Allowance for Loan and Lease Losses (Note Restructurings During Period) (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Mar. 31, 2015 loans	Mar. 31, 2014 loans
Non-PCI Loans
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modifications, Number of Contracts	59	61
Financing Receivable, Modifications, Post-Modification Recorded Investment	$ 11,718	$ 13,063
Financing Receivable, Modifications, Subsequent Default, Number of Contracts	8	9
Financing Receivable, Modifications, Subsequent Default, Recorded Investment	4,941	1,315
Non-PCI Loans | Interest Only Loan
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modifications, Number of Contracts	1	7
Financing Receivable, Modifications, Post-Modification Recorded Investment	3,796	2,253
Financing Receivable, Modifications, Subsequent Default, Number of Contracts	1	2
Financing Receivable, Modifications, Subsequent Default, Recorded Investment	3,796	410
Non-PCI Loans | Loan Term Extension
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modifications, Number of Contracts	6	12
Financing Receivable, Modifications, Post-Modification Recorded Investment	770	3,192
Financing Receivable, Modifications, Subsequent Default, Number of Contracts	1	1
Financing Receivable, Modifications, Subsequent Default, Recorded Investment	220	41
Non-PCI Loans | Below Market Interest Rate
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modifications, Number of Contracts	45	28
Financing Receivable, Modifications, Post-Modification Recorded Investment	6,866	5,598
Financing Receivable, Modifications, Subsequent Default, Number of Contracts	4	4
Financing Receivable, Modifications, Subsequent Default, Recorded Investment	778	576
Non-PCI Loans | Discharge of Debt
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modifications, Number of Contracts	7	14
Financing Receivable, Modifications, Post-Modification Recorded Investment	286	2,020
Financing Receivable, Modifications, Subsequent Default, Number of Contracts	2	2
Financing Receivable, Modifications, Subsequent Default, Recorded Investment	147	288
Non-PCI Loans | Commercial | Interest Only Loan | Mortgage
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modifications, Number of Contracts	0	4
Financing Receivable, Modifications, Post-Modification Recorded Investment	0	1,911
Financing Receivable, Modifications, Subsequent Default, Number of Contracts	0	2
Financing Receivable, Modifications, Subsequent Default, Recorded Investment	0	410
Non-PCI Loans | Commercial | Interest Only Loan | Commercial and industrial
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modifications, Number of Contracts	1	1
Financing Receivable, Modifications, Post-Modification Recorded Investment	3,796	196
Financing Receivable, Modifications, Subsequent Default, Number of Contracts	1	0
Financing Receivable, Modifications, Subsequent Default, Recorded Investment	3,796	0
Non-PCI Loans | Commercial | Interest Only Loan | Lease financing
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modifications, Number of Contracts	0	2
Financing Receivable, Modifications, Post-Modification Recorded Investment	0	146
Financing Receivable, Modifications, Subsequent Default, Number of Contracts	0	0
Financing Receivable, Modifications, Subsequent Default, Recorded Investment	0	0
Non-PCI Loans | Commercial | Loan Term Extension | Construction and land development
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modifications, Number of Contracts	1	0
Financing Receivable, Modifications, Post-Modification Recorded Investment	220	0
Financing Receivable, Modifications, Subsequent Default, Number of Contracts	1	0
Financing Receivable, Modifications, Subsequent Default, Recorded Investment	220	0
Non-PCI Loans | Commercial | Loan Term Extension | Mortgage
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modifications, Number of Contracts	3	5
Financing Receivable, Modifications, Post-Modification Recorded Investment	535	2,620
Financing Receivable, Modifications, Subsequent Default, Number of Contracts	0	0
Financing Receivable, Modifications, Subsequent Default, Recorded Investment	0	0
Non-PCI Loans | Commercial | Loan Term Extension | Lease financing
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modifications, Number of Contracts	0	2
Financing Receivable, Modifications, Post-Modification Recorded Investment	0	234
Financing Receivable, Modifications, Subsequent Default, Number of Contracts	0	0
Financing Receivable, Modifications, Subsequent Default, Recorded Investment	0	0
Non-PCI Loans | Commercial | Below Market Interest Rate | Construction and land development
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modifications, Number of Contracts	2	1
Financing Receivable, Modifications, Post-Modification Recorded Investment	47	82
Financing Receivable, Modifications, Subsequent Default, Number of Contracts	0	0
Financing Receivable, Modifications, Subsequent Default, Recorded Investment	0	0
Non-PCI Loans | Commercial | Below Market Interest Rate | Mortgage
