Allowance for Loan Losses - Change in Allowance for Loan Losses (Details) - USD ($) $ in Thousands	12 Months Ended
Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Changes in the allowance for loan losses
Balance at the beginning of period	$ 35,726	$ 37,066	$ 35,569
Provision charged to operations	11,006	16,435	18,040
Loans charged off	(17,272)	(22,396)	(21,170)
Recoveries of loans previously charged off	4,563	4,621	4,627
Total allowance	34,023	35,726	37,066
Real estate - residential mortgage
Changes in the allowance for loan losses
Balance at the beginning of period	2,371	2,559	2,471
Provision charged to operations	(140)	(127)	7
Loans charged off	(42)	(179)	(82)
Recoveries of loans previously charged off	57	118	163
Total allowance	2,246	2,371	2,559
Real estate - construction
Changes in the allowance for loan losses
Balance at the beginning of period	605	816	94
Provision charged to operations	122	(211)	722
Total allowance	727	605	816
Commercial, financial and agricultural
Changes in the allowance for loan losses
Balance at the beginning of period	7,478	7,393	7,755
Provision charged to operations	(440)	413	(481)
Loans charged off	(409)	(349)	(87)
Recoveries of loans previously charged off	59	21	206
Total allowance	6,688	7,478	7,393
Equity lines
Changes in the allowance for loan losses
Balance at the beginning of period	688	685	1,052
Provision charged to operations	418	43	(310)
Loans charged off		(42)	(57)
Recoveries of loans previously charged off		2
Total allowance	1,106	688	685
Consumer Loan
Changes in the allowance for loan losses
Balance at the beginning of period	231	261	243
Provision charged to operations	140	82	63
Loans charged off	(344)	(301)	(281)
Recoveries of loans previously charged off	230	189	236
Total allowance	257	231	261
Consumer Finance
Changes in the allowance for loan losses
Balance at the beginning of period	24,353	25,352	23,954
Provision charged to operations	10,906	16,235	18,039
Loans charged off	(16,477)	(21,525)	(20,663)
Recoveries of loans previously charged off	4,217	4,291	4,022
Total allowance	$ 22,999	$ 24,353	$ 25,352

A valuation allowance for financing receivables that are expected to be uncollectible.

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- Definition

Amount of recovery of financing receivables doubtful of collection that were previously charged off.

+ References

+ Details

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- Definition

A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period.

+ References

No definition available.

+ Details

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- Definition

Amount of direct write-downs of financing receivables charged against the allowance.

+ References

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- Definition

Amount of expense related loan transactions, lease transactions, credit loss from transactions other than loan and lease transactions, and other loss based on assessment of uncollectability from the counterparty to reduce the account to their net realizable value.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
-SubTopic 10
-Section 50
-Paragraph 11B
-Subparagraph (c)(2)
-URI http://asc.fasb.org/extlink&oid=84173941&loc=SL6953423-111524

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 942
-SubTopic 220
-Section S99
-Paragraph 1
-Subparagraph (SX 210.9-04.11)
-URI http://asc.fasb.org/extlink&oid=114873765&loc=SL114874048-224260

Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 28
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=109223946&loc=d3e3602-108585

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