Fair Value (Carrying Amounts and Estimated Fair Value for Financial Instrument Assets and Liabilities) (Details) - USD ($) $ in Thousands		Dec. 31, 2016		Dec. 31, 2015		Dec. 31, 2014	Dec. 31, 2013
Financial assets:
Cash and due from banks		$ 87,707		$ 79,488
AFS securities		779,867		750,338
HTM securities		94,609		84,144
Held-to-maturity Securities, Fair Value		94,596		85,647
Loans Held-for-sale, Fair Value Disclosure		14,836		10,958
Servicing Asset at Fair Value, Amount	[2]	1,701	[1]	2,947	[1]	$ 1,447	$ 1,494
Interest Receivable Fair Value Disclosure		8,654		7,985
Financial liabilities:
Deposits		2,826,484		2,726,300
Federal Home Loan Bank Borrowings, Fair Value Disclosure		530,435		479,403
Securities Loaned or Sold under Agreements to Repurchase, Fair Value Disclosure		10,836		36,307
Subordinated debentures		41,660		42,950
Interest payable		534		641
Readily Available Market Prices (Level 1) [Member]
Financial assets:
Cash and due from banks		87,707		79,488
AFS securities		0		0
Held-to-maturity Securities, Fair Value		0		0
Loans Held-for-sale, Fair Value Disclosure		0		0
Servicing Asset at Fair Value, Amount	[1]	0		0
Interest Receivable Fair Value Disclosure		0		0
Financial liabilities:
Deposits		0		0
Federal Home Loan Bank Borrowings, Fair Value Disclosure		0		0
Securities Loaned or Sold under Agreements to Repurchase, Fair Value Disclosure		0		0
Subordinated debentures		0		0
Interest payable		0		0
Observable Market Data (Level 2) [Member]
Financial assets:
Cash and due from banks		0		0
AFS securities		779,867		750,338
Held-to-maturity Securities, Fair Value		94,596		85,647
Loans Held-for-sale, Fair Value Disclosure		14,836		10,958
Servicing Asset at Fair Value, Amount	[1]	1,701		2,947
Interest Receivable Fair Value Disclosure		8,654		7,985
Financial liabilities:
Deposits		2,826,484		2,726,300
Federal Home Loan Bank Borrowings, Fair Value Disclosure		530,435		479,403
Securities Loaned or Sold under Agreements to Repurchase, Fair Value Disclosure		10,836		36,307
Subordinated debentures		41,660		42,950
Interest payable		534		641
Company Determined Fair Value (Level 3) [Member]
Financial assets:
Cash and due from banks		0		0
AFS securities		0		0
Held-to-maturity Securities, Fair Value		0		0
Loans Held-for-sale, Fair Value Disclosure		0		0
Servicing Asset at Fair Value, Amount	[1]	0		0
Interest Receivable Fair Value Disclosure		0		0
Financial liabilities:
Deposits		0		0
Federal Home Loan Bank Borrowings, Fair Value Disclosure		0		0
Securities Loaned or Sold under Agreements to Repurchase, Fair Value Disclosure		0		0
Subordinated debentures		0		0
Interest payable		0		0
Carrying Amount [Member]
Financial assets:
Cash and due from banks		87,707		79,488
AFS securities		779,867		750,338
HTM securities		94,609		84,144
Loans Held-for-sale, Fair Value Disclosure		14,836		10,958
Servicing Asset at Fair Value, Amount	[1]	1,210		2,161
Interest Receivable Fair Value Disclosure		8,654		7,985
Financial liabilities:
Deposits		2,828,529		2,726,379
Federal Home Loan Bank Borrowings, Fair Value Disclosure		530,129		477,852
Securities Loaned or Sold under Agreements to Repurchase, Fair Value Disclosure		10,791		35,911
Subordinated debentures		58,755		58,599
Interest payable		534		641
Residential real estate loans
Financial assets:
Loans receivable, net of allowance	[3]	800,122		820,774
Residential real estate loans | Readily Available Market Prices (Level 1) [Member]
Financial assets:
Loans receivable, net of allowance	[3]	0		0
Residential real estate loans | Observable Market Data (Level 2) [Member]
Financial assets:
Loans receivable, net of allowance	[3]	0		0
Residential real estate loans | Company Determined Fair Value (Level 3) [Member]
Financial assets:
Loans receivable, net of allowance	[3]	800,122		820,774
Residential real estate loans | Carrying Amount [Member]
Financial assets:
Loans receivable, net of allowance	[3]	798,334		808,180
