Fair Value (Summary of Financial Assets and Liabilities Measured at Fair Value on Recurring Basis) (Details) - USD ($) $ in Thousands		Dec. 31, 2018	Dec. 31, 2017
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Loans Held-for-sale		$ 4,403	$ 8,103
Financial Assets:
AFS securities		910,692	789,899
Other Investments		14,679	23,670
Obligations of states and political subdivisions [Member]
Financial Assets:
AFS securities		93,752	7,335
Mortgage-backed securities issued or guaranteed by U.S. government sponsored enterprises [Member]
Financial Assets:
AFS securities		453,672	503,302
Collateralized Mortgage Obligations Issued By United States Government Sponsored Enterprises [Member]
Financial Assets:
AFS securities		342,894	272,799
Equity Securities [Member]
Financial Assets:
AFS securities	[1]		806
Fair Value, Measurements, Recurring [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Loans Held-for-sale		4,403	8,103
Financial Liabilities:
Junior subordinated debt interest rate swaps		5,682	7,571
Fair Value, Measurements, Recurring [Member] | Obligations of states and political subdivisions [Member]
Financial Assets:
AFS securities		93,752
Fair Value, Measurements, Recurring [Member] | Mortgage-backed securities issued or guaranteed by U.S. government sponsored enterprises [Member]
Financial Assets:
AFS securities		453,672	7,335
Fair Value, Measurements, Recurring [Member] | Collateralized Mortgage Obligations Issued By United States Government Sponsored Enterprises [Member]
Financial Assets:
AFS securities		342,894	503,302
Fair Value, Measurements, Recurring [Member] | Corporate Bond Securities [Member]
Financial Assets:
AFS securities		20,374	272,799
Fair Value, Measurements, Recurring [Member] | Equity Securities [Member]
Financial Assets:
AFS securities			5,657
Other Investments		746
Readily Available Market Prices (Level 1) [Member] | Fair Value, Measurements, Recurring [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Loans Held-for-sale		0	0
Readily Available Market Prices (Level 1) [Member] | Fair Value, Measurements, Recurring [Member] | Corporate Bond Securities [Member]
Financial Assets:
AFS securities		0	0
Readily Available Market Prices (Level 1) [Member] | Fair Value, Measurements, Recurring [Member] | Equity Securities [Member]
Financial Assets:
AFS securities		0	0
Observable Market Data (Level 2) [Member] | Fair Value, Measurements, Recurring [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Loans Held-for-sale		4,403	8,103
Financial Liabilities:
Junior subordinated debt interest rate swaps		5,682	7,571
Observable Market Data (Level 2) [Member] | Fair Value, Measurements, Recurring [Member] | Obligations of states and political subdivisions [Member]
Financial Assets:
AFS securities		93,752
Observable Market Data (Level 2) [Member] | Fair Value, Measurements, Recurring [Member] | Mortgage-backed securities issued or guaranteed by U.S. government sponsored enterprises [Member]
Financial Assets:
AFS securities		453,672	7,335
Observable Market Data (Level 2) [Member] | Fair Value, Measurements, Recurring [Member] | Collateralized Mortgage Obligations Issued By United States Government Sponsored Enterprises [Member]
Financial Assets:
AFS securities		342,894	503,302
Observable Market Data (Level 2) [Member] | Fair Value, Measurements, Recurring [Member] | Corporate Bond Securities [Member]
Financial Assets:
AFS securities		20,374	272,799
Observable Market Data (Level 2) [Member] | Fair Value, Measurements, Recurring [Member] | Equity Securities [Member]
Financial Assets:
AFS securities			5,657
Other Investments		746
Company Determined Fair Value (Level 3) [Member] | Fair Value, Measurements, Recurring [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Loans Held-for-sale		0	0
Company Determined Fair Value (Level 3) [Member] | Fair Value, Measurements, Recurring [Member] | Corporate Bond Securities [Member]
Financial Assets:
AFS securities		0	0
Company Determined Fair Value (Level 3) [Member] | Fair Value, Measurements, Recurring [Member] | Equity Securities [Member]
Financial Assets:
AFS securities		0	0
Interest Rate Swap [Member] | Fair Value, Measurements, Recurring [Member]
Financial Assets:
Customer interest rate swaps		7,841	5,036
Financial Liabilities:
Customer interest rate swaps		7,841	5,036
Interest Rate Swap [Member] | Observable Market Data (Level 2) [Member] | Fair Value, Measurements, Recurring [Member]
Financial Assets:
Customer interest rate swaps		7,841	5,036
Financial Liabilities:
Customer interest rate swaps		7,841	5,036
Interest Rate Lock Commitments [Member] | Fair Value, Measurements, Recurring [Member]
Financial Assets:
Customer interest rate swaps		95	307
Financial Liabilities:
Customer interest rate swaps		28	22
Interest Rate Lock Commitments [Member] | Observable Market Data (Level 2) [Member] | Fair Value, Measurements, Recurring [Member]
Financial Assets:
Customer interest rate swaps		95	307
Financial Liabilities:
Customer interest rate swaps		28	22
Interest Rate Lock Commitments [Member] | Company Determined Fair Value (Level 3) [Member] | Fair Value, Measurements, Recurring [Member]
Financial Liabilities:
Customer interest rate swaps		0	0
Forward Contracts [Member] | Fair Value, Measurements, Recurring [Member]
Financial Assets:
Customer interest rate swaps		32	158
Financial Liabilities:
Customer interest rate swaps		17	16
Forward Contracts [Member] | Observable Market Data (Level 2) [Member] | Fair Value, Measurements, Recurring [Member]
Financial Assets:
Customer interest rate swaps		32	158
Financial Liabilities:
Customer interest rate swaps		17	16
Forward-Starting Interest Rate Swap [Member] | Fair Value, Measurements, Recurring [Member]
Financial Liabilities:
Junior subordinated debt interest rate swaps		30	21
Forward-Starting Interest Rate Swap [Member] | Observable Market Data (Level 2) [Member] | Fair Value, Measurements, Recurring [Member]
Financial Liabilities:
Junior subordinated debt interest rate swaps		$ 30	21
Other Assets [Member] | Fair Value, Measurements, Recurring [Member]
Financial Assets:
Customer interest rate swaps			806
Other Assets [Member] | Observable Market Data (Level 2) [Member] | Fair Value, Measurements, Recurring [Member]
Financial Assets:
Customer interest rate swaps			$ 806

[1] (1) As of December 31, 2017, equity investments with a readily determinable fair value were designated and presented as AFS investments on the consolidated statements of condition. Upon adoption of ASU 2016-01, effective January 1, 2018, these investments were no longer eligible for designation, accounting and presentation as AFS. At December 31, 2018, the Company's equity investments with a readily determinable fair value were presented within other investments on the consolidated statements of condition. Refer to Note 1 for further details.