Allowance for Loan and Lease Losses and Unfunded Loan Commitments and Letters of Credit (Allowance for Noncovered Loan and Lease Losses) (Details) (USD $) In Thousands	3 Months Ended	6 Months Ended
Jun. 30, 2011	Jun. 30, 2010	Jun. 30, 2011	Jun. 30, 2010
Beginning Balance	$ 55,315	$ 56,981	$ 60,993	$ 53,478
Loans charged off	(4,758)	(11,073)	(11,781)	(23,926)
Recoveries	1,350	340	2,695	1,696
Provision	2,150	13,500	2,150	28,500
Ending balance	54,057	59,748	54,057	59,748
Commercial Business [Member] \| Secured Debt [Member] \| Noncovered Loans [Member]
Beginning Balance	22,307		21,811
Loans charged off	(834)		(4,121)
Recoveries	233		329
Provision	614		4,301
Ending balance	22,320		22,320
Specific Reserve	330		330
General Allocation	21,990		21,990
Commercial Business [Member] \| Unsecured Debt [Member] \| Noncovered Loans [Member]
Beginning Balance	618		738
Loans charged off	0		(84)
Recoveries	359		368
Provision	(404)		(449)
Ending balance	573		573
Specific Reserve	72		72
General Allocation	501		501
Real Estate 1-4 Family [Member] \| Residential RE Perm [Member] \| Noncovered Loans [Member]
Beginning Balance	1,100		1,100
Loans charged off	(216)		(664)
Recoveries	0		0
Provision	(37)		411
Ending balance	847		847
Specific Reserve	0		0
General Allocation	847		847
Real Estate Commercial & Multifamily [Member] \| Commercial RE Land [Member] \| Noncovered Loans [Member]
Beginning Balance	555		634
Loans charged off	(656)		(656)
Recoveries	0		0
Provision	995		916
Ending balance	894		894
Specific Reserve	0		0
General Allocation	894		894
Real Estate Commercial & Multifamily [Member] \| Income Property Multifamily Perm [Member] \| Noncovered Loans [Member]
Beginning Balance	12,297		15,210
Loans charged off	(275)		(640)
Recoveries	13		55
Provision	2,674		84
Ending balance	14,709		14,709
Specific Reserve	301		301
General Allocation	14,408		14,408
Real Estate Commercial & Multifamily [Member] \| Owner Occupied RE Perm [Member] \| Noncovered Loans [Member]
Beginning Balance	10,412		9,692
Loans charged off	(623)		(623)
Recoveries	0		31
Provision	(3,310)		(2,621)
Ending balance	6,479		6,479
Specific Reserve	286		286
General Allocation	6,193		6,193
Construction 1-4 Family [Member] \| Land & Acquisition [Member] \| Noncovered Loans [Member]
Beginning Balance	3,295		3,769
Loans charged off	(410)		(1,178)
Recoveries	700		1,768
Provision	(733)		(1,507)
Ending balance	2,852		2,852
Specific Reserve	148		148
General Allocation	2,704		2,704
Construction 1-4 Family [Member] \| Residential Construction [Member] \| Noncovered Loans [Member]
Beginning Balance	2,118		2,292
Loans charged off	(395)		(1,054)
Recoveries	0		36
Provision	(19)		430
Ending balance	1,704		1,704
Specific Reserve	0		0
General Allocation	1,704		1,704
Construction Commercial & Multifamily [Member] \| Income Property Multifamily Construction [Member] \| Noncovered Loans [Member]
Beginning Balance	127		274
Loans charged off	(1,078)		(1,565)
Recoveries	0		0
Provision	994		1,334
Ending balance	43		43
Specific Reserve	0		0
General Allocation	43		43
Construction Commercial & Multifamily [Member] \| Owner Occupied RE Construction [Member] \| Noncovered Loans [Member]
Beginning Balance	68		70
Loans charged off	0		0
Recoveries	0		0
Provision	(34)		(36)
Ending balance	34		34
Specific Reserve	0		0
General Allocation	34		34
Consumer [Member] \| Noncovered Loans [Member]
Beginning Balance	2,418		2,120
Loans charged off	(271)		(1,196)
Recoveries	45		108
Provision	556		1,716
Ending balance	2,748		2,748
Specific Reserve	161		161
General Allocation	2,587		2,587
Noncovered Loans [Member]
Beginning Balance	55,315		60,993
Loans charged off	(4,758)		(11,781)
Recoveries	1,350		2,695
Provision	2,150		2,150
Ending balance	54,057		54,057
Specific Reserve	1,298		1,298
General Allocation	52,759		52,759
Noncovered Loans [Member] \| Unallocated [Member]
Beginning Balance	0		3,283
Loans charged off	0		0
Recoveries	0		0
Provision	854		(2,429)
Ending balance	854		854
Specific Reserve	0		0
General Allocation	$ 854		$ 854

Reflects the gross amount charged against earnings during the period as credit losses (bad debt expense) based on review of the loan and lease portfolio and application of the methodology for estimating credit losses.

+ References+ Details

Reflects a reduction in bad debt expense attributable to collections of loans and lease receivables which had previously been fully or partially charged off as bad debts.

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- Definition

Reflects the amount of loans and leases that have been removed, or charged off, from both loan receivables and the reserve for credit losses, typically because they are considered to be not salvageable or have been purchased by unconsolidated collection entities.

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- Definition

The allowance for loan and lease losses represents the reserve to cover probable credit losses related to specifically identified loans and leases, as well as probable credit losses inherent in the remainder of the loan portfolio as of the balance sheet date. For banks, include currently required allocated transfer risk reserves. Include carryover of or adjustments to the allowance for loan losses in connection with business combinations determined to be appropriate.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher OTS
-Name Federal Regulation (FR)
-Number Title 12
-Chapter V
-Section 563c.102
-Paragraph 8
-Subparagraph a(ii)
-Subsection I
-LegacyDoc This is a non-GAAP reference that was included in the 2009 taxonomy. It will be removed from future versions of this taxonomy.

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher SEC
-Name Staff Accounting Bulletin (SAB)
-Number Topic 6
-Section L
-Subsection 1

Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 114
-Paragraph 20
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 4: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 942
-SubTopic 210
-Section S99
-Paragraph 1
-Subparagraph (SX 210.9-03.7(d))
-URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878

Reference 5: http://www.xbrl.org/2003/role/presentationRef
-Publisher SEC
-Name Regulation S-X (SX)
-Number 210
-Article 9
-Section 03
-Paragraph 7
-Subparagraph d

Reference 6: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 5
-Paragraph 8, 9
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 7: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
-SubTopic 30
-Section 50
-Paragraph 2
-Subparagraph (b)(1)(ii)
-URI http://asc.fasb.org/extlink&oid=6379141&loc=d3e15032-111544

+ Details