Allowance for Loan and Lease Losses (Note Restructurings During Period) (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 30, 2014 loans	Sep. 30, 2013 loans	Sep. 30, 2014 loans	Sep. 30, 2013 loans
Originated Loans
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modifications, Number of Contracts	40	23	180	138
Financing Receivable, Modifications, Post-Modification Recorded Investment	$ 5,344	$ 4,619	$ 27,743	$ 27,427
Financing Receivable, Modifications, Subsequent Default, Number of Contracts	5	15	12	17
Financing Receivable, Modifications, Subsequent Default, Recorded Investment	283	6,765	2,313	7,556
Originated Loans | Interest Only Loan
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modifications, Number of Contracts	0	1	11	13
Financing Receivable, Modifications, Post-Modification Recorded Investment	0	203	2,995	4,373
Financing Receivable, Modifications, Subsequent Default, Number of Contracts	0	0	2	0
Financing Receivable, Modifications, Subsequent Default, Recorded Investment	0	0	592	0
Originated Loans | Loan Term Extension
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modifications, Number of Contracts	8	8	42	25
Financing Receivable, Modifications, Post-Modification Recorded Investment	764	2,983	7,274	6,501
Financing Receivable, Modifications, Subsequent Default, Number of Contracts	0	4	0	6
Financing Receivable, Modifications, Subsequent Default, Recorded Investment	0	1,303	0	2,094
Originated Loans | Below Market Interest Rate
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modifications, Number of Contracts	28	11	101	65
Financing Receivable, Modifications, Post-Modification Recorded Investment	4,468	1,308	15,313	13,903
Financing Receivable, Modifications, Subsequent Default, Number of Contracts	2	7	5	7
Financing Receivable, Modifications, Subsequent Default, Recorded Investment	221	5,371	1,371	5,371
Originated Loans | Discharge of Debt
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modifications, Number of Contracts	4	3	26	35
Financing Receivable, Modifications, Post-Modification Recorded Investment	112	125	2,161	2,650
Financing Receivable, Modifications, Subsequent Default, Number of Contracts	3	4	5	4
Financing Receivable, Modifications, Subsequent Default, Recorded Investment	62	91	350	91
Originated Loans | Commercial | Interest Only Loan | Mortgage
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modifications, Number of Contracts			6	9
Financing Receivable, Modifications, Post-Modification Recorded Investment			2,449	3,242
Financing Receivable, Modifications, Subsequent Default, Number of Contracts			2	0
Financing Receivable, Modifications, Subsequent Default, Recorded Investment			592	0
Originated Loans | Commercial | Interest Only Loan | Other commercial real estate
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modifications, Number of Contracts			0	1
Financing Receivable, Modifications, Post-Modification Recorded Investment			0	98
Financing Receivable, Modifications, Subsequent Default, Number of Contracts			0	0
Financing Receivable, Modifications, Subsequent Default, Recorded Investment			0	0
Originated Loans | Commercial | Interest Only Loan | Commercial and industrial
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modifications, Number of Contracts	0	1	2	2
Financing Receivable, Modifications, Post-Modification Recorded Investment	0	203	375	403
Financing Receivable, Modifications, Subsequent Default, Number of Contracts	0	0	0	0
Financing Receivable, Modifications, Subsequent Default, Recorded Investment	0	0	0	0
Originated Loans | Commercial | Interest Only Loan | Lease financing
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modifications, Number of Contracts			2	0
Financing Receivable, Modifications, Post-Modification Recorded Investment			131	0
Financing Receivable, Modifications, Subsequent Default, Number of Contracts			0	0
Financing Receivable, Modifications, Subsequent Default, Recorded Investment			0
Originated Loans | Commercial | Interest Only Loan | Other
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modifications, Number of Contracts			1	0
Financing Receivable, Modifications, Post-Modification Recorded Investment			40	0
Financing Receivable, Modifications, Subsequent Default, Number of Contracts			0	0
