Investment Securities - Fair Value (Details) - USD ($) $ in Thousands	Jun. 30, 2016	Dec. 31, 2015
Reconciliation of amortized cost to fair value of investment securities reported as available for sale
Total	$ 438,270	$ 450,131
Gross Unrealized Gains	10,282	4,741
Gross Unrealized Losses	(1,675)	(3,937)
Fair Value	446,877	450,935
Obligations of U.S. government agencies
Reconciliation of amortized cost to fair value of investment securities reported as available for sale
Total	58,070	47,478
Gross Unrealized Gains	366	269
Gross Unrealized Losses	(420)	(429)
Fair Value	58,016	47,318
Mortgage-backed securities - U.S. government sponsored entities and agencies
Reconciliation of amortized cost to fair value of investment securities reported as available for sale
Total	238,974	246,561
Gross Unrealized Gains	2,634	986
Gross Unrealized Losses	(770)	(2,312)
Fair Value	240,838	245,235
Mortgage-backed securities - Non-agency
Reconciliation of amortized cost to fair value of investment securities reported as available for sale
Total	26,624	34,645
Gross Unrealized Gains	252
Gross Unrealized Losses	(127)	(328)
Fair Value	26,749	34,317
State and municipal securities
Reconciliation of amortized cost to fair value of investment securities reported as available for sale
Total	104,514	105,164
Gross Unrealized Gains	7,030	3,486
Gross Unrealized Losses		(244)
Fair Value	111,544	108,406
Asset backed securities
Reconciliation of amortized cost to fair value of investment securities reported as available for sale
Total	10,088	16,183
Gross Unrealized Losses	(358)	(556)
Fair Value	$ 9,730	15,627
Other investments
Reconciliation of amortized cost to fair value of investment securities reported as available for sale
Total		100
Gross Unrealized Losses		(68)
Fair Value		$ 32

Amount of investment in debt and equity securities categorized neither as held-to-maturity nor trading.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 320
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Reference 2: http://www.xbrl.org/2003/role/presentationRef
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Reference 3: http://www.xbrl.org/2003/role/presentationRef
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