Loans and Leases Loans and Leases (Information on How Loans and Leases were Modified as a TDR) (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Financing Receivable, Impaired [Line Items]
Recorded Investment	$ 62,054	$ 115,539	$ 149,438
Residential 1-4 family [Member]
Financing Receivable, Impaired [Line Items]
Recorded Investment	25,833	32,974	31,939
Construction [Member]
Financing Receivable, Impaired [Line Items]
Recorded Investment	0	263	0
Home equity [Member]
Financing Receivable, Impaired [Line Items]
Recorded Investment	6,370	26,569	9,422
Liquidating-home equity [Member]
Financing Receivable, Impaired [Line Items]
Recorded Investment	703	5,693	1,428
Commercial non-mortgage [Member]
Financing Receivable, Impaired [Line Items]
Recorded Investment	13,265	22,699	45,507
Asset-based [Member]
Financing Receivable, Impaired [Line Items]
Recorded Investment	0	0	2,563
Commercial real estate [Member]
Financing Receivable, Impaired [Line Items]
Recorded Investment	12,121	25,855	47,544
Commercial construction [Member]
Financing Receivable, Impaired [Line Items]
Recorded Investment	0	0	10,100
Residential development [Member]
Financing Receivable, Impaired [Line Items]
Recorded Investment	3,762	896	719
Equipment financing [Member]
Financing Receivable, Impaired [Line Items]
Recorded Investment	0	590	216
Extended Maturity [Member]
Financing Receivable, Impaired [Line Items]
Recorded Investment	14,156	6,570	37,754
Extended Maturity [Member] | Residential 1-4 family [Member]
Financing Receivable, Impaired [Line Items]
Recorded Investment	5,238	2,067	8,332
Extended Maturity [Member] | Construction [Member]
Financing Receivable, Impaired [Line Items]
Recorded Investment	0	0	0
Extended Maturity [Member] | Home equity [Member]
Financing Receivable, Impaired [Line Items]
Recorded Investment	963	1,079	4,760
Extended Maturity [Member] | Liquidating-home equity [Member]
Financing Receivable, Impaired [Line Items]
Recorded Investment	201	35	631
Extended Maturity [Member] | Commercial non-mortgage [Member]
Financing Receivable, Impaired [Line Items]
Recorded Investment	7,527	816	5,607
Extended Maturity [Member] | Asset-based [Member]
Financing Receivable, Impaired [Line Items]
Recorded Investment	0	0	0
Extended Maturity [Member] | Commercial real estate [Member]
Financing Receivable, Impaired [Line Items]
Recorded Investment	38	2,112	18,424
Extended Maturity [Member] | Commercial construction [Member]
Financing Receivable, Impaired [Line Items]
Recorded Investment	0	0	0
Extended Maturity [Member] | Residential development [Member]
Financing Receivable, Impaired [Line Items]
Recorded Investment	189	319	0
Extended Maturity [Member] | Equipment financing [Member]
Financing Receivable, Impaired [Line Items]
Recorded Investment	0	142	0
Adjusted Interest Rates [Member]
Financing Receivable, Impaired [Line Items]
Recorded Investment	2,931	2,931	12,135
Adjusted Interest Rates [Member] | Residential 1-4 family [Member]
Financing Receivable, Impaired [Line Items]
Recorded Investment	2,777	2,707	2,706
Adjusted Interest Rates [Member] | Construction [Member]
Financing Receivable, Impaired [Line Items]
Recorded Investment	0	0	0
Adjusted Interest Rates [Member] | Home equity [Member]
Financing Receivable, Impaired [Line Items]
Recorded Investment	154	224	0
Adjusted Interest Rates [Member] | Liquidating-home equity [Member]
Financing Receivable, Impaired [Line Items]
Recorded Investment	0	0	0
Adjusted Interest Rates [Member] | Commercial non-mortgage [Member]
