Loans (Summary of TDRs) (Details) - USD ($) $ in Thousands	Dec. 31, 2018	Dec. 31, 2017
Financing Receivable, Modifications [Line Items]
Total TDRs	$ 73,655	$ 77,888
Commercial Loan Portfolio
Financing Receivable, Modifications [Line Items]
Total TDRs	56,851	58,842
Consumer Loan Portfolio
Financing Receivable, Modifications [Line Items]
Total TDRs	16,804	19,046
Accruing TDRs
Financing Receivable, Modifications [Line Items]
Total TDRs	45,580	48,782
Accruing TDRs | Commercial Loan Portfolio
Financing Receivable, Modifications [Line Items]
Total TDRs	32,508	34,484
Accruing TDRs | Consumer Loan Portfolio
Financing Receivable, Modifications [Line Items]
Total TDRs	13,072	14,298
Nonaccrual TDRs
Financing Receivable, Modifications [Line Items]
Total TDRs	28,075	29,106
Nonaccrual TDRs | Commercial Loan Portfolio
Financing Receivable, Modifications [Line Items]
Total TDRs	24,343	24,358
Nonaccrual TDRs | Consumer Loan Portfolio
Financing Receivable, Modifications [Line Items]
Total TDRs	$ 3,732	$ 4,748