Commercial real estate loans
Financial assets:
Loans receivable, net of allowance	[3]	1,006,249		911,316
Commercial real estate loans | Readily Available Market Prices (Level 1) [Member]
Financial assets:
Loans receivable, net of allowance	[3]	0		0
Commercial real estate loans | Observable Market Data (Level 2) [Member]
Financial assets:
Loans receivable, net of allowance	[3]	0		0
Commercial real estate loans | Company Determined Fair Value (Level 3) [Member]
Financial assets:
Loans receivable, net of allowance	[3]	1,006,249		911,316
Commercial real estate loans | Carrying Amount [Member]
Financial assets:
Loans receivable, net of allowance	[3]	1,038,626		922,257
Commercial loans
Financial assets:
Loans receivable, net of allowance	[3],[4]	391,493		371,854
Commercial loans | Readily Available Market Prices (Level 1) [Member]
Financial assets:
Loans receivable, net of allowance	[3],[4]	0		0
Commercial loans | Observable Market Data (Level 2) [Member]
Financial assets:
Loans receivable, net of allowance	[3],[4]	0		0
Commercial loans | Company Determined Fair Value (Level 3) [Member]
Financial assets:
Loans receivable, net of allowance	[3],[4]	391,493		371,854
Commercial loans | Carrying Amount [Member]
Financial assets:
Loans receivable, net of allowance	[3],[4]	389,624		371,684
Home equity loans
Financial assets:
Loans receivable, net of allowance	[3]	327,292		348,963
Home equity loans | Readily Available Market Prices (Level 1) [Member]
Financial assets:
Loans receivable, net of allowance	[3]	0		0
Home equity loans | Observable Market Data (Level 2) [Member]
Financial assets:
Loans receivable, net of allowance	[3]	0		0
Home equity loans | Company Determined Fair Value (Level 3) [Member]
Financial assets:
Loans receivable, net of allowance	[3]	327,292		348,963
Home equity loans | Carrying Amount [Member]
Financial assets:
Loans receivable, net of allowance	[3]	327,713		349,215
Consumer loans
Financial assets:
Loans receivable, net of allowance	[3]	16,845		18,163
Consumer loans | Readily Available Market Prices (Level 1) [Member]
Financial assets:
Loans receivable, net of allowance	[3]	0		0
Consumer loans | Observable Market Data (Level 2) [Member]
Financial assets:
Loans receivable, net of allowance	[3]	0		0
Consumer loans | Company Determined Fair Value (Level 3) [Member]
Financial assets:
Loans receivable, net of allowance	[3]	16,845		18,163
Consumer loans | Carrying Amount [Member]
Financial assets:
Loans receivable, net of allowance	[3]	17,151		17,704
Fair Value, Measurements, Recurring [Member]
Financial liabilities:
Junior subordinated debt interest rate swaps		8,372		9,229
Fair Value, Measurements, Recurring [Member] | Observable Market Data (Level 2) [Member]
Financial liabilities:
Junior subordinated debt interest rate swaps		8,372		9,229
Forward-Starting Interest Rate Swap [Member]
Financial liabilities:
Junior subordinated debt interest rate swaps		389		576
Forward-Starting Interest Rate Swap [Member] | Readily Available Market Prices (Level 1) [Member]
Financial liabilities:
Junior subordinated debt interest rate swaps		0		0
Forward-Starting Interest Rate Swap [Member] | Observable Market Data (Level 2) [Member]
Financial liabilities:
Junior subordinated debt interest rate swaps		389		576
Forward-Starting Interest Rate Swap [Member] | Company Determined Fair Value (Level 3) [Member]
Financial liabilities:
Junior subordinated debt interest rate swaps		0		0
Forward-Starting Interest Rate Swap [Member] | Carrying Amount [Member]
Financial liabilities:
Junior subordinated debt interest rate swaps		389		576
Forward-Starting Interest Rate Swap [Member] | Fair Value, Measurements, Recurring [Member]
Financial liabilities:
Junior subordinated debt interest rate swaps		389		576
Forward-Starting Interest Rate Swap [Member] | Fair Value, Measurements, Recurring [Member] | Observable Market Data (Level 2) [Member]
Financial liabilities:
