Loans and Leases - Accruing and Nonaccruing Troubled Debt Restructured Loans with Payment Defaults (Details) $ in Thousands	3 Months Ended	9 Months Ended
Sep. 30, 2018 USD ($) loan	Sep. 30, 2017 USD ($) loan	Sep. 30, 2018 USD ($) loan	Sep. 30, 2017 USD ($) loan
Accrual Troubled Debt Restructuring Loans [Member]
Accruing and nonaccrual troubled debt restructured loans with payment default
Number of Loans \| loan	0	0	0	0
Recorded Investment \| $	$ 0	$ 0	$ 0	$ 0
Nonaccrual Troubled Debt Restructuring Loans [Member]
Accruing and nonaccrual troubled debt restructured loans with payment default
Number of Loans \| loan	0	0	1	0
Recorded Investment \| $	$ 0	$ 0	$ 953	$ 0
Nonaccrual Troubled Debt Restructuring Loans [Member] \| Commercial, Financial and Agricultural [Member]
Accruing and nonaccrual troubled debt restructured loans with payment default
Number of Loans \| loan	0	0	1	0
Recorded Investment \| $	$ 0	$ 0	$ 953	$ 0

Number of financing receivables that have been modified by troubled debt restructurings within the previous 12 months and for which there was a payment default.

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
-SubTopic 10
-Section 50
-Paragraph 34
-URI http://asc.fasb.org/extlink&oid=84173941&loc=SL6953682-111524

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- Definition

Amount of investment related to financing receivables modified by troubled debt restructurings within the previous 12 months, for which there was a payment default.

+ References

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- Definition

Accruing and nonaccrual troubled debt restructured loans for which there was a payment default in the current reporting period and within 12 months following restructuring.

+ References

No definition available.

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