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Purchased Loans - Impact of Modifications Classified as Restructured Loans (Details) - Purchased loans $ in Thousands | 3 Months Ended | 9 Months Ended
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Sep. 30, 2021 USD ($) loan | Sep. 30, 2022 USD ($) loan | Sep. 30, 2021 USD ($) loan
Restructured loans |  |  |
Number of Loans | loan | 1 |  | 3
Pre- Modification Amortized Cost | $ 164 |  | $ 1,161
Post- Modification Amortized Cost | $ 164 |  | $ 1,161
Real estate – 1-4 family mortgage: | Land development |  |  |
Restructured loans |  |  |
Number of Loans | loan |  | 3 |
Pre- Modification Amortized Cost |  | $ 98 |
Post- Modification Amortized Cost |  | $ 94 |
Real estate – 1-4 family mortgage: | Primary |  |  |
Restructured loans |  |  |
Number of Loans | loan | 1 |  | 2
Pre- Modification Amortized Cost | $ 164 |  | $ 1,026
Post- Modification Amortized Cost | $ 164 |  | $ 1,026
Commercial, financial, agricultural |  |  |
Restructured loans |  |  |
Number of Loans | loan |  |  | 1
Pre- Modification Amortized Cost |  |  | $ 135
Post- Modification Amortized Cost |  |  | $ 135

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- Definition Troubled Debt Restructuring Financing Receivable Modifications [Abstract] + References No definition available. + Details
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- Definition Number of financing receivables that have been modified by troubled debt restructurings. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 33 -URI https://asc.fasb.org/extlink&oid=123577603&loc=SL6953676-111524 + Details
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- Definition Amount, after troubled debt restructuring, of modified financing receivable. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 33 -URI https://asc.fasb.org/extlink&oid=123577603&loc=SL6953676-111524 + Details
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- Definition Amount, before troubled debt restructuring, of financing receivable to be modified. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 33 -URI https://asc.fasb.org/extlink&oid=123577603&loc=SL6953676-111524 + Details
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