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, 2021		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., net (in shares)		2,870,975
Acquisition of Citizens Union Bancorp of Shelbyville, Inc., net	111,723	$ 2,871	108,852
Restricted Share Grants Net (in shares)		61,200
Restricted Share Grants Net	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
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
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 Net (in shares)		(2,638)
Restricted Share Grants Net	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 Net (in shares)		2,076
Restricted Share Grants Net	398	$ 2	396
Ending Balances (in shares) at Sep. 30, 2022		29,485,121
Ending Balances at Sep. 30, 2022	$ 494,701	$ 29,485	386,764	387,510	(309,058)
Beginning Balances (in shares) at Dec. 31, 2022	29,493,193	29,493,193
Beginning Balances at Dec. 31, 2022	$ 558,393	$ 29,493	387,171	405,167	(263,438)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net Income	20,807			20,807
Other Comprehensive Income (Loss)	32,946				32,946
Cash Dividends	(7,354)			(7,354)
Issuance of Common Stock for:
Restricted Share Grants Net (in shares)		80,246
Restricted Share Grants Net	539	$ 80	459
Ending Balances (in shares) at Mar. 31, 2023		29,573,439
Ending Balances at Mar. 31, 2023	$ 605,331	$ 29,573	387,630	418,620	(230,492)
Beginning Balances (in shares) at Dec. 31, 2022	29,493,193	29,493,193
Beginning Balances at Dec. 31, 2022	$ 558,393	$ 29,493	387,171	405,167	(263,438)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net Income	64,381
Other Comprehensive Income (Loss)	$ (64,175)
Ending Balances (in shares) at Sep. 30, 2023	29,575,451	29,575,451
Ending Balances at Sep. 30, 2023	$ 538,392	$ 29,575	388,955	447,475	(327,613)
Beginning Balances (in shares) at Mar. 31, 2023		29,573,439
Beginning Balances at Mar. 31, 2023	605,331	$ 29,573	387,630	418,620	(230,492)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net Income	22,123			22,123
Other Comprehensive Income (Loss)	(18,360)				(18,360)
Cash Dividends	(7,359)			(7,359)
Issuance of Common Stock for:
Restricted Share Grants Net (in shares)		(656)
Restricted Share Grants Net	830		830
Ending Balances (in shares) at Jun. 30, 2023		29,572,783
Ending Balances at Jun. 30, 2023	602,565	$ 29,573	388,460	433,384	(248,852)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net Income	21,451			21,451
Other Comprehensive Income (Loss)	(78,761)				(78,761)
Cash Dividends	(7,360)			(7,360)
Issuance of Common Stock for:
Restricted Share Grants Net (in shares)		2,668
Restricted Share Grants Net	$ 497	$ 2	495
Ending Balances (in shares) at Sep. 30, 2023	29,575,451	29,575,451
Ending Balances at Sep. 30, 2023	$ 538,392	$ 29,575	$ 388,955	$ 447,475	$ (327,613)