Financing Receivable, Modifications, Subsequent Default, Recorded Investment			0	0
Originated Loans | Commercial | Loan Term Extension | Construction and land development
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modifications, Number of Contracts			2	0
Financing Receivable, Modifications, Post-Modification Recorded Investment			189	0
Financing Receivable, Modifications, Subsequent Default, Number of Contracts			0	0
Financing Receivable, Modifications, Subsequent Default, Recorded Investment			0	0
Originated Loans | Commercial | Loan Term Extension | Mortgage
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modifications, Number of Contracts	1	5	11	12
Financing Receivable, Modifications, Post-Modification Recorded Investment	462	2,372	4,072	4,935
Financing Receivable, Modifications, Subsequent Default, Number of Contracts	0	4	0	5
Financing Receivable, Modifications, Subsequent Default, Recorded Investment	0	1,303	0	1,524
Originated Loans | Commercial | Loan Term Extension | Commercial and industrial
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modifications, Number of Contracts			4	2
Financing Receivable, Modifications, Post-Modification Recorded Investment			2,040	623
Financing Receivable, Modifications, Subsequent Default, Number of Contracts			0	0
Financing Receivable, Modifications, Subsequent Default, Recorded Investment			0	0
Originated Loans | Commercial | Loan Term Extension | Lease financing
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modifications, Number of Contracts			2	0
Financing Receivable, Modifications, Post-Modification Recorded Investment			144	0
Financing Receivable, Modifications, Subsequent Default, Number of Contracts			0	0
Financing Receivable, Modifications, Subsequent Default, Recorded Investment			0	0
Originated Loans | Commercial | Below Market Interest Rate | Construction and land development
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modifications, Number of Contracts	0	1	10	2
Financing Receivable, Modifications, Post-Modification Recorded Investment	0	45	371	265
Financing Receivable, Modifications, Subsequent Default, Number of Contracts	0	0	0	0
Financing Receivable, Modifications, Subsequent Default, Recorded Investment	0	0	0	0
Originated Loans | Commercial | Below Market Interest Rate | Mortgage
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modifications, Number of Contracts	6	4	29	29
Financing Receivable, Modifications, Post-Modification Recorded Investment	3,062	859	11,399	10,248
Financing Receivable, Modifications, Subsequent Default, Number of Contracts	1	5	3	5
Financing Receivable, Modifications, Subsequent Default, Recorded Investment	176	5,125	1,276	5,125
Originated Loans | Commercial | Below Market Interest Rate | Other commercial real estate
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modifications, Number of Contracts			1	3
Financing Receivable, Modifications, Post-Modification Recorded Investment			347	738
Financing Receivable, Modifications, Subsequent Default, Number of Contracts			0	0
Financing Receivable, Modifications, Subsequent Default, Recorded Investment				0
Originated Loans | Commercial | Below Market Interest Rate | Commercial and industrial
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modifications, Number of Contracts	3	0	11	4
Financing Receivable, Modifications, Post-Modification Recorded Investment	462	0	772	829
Financing Receivable, Modifications, Subsequent Default, Number of Contracts	0	1	0	1
Financing Receivable, Modifications, Subsequent Default, Recorded Investment	0	173	0	173
Originated Loans | Commercial | Discharge of Debt | Mortgage
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modifications, Number of Contracts	1	0	2	0
Financing Receivable, Modifications, Post-Modification Recorded Investment	0	0	970	0
Financing Receivable, Modifications, Subsequent Default, Number of Contracts	1	0	1	0
Financing Receivable, Modifications, Subsequent Default, Recorded Investment	0	0	0	0
Originated Loans | Noncommerical | Interest Only Loan | Mortgage
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modifications, Number of Contracts			0	1
Financing Receivable, Modifications, Post-Modification Recorded Investment			0	630
