Loans and Leases and the Allowance for Loan and Lease Losses (Troubled Debt Restructuring & Narrative) (Details 6) $ in Thousands	3 Months Ended	12 Months Ended
Mar. 31, 2019 USD ($) contract	Mar. 31, 2018 USD ($) contract	Dec. 31, 2018 USD ($)
Information related to loans modified as a TDR
Recorded Investment	$ 57,600		$ 54,000
Available Commitments to Lend Additional Funds on Loans Modified as TDR	$ 100		$ 200
Number of Contracts \| contract	160	180
Recorded Investment (as of period end)	$ 6,487	$ 3,341
Increase in Allowance (as of period end)	$ 45	$ 61
Residential Mortgage \| Maximum
Information related to loans modified as a TDR
Period of Time Loan Being Fully Amortized	40 years
Land Loan \| Maximum
Information related to loans modified as a TDR
Period of Time Loan Being Fully Amortized	360 months
Extending Balloon Payments	5 years
Commercial
Information related to loans modified as a TDR
Number of Contracts \| contract	4	1
Recorded Investment (as of period end)	$ 4,018	$ 503
Increase in Allowance (as of period end)	$ 5	$ 0
Commercial \| Commercial and Industrial
Information related to loans modified as a TDR
Number of Contracts \| contract	3	1
Recorded Investment (as of period end)	$ 111	$ 503
Increase in Allowance (as of period end)	$ 5	$ 0
Commercial \| Commercial Mortgage
Information related to loans modified as a TDR
Number of Contracts \| contract	1	0
Recorded Investment (as of period end)	$ 3,907	$ 0
Increase in Allowance (as of period end)	$ 0	$ 0
Consumer
Information related to loans modified as a TDR
Number of Contracts \| contract	156	179
Recorded Investment (as of period end)	$ 2,469	$ 2,838
Increase in Allowance (as of period end)	$ 40	$ 61
Consumer \| Residential Mortgage
Information related to loans modified as a TDR
Number of Contracts \| contract	0	1
Recorded Investment (as of period end)	$ 0	$ 112
Increase in Allowance (as of period end)	$ 0	$ 0
Consumer \| Automobile
Information related to loans modified as a TDR
Number of Contracts \| contract	117	98
Recorded Investment (as of period end)	$ 2,240	$ 2,179
Increase in Allowance (as of period end)	$ 34	$ 47
Consumer \| Other
Information related to loans modified as a TDR
Number of Contracts \| contract	39	80
Recorded Investment (as of period end)	$ 229	$ 547
Increase in Allowance (as of period end)	$ 6	$ 14

Available commitments under revolving credit lines that have been modified as TDRs.

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Period of modification related to loans that have been modified in a troubled debt restructuring where the balloon payment is extended.

+ References

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+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
-SubTopic 10
-Section 50
-Paragraph 33
-URI http://asc.fasb.org/extlink&oid=84173941&loc=SL6953676-111524

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Post-modification amount of investment in financing receivables modified by troubled debt restructurings.

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Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
-SubTopic 40
-Section 50
-Paragraph 4
-URI http://asc.fasb.org/extlink&oid=82895541&loc=d3e18845-111554

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