Loans and Leases - Mortgages in the Process of Foreclosure (Details) - Residential Real Estate [Member] - USD ($) $ in Thousands	Dec. 31, 2016	Dec. 31, 2015
Financing Receivable, Modifications [Line Items]
Mortgage Loans in Process of Foreclosure, Amount	$ 180	$ 373
Real Estate-Residential Secured for Personal Purpose [Member]
Financing Receivable, Modifications [Line Items]
Mortgage Loans in Process of Foreclosure, Amount	0	313
Real Estate-Home Equity Secured for Personal Purpose [Member]
Financing Receivable, Modifications [Line Items]
Mortgage Loans in Process of Foreclosure, Amount	$ 180	$ 60

Recorded investment of consumer mortgage loan receivables secured by residential real estate properties for which formal foreclosure proceedings are in process.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
-SubTopic 10
-Section 50
-Paragraph 35
-URI http://asc.fasb.org/extlink&oid=66008989&loc=SL49126937-111524

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Glossary Recorded Investment
-URI http://asc.fasb.org/extlink&oid=65880944

Name:	us-gaap_MortgageLoansInProcessOfForeclosureAmount
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant