Fair Value (Carrying Amounts and Estimated Fair Value for Financial Instrument Assets and Liabilities) (Details) (USD $) In Thousands, unless otherwise specified	Dec. 31, 2013		Dec. 31, 2012		Dec. 31, 2011	Dec. 31, 2010
Financial assets:
Available-for-sale Securities	$ 808,477		$ 781,050
Trading account assets	2,488		2,300
Servicing Asset at Fair Value, Amount	1,494		879		1,138	973
Readily Available Market Prices (Level 1) [Member]
Financial assets:
Cash and due from banks	51,355		58,290
FHLB and Federal Reserve Bank stock	19,724		21,034
Trading account assets	2,488		2,300
Financial liabilities:
Deposits	1,324,221		1,339,290
Other borrowed funds	400,144		193,753
Interest payable	567		905
Observable Market Data (Level 2) [Member]
Financial assets:
Available-for-sale Securities	808,477		781,050
Servicing Asset at Fair Value, Amount	1,494	[1]	879	[2]
Interest receivable	5,808		6,215
Customer interest rate swap agreement	114		496
Financial liabilities:
Deposits	492,978		597,156
FHLB advances	59,118		60,813
Commercial repurchase agreements	32,038		69,067
Junior subordinated debentures	43,922		43,819
Interest rate swap agreements	3,911		11,580
Customer interest rate swap agreement	114		496
Company Determined Fair Value (Level 3) [Member]
Financial assets:
Investment in CCTA and UBCT	1,331		1,331
Carrying Amount [Member]
Financial assets:
Cash and due from banks	51,355		58,290
Available-for-sale Securities	808,477		781,050
FHLB and Federal Reserve Bank stock	19,724		21,034
Trading account assets	2,488		2,300
Servicing Asset at Fair Value, Amount	726	[1]	542	[2]
Interest receivable	5,808		6,215
Investment in CCTA and UBCT	1,331		1,331
Customer interest rate swap agreement	114		496
Financial liabilities:
Deposits	1,813,824		1,929,469
FHLB advances	56,112		56,404
Commercial repurchase agreements	30,142		66,187
Other borrowed funds	399,916		193,753
Junior subordinated debentures	43,922		43,819
Interest payable	567		905
Interest rate swap agreements	3,911		11,580
Customer interest rate swap agreement	114		496
Fair Value [Member]
Financial assets:
Cash and due from banks	51,355		58,290
Available-for-sale Securities	808,477		781,050
FHLB and Federal Reserve Bank stock	19,724		21,034
Trading account assets	2,488		2,300
Servicing Asset at Fair Value, Amount	1,494	[1]	879	[2]
Interest receivable	5,808		6,215
Investment in CCTA and UBCT	1,331		1,331
Customer interest rate swap agreement	114		496
Financial liabilities:
Deposits	1,817,199		1,936,446
FHLB advances	59,118		60,813
Commercial repurchase agreements	32,038		69,067
Other borrowed funds	400,144		193,753
Junior subordinated debentures	43,922		43,819
Interest payable	567		905
Interest rate swap agreements	3,911		11,580
Customer interest rate swap agreement	114		496
Residential Portfolio Segment [Member] | Company Determined Fair Value (Level 3) [Member]
Financial assets:
Loans receivable, net of allowance	577,153		591,139
Residential Portfolio Segment [Member] | Carrying Amount [Member]
Financial assets:
Loans receivable, net of allowance	563,425		564,184
Residential Portfolio Segment [Member] | Fair Value [Member]
Financial assets:
Loans receivable, net of allowance	577,153		591,139
Commercial real estate loans | Company Determined Fair Value (Level 3) [Member]
Financial assets:
Loans receivable, net of allowance	535,961		492,602
Commercial real estate loans | Carrying Amount [Member]
Financial assets:
Loans receivable, net of allowance	536,107		501,037
Commercial real estate loans | Fair Value [Member]
Financial assets:
Loans receivable, net of allowance	535,961		492,602
Commercial loans | Company Determined Fair Value (Level 3) [Member]
Financial assets:
Loans receivable, net of allowance	171,432		179,519
Commercial loans | Carrying Amount [Member]
Financial assets:
Loans receivable, net of allowance	172,105		183,680
Commercial loans | Fair Value [Member]
Financial assets:
Loans receivable, net of allowance	171,432		179,519
Home equity loans | Company Determined Fair Value (Level 3) [Member]
Financial assets:
Loans receivable, net of allowance	271,041		277,194
Home equity loans | Carrying Amount [Member]
Financial assets:
Loans receivable, net of allowance	269,888		275,498
Home equity loans | Fair Value [Member]
Financial assets:
Loans receivable, net of allowance	271,041		277,194
Consumer loans | Company Determined Fair Value (Level 3) [Member]
Financial assets:
Loans receivable, net of allowance	17,662		16,866
Consumer loans | Carrying Amount [Member]
Financial assets:
Loans receivable, net of allowance	17,287		16,423
Consumer loans | Fair Value [Member]
Financial assets:
Loans receivable, net of allowance	$ 17,662		$ 16,866

[1] Reported fair value represents all MSRs currently being serviced by the Company at December 31, 2013, regardless of carrying amount.

[2] Reported fair value represents all MSRs currently being serviced by the Company at December 31, 2012, regardless of carrying amount.