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Amount of available-for-sale debt securities at cost, net of adjustments, that do not have a single maturity date and which the entity has decided to disclose separately rather than allocating the cost over several maturity groupings. Adjustments include, but are not limited to, accretion, amortization, collection of cash, previous other-than-temporary impairments (OTTI) recognized in earnings (less any cumulative-effect adjustments, as defined) and fair value hedge accounting adjustments.

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The cash inflow associated with the sale of debt and equity securities classified as available-for-sale securities.

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Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

-Number 95

-Paragraph 16

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SECURITIES (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended			9 Months Ended
	Sep. 30, 2012 item	Mar. 31, 2012 item	Sep. 30, 2011	Sep. 30, 2012 item	Sep. 30, 2011	Dec. 31, 2011
Available for sale securities
Amortized Cost	$ 858,912			$ 858,912		$ 840,872
Gross Unrealized Gains	43,480			43,480		35,604
Gross Unrealized Losses	(214)			(214)		(386)
Fair Value	902,178			902,178		876,090
Available for Sale, Amortized Cost
Within one year	5,802			5,802
One through five years	50,678			50,678
Six through ten years	86,632			86,632
After ten years	165,686			165,686
Equity securities	4,939			4,939
Total available for sale securities	858,912			858,912		840,872
Available for Sale, Fair Value
Within one year	5,877			5,877
One through five years	53,389			53,389
Six through ten years	94,213			94,213
After ten years	184,549			184,549
Equity securities	4,939			4,939
Total securities available-for-sale	902,178			902,178		876,090
Available for sale securities
Proceeds from sales of securities	43,290		41,144	64,176	161,744
Gross gains realized on sales	874		1,263	1,944	5,000
Gross losses realized on sales	42		0	77	83
Impairment loss recognized		500
Number of investments on which impairment loss was recognized		1
Fair Value of one of the equity holdings		250
Securities in a continuous unrealized loss position with unrealized losses presented by length of time
Less than 12 months, Fair Value	37,846			37,846		78,541
Less than 12 months, Unrealized Losses	(205)			(205)		(343)
12 months or longer, Fair Value	282			282		237
12 months or longer, Unrealized Losses	(9)			(9)		(43)
Total Fair Value	38,128			38,128		78,778
Total Unrealized Losses	(214)			(214)		(386)
Other-Than-Temporary-Impairment
Number of general segments segregated in investment securities portfolio				2
Number of securities in the portfolio				969
Number of portfolio securities in unrealized loss position	9			9
U. S. government agency
Available for sale securities
Amortized Cost	1,851			1,851
Gross Unrealized Gains	33			33
Fair Value	1,884			1,884
Available for Sale, Amortized Cost
Total available for sale securities	1,851			1,851
Available for Sale, Fair Value
Total securities available-for-sale	1