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Loans and Leases Receivable, Related Parties, as a Percent of Shareholder's Equity

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Loans in Process of Foreclosure

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Amount of financing receivable on nonaccrual status with no allowance for credit loss.

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Carrying amount as of the balance sheet date of interest earned but not received. Also called accrued interest or accrued interest receivable.

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Amount of unfunded portion of contractual agreement to lend funds to borrower for financing receivable modified as troubled debt restructuring.

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For an unclassified balance sheet, reflects the carrying amount of unpaid loan amounts due from related parties at the balance sheet date.

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Amount, before allowance for credit loss, of financing receivable.

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LOANS AND ALLOWANCE FOR LOAN LOSSES - Narrative (Details) - USD ($)	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Financing Receivable, Allowance for Credit Loss [Line Items]
Loans to related parties	$ 32,200,000	$ 33,800,000
Loans for which formal foreclosure proceedings were in process	1,200,000	992,000
Loans, Nonaccrual, Interest Income Reversal	193,000
Nonaccrual loans, no allowance	2,200,000
Collateral-dependent loans	11,500,000
Commitments to lend additional funds on TDRs	0	0	$ 0
Interest receivable	$ 38,708,000	$ 28,452,000
Related party loans as a percent of stockholders' equity	3.70%	4.20%
Loans	$ 3,657,779,000	$ 3,568,204,000
COVID-19 Payment Deferral
Financing Receivable, Allowance for Credit Loss [Line Items]
Loans	47,200,000
Loans Receivable
Financing Receivable, Allowance for Credit Loss [Line Items]
Interest receivable	16,400,000	14,200,000
1-4 family residential real estate loans
Financing Receivable, Allowance for Credit Loss [Line Items]
Loans	$ 719,952,000	787,562,000
1-4 family residential real estate loans \| Minimum
Financing Receivable, Allowance for Credit Loss [Line Items]
General loan term	5 years
1-4 family residential real estate loans \| Maximum
Financing Receivable, Allowance for Credit Loss [Line Items]
General loan term	30 years
Commercial real estate loans
Financing Receivable, Allowance for Credit Loss [Line Items]
Loans secured by owner and non-owner occupied commercial real estate	$ 1,180,000,000
Loans secured by multi-family properties	97,900,000
Loans secured by farmland	$ 15,000,000.0
General loan term	20 years
Loans	$ 1,295,746,000	1,250,208,000
Construction real estate loans
Financing Receivable, Allowance for Credit Loss [Line Items]
Loans	581,941,000	$ 644,948,000
Paycheck Protection Program
Financing Receivable, Allowance for Credit Loss [Line Items]
Loans	$ 214,800,000