Purchased Loans - Restructured Loans by Class (Details) - Purchased loans $ in Thousands	12 Months Ended
Dec. 31, 2021 USD ($) loan	Dec. 31, 2020 USD ($) loan	Dec. 31, 2019 USD ($) loan
Accounts, Notes, Loans and Financing Receivable [Line Items]
Number of Loans \| loan	3	13	5
Pre-Modification Outstanding Recorded Investment	$ 1,161	$ 5,262	$ 2,931
Post-Modification Outstanding Recorded Investment	$ 1,161	$ 4,896	$ 2,927
Commercial, financial, agricultural
Accounts, Notes, Loans and Financing Receivable [Line Items]
Number of Loans \| loan	1	1	2
Pre-Modification Outstanding Recorded Investment	$ 135	$ 1,029	$ 2,778
Post-Modification Outstanding Recorded Investment	$ 135	$ 1,031	$ 2,778
Real Estate - 1-4 Family Mortgage
Accounts, Notes, Loans and Financing Receivable [Line Items]
Number of Loans \| loan		5	2
Pre-Modification Outstanding Recorded Investment		$ 493	$ 73
Post-Modification Outstanding Recorded Investment		$ 389	$ 73
Real Estate - 1-4 Family Mortgage \| Primary
Accounts, Notes, Loans and Financing Receivable [Line Items]
Number of Loans \| loan	2	4
Pre-Modification Outstanding Recorded Investment	$ 1,026	$ 334
Post-Modification Outstanding Recorded Investment	$ 1,026	$ 227
Real Estate - 1-4 Family Mortgage \| Home equity
Accounts, Notes, Loans and Financing Receivable [Line Items]
Number of Loans \| loan		1
Pre-Modification Outstanding Recorded Investment		$ 159
Post-Modification Outstanding Recorded Investment		$ 162
Real estate – commercial mortgage
Accounts, Notes, Loans and Financing Receivable [Line Items]
Number of Loans \| loan		6	1
Pre-Modification Outstanding Recorded Investment		$ 3,715	$ 80
Post-Modification Outstanding Recorded Investment		$ 3,457	$ 76
Real estate – commercial mortgage \| Owner-occupied
Accounts, Notes, Loans and Financing Receivable [Line Items]
Number of Loans \| loan		5
Pre-Modification Outstanding Recorded Investment		$ 3,173
Post-Modification Outstanding Recorded Investment		$ 2,913
Real estate – commercial mortgage \| Non-owner occupied
Accounts, Notes, Loans and Financing Receivable [Line Items]
Number of Loans \| loan		1
Pre-Modification Outstanding Recorded Investment		$ 542
Post-Modification Outstanding Recorded Investment		$ 544
Installment loans to individuals
Accounts, Notes, Loans and Financing Receivable [Line Items]
Number of Loans \| loan		1
Pre-Modification Outstanding Recorded Investment		$ 25
Post-Modification Outstanding Recorded Investment		$ 19

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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 http://asc.fasb.org/extlink&oid=123577603&loc=SL6953676-111524

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Amount, before troubled debt restructuring, of financing receivable to be modified.

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