Allowance For Non-Covered Loan Loss And Credit Quality (Internal Risk Rating By Loan Class) (Details) (USD $) In Thousands, unless otherwise specified	Mar. 31, 2012	Dec. 31, 2011
Financing Receivable, Modifications [Line Items]
Commercial real estate, Term & multifamily	$ 3,616,386	$ 3,558,295
Commercial real estate, Construction & development	162,866	165,066
Commercial real estate, Residential development	74,604	90,073
Commercial, Term	687,242	625,766
Commercial, LOC & other	764,049	832,999
Residential, Mortgage	345,763	315,927
Residential, Home equity loans & lines	264,662	272,192
Consumer & other	37,082	38,860
Total	5,952,654	5,899,178
Deferred loan fees, net	(11,384)	(11,080)
Total loans and leases	5,941,270	5,888,098
Pass/Watch [Member]
Financing Receivable, Modifications [Line Items]
Commercial real estate, Term & multifamily	3,122,953	3,068,803
Commercial real estate, Construction & development	112,845	109,434
Commercial real estate, Residential development	24,218	24,801
Commercial, Term	643,270	586,365
Commercial, LOC & other	720,055	775,495
Residential, Mortgage	339,934	309,478
Residential, Home equity loans & lines	262,566	268,731
Consumer & other	36,346	38,098
Total	5,262,188	5,181,205
Special Mention [Member]
Financing Receivable, Modifications [Line Items]
Commercial real estate, Term & multifamily	279,216	275,475
Commercial real estate, Construction & development	17,390	19,946
Commercial real estate, Residential development	6,592	6,740
Commercial, Term	18,625	16,631
Commercial, LOC & other	15,759	22,051
Residential, Mortgage	3,448	2,106
Residential, Home equity loans & lines	1,115	683
Consumer & other	252	82
Total	342,397	343,714
Percentage of impaired loans	4.20%
Substandard [Member]
Financing Receivable, Modifications [Line Items]
Commercial real estate, Term & multifamily	145,302	146,919
Commercial real estate, Construction & development	10,617	12,342
Commercial real estate, Residential development	7,252	8,733
Commercial, Term	11,433	9,608
Commercial, LOC & other	18,568	22,706
Residential, Mortgage	229	296
Residential, Home equity loans & lines	488	773
Consumer & other	82	254
Total	193,971	201,631
Percentage of impaired loans	95.80%
Doubtful [Member]
Financing Receivable, Modifications [Line Items]
Commercial real estate, Term & multifamily
Commercial real estate, Construction & development
Commercial real estate, Residential development
Commercial, Term
Commercial, LOC & other
Residential, Mortgage
Residential, Home equity loans & lines
Consumer & other
Total
Deferred loan fees, net
Total loans and leases
Loss [Member]
Financing Receivable, Modifications [Line Items]
Commercial real estate, Term & multifamily
Commercial real estate, Construction & development
Commercial real estate, Residential development
Commercial, Term
Commercial, LOC & other
Residential, Mortgage	2,152	4,047
Residential, Home equity loans & lines	365	1,876
Consumer & other	402	426
Total	2,919	6,349
Deferred loan fees, net
Total loans and leases
Percentage of impaired loans	0.00%
Impaired [Member]
Financing Receivable, Modifications [Line Items]
Commercial real estate, Term & multifamily	68,915	67,098
Commercial real estate, Construction & development	22,014	23,344
Commercial real estate, Residential development	36,542	49,799
Commercial, Term	13,914	13,162
Commercial, LOC & other	9,667	12,747
Residential, Mortgage
Residential, Home equity loans & lines	128	129
Consumer & other
Total	151,180	166,279
Deferred loan fees, net
Total loans and leases

Loans Receivable Commercial LOC and Other

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Loans Receivable Commercial Residential Development

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Loans Receivable Commercial Term

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Loans Receivable Commercial Term and Multifamily

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No definition available.

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Rate Of Classified Impaired Loans

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- Definition

Gross amount under revolving lines of credit outstanding extended to a homeowner and collateralized by the equity in the home. Such lines of credit are generally subordinated to the homeowner's mortgage loan or loans. Loan proceeds are generally unrestricted as to use by the borrower.

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- Definition

The gross carrying amount of mortgage loans to individuals. This item excludes subordinated loans such as home equity lines of credit.

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The gross amount of other loans and leases to individuals not otherwise specified in the existing taxonomy.

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Reflects the cumulative amount of interest and fees paid by borrowers which have not yet been taken into income in conformity with GAAP. Also reflects the amount of unamortized costs incurred to originate loans and leases, unamortized loan commitments and loan syndication fees, and premiums over or discounts from face amounts of acquired loans that are being amortized into income as an adjustment to yield.

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Reflects the aggregate gross carrying amount of all categories of loans and leases held in portfolio, prior to deducting deferred income and the allowance for losses on loans and leases.

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Reflects the aggregate gross carrying amount of all categories of loans and leases held in portfolio, after deducting deferred income, but before deducting the allowance for losses on loans and leases.

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Reflects the gross carrying amount of unpaid loans that had been issued to businesses to construct a facility. Acquisition, development and construction (ADC) loans are generally issued sequentially and the net proceeds of the latest debt is used by the borrower to pay off the preceding loan. A construction loan ( in the form of a promissory note) is generally expected to be paid off with the net proceeds from permanent financing.

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