SECURITIES (Tables)

3 Months Ended

Mar. 31, 2013

Summary of Amortized Costs and Estimated Fair Values of Available-For-Sale Securities

The following tables summarize the amortized costs and estimated fair values of securities available-for-sale ("AFS"), as of March 31, 2013 and December 31, 2012:

	Amortized Cost		Unrealized Gains		Unrealized Losses			Fair Value
March 31, 2013
Obligations of states and political subdivisions	$	29,181	$	1,786	$	-		$	30,967
Mortgage-backed securities issued or guaranteed by U.S. government sponsored enterprises		340,550		10,925		(630	)		350,845
Collateralized mortgage obligations issued or guaranteed by U.S. government sponsored enterprises		409,866		5,373		(1,325	)		413,914
Private issue collateralized mortgage obligations		8,556		-		(662	)		7,894
Total securities available-for-sale	$	788,153	$	18,084	$	(2,617	)	$	803,620
December 31, 2012
Obligations of states and political subdivisions	$	31,112	$	1,928	$	-		$	33,040
Mortgage-backed securities issued or guaranteed by U.S. government sponsored enterprises		345,528		12,699		(79	)		358,148
Collateralized mortgage obligations issued or guaranteed by U.S. government sponsored enterprises		375,627		6,181		(120	)		381,688
Private issue collateralized mortgage obligations		8,871		-		(697	)		8,174
Total securities available-for-sale	$	761,138	$	20,808	$	(896	)	$	781,050

Unrealized Gross Losses and Estimated Fair Values of Investment Securities by Length of Time that Individual Securities in Each Category in Continuous Loss Position

The following table presents the estimated fair values and gross unrealized losses of investment securities that were in a continuous loss position at March 31, 2013 and December 31, 2012, by length of time that individual securities in each category have been in a continuous loss position:

	Less Than 12 Months					12 Months or More					Total
	Fair Value		Unrealized Losses			Fair Value		Unrealized Losses			Fair Value		Unrealized Losses
March 31, 2013
Mortgage-backed securities	$	70,023	$	(630	)	$	15	$	-		$	70,038	$	(630	)
Collateralized mortgage obligations		125,125		(1,325	)		-		-			125,125		(1,325	)
Private issue collateralized mortgage obligations		160		(1	)		7,725		(661	)		7,885		(662	)
Total	$	195,308	$	(1,956	)	$	7,740	$	(661	)	$	203,048	$	(2,617	)
December 31, 2012
Mortgage-backed securities	$	42,782	$	(79	)	$	-	$	-		$	42,782	$	(79	)
Collateralized mortgage obligations		73,098		(120	)		-		-			73,098		(120	)
Private issue collateralized mortgage obligations		-		-			8,174		(697	)		8,174		(697	)
Total	$	115,880	$	(199	)	$	8,174	$	(697	)	$	124,054	$	(896	)

Company's Sales of Securities

The following table details the Company's sales of investment securities, the gross realized gains and losses, and impairment of securities:

	Three Months Ended March 31,
Available-for-sale	2013		2012
Proceeds from sales of securities	$	4,875	$	13,040
Gross realized gains		138		153
Gross realized (losses)		-		(3	)
Other-than-temporary impairment of securities		-		(29	)

Amortized Cost and Estimated Fair Values of Debt Securities by Contractual Maturity

Available-for-sale	Amortized Cost		Fair Value
Due in one year or less	$	1,769	$	1,812
Due after one year through five years		23,249		24,102
Due after five years through ten years		133,781		138,478
Due after ten years		629,354		639,228
	$	788,153	$	803,620