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modifications, Number of Contracts	9	12
Financing Receivable, Modifications, Post-Modification Recorded Investment	3,541	4,677
Financing Receivable, Modifications, Subsequent Default, Number of Contracts	2	1
Financing Receivable, Modifications, Subsequent Default, Recorded Investment	733	449
Non-PCI Loans | Commercial | Below Market Interest Rate | Commercial and industrial
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modifications, Number of Contracts	3	2
Financing Receivable, Modifications, Post-Modification Recorded Investment	172	110
Financing Receivable, Modifications, Subsequent Default, Number of Contracts	0	0
Financing Receivable, Modifications, Subsequent Default, Recorded Investment	0	0
Non-PCI Loans | Commercial | Discharge of Debt | Mortgage
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modifications, Number of Contracts	0	1
Financing Receivable, Modifications, Post-Modification Recorded Investment	0	1,003
Financing Receivable, Modifications, Subsequent Default, Number of Contracts	0	0
Financing Receivable, Modifications, Subsequent Default, Recorded Investment	0	0
Non-PCI Loans | Noncommerical | Loan Term Extension | Mortgage
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modifications, Number of Contracts	0	5
Financing Receivable, Modifications, Post-Modification Recorded Investment	0	338
Financing Receivable, Modifications, Subsequent Default, Number of Contracts	0	0
Financing Receivable, Modifications, Subsequent Default, Recorded Investment	0	0
Non-PCI Loans | Noncommerical | Loan Term Extension | Revolving mortgage
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modifications, Number of Contracts	1	0
Financing Receivable, Modifications, Post-Modification Recorded Investment	10	0
Financing Receivable, Modifications, Subsequent Default, Number of Contracts	0	0
Financing Receivable, Modifications, Subsequent Default, Recorded Investment	0
Non-PCI Loans | Noncommerical | Loan Term Extension | Consumer
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modifications, Number of Contracts	1	0
Financing Receivable, Modifications, Post-Modification Recorded Investment	5	0
Financing Receivable, Modifications, Subsequent Default, Number of Contracts	0	1
Financing Receivable, Modifications, Subsequent Default, Recorded Investment	0	41
Non-PCI Loans | Noncommerical | Below Market Interest Rate | Mortgage
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modifications, Number of Contracts	23	8
Financing Receivable, Modifications, Post-Modification Recorded Investment	708	451
Financing Receivable, Modifications, Subsequent Default, Number of Contracts	2	3
Financing Receivable, Modifications, Subsequent Default, Recorded Investment	45	127
Non-PCI Loans | Noncommerical | Below Market Interest Rate | Construction and land development
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modifications, Number of Contracts	2	0
Financing Receivable, Modifications, Post-Modification Recorded Investment	396	0
Financing Receivable, Modifications, Subsequent Default, Number of Contracts	0	0
Financing Receivable, Modifications, Subsequent Default, Recorded Investment	0	0
Non-PCI Loans | Noncommerical | Below Market Interest Rate | Revolving mortgage
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modifications, Number of Contracts	2	5
Financing Receivable, Modifications, Post-Modification Recorded Investment	18	278
Financing Receivable, Modifications, Subsequent Default, Number of Contracts	0	0
Financing Receivable, Modifications, Subsequent Default, Recorded Investment	0	0
Non-PCI Loans | Noncommerical | Below Market Interest Rate | Consumer
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modifications, Number of Contracts	3	0
Financing Receivable, Modifications, Post-Modification Recorded Investment	34	0
Financing Receivable, Modifications, Subsequent Default, Number of Contracts	0	0
Financing Receivable, Modifications, Subsequent Default, Recorded Investment	0	0
Non-PCI Loans | Noncommerical | Below Market Interest Rate | Other
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modifications, Number of Contracts	1	0
Financing Receivable, Modifications, Post-Modification Recorded Investment	1,950	0
Financing Receivable, Modifications, Subsequent Default, Number of Contracts	0	0
Financing Receivable, Modifications, Subsequent Default, Recorded Investment	0	0
Non-PCI Loans | Noncommerical | Discharge of Debt | Mortgage
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modifications, Number of Contracts	2	7
Financing Receivable, Modifications, Post-Modification Recorded Investment	68	708
Financing Receivable, Modifications, Subsequent Default, Number of Contracts	0	2
Financing Receivable, Modifications, Subsequent Default, Recorded Investment	0	288
Non-PCI Loans | Noncommerical | Discharge of Debt | Construction and land development
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modifications, Number of Contracts	0	1
