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Loans and Allowance for Credit Losses - Summary of Purchased Credit Deteriorated (PCD) Loans (Details) - USD ($) $ in Thousands		6 Months Ended	12 Months Ended
	Feb. 22, 2021	Jun. 30, 2022	Dec. 31, 2021
Delta Bancshares Company
Summary Of Purchased Credit Deteriorated Loans [Line Items]
Purchase price of purchase credit deteriorated loans at acquisition		$ 18,796
Allowance for credit losses at acquisition		(863)
Non-credit discount/(premium) at acquisition		(523)
Fair value of purchased credit deteriorated loans at acquisition		$ 17,410
LINCO Bancshares, Inc.
Summary Of Purchased Credit Deteriorated Loans [Line Items]
Purchase price of purchase credit deteriorated loans at acquisition			$ 64,647
Allowance for credit losses at acquisition	$ (2,000)		(2,074)
Non-credit discount/(premium) at acquisition			(187)
Fair value of purchased credit deteriorated loans at acquisition			$ 62,386

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Summary of purchased credit deteriorated loans.

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Amount of allowance for credit loss at acquisition date of financing receivable purchased with credit deterioration.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 326
-SubTopic 20
-Section 50
-Paragraph 19
-Subparagraph (b)
-URI https://asc.fasb.org/extlink&oid=124255953&loc=SL82919265-210447

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Amount at par value of financing receivable purchased with credit deterioration.

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Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 326
-SubTopic 20
-Section 50
-Paragraph 19
-Subparagraph (d)
-URI https://asc.fasb.org/extlink&oid=124255953&loc=SL82919265-210447

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Amount at purchase price of financing receivable purchased with credit deterioration.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 326
-SubTopic 20
-Section 50
-Paragraph 19
-Subparagraph (a)
-URI https://asc.fasb.org/extlink&oid=124255953&loc=SL82919265-210447

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Amount of discount (premium) attributable to other factors on financing receivable purchased with credit deterioration.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 326
-SubTopic 20
-Section 50
-Paragraph 19
-Subparagraph (c)
-URI https://asc.fasb.org/extlink&oid=124255953&loc=SL82919265-210447

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