Fair Value (Fair Value Of Financial Instruments) (Details) (USD $) In Thousands, unless otherwise specified	Jun. 30, 2014	Dec. 31, 2013
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Cash and money market instruments	$ 196,966	$ 147,030
Investment securities	1,363,081	1,363,668
Mortgage loans held for sale	6,577	1,666
Impaired loans carried at fair value	30,183	33,819
Other loans	4,657,607	4,531,680
Loans receivable, net	4,694,449	4,567,226
Noninterest bearing checking accounts	1,163,288	1,193,553
Interest bearing transactions accounts	1,346,223	1,145,525
Savings accounts	1,162,352	1,124,994
Time deposits	1,255,881	1,331,129
Other	4,063	1,263
Total deposits	4,931,807	4,796,464
Short-term borrowings	250,689	242,029
Long-term debt	835,850	860,963
Subordinated debentures/notes	86,850	83,140
Fair Value Swap [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Swap	135	135
Securities [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Accrued interest receivable	4,727	4,840
Loans [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Accrued interest receivable	13,111	13,495
Deposits [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Accrued interest payable	1,259	1,366
Borrowings [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Accrued interest payable	1,490	1,535
Reported Value Measurement [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Cash and money market instruments	196,966	147,030
Investment securities	1,359,599	1,358,327
Mortgage loans held for sale	6,577	1,666
Derivative Assets	82	61
Impaired loans carried at fair value	30,183	33,819
Other loans	4,640,734	4,525,491
Loans receivable, net	4,677,576	4,561,037
Noninterest bearing checking accounts	1,163,288	1,193,553
Interest bearing transactions accounts	1,346,223	1,145,525
Savings accounts	1,162,352	1,124,994
Time deposits	1,251,285	1,324,659
Other	4,063	1,263
Total deposits	4,927,211	4,789,994
Short-term borrowings	250,689	242,029
Long-term debt	787,465	810,541
Subordinated debentures/notes	80,250	80,250
Reported Value Measurement [Member] | Fair Value Swap [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Swap	135	135
Reported Value Measurement [Member] | Securities [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Accrued interest receivable	4,727	4,840
Reported Value Measurement [Member] | Loans [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Accrued interest receivable	13,111	13,495
Reported Value Measurement [Member] | Deposits [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Accrued interest payable	1,259	1,366
Reported Value Measurement [Member] | Borrowings [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Accrued interest payable	1,490	1,535
Fair Value, Inputs, Level 1 [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Cash and money market instruments	196,966	147,030
Investment securities	1,902	1,900
Mortgage loans held for sale
Derivative Assets	0	0
Impaired loans carried at fair value
Other loans
Loans receivable, net
Noninterest bearing checking accounts	1,163,288	1,193,553
Interest bearing transactions accounts	1,346,223	1,145,525
Savings accounts	1,162,352	1,124,994
Time deposits
Other	4,063	1,263
Total deposits	3,675,926	3,465,335
Short-term borrowings
Long-term debt
Subordinated debentures/notes
Fair Value, Inputs, Level 1 [Member] | Fair Value Swap [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Swap
Fair Value, Inputs, Level 1 [Member] | Securities [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Accrued interest receivable
Fair Value, Inputs, Level 1 [Member] | Loans [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Accrued interest receivable
Fair Value, Inputs, Level 1 [Member] | Deposits [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Accrued interest payable	15	16
Fair Value, Inputs, Level 1 [Member] | Borrowings [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Accrued interest payable	9	4
Estimate of Fair Value Measurement [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Derivative Assets	82	61
Impaired loans carried at fair value		33,819
Level 2 [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Cash and money market instruments
Investment securities	1,360,432	1,361,009
Mortgage loans held for sale	6,577	1,666
Derivative Assets	82	61
Impaired loans carried at fair value
Other loans
Loans receivable, net	6,659	1,727
Noninterest bearing checking accounts
Interest bearing transactions accounts
Savings accounts
Time deposits	1,255,881	1,331,129
Other
Total deposits	1,255,881	1,331,129
Short-term borrowings	250,689	242,029
Long-term debt	835,850	860,963
Subordinated debentures/notes	86,850	83,140
Level 2 [Member] | Fair Value Swap [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Swap
Level 2 [Member] | Securities [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Accrued interest receivable	4,727	4,840
Level 2 [Member] | Loans [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Accrued interest receivable
Level 2 [Member] | Deposits [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Accrued interest payable	1,244	1,350
Level 2 [Member] | Borrowings [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Accrued interest payable	1,481	1,531
Fair Value, Inputs, Level 3 [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Cash and money market instruments
Investment securities	747	759
Mortgage loans held for sale
Derivative Assets	0	0
Impaired loans carried at fair value	30,183	33,819
Other loans	4,657,607	4,531,680
Loans receivable, net	4,687,790	4,565,499
Noninterest bearing checking accounts
Interest bearing transactions accounts
Savings accounts
Time deposits
Other
Total deposits
Short-term borrowings
Long-term debt
Subordinated debentures/notes
Fair Value, Inputs, Level 3 [Member] | Fair Value Swap [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Swap	135	135
Fair Value, Inputs, Level 3 [Member] | Securities [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Accrued interest receivable
Fair Value, Inputs, Level 3 [Member] | Loans [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Accrued interest receivable	13,111	13,495
Fair Value, Inputs, Level 3 [Member] | Deposits [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Accrued interest payable
Fair Value, Inputs, Level 3 [Member] | Borrowings [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Accrued interest payable