Fair Value Measurement (Fair Value Assets And Liabilities Measured On Nonrecurring Basis) (Details) - Fair Value, Measurements, Nonrecurring - USD ($) $ in Thousands	Sep. 30, 2017	Dec. 31, 2016
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Assets, nonrecurring	$ 59,044	$ 28,365
Level 1
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Assets, nonrecurring	0	0
Level 2
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Assets, nonrecurring	0	0
Level 3
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Assets, nonrecurring	59,044	28,365
Loans and leases
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Assets, nonrecurring	58,976	25,753
Loans and leases | Level 1
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Assets, nonrecurring	0	0
Loans and leases | Level 2
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Assets, nonrecurring	0	0
Loans and leases | Level 3
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Assets, nonrecurring	58,976	25,753
Other real estate owned
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Assets, nonrecurring	68	2,612
Other real estate owned | Level 1
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Assets, nonrecurring	0	0
Other real estate owned | Level 2
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Assets, nonrecurring	0	0
Other real estate owned | Level 3
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Assets, nonrecurring	$ 68	$ 2,612