Citizens Union Bancorp of Shelbyville, Inc., net	111,723	$ 2,871	108,852
Restricted Share Grants (in shares)		61,200
Restricted Share Grants	424	$ 61	363
Ending Balances (in shares) at Mar. 31, 2022		29,485,683
Ending Balances at Mar. 31, 2022	$ 649,036	$ 29,486	385,272	352,679	(118,401)
Beginning Balances (in shares) at Dec. 31, 2021	26,553,508	26,553,508
Beginning Balances at Dec. 31, 2021	$ 668,459	$ 26,554	276,057	350,364	15,484
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net Income	57,410
Other Comprehensive Income (Loss)	$ (324,542)
Ending Balances (in shares) at Sep. 30, 2022	29,485,121	29,485,121
Ending Balances at Sep. 30, 2022	$ 494,701	$ 29,485	386,764	387,510	(309,058)
Beginning Balances (in shares) at Mar. 31, 2022		29,485,683
Beginning Balances at Mar. 31, 2022	649,036	$ 29,486	385,272	352,679	(118,401)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net Income	23,747			23,747
Other Comprehensive Income (Loss)	(92,694)				(92,694)
Cash Dividends	(6,753)			(6,753)
Issuance of Common Stock for:
Restricted Share Grants (in shares)		(2,638)
Restricted Share Grants	1,093	$ (3)	1,096
Ending Balances (in shares) at Jun. 30, 2022		29,483,045
Ending Balances at Jun. 30, 2022	574,429	$ 29,483	386,368	369,673	(211,095)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net Income	24,596			24,596
Other Comprehensive Income (Loss)	(97,963)				(97,963)
Cash Dividends	(6,759)			(6,759)
Issuance of Common Stock for:
Restricted Share Grants (in shares)		2,076
Restricted Share Grants	$ 398	$ 2	396
Ending Balances (in shares) at Sep. 30, 2022	29,485,121	29,485,121
Ending Balances at Sep. 30, 2022	$ 494,701	$ 29,485	$ 386,764	$ 387,510	$ (309,058)