Allowance for Loan and Lease Losses (Note Restructurings During Period) (Details) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2015 USD ($) loans	Jun. 30, 2014 USD ($) loans	Jun. 30, 2015 USD ($) loans	Jun. 30, 2014 USD ($) loans
PCI Loans
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modifications, Number of Contracts | loans	1	31	9	67
Financing Receivable, Modifications, Post-Modification Recorded Investment	$ 60	$ 5,123	$ 623	$ 10,614
Financing Receivable, Modifications, Subsequent Default, Number of Contracts | loans	0	2	0	8
Financing Receivable, Modifications, Subsequent Default, Recorded Investment	$ 0	$ 76	$ 0	$ 253
PCI Loans | Loan term extension
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modifications, Number of Contracts | loans	0	1	0	2
Financing Receivable, Modifications, Post-Modification Recorded Investment	$ 0	$ 53	$ 0	$ 329
Financing Receivable, Modifications, Subsequent Default, Number of Contracts | loans	0	1	0	1
Financing Receivable, Modifications, Subsequent Default, Recorded Investment	$ 0	$ 53	$ 0	$ 53
PCI Loans | Loan term extension | Commercial | Construction and land development
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modifications, Number of Contracts | loans			0	1
Financing Receivable, Modifications, Post-Modification Recorded Investment			$ 0	$ 276
Financing Receivable, Modifications, Subsequent Default, Number of Contracts | loans			0	0
Financing Receivable, Modifications, Subsequent Default, Recorded Investment			$ 0	$ 0
PCI Loans | Loan term extension | Noncommerical | Mortgage
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modifications, Number of Contracts | loans	0	1	0	1
Financing Receivable, Modifications, Post-Modification Recorded Investment	$ 0	$ 53	$ 0	$ 53
Financing Receivable, Modifications, Subsequent Default, Number of Contracts | loans	0	1	0	1
Financing Receivable, Modifications, Subsequent Default, Recorded Investment	$ 0	$ 53	$ 0	$ 53
PCI Loans | Interest only period provided
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modifications, Number of Contracts | loans			0	2
Financing Receivable, Modifications, Post-Modification Recorded Investment			$ 0	$ 0
Financing Receivable, Modifications, Subsequent Default, Number of Contracts | loans			0	2
Financing Receivable, Modifications, Subsequent Default, Recorded Investment			$ 0	$ 44
PCI Loans | Interest only period provided | Commercial | Mortgage
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modifications, Number of Contracts | loans			0	2
Financing Receivable, Modifications, Post-Modification Recorded Investment			$ 0	$ 0
Financing Receivable, Modifications, Subsequent Default, Number of Contracts | loans			0	2
Financing Receivable, Modifications, Subsequent Default, Recorded Investment			$ 0	$ 44
PCI Loans | Below market interest rate
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modifications, Number of Contracts | loans	1	30	8	37
Financing Receivable, Modifications, Post-Modification Recorded Investment	$ 60	$ 5,070	$ 545	$ 8,457
Financing Receivable, Modifications, Subsequent Default, Number of Contracts | loans	0	1	0	3
Financing Receivable, Modifications, Subsequent Default, Recorded Investment	$ 0	$ 23	$ 0	$ 62
PCI Loans | Below market interest rate | Commercial | Construction and land development
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modifications, Number of Contracts | loans	0	1	0	2
Financing Receivable, Modifications, Post-Modification Recorded Investment	$ 0	$ 273	$ 0	$ 308
Financing Receivable, Modifications, Subsequent Default, Number of Contracts | loans	0	0	0	0
Financing Receivable, Modifications, Subsequent Default, Recorded Investment	$ 0	$ 0	$ 0	$ 0
PCI Loans | Below market interest rate | Commercial | Mortgage
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modifications, Number of Contracts | loans	0	5	0	9
Financing Receivable, Modifications, Post-Modification Recorded Investment	$ 0	$ 1,811	$ 0	$ 5,060
Financing Receivable, Modifications, Subsequent Default, Number of Contracts | loans	0	0	0	1
