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Loan and Lease Receivables, Impaired Loans and Leases and Allowance for Loan and Lease Losses (Troubled Debt Restructurings) (Details) - Commercial and industrial $ in Thousands	3 Months Ended
	Mar. 31, 2019 USD ($) loans
Troubled debt restructurings
Number of loans | loans	4
Pre-Modification Recorded Investment	$ 2,077
Post-Modification Recorded Investment	$ 2,077

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Financing Receivable, Modifications, Post-Modification Recorded Investment3

+ References

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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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- Definition

Number of financing receivables that have been modified by troubled debt restructurings.

+ 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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