Financing Receivable, Modifications, Subsequent Default, Number of Contracts			0	0
Financing Receivable, Modifications, Subsequent Default, Recorded Investment			0	0
Originated Loans | Noncommerical | Interest Only Loan | Lease financing
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modifications, Subsequent Default, Recorded Investment				0
Originated Loans | Noncommerical | Loan Term Extension | Mortgage
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modifications, Number of Contracts	3	2	15	9
Financing Receivable, Modifications, Post-Modification Recorded Investment	80	590	532	879
Financing Receivable, Modifications, Subsequent Default, Number of Contracts	0	0	0	1
Financing Receivable, Modifications, Subsequent Default, Recorded Investment	0	0	0	570
Originated Loans | Noncommerical | Loan Term Extension | Construction and land development
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modifications, Number of Contracts	2	0	3	0
Financing Receivable, Modifications, Post-Modification Recorded Investment	141	0	175	0
Financing Receivable, Modifications, Subsequent Default, Number of Contracts	0	0	0	0
Financing Receivable, Modifications, Subsequent Default, Recorded Investment	0	0	0	0
Originated Loans | Noncommerical | Loan Term Extension | Consumer
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modifications, Number of Contracts	2	1	5	2
Financing Receivable, Modifications, Post-Modification Recorded Investment	81	21	122	64
Financing Receivable, Modifications, Subsequent Default, Number of Contracts	0	0	0	0
Financing Receivable, Modifications, Subsequent Default, Recorded Investment	0	0	0	0
Originated Loans | Noncommerical | Below Market Interest Rate | Mortgage
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modifications, Number of Contracts	11	1	29	14
Financing Receivable, Modifications, Post-Modification Recorded Investment	609	319	1,402	826
Financing Receivable, Modifications, Subsequent Default, Number of Contracts	1	0	2	0
Financing Receivable, Modifications, Subsequent Default, Recorded Investment	45	0	95	0
Originated Loans | Noncommerical | Below Market Interest Rate | Other commercial real estate
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modifications, Subsequent Default, Recorded Investment			0
Originated Loans | Noncommerical | Below Market Interest Rate | Construction and land development
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modifications, Number of Contracts	3	2	11	4
Financing Receivable, Modifications, Post-Modification Recorded Investment	173	42	590	555
Financing Receivable, Modifications, Subsequent Default, Number of Contracts	0	0	0	0
Financing Receivable, Modifications, Subsequent Default, Recorded Investment	0	0	0	0
Originated Loans | Noncommerical | Below Market Interest Rate | Revolving mortgage
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modifications, Number of Contracts	0	3	5	6
Financing Receivable, Modifications, Post-Modification Recorded Investment	0	43	270	215
Financing Receivable, Modifications, Subsequent Default, Number of Contracts	0	1	0	1
Financing Receivable, Modifications, Subsequent Default, Recorded Investment	0	73	0	73
Originated Loans | Noncommerical | Below Market Interest Rate | Consumer
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modifications, Number of Contracts	5	0	5	3
Financing Receivable, Modifications, Post-Modification Recorded Investment	162	0	162	227
Financing Receivable, Modifications, Subsequent Default, Number of Contracts	0	0	0	0
Financing Receivable, Modifications, Subsequent Default, Recorded Investment	0	0	0	0
Originated Loans | Noncommerical | Discharge of Debt | Mortgage
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modifications, Number of Contracts	0	0	9	4
Financing Receivable, Modifications, Post-Modification Recorded Investment	0	0	691	130
Financing Receivable, Modifications, Subsequent Default, Number of Contracts	0	2	2	2
Financing Receivable, Modifications, Subsequent Default, Recorded Investment	0	44	288	44
Originated Loans | Noncommerical | Discharge of Debt | Construction and land development
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modifications, Number of Contracts	0	0	1	0
Financing Receivable, Modifications, Post-Modification Recorded Investment	0	0	62	0