Financing Receivable, Modifications, Post-Modification Recorded Investment	0	62
Financing Receivable, Modifications, Subsequent Default, Number of Contracts	0	0
Financing Receivable, Modifications, Subsequent Default, Recorded Investment	0	0
Non-PCI Loans | Noncommerical | Discharge of Debt | Revolving mortgage
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modifications, Number of Contracts	5	4
Financing Receivable, Modifications, Post-Modification Recorded Investment	218	229
Financing Receivable, Modifications, Subsequent Default, Number of Contracts	2	0
Financing Receivable, Modifications, Subsequent Default, Recorded Investment	147	0
Non-PCI Loans | Noncommerical | Discharge of Debt | Consumer
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modifications, Number of Contracts	0	1
Financing Receivable, Modifications, Post-Modification Recorded Investment	0	18
Financing Receivable, Modifications, Subsequent Default, Number of Contracts	0	0
Financing Receivable, Modifications, Subsequent Default, Recorded Investment	0	0
PCI Loans
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modifications, Number of Contracts	7	9
Financing Receivable, Modifications, Post-Modification Recorded Investment	470	21,765
Financing Receivable, Modifications, Subsequent Default, Number of Contracts	1	4
Financing Receivable, Modifications, Subsequent Default, Recorded Investment	65	47,718
PCI Loans | Interest Only Loan
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modifications, Number of Contracts	0	2
Financing Receivable, Modifications, Post-Modification Recorded Investment	0	15,906
Financing Receivable, Modifications, Subsequent Default, Number of Contracts	0	2
Financing Receivable, Modifications, Subsequent Default, Recorded Investment	0	15,906
PCI Loans | Loan Term Extension
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modifications, Number of Contracts	0	1
Financing Receivable, Modifications, Post-Modification Recorded Investment	0	281
Financing Receivable, Modifications, Subsequent Default, Number of Contracts	0	0
Financing Receivable, Modifications, Subsequent Default, Recorded Investment	0	0
PCI Loans | Below Market Interest Rate
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modifications, Number of Contracts	7	6
Financing Receivable, Modifications, Post-Modification Recorded Investment	470	5,578
Financing Receivable, Modifications, Subsequent Default, Number of Contracts	1	2
Financing Receivable, Modifications, Subsequent Default, Recorded Investment	65	31,812
PCI Loans | Commercial | Interest Only Loan | Mortgage
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modifications, Number of Contracts	0	2
Financing Receivable, Modifications, Post-Modification Recorded Investment	0	15,906
Financing Receivable, Modifications, Subsequent Default, Number of Contracts	0	2
Financing Receivable, Modifications, Subsequent Default, Recorded Investment	0	15,906
PCI Loans | Commercial | Loan Term Extension | Construction and land development
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modifications, Number of Contracts	0	1
Financing Receivable, Modifications, Post-Modification Recorded Investment	0	281
Financing Receivable, Modifications, Subsequent Default, Number of Contracts	0	0
Financing Receivable, Modifications, Subsequent Default, Recorded Investment	0	0
PCI Loans | Commercial | Below Market Interest Rate | Construction and land development
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modifications, Number of Contracts	0	1
Financing Receivable, Modifications, Post-Modification Recorded Investment	0	37
Financing Receivable, Modifications, Subsequent Default, Number of Contracts	0	0
Financing Receivable, Modifications, Subsequent Default, Recorded Investment	0	0
PCI Loans | Commercial | Below Market Interest Rate | Mortgage
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modifications, Number of Contracts	0	4
Financing Receivable, Modifications, Post-Modification Recorded Investment	0	5,439
Financing Receivable, Modifications, Subsequent Default, Number of Contracts	0	1
Financing Receivable, Modifications, Subsequent Default, Recorded Investment	0	47
PCI Loans | Commercial | Below Market Interest Rate | Commercial and industrial
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modifications, Number of Contracts	0	0
Financing Receivable, Modifications, Post-Modification Recorded Investment	0	0
Financing Receivable, Modifications, Subsequent Default, Number of Contracts	1	0
Financing Receivable, Modifications, Subsequent Default, Recorded Investment	65	0
PCI Loans | Noncommerical | Below Market Interest Rate | Mortgage
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modifications, Number of Contracts	7	1
Financing Receivable, Modifications, Post-Modification Recorded Investment	470	102
Financing Receivable, Modifications, Subsequent Default, Number of Contracts	0	1
Financing Receivable, Modifications, Subsequent Default, Recorded Investment	$ 0	$ 436