Financing Receivable, Modifications, Subsequent Default, Recorded Investment	$ 0	$ 0	$ 0	$ 39
PCI Loans | Below market interest rate | Commercial | Commercial and industrial
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modifications, Number of Contracts | loans	0	1	0	1
Financing Receivable, Modifications, Post-Modification Recorded Investment	$ 0	$ 23	$ 0	$ 23
Financing Receivable, Modifications, Subsequent Default, Number of Contracts | loans	0	0	0	0
Financing Receivable, Modifications, Subsequent Default, Recorded Investment	$ 0	$ 0	$ 0	$ 0
PCI Loans | Below market interest rate | Noncommerical | Mortgage
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modifications, Number of Contracts | loans	1	23	8	25
Financing Receivable, Modifications, Post-Modification Recorded Investment	$ 60	$ 2,963	$ 545	$ 3,066
Financing Receivable, Modifications, Subsequent Default, Number of Contracts | loans	0	1	0	2
Financing Receivable, Modifications, Subsequent Default, Recorded Investment	$ 0	$ 23	$ 0	$ 23
PCI Loans | Discharged from bankruptcy
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modifications, Number of Contracts | loans	0	26	1	26
Financing Receivable, Modifications, Post-Modification Recorded Investment	$ 0	$ 1,828	$ 78	$ 1,828
Financing Receivable, Modifications, Subsequent Default, Number of Contracts | loans	0	2	0	2
Financing Receivable, Modifications, Subsequent Default, Recorded Investment	$ 0	$ 94	$ 0	$ 94
PCI Loans | Discharged from bankruptcy | Noncommerical | Mortgage
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modifications, Number of Contracts | loans	0	26	1	26
Financing Receivable, Modifications, Post-Modification Recorded Investment	$ 0	$ 1,828	$ 78	$ 1,828
Financing Receivable, Modifications, Subsequent Default, Number of Contracts | loans	0	2	0	2
Financing Receivable, Modifications, Subsequent Default, Recorded Investment	$ 0	$ 94	$ 0	$ 94
Non-PCI Loans
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modifications, Number of Contracts | loans	48	35	124	120
Financing Receivable, Modifications, Post-Modification Recorded Investment	$ 4,177	$ 6,139	$ 15,317	$ 20,657
Financing Receivable, Modifications, Subsequent Default, Number of Contracts | loans	5	6	12	11
Financing Receivable, Modifications, Subsequent Default, Recorded Investment	$ 217	$ 2,057	$ 2,940	$ 2,944
Non-PCI Loans | Loan term extension
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modifications, Number of Contracts | loans	2	13	8	27
Financing Receivable, Modifications, Post-Modification Recorded Investment	$ 840	$ 2,530	$ 1,597	$ 5,705
Financing Receivable, Modifications, Subsequent Default, Number of Contracts | loans	0	0	1	0
Financing Receivable, Modifications, Subsequent Default, Recorded Investment	$ 0	$ 0	$ 212	$ 0
Non-PCI Loans | Loan term extension | Commercial | Construction and land development
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modifications, Number of Contracts | loans	0	2	1	2
Financing Receivable, Modifications, Post-Modification Recorded Investment	$ 0	$ 191	$ 212	$ 191
Financing Receivable, Modifications, Subsequent Default, Number of Contracts | loans	0	0	1	0
Financing Receivable, Modifications, Subsequent Default, Recorded Investment	$ 0	$ 0	$ 212	$ 0
Non-PCI Loans | Loan term extension | Commercial | Mortgage
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modifications, Number of Contracts | loans	2	0	5	5
Financing Receivable, Modifications, Post-Modification Recorded Investment	$ 840	$ 0	$ 1,371	$ 2,584
Financing Receivable, Modifications, Subsequent Default, Number of Contracts | loans	0	0	0	0
Financing Receivable, Modifications, Subsequent Default, Recorded Investment	$ 0	$ 0	$ 0	$ 0
Non-PCI Loans | Loan term extension | Commercial | Commercial and industrial
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modifications, Number of Contracts | loans	0	4	0	4
Financing Receivable, Modifications, Post-Modification Recorded Investment	$ 0	$ 2,069	$ 0	$ 2,069