Financing Receivable, Modifications, Subsequent Default, Number of Contracts	1	0	1	0
Financing Receivable, Modifications, Subsequent Default, Recorded Investment	62	0	62	0
Originated Loans | Noncommerical | Discharge of Debt | Revolving mortgage
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modifications, Number of Contracts	2	3	10	31
Financing Receivable, Modifications, Post-Modification Recorded Investment	99	125	420	2,520
Financing Receivable, Modifications, Subsequent Default, Number of Contracts	1	2	1	2
Financing Receivable, Modifications, Subsequent Default, Recorded Investment	0	47	0	47
Originated Loans | Noncommerical | Discharge of Debt | Consumer
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modifications, Number of Contracts	1	0	4	0
Financing Receivable, Modifications, Post-Modification Recorded Investment	13	0	18	0
Financing Receivable, Modifications, Subsequent Default, Number of Contracts	0	0	0	0
Financing Receivable, Modifications, Subsequent Default, Recorded Investment	0	0	0	0
Acquired Loans
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modifications, Number of Contracts	10	3	77	42
Financing Receivable, Modifications, Post-Modification Recorded Investment	3,952	569	12,228	26,104
Financing Receivable, Modifications, Subsequent Default, Number of Contracts	4	10	12	14
Financing Receivable, Modifications, Subsequent Default, Recorded Investment	448	6,025	519	8,718
Acquired Loans | Interest Only Loan
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modifications, Number of Contracts	0	0	2	6
Financing Receivable, Modifications, Post-Modification Recorded Investment	0	0	44	3,892
Financing Receivable, Modifications, Subsequent Default, Number of Contracts	0	1	2	3
Financing Receivable, Modifications, Subsequent Default, Recorded Investment	0	2,628	44	4,618
Acquired Loans | Loan Term Extension
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modifications, Number of Contracts	1	2	3	9
Financing Receivable, Modifications, Post-Modification Recorded Investment	348	278	670	3,914
Financing Receivable, Modifications, Subsequent Default, Number of Contracts	3	1	4	1
Financing Receivable, Modifications, Subsequent Default, Recorded Investment	381	198	381	198
Acquired Loans | Below Market Interest Rate
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modifications, Number of Contracts	9	1	46	27
Financing Receivable, Modifications, Post-Modification Recorded Investment	3,604	291	9,841	18,298
Financing Receivable, Modifications, Subsequent Default, Number of Contracts	1	8	4	10
Financing Receivable, Modifications, Subsequent Default, Recorded Investment	67	3,199	94	3,902
Acquired Loans | Discharge of Debt
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modifications, Number of Contracts	0	0	26	0
Financing Receivable, Modifications, Post-Modification Recorded Investment	0	0	1,673	0
Financing Receivable, Modifications, Subsequent Default, Number of Contracts	0	0	2	0
Financing Receivable, Modifications, Subsequent Default, Recorded Investment	0	0	0	0
Acquired Loans | Commercial | Interest Only Loan | Construction and land development
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modifications, Number of Contracts	0	0	0	1
Financing Receivable, Modifications, Post-Modification Recorded Investment	0	0	0	2,628
Financing Receivable, Modifications, Subsequent Default, Number of Contracts	0	1	0	1
Financing Receivable, Modifications, Subsequent Default, Recorded Investment	0	2,628	0	2,628
Acquired Loans | Commercial | Interest Only Loan | Mortgage
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modifications, Number of Contracts			2	2
Financing Receivable, Modifications, Post-Modification Recorded Investment			44	1,060
Financing Receivable, Modifications, Subsequent Default, Number of Contracts			2	2
Financing Receivable, Modifications, Subsequent Default, Recorded Investment			44	1,990
Acquired Loans | Commercial | Interest Only Loan | Commercial and industrial
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modifications, Number of Contracts			0	1
Financing Receivable, Modifications, Post-Modification Recorded Investment			0	23
Financing Receivable, Modifications, Subsequent Default, Number of Contracts			0	0