Junior subordinated debt interest rate swaps		389		576
Interest Rate Swap [Member]
Financial assets:
Interest Rate Derivative Instruments Not Designated as Hedging Instruments, Asset at Fair Value		1,945		3,166
Financial liabilities:
Junior subordinated debt interest rate swaps		8,372		9,229
Interest Rate Derivative Instruments Not Designated as Hedging Instruments, Liability at Fair Value		1,945		3,166
Interest Rate Swap [Member] | Readily Available Market Prices (Level 1) [Member]
Financial assets:
Interest Rate Derivative Instruments Not Designated as Hedging Instruments, Asset at Fair Value		0		0
Financial liabilities:
Junior subordinated debt interest rate swaps		0		0
Interest Rate Derivative Instruments Not Designated as Hedging Instruments, Liability at Fair Value		0		0
Interest Rate Swap [Member] | Observable Market Data (Level 2) [Member]
Financial assets:
Interest Rate Derivative Instruments Not Designated as Hedging Instruments, Asset at Fair Value		1,945		3,166
Financial liabilities:
Junior subordinated debt interest rate swaps		8,372		9,229
Interest Rate Derivative Instruments Not Designated as Hedging Instruments, Liability at Fair Value		1,945		3,166
Interest Rate Swap [Member] | Company Determined Fair Value (Level 3) [Member]
Financial assets:
Interest Rate Derivative Instruments Not Designated as Hedging Instruments, Asset at Fair Value		0		0
Financial liabilities:
Junior subordinated debt interest rate swaps		0		0
Interest Rate Derivative Instruments Not Designated as Hedging Instruments, Liability at Fair Value		0		0
Interest Rate Swap [Member] | Carrying Amount [Member]
Financial assets:
Interest Rate Derivative Instruments Not Designated as Hedging Instruments, Asset at Fair Value		1,945		3,166
Financial liabilities:
Junior subordinated debt interest rate swaps		8,372		9,229
Interest Rate Derivative Instruments Not Designated as Hedging Instruments, Liability at Fair Value		1,945		3,166
Interest Rate Swap [Member] | Fair Value, Measurements, Recurring [Member]
Financial assets:
Interest Rate Derivative Instruments Not Designated as Hedging Instruments, Asset at Fair Value		1,945
Financial liabilities:
Interest Rate Derivative Instruments Not Designated as Hedging Instruments, Liability at Fair Value		1,945		3,166
Interest Rate Swap [Member] | Fair Value, Measurements, Recurring [Member] | Observable Market Data (Level 2) [Member]
Financial assets:
Interest Rate Derivative Instruments Not Designated as Hedging Instruments, Asset at Fair Value		1,945
Financial liabilities:
Interest Rate Derivative Instruments Not Designated as Hedging Instruments, Liability at Fair Value		1,945		3,166
Interest Rate Lock Commitments [Member]
Financial assets:
Interest Rate Derivative Instruments Not Designated as Hedging Instruments, Asset at Fair Value		202		229
Financial liabilities:
Interest Rate Derivative Instruments Not Designated as Hedging Instruments, Liability at Fair Value		15		90
Interest Rate Lock Commitments [Member] | Readily Available Market Prices (Level 1) [Member]
Financial assets:
Interest Rate Derivative Instruments Not Designated as Hedging Instruments, Asset at Fair Value		0		0
Financial liabilities:
Interest Rate Derivative Instruments Not Designated as Hedging Instruments, Liability at Fair Value		0		0
Interest Rate Lock Commitments [Member] | Observable Market Data (Level 2) [Member]
Financial assets:
Interest Rate Derivative Instruments Not Designated as Hedging Instruments, Asset at Fair Value		202		229
Financial liabilities:
Interest Rate Derivative Instruments Not Designated as Hedging Instruments, Liability at Fair Value		15		90
Interest Rate Lock Commitments [Member] | Company Determined Fair Value (Level 3) [Member]
Financial assets:
Interest Rate Derivative Instruments Not Designated as Hedging Instruments, Asset at Fair Value		0		0
Financial liabilities:
Interest Rate Derivative Instruments Not Designated as Hedging Instruments, Liability at Fair Value		0		0