Financing Receivable, Modifications, Subsequent Default, Number of Contracts | loans	0	0	0	0
Financing Receivable, Modifications, Subsequent Default, Recorded Investment	$ 0	$ 0	$ 0	$ 0
Non-PCI Loans | Loan term extension | Commercial | Lease financing
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modifications, Number of Contracts | loans			0	2
Financing Receivable, Modifications, Post-Modification Recorded Investment			$ 0	$ 224
Financing Receivable, Modifications, Subsequent Default, Number of Contracts | loans			0	0
Financing Receivable, Modifications, Subsequent Default, Recorded Investment			$ 0	$ 0
Non-PCI Loans | Loan term extension | Noncommerical | Mortgage
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modifications, Number of Contracts | loans	0	6	0	11
Financing Receivable, Modifications, Post-Modification Recorded Investment	$ 0	$ 260	$ 0	$ 593
Financing Receivable, Modifications, Subsequent Default, Number of Contracts | loans	0	0	0	0
Financing Receivable, Modifications, Subsequent Default, Recorded Investment	$ 0	$ 0	$ 0	$ 0
Non-PCI Loans | Loan term extension | Noncommerical | Revolving mortgage
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modifications, Number of Contracts | loans			1	0
Financing Receivable, Modifications, Post-Modification Recorded Investment			$ 9	$ 0
Financing Receivable, Modifications, Subsequent Default, Number of Contracts | loans			0	0
Financing Receivable, Modifications, Subsequent Default, Recorded Investment			$ 0	$ 0
Non-PCI Loans | Loan term extension | Noncommerical | Consumer
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modifications, Number of Contracts | loans	0	1	1	3
Financing Receivable, Modifications, Post-Modification Recorded Investment	$ 0	$ 10	$ 5	$ 44
Financing Receivable, Modifications, Subsequent Default, Number of Contracts | loans	0	0	0	0
Financing Receivable, Modifications, Subsequent Default, Recorded Investment	$ 0	$ 0	$ 0	$ 0
Non-PCI Loans | Interest only period provided
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modifications, Number of Contracts | loans	2	3	3	10
Financing Receivable, Modifications, Post-Modification Recorded Investment	$ 69	$ 766	$ 1,941	$ 2,986
Financing Receivable, Modifications, Subsequent Default, Number of Contracts | loans	0	1	1	2
Financing Receivable, Modifications, Subsequent Default, Recorded Investment	$ 0	$ 494	$ 1,872	$ 708
Non-PCI Loans | Interest only period provided | Commercial | Mortgage
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modifications, Number of Contracts | loans	2	2	2	6
Financing Receivable, Modifications, Post-Modification Recorded Investment	$ 69	$ 720	$ 69	$ 2,600
Financing Receivable, Modifications, Subsequent Default, Number of Contracts | loans	0	1	0	2
Financing Receivable, Modifications, Subsequent Default, Recorded Investment	$ 0	$ 494	$ 0	$ 708
Non-PCI Loans | Interest only period provided | Commercial | Commercial and industrial
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modifications, Number of Contracts | loans			1	1
Financing Receivable, Modifications, Post-Modification Recorded Investment			$ 1,872	$ 196
Financing Receivable, Modifications, Subsequent Default, Number of Contracts | loans			1	0
Financing Receivable, Modifications, Subsequent Default, Recorded Investment			$ 1,872	$ 0
Non-PCI Loans | Interest only period provided | Commercial | Lease financing
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modifications, Number of Contracts | loans			0	2
Financing Receivable, Modifications, Post-Modification Recorded Investment			$ 0	$ 144
Financing Receivable, Modifications, Subsequent Default, Number of Contracts | loans			0	0
Financing Receivable, Modifications, Subsequent Default, Recorded Investment			$ 0	$ 0
Non-PCI Loans | Interest only period provided | Commercial | Other
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modifications, Number of Contracts | loans	0	1	0	1
Financing Receivable, Modifications, Post-Modification Recorded Investment	$ 0	$ 46	$ 0	$ 46