Financing Receivable, Impaired [Line Items]
Recorded Investment	0	0	3,217
Adjusted Interest Rates [Member] | Asset-based [Member]
Financing Receivable, Impaired [Line Items]
Recorded Investment	0	0	0
Adjusted Interest Rates [Member] | Commercial real estate [Member]
Financing Receivable, Impaired [Line Items]
Recorded Investment	0	0	5,996
Adjusted Interest Rates [Member] | Commercial construction [Member]
Financing Receivable, Impaired [Line Items]
Recorded Investment	0	0	0
Adjusted Interest Rates [Member] | Residential development [Member]
Financing Receivable, Impaired [Line Items]
Recorded Investment	0	0	0
Adjusted Interest Rates [Member] | Equipment financing [Member]
Financing Receivable, Impaired [Line Items]
Recorded Investment	0	0	216
Rate and Maturity [Member]
Financing Receivable, Impaired [Line Items]
Recorded Investment	26,518	13,114	27,153
Rate and Maturity [Member] | Residential 1-4 family [Member]
Financing Receivable, Impaired [Line Items]
Recorded Investment	8,301	7,811	18,766
Rate and Maturity [Member] | Construction [Member]
Financing Receivable, Impaired [Line Items]
Recorded Investment	0	104	0
Rate and Maturity [Member] | Home equity [Member]
Financing Receivable, Impaired [Line Items]
Recorded Investment	1,500	1,380	4,187
Rate and Maturity [Member] | Liquidating-home equity [Member]
Financing Receivable, Impaired [Line Items]
Recorded Investment	7	0	797
Rate and Maturity [Member] | Commercial non-mortgage [Member]
Financing Receivable, Impaired [Line Items]
Recorded Investment	1,122	1,162	301
Rate and Maturity [Member] | Asset-based [Member]
Financing Receivable, Impaired [Line Items]
Recorded Investment	0	0	2,563
Rate and Maturity [Member] | Commercial real estate [Member]
Financing Receivable, Impaired [Line Items]
Recorded Investment	12,015	1,792	539
Rate and Maturity [Member] | Commercial construction [Member]
Financing Receivable, Impaired [Line Items]
Recorded Investment	0	0	0
Rate and Maturity [Member] | Residential development [Member]
Financing Receivable, Impaired [Line Items]
Recorded Investment	3,573	577	0
Rate and Maturity [Member] | Equipment financing [Member]
Financing Receivable, Impaired [Line Items]
Recorded Investment	0	288	0
Other [Member]
Financing Receivable, Impaired [Line Items]
Recorded Investment	18,449	92,924	72,396
Other [Member] | Residential 1-4 family [Member]
Financing Receivable, Impaired [Line Items]
Recorded Investment	9,517	20,389	2,135
Other [Member] | Construction [Member]
Financing Receivable, Impaired [Line Items]
Recorded Investment	0	159	0
Other [Member] | Home equity [Member]
Financing Receivable, Impaired [Line Items]
Recorded Investment	3,753	23,886	475
Other [Member] | Liquidating-home equity [Member]
Financing Receivable, Impaired [Line Items]
Recorded Investment	495	5,658	0
Other [Member] | Commercial non-mortgage [Member]
Financing Receivable, Impaired [Line Items]
Recorded Investment	4,616	20,721	36,382
Other [Member] | Asset-based [Member]
Financing Receivable, Impaired [Line Items]
Recorded Investment	0	0	0
Other [Member] | Commercial real estate [Member]
Financing Receivable, Impaired [Line Items]
Recorded Investment	68	21,951	22,585
Other [Member] | Commercial construction [Member]
Financing Receivable, Impaired [Line Items]
Recorded Investment	0	0	10,100
Other [Member] | Residential development [Member]
Financing Receivable, Impaired [Line Items]
Recorded Investment	0	0	719
Other [Member] | Equipment financing [Member]
Financing Receivable, Impaired [Line Items]
Recorded Investment	$ 0	$ 160	$ 0