Interest Rate Lock Commitments [Member] | Carrying Amount [Member]
Financial assets:
Interest Rate Derivative Instruments Not Designated as Hedging Instruments, Asset at Fair Value		202		0
Financial liabilities:
Interest Rate Derivative Instruments Not Designated as Hedging Instruments, Liability at Fair Value		15		90
Interest Rate Lock Commitments [Member] | Fair Value, Measurements, Recurring [Member]
Financial assets:
Interest Rate Derivative Instruments Not Designated as Hedging Instruments, Asset at Fair Value		202		3,166
Financial liabilities:
Interest Rate Derivative Instruments Not Designated as Hedging Instruments, Liability at Fair Value		15		90
Interest Rate Lock Commitments [Member] | Fair Value, Measurements, Recurring [Member] | Observable Market Data (Level 2) [Member]
Financial assets:
Interest Rate Derivative Instruments Not Designated as Hedging Instruments, Asset at Fair Value		202		3,166
Financial liabilities:
Interest Rate Derivative Instruments Not Designated as Hedging Instruments, Liability at Fair Value		15		90
Interest Rate Lock Commitments [Member] | Fair Value, Measurements, Recurring [Member] | Company Determined Fair Value (Level 3) [Member]
Financial liabilities:
Interest Rate Derivative Instruments Not Designated as Hedging Instruments, Liability at Fair Value		0		0
Forward Contracts [Member]
Financial assets:
Interest Rate Derivative Instruments Not Designated as Hedging Instruments, Asset at Fair Value		587
Financial liabilities:
Interest Rate Derivative Instruments Not Designated as Hedging Instruments, Liability at Fair Value		309
Forward Contracts [Member] | Readily Available Market Prices (Level 1) [Member]
Financial assets:
Interest Rate Derivative Instruments Not Designated as Hedging Instruments, Asset at Fair Value		0
Financial liabilities:
Interest Rate Derivative Instruments Not Designated as Hedging Instruments, Liability at Fair Value		0
Forward Contracts [Member] | Observable Market Data (Level 2) [Member]
Financial assets:
Interest Rate Derivative Instruments Not Designated as Hedging Instruments, Asset at Fair Value		587
Financial liabilities:
Interest Rate Derivative Instruments Not Designated as Hedging Instruments, Liability at Fair Value		309
Forward Contracts [Member] | Company Determined Fair Value (Level 3) [Member]
Financial assets:
Interest Rate Derivative Instruments Not Designated as Hedging Instruments, Asset at Fair Value		0
Financial liabilities:
Interest Rate Derivative Instruments Not Designated as Hedging Instruments, Liability at Fair Value		0
Forward Contracts [Member] | Carrying Amount [Member]
Financial assets:
Interest Rate Derivative Instruments Not Designated as Hedging Instruments, Asset at Fair Value		587
Financial liabilities:
Interest Rate Derivative Instruments Not Designated as Hedging Instruments, Liability at Fair Value		309
Forward Contracts [Member] | Fair Value, Measurements, Recurring [Member]
Financial assets:
Interest Rate Derivative Instruments Not Designated as Hedging Instruments, Asset at Fair Value		587		229
Financial liabilities:
Interest Rate Derivative Instruments Not Designated as Hedging Instruments, Liability at Fair Value		309
Forward Contracts [Member] | Fair Value, Measurements, Recurring [Member] | Observable Market Data (Level 2) [Member]
Financial assets:
Interest Rate Derivative Instruments Not Designated as Hedging Instruments, Asset at Fair Value		587		$ 229
Financial liabilities:
Interest Rate Derivative Instruments Not Designated as Hedging Instruments, Liability at Fair Value		$ 309

[1] Reported fair value represents all MSRs currently being serviced by the Company at December 31, 2015.

[2] Reported fair value represents all MSRs currently being serviced by the Company.

[3] (1)The presented carrying amount is net of the allocated ALL.

[4] (2)Includes the HPFC loan portfolio.