Financing Receivable, Modifications, Subsequent Default, Number of Contracts | loans	0	0	0	0
Financing Receivable, Modifications, Subsequent Default, Recorded Investment	$ 0	$ 0	$ 0	$ 0
Non-PCI Loans | Below market interest rate
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modifications, Number of Contracts | loans	31	14	83	63
Financing Receivable, Modifications, Post-Modification Recorded Investment	$ 2,968	$ 2,783	$ 10,026	$ 9,804
Financing Receivable, Modifications, Subsequent Default, Number of Contracts | loans	2	5	5	7
Financing Receivable, Modifications, Subsequent Default, Recorded Investment	$ 157	$ 1,563	$ 698	$ 2,151
Non-PCI Loans | Below market interest rate | Commercial | Construction and land development
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modifications, Number of Contracts | loans	3	0	5	10
Financing Receivable, Modifications, Post-Modification Recorded Investment	$ 251	$ 0	$ 296	$ 363
Financing Receivable, Modifications, Subsequent Default, Number of Contracts | loans	0	0	0	0
Financing Receivable, Modifications, Subsequent Default, Recorded Investment	$ 0	$ 0	$ 0	$ 0
Non-PCI Loans | Below market interest rate | Commercial | Mortgage
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modifications, Number of Contracts | loans	6	3	16	15
Financing Receivable, Modifications, Post-Modification Recorded Investment	$ 1,510	$ 1,991	$ 5,226	$ 6,591
Financing Receivable, Modifications, Subsequent Default, Number of Contracts | loans	0	5	1	6
Financing Receivable, Modifications, Subsequent Default, Recorded Investment	$ 0	$ 1,563	$ 498	$ 2,011
Non-PCI Loans | Below market interest rate | Commercial | Other commercial real estate
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modifications, Number of Contracts | loans	0	1	0	1
Financing Receivable, Modifications, Post-Modification Recorded Investment	$ 0	$ 365	$ 0	$ 365
Financing Receivable, Modifications, Subsequent Default, Number of Contracts | loans	0	0	0	0
Financing Receivable, Modifications, Subsequent Default, Recorded Investment	$ 0	$ 0	$ 0	$ 0
Non-PCI Loans | Below market interest rate | Commercial | Commercial and industrial
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modifications, Number of Contracts | loans	4	0	7	6
Financing Receivable, Modifications, Post-Modification Recorded Investment	$ 521	$ 0	$ 673	$ 143
Financing Receivable, Modifications, Subsequent Default, Number of Contracts | loans	1	0	1	0
Financing Receivable, Modifications, Subsequent Default, Recorded Investment	$ 142	$ 0	$ 142	$ 0
Non-PCI Loans | Below market interest rate | Commercial | Other
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modifications, Number of Contracts | loans			1	0
Financing Receivable, Modifications, Post-Modification Recorded Investment			$ 1,732	$ 0
Financing Receivable, Modifications, Subsequent Default, Number of Contracts | loans			0	0
Financing Receivable, Modifications, Subsequent Default, Recorded Investment			$ 0	$ 0
Non-PCI Loans | Below market interest rate | Noncommerical | Construction and land development
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modifications, Number of Contracts | loans			2	8
Financing Receivable, Modifications, Post-Modification Recorded Investment			$ 253	$ 1,248
Financing Receivable, Modifications, Subsequent Default, Number of Contracts | loans			0	0
Financing Receivable, Modifications, Subsequent Default, Recorded Investment			$ 0	$ 0
Non-PCI Loans | Below market interest rate | Noncommerical | Mortgage
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modifications, Number of Contracts | loans	15	10	42	18
Financing Receivable, Modifications, Post-Modification Recorded Investment	$ 646	$ 427	$ 1,698	$ 820
Financing Receivable, Modifications, Subsequent Default, Number of Contracts | loans	1	0	3	1
Financing Receivable, Modifications, Subsequent Default, Recorded Investment	$ 15	$ 0	$ 58	$ 140
Non-PCI Loans | Below market interest rate | Noncommerical | Revolving mortgage
