Allowance for Loan and Lease Loss and Credit Quality (Schedule Of Newly Restructured Loans) (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2017	Jun. 30, 2016	Jun. 30, 2017	Jun. 30, 2016
Financing Receivable, Modifications [Line Items]
Total restructured loans, net of deferred fees and costs	$ 10,755	$ 9,519	$ 13,927	$ 9,860
Commercial real estate | Term and Multi-family
Financing Receivable, Modifications [Line Items]
Total restructured loans, net of deferred fees and costs		5,450		5,659
Commercial | Term, net
Financing Receivable, Modifications [Line Items]
Total restructured loans, net of deferred fees and costs	9,874	3,396	12,793	3,396
Residential | Mortgage
Financing Receivable, Modifications [Line Items]
Total restructured loans, net of deferred fees and costs	881	596	1,134	728
Consumer & other, net
Financing Receivable, Modifications [Line Items]
Total restructured loans, net of deferred fees and costs		77		77
Rate Modifications
Financing Receivable, Modifications [Line Items]
Total restructured loans, net of deferred fees and costs	0	0	0	0
Rate Modifications | Commercial real estate | Term and Multi-family
Financing Receivable, Modifications [Line Items]
Total restructured loans, net of deferred fees and costs		0		0
Rate Modifications | Commercial | Term, net
Financing Receivable, Modifications [Line Items]
Total restructured loans, net of deferred fees and costs	0	0	0	0
Rate Modifications | Residential | Mortgage
Financing Receivable, Modifications [Line Items]
Total restructured loans, net of deferred fees and costs	0	0	0	0
Rate Modifications | Consumer & other, net
Financing Receivable, Modifications [Line Items]
Total restructured loans, net of deferred fees and costs		0		0
Term Modifications
Financing Receivable, Modifications [Line Items]
Total restructured loans, net of deferred fees and costs	0	0	0	0
Term Modifications | Commercial real estate | Term and Multi-family
Financing Receivable, Modifications [Line Items]
Total restructured loans, net of deferred fees and costs		0		0
Term Modifications | Commercial | Term, net
Financing Receivable, Modifications [Line Items]
Total restructured loans, net of deferred fees and costs	0	0	0	0
Term Modifications | Residential | Mortgage
Financing Receivable, Modifications [Line Items]
Total restructured loans, net of deferred fees and costs	0	0		0
Term Modifications | Consumer & other, net
Financing Receivable, Modifications [Line Items]
Total restructured loans, net of deferred fees and costs		0		0
Interest Only Modifications
Financing Receivable, Modifications [Line Items]
Total restructured loans, net of deferred fees and costs	0	0	0	0
Interest Only Modifications | Commercial real estate | Term and Multi-family
Financing Receivable, Modifications [Line Items]
Total restructured loans, net of deferred fees and costs		0		0
Interest Only Modifications | Commercial | Term, net
Financing Receivable, Modifications [Line Items]
Total restructured loans, net of deferred fees and costs	0	0	0	0
Interest Only Modifications | Residential | Mortgage
Financing Receivable, Modifications [Line Items]
Total restructured loans, net of deferred fees and costs	0	0	0	0
Interest Only Modifications | Consumer & other, net
Financing Receivable, Modifications [Line Items]
Total restructured loans, net of deferred fees and costs		0		0
Payment Modifications
Financing Receivable, Modifications [Line Items]
Total restructured loans, net of deferred fees and costs	0	0	0	0
Payment Modifications | Commercial real estate | Term and Multi-family
Financing Receivable, Modifications [Line Items]
Total restructured loans, net of deferred fees and costs		0		0
Payment Modifications | Commercial | Term, net
Financing Receivable, Modifications [Line Items]
Total restructured loans, net of deferred fees and costs	0	0	0	0
Payment Modifications | Residential | Mortgage
Financing Receivable, Modifications [Line Items]
Total restructured loans, net of deferred fees and costs	0	0	0	0
Payment Modifications | Consumer & other, net
Financing Receivable, Modifications [Line Items]
Total restructured loans, net of deferred fees and costs		0		0
Combination Modifications
Financing Receivable, Modifications [Line Items]
Total restructured loans, net of deferred fees and costs	10,755	9,519	13,927	9,860
Combination Modifications | Commercial real estate | Term and Multi-family
Financing Receivable, Modifications [Line Items]
Total restructured loans, net of deferred fees and costs		5,450		5,659
Combination Modifications | Commercial | Term, net
Financing Receivable, Modifications [Line Items]
Total restructured loans, net of deferred fees and costs	9,874	3,396	12,793	3,396
Combination Modifications | Residential | Mortgage
Financing Receivable, Modifications [Line Items]
Total restructured loans, net of deferred fees and costs	$ 881	596	$ 1,134	728
Combination Modifications | Consumer & other, net
Financing Receivable, Modifications [Line Items]
Total restructured loans, net of deferred fees and costs		$ 77		$ 77