Allowance for Loan and Lease Loss and Credit Quality (Schedule Of Average Recorded Investment And Interest Income Recognized) (Details) - USD ($) $ in Thousands	3 Months Ended	9 Months Ended
Sep. 30, 2017	Sep. 30, 2016	Sep. 30, 2017	Sep. 30, 2016
Financing Receivable, Impaired [Line Items]
Average recorded investment	$ 67,908	$ 58,386	$ 61,657	$ 58,568
Interest income recognized	299	371	1,161	1,066
Commercial real estate \| Non-owner occupied term, net
Financing Receivable, Impaired [Line Items]
Average recorded investment	18,706	18,544	17,220	12,634
Interest income recognized	149	155	447	350
Commercial real estate \| Owner occupied term, net
Financing Receivable, Impaired [Line Items]
Average recorded investment	10,159	3,682	9,556	7,950
Interest income recognized	14	0	141	86
Commercial real estate \| Multifamily, net
Financing Receivable, Impaired [Line Items]
Average recorded investment	3,890	4,209	3,914	3,792
Interest income recognized	30	31	91	91
Commercial real estate \| Construction & development, net
Financing Receivable, Impaired [Line Items]
Average recorded investment	1,091	1,860	1,201	1,412
Interest income recognized	0	21	22	61
Commercial real estate \| Residential development, net
Financing Receivable, Impaired [Line Items]
Average recorded investment	7,096	7,671	7,270	7,871
Interest income recognized	13	77	163	238
Commercial \| Term, net
Financing Receivable, Impaired [Line Items]
Average recorded investment	19,269	17,884	16,048	21,223
Interest income recognized	88	67	242	180
Commercial \| LOC & other, net
Financing Receivable, Impaired [Line Items]
Average recorded investment	7,560	4,536	6,263	3,686
Interest income recognized	5	20	55	60
Commercial \| Leases and equipment finance, net
Financing Receivable, Impaired [Line Items]
Average recorded investment	137	0	185	0
Interest income recognized	$ 0	$ 0	$ 0	$ 0

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Amount of average investment of impaired financing receivables for which there is no related allowance for credit losses.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
-SubTopic 10
-Section 50
-Paragraph 17
-URI http://asc.fasb.org/extlink&oid=84173941&loc=d3e5258-111524

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
-SubTopic 10
-Section 50
-Paragraph 15
-Subparagraph (c)(1)
-URI http://asc.fasb.org/extlink&oid=84173941&loc=d3e5212-111524

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- Definition

Amount of interest income, recognized on accrual basis, on financing receivables that are recognized as impaired, for which there is no related allowance for credit losses.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
-SubTopic 10
-Section 50
-Paragraph 15
-Subparagraph (c)(2)
-URI http://asc.fasb.org/extlink&oid=84173941&loc=d3e5212-111524

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