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modifications, Number of Contracts | loans			3	5
Financing Receivable, Modifications, Post-Modification Recorded Investment			$ 63	$ 274
Financing Receivable, Modifications, Subsequent Default, Number of Contracts | loans			0	0
Financing Receivable, Modifications, Subsequent Default, Recorded Investment			$ 0	$ 0
Non-PCI Loans | Below market interest rate | Noncommerical | Consumer
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modifications, Number of Contracts | loans	3	0	7	0
Financing Receivable, Modifications, Post-Modification Recorded Investment	$ 40	$ 0	$ 85	$ 0
Financing Receivable, Modifications, Subsequent Default, Number of Contracts | loans	0	0	0	0
Financing Receivable, Modifications, Subsequent Default, Recorded Investment	$ 0	$ 0	$ 0	$ 0
Non-PCI Loans | Discharged from bankruptcy
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modifications, Number of Contracts | loans	13	5	30	20
Financing Receivable, Modifications, Post-Modification Recorded Investment	$ 300	$ 60	$ 1,753	$ 2,162
Financing Receivable, Modifications, Subsequent Default, Number of Contracts | loans	3	0	5	2
Financing Receivable, Modifications, Subsequent Default, Recorded Investment	$ 60	$ 0	$ 158	$ 85
Non-PCI Loans | Discharged from bankruptcy | Commercial | Mortgage
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modifications, Number of Contracts | loans			1	1
Financing Receivable, Modifications, Post-Modification Recorded Investment			$ 622	$ 983
Financing Receivable, Modifications, Subsequent Default, Number of Contracts | loans			0	0
Financing Receivable, Modifications, Subsequent Default, Recorded Investment			$ 0	$ 0
Non-PCI Loans | Discharged from bankruptcy | Commercial | Commercial and industrial
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modifications, Number of Contracts | loans	1	0	1	0
Financing Receivable, Modifications, Post-Modification Recorded Investment	$ 17	$ 0	$ 17	$ 0
Financing Receivable, Modifications, Subsequent Default, Number of Contracts | loans	0	0	0	0
Financing Receivable, Modifications, Subsequent Default, Recorded Investment	$ 0	$ 0	$ 0	$ 0
Non-PCI Loans | Discharged from bankruptcy | Noncommerical | Construction and land development
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modifications, Number of Contracts | loans			0	1
Financing Receivable, Modifications, Post-Modification Recorded Investment			$ 0	$ 62
Financing Receivable, Modifications, Subsequent Default, Number of Contracts | loans			0	0
Financing Receivable, Modifications, Subsequent Default, Recorded Investment			$ 0	$ 0
Non-PCI Loans | Discharged from bankruptcy | Noncommerical | Mortgage
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modifications, Number of Contracts | loans	2	1	8	8
Financing Receivable, Modifications, Post-Modification Recorded Investment	$ 35	$ 13	$ 434	$ 649
Financing Receivable, Modifications, Subsequent Default, Number of Contracts | loans	0	0	0	2
Financing Receivable, Modifications, Subsequent Default, Recorded Investment	$ 0	$ 0	$ 0	$ 85
Non-PCI Loans | Discharged from bankruptcy | Noncommerical | Revolving mortgage
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modifications, Number of Contracts | loans	7	2	16	7
Financing Receivable, Modifications, Post-Modification Recorded Investment	$ 203	$ 39	$ 632	$ 442
Financing Receivable, Modifications, Subsequent Default, Number of Contracts | loans	3	0	5	0
Financing Receivable, Modifications, Subsequent Default, Recorded Investment	$ 60	$ 0	$ 158	$ 0
Non-PCI Loans | Discharged from bankruptcy | Noncommerical | Consumer
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modifications, Number of Contracts | loans	3	2	4	3
Financing Receivable, Modifications, Post-Modification Recorded Investment	$ 45	$ 8	$ 48	$ 26
Financing Receivable, Modifications, Subsequent Default, Number of Contracts | loans	0	0	0	0
Financing Receivable, Modifications, Subsequent Default, Recorded Investment	$ 0	$ 0	$ 0	$ 0