Fair Values of Financial Instruments (Details) - USD ($) $ in Thousands		Jun. 30, 2022	Dec. 31, 2021
Assets [Abstract]
Securities available for sale		$ 859,704	$ 1,412,830
Securities held to maturity		381,608	0
Federal Home Loan Bank and Federal Reserve Bank Stock		17,653	18,427
Liabilities [Abstract]
Other borrowings		25,507	30,009
Subordinated debt		39,395	39,357
Subordinated debentures		39,626	39,592
Reciprocal deposits included in deposits with no stated maturity		585,376	562,210
Reciprocal deposits included in deposits with stated maturity		29,828	24,416
Recorded Book Balance [Member]
Assets [Abstract]
Cash and due from banks		56,516	51,069
Interest bearing deposits		2,970	58,404
Securities available for sale		859,704	1,412,830
Securities held to maturity		381,608
Federal Home Loan Bank and Federal Reserve Bank Stock		17,653	18,427
Net loans and loans held for sale		3,242,367	2,948,074
Accrued interest receivable		13,923	12,865
Derivative financial instruments		27,417	12,283
Liabilities [Abstract]
Deposits with no stated maturity	[1]	3,904,324	3,781,298
Deposits with stated maturity	[1]	386,250	335,792
Other borrowings		25,507	30,009
Subordinated debt		39,395	39,357
Subordinated debentures		39,626	39,592
Accrued interest payable		588	497
Derivative financial instruments		14,997	5,961
Fair Value [Member]
Assets [Abstract]
Cash and due from banks		56,516	51,069
Interest bearing deposits		2,970	58,404
Securities available for sale		859,704	1,412,830
Securities held to maturity		359,701
Net loans and loans held for sale		2,991,614	2,931,079
Accrued interest receivable		13,923	12,865
Derivative financial instruments		27,417	12,283
Liabilities [Abstract]
Deposits with no stated maturity		3,904,324	3,781,298
Deposits with stated maturity		381,095	336,006
Other borrowings		25,506	30,155
Subordinated debt		42,464	44,999
Subordinated debentures		38,034	33,866
Accrued interest payable		588	497
Derivative financial instruments		14,997	5,961
Quoted Prices in Active Markets for Identical Assets (Level 1) [Member]
Assets [Abstract]
Cash and due from banks		56,516	51,069
Interest bearing deposits		2,970	58,404
Securities available for sale		0	0
Securities held to maturity		0
Net loans and loans held for sale		0	35,233
Accrued interest receivable		0	1
Derivative financial instruments		0	0
Liabilities [Abstract]
Deposits with no stated maturity		3,904,324	3,781,298
Deposits with stated maturity		0	0
Other borrowings		0	0
Subordinated debt		0	0
Subordinated debentures		0	0
Accrued interest payable		73	67
Derivative financial instruments		0	0
Significant Other Observable Inputs (Level 2) [Member]
Assets [Abstract]
Cash and due from banks		0	0
Interest bearing deposits		0	0
Securities available for sale		859,704	1,412,830
Securities held to maturity		359,701
Net loans and loans held for sale		31,400	55,470
Accrued interest receivable		6,228	6,028
Derivative financial instruments		27,417	12,283
Liabilities [Abstract]
Deposits with no stated maturity		0	0
Deposits with stated maturity		381,095	336,006
Other borrowings		25,506	30,155
Subordinated debt		42,464	44,999
Subordinated debentures		38,034	33,866
Accrued interest payable		515	430
Derivative financial instruments		14,997	5,961
Significant Unobservable Inputs (Level 3) [Member]
Assets [Abstract]
Cash and due from banks		0	0
Interest bearing deposits		0	0
Securities available for sale		0	0
Securities held to maturity		0
Net loans and loans held for sale		2,960,214	2,840,376
Accrued interest receivable		7,695	6,836
Derivative financial instruments		0	0
Liabilities [Abstract]
Deposits with no stated maturity		0	0
Deposits with stated maturity		0	0
Other borrowings		0	0
Subordinated debt		0	0
Subordinated debentures		0	0
Accrued interest payable		0	0
Derivative financial instruments		$ 0	$ 0

[1] Deposits with no stated maturity include reciprocal deposits with a recorded book balance of $585.376 million and $562.210 million at June 30, 2022 and December 31, 2021, respectively. Deposits with a stated maturity include reciprocal deposits with a recorded book balance of $29.828 million and $24.416 million at June 30, 2022 and December 31, 2021, respectively.