Fair Value Measurements - Other Real Estate Owned and Repossessed Assets (Details) - Nonrecurring - USD ($) $ in Thousands	3 Months Ended
Mar. 31, 2022	Mar. 31, 2021
Fair value
Fair Value Measurements
Impaired loans	$ 15,365	$ 27,075
Other real estate and repossessed assets	9,758	12,140
Fair value \| Commercial, Financial, & Agricultural
Fair Value Measurements
Impaired loans		4,188
Fair value \| Residential real estate \| Mortgages
Fair Value Measurements
Impaired loans		403
Fair value \| Commercial real estate \| Mortgages
Fair Value Measurements
Impaired loans	15,365	22,484
Total Gains (Losses)
Fair Value Measurements
Gains (losses) on impaired loans	(23)	(23)
Gains (losses) on other real estate owned and repossessed assets	(45)	(73)
Total Gains (Losses) \| Commercial, Financial, & Agricultural
Fair Value Measurements
Gains (losses) on impaired loans		0
Total Gains (Losses) \| Residential real estate \| Mortgages
Fair Value Measurements
Gains (losses) on impaired loans		0
Total Gains (Losses) \| Commercial real estate \| Mortgages
Fair Value Measurements
Gains (losses) on impaired loans	(23)	(23)
Level 1 \| Fair value
Fair Value Measurements
Impaired loans	0	0
Other real estate and repossessed assets	0	0
Level 1 \| Fair value \| Commercial, Financial, & Agricultural
Fair Value Measurements
Impaired loans		0
Level 1 \| Fair value \| Residential real estate \| Mortgages
Fair Value Measurements
Impaired loans		0
Level 1 \| Fair value \| Commercial real estate \| Mortgages
Fair Value Measurements
Impaired loans	0	0
Level 2 \| Fair value
Fair Value Measurements
Impaired loans	0	0
Other real estate and repossessed assets	0	0
Level 2 \| Fair value \| Commercial, Financial, & Agricultural
Fair Value Measurements
Impaired loans		0
Level 2 \| Fair value \| Residential real estate \| Mortgages
Fair Value Measurements
Impaired loans		0
Level 2 \| Fair value \| Commercial real estate \| Mortgages
Fair Value Measurements
Impaired loans	0	0
Level 3 \| Fair value
Fair Value Measurements
Impaired loans	15,365	27,075
Other real estate and repossessed assets	9,758	12,140
Level 3 \| Fair value \| Commercial, Financial, & Agricultural
Fair Value Measurements
Impaired loans		4,188
Level 3 \| Fair value \| Residential real estate \| Mortgages
Fair Value Measurements
Impaired loans		403
Level 3 \| Fair value \| Commercial real estate \| Mortgages
Fair Value Measurements
Impaired loans	$ 15,365	$ 22,484

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- Definition

Represents the amount of gains (losses) arising due to the change in fair value of other real estate owned and repossessed assets.

+ References

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- Definition

Represents the portion of impaired loans receivable that are valued at fair value by the entity.

+ References

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- Definition

Represents the portion of other impaired loans receivable that are valued at fair value by the entity.

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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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