Financing Receivable, Modifications, Subsequent Default, Recorded Investment			0	0
Acquired Loans | Commercial | Loan Term Extension | Construction and land development
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modifications, Number of Contracts	1	0	2	5
Financing Receivable, Modifications, Post-Modification Recorded Investment	348	0	348	2,517
Financing Receivable, Modifications, Subsequent Default, Number of Contracts	0	0	0	0
Financing Receivable, Modifications, Subsequent Default, Recorded Investment	0	0	0	0
Acquired Loans | Commercial | Loan Term Extension | Mortgage
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modifications, Number of Contracts	0	1	0	1
Financing Receivable, Modifications, Post-Modification Recorded Investment	0	157	0	157
Financing Receivable, Modifications, Subsequent Default, Number of Contracts	0	0	0	0
Financing Receivable, Modifications, Subsequent Default, Recorded Investment	0	0	0	0
Acquired Loans | Commercial | Loan Term Extension | Commercial and industrial
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modifications, Number of Contracts	0	1	0	2
Financing Receivable, Modifications, Post-Modification Recorded Investment	0	121	0	1,042
Financing Receivable, Modifications, Subsequent Default, Number of Contracts	0	0	0	0
Financing Receivable, Modifications, Subsequent Default, Recorded Investment	0	0	0	0
Acquired Loans | Commercial | Below Market Interest Rate | Construction and land development
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modifications, Number of Contracts	0	0	2	5
Financing Receivable, Modifications, Post-Modification Recorded Investment	0	0	308	3,489
Financing Receivable, Modifications, Subsequent Default, Number of Contracts	0	2	0	2
Financing Receivable, Modifications, Subsequent Default, Recorded Investment	0	1,067	0	1,067
Acquired Loans | Commercial | Below Market Interest Rate | Mortgage
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modifications, Number of Contracts	6	1	15	9
Financing Receivable, Modifications, Post-Modification Recorded Investment	3,377	291	5,539	11,428
Financing Receivable, Modifications, Subsequent Default, Number of Contracts	1	2	2	2
Financing Receivable, Modifications, Subsequent Default, Recorded Investment	67	1,290	94	1,290
Acquired Loans | Commercial | Below Market Interest Rate | Commercial and industrial
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modifications, Number of Contracts			0	3
Financing Receivable, Modifications, Post-Modification Recorded Investment			0	510
Financing Receivable, Modifications, Subsequent Default, Number of Contracts			0	0
Financing Receivable, Modifications, Subsequent Default, Recorded Investment			0	0
Acquired Loans | Noncommerical | 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	181
Financing Receivable, Modifications, Subsequent Default, Number of Contracts			0	0
Financing Receivable, Modifications, Subsequent Default, Recorded Investment			0	0
Acquired Loans | Noncommerical | Loan Term Extension | Mortgage
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modifications, Number of Contracts	0	0	1	1
Financing Receivable, Modifications, Post-Modification Recorded Investment	0	0	322	198
Financing Receivable, Modifications, Subsequent Default, Number of Contracts	3	1	4	1
Financing Receivable, Modifications, Subsequent Default, Recorded Investment	381	198	381	198
Acquired Loans | Noncommerical | Below Market Interest Rate | Mortgage
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modifications, Number of Contracts	3	0	29	10
Financing Receivable, Modifications, Post-Modification Recorded Investment	227	0	3,994	2,871
Financing Receivable, Modifications, Subsequent Default, Number of Contracts	0	4	2	6
Financing Receivable, Modifications, Subsequent Default, Recorded Investment	0	842	0	1,545
Acquired Loans | Noncommerical | Discharge of Debt | Mortgage
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modifications, Number of Contracts	0	0	26	0
Financing Receivable, Modifications, Post-Modification Recorded Investment	0	0	1,673	0
Financing Receivable, Modifications, Subsequent Default, Number of Contracts	0	0	2	0
Financing Receivable, Modifications, Subsequent Default, Recorded Investment	$ 0	$ 0	$ 0	$ 0