Purchased Loans - Average Recorded Investment and Interest Income on Impaired Loans (Details) - USD ($) $ in Thousands	3 Months Ended	9 Months Ended
Sep. 30, 2019	Sep. 30, 2019
Financing Receivable, Allowance for Credit Loss [Line Items]
Average Recorded Investment	$ 9,636	$ 9,561
Interest Income Recognized	43	141
Purchased with deteriorated credit quality
Financing Receivable, Allowance for Credit Loss [Line Items]
Average Recorded Investment	191,110	197,449
Interest Income Recognized	2,456	8,154
Commercial, financial, agricultural \| Purchased loans
Financing Receivable, Allowance for Credit Loss [Line Items]
Average Recorded Investment	2,533	2,312
Interest Income Recognized	2	6
Commercial, financial, agricultural \| Purchased loans \| Purchased with deteriorated credit quality
Financing Receivable, Allowance for Credit Loss [Line Items]
Average Recorded Investment	32,150	35,304
Interest Income Recognized	283	1,145
Real estate – construction: \| Purchased loans
Financing Receivable, Allowance for Credit Loss [Line Items]
Average Recorded Investment	256	256
Interest Income Recognized	0	3
Real estate – construction: \| Purchased loans \| Purchased with deteriorated credit quality
Financing Receivable, Allowance for Credit Loss [Line Items]
Average Recorded Investment	558	560
Interest Income Recognized	8	8
Real estate – 1-4 family mortgage: \| Purchased loans
Financing Receivable, Allowance for Credit Loss [Line Items]
Average Recorded Investment	5,364	5,468
Interest Income Recognized	30	96
Real estate – 1-4 family mortgage: \| Purchased loans \| Purchased with deteriorated credit quality
Financing Receivable, Allowance for Credit Loss [Line Items]
Average Recorded Investment	38,031	38,682
Interest Income Recognized	538	1,699
Real estate – commercial mortgage: \| Purchased loans
Financing Receivable, Allowance for Credit Loss [Line Items]
Average Recorded Investment	1,150	1,185
Interest Income Recognized	11	36
Real estate – commercial mortgage: \| Purchased loans \| Purchased with deteriorated credit quality
Financing Receivable, Allowance for Credit Loss [Line Items]
Average Recorded Investment	117,179	119,327
Interest Income Recognized	1,541	5,015
Installment loans to individuals \| Purchased loans
Financing Receivable, Allowance for Credit Loss [Line Items]
Average Recorded Investment	333	340
Interest Income Recognized	0	0
Installment loans to individuals \| Purchased loans \| Purchased with deteriorated credit quality
Financing Receivable, Allowance for Credit Loss [Line Items]
Average Recorded Investment	3,192	3,576
Interest Income Recognized	$ 86	$ 287

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- Definition

Average amount of investment of impaired financing receivables with related allowance for credit losses and without a related allowance for credit losses.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
-SubTopic 10
-Section 50
-Paragraph 15
-Subparagraph (c)(1)
-URI http://asc.fasb.org/extlink&oid=121611835&loc=d3e5212-111524

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
-SubTopic 10
-Section 50
-Paragraph 17
-URI http://asc.fasb.org/extlink&oid=121611835&loc=d3e5258-111524

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Amount of interest income recognized that the financing receivables (with related allowance for credit losses and without a related allowance for credit losses) were impaired.

+ References

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