Investments (Tables)

12 Months Ended

Dec. 31, 2013

Investments [Abstract]

Schedule of Available-for-sale Securities Reconciliation

The following table presents the amortized cost, gross unrealized gains and losses and fair value of securities available for sale:

	December 31, 2013
(in thousands)	Amortized Cost		Gross Unrealized Gains		Gross Unrealized Losses			Fair Value
Available for sale securities:
Obligations of U.S. Government-sponsored enterprises	$	93,218	$	700	$	(388	)	$	93,530
Obligations of states and political subdivisions	49,721		983		(1,761		)	48,943
Agency mortgage-backed securities	298,623		2,675		(9,184		)	292,114
	$	441,562	$	4,358	$	(11,333	)	$	434,587
	December 31, 2012
(in thousands)	Amortized Cost		Gross Unrealized Gains		Gross Unrealized Losses			Fair Value
Available for sale securities:
Obligations of U.S. Government-sponsored enterprises	$	149,039	$	3,329	$	—		$	152,368
Obligations of states and political subdivisions	51,202		2,279		(478		)	53,003
Agency mortgage-backed securities	427,221		7,884		(264		)	434,841
	$	627,462	$	13,492	$	(742	)	$	640,212

Investments Classified by Contractual Maturity Date

(in thousands)	Amortized Cost		Estimated Fair Value
Due in one year or less	$	887	$	893
Due after one year through five years	107,842		108,582
Due after five years through ten years	20,512		20,387
Due after ten years	13,698		12,611
Mortgage-backed securities	298,623		292,114
	$	441,562	$	434,587

Schedule of Unrealized Loss on Investments

The following table represents a summary of available for sale investment securities that had an unrealized loss:

	December 31, 2013
	Less than 12 months				12 months or more				Total
(in thousands)	Fair Value		Unrealized Losses		Fair Value		Unrealized Losses		Fair Value		Unrealized Losses
Obligations of U.S. Government-sponsored enterprises	$	30,221	$	388	$	—	$	—	$	30,221	$	388
Obligations of states and political subdivisions	17,141		952		7,168		809		24,309		1,761
Agency mortgage-backed securities	159,999		7,338		21,437		1,846		181,436		9,184
	$	207,361	$	8,678	$	28,605	$	2,655	$	235,966	$	11,333
	December 31, 2012
	Less than 12 months				12 months or more				Total
(in thousands)	Fair Value		Unrealized Losses		Fair Value		Unrealized Losses		Fair Value		Unrealized Losses
Obligations of states and political subdivisions	$	6,434	$	122	$	3,389	$	356	$	9,823	$	478
Agency mortgage-backed securities	40,471		143		11,266		121		51,737		264
	$	46,905	$	265	$	14,655	$	477	$	61,560	$	742

Schedule of Realized Gain (Loss)

The gross gains and gross losses realized from sales of available for sale investment securities were as follows:

	December 31,
(in thousands)	2013			2012			2011
Gross gains realized	$	1,477		$	1,399		$	1,450
Gross losses realized	(182		)	(243		)	—
Proceeds from sales	159,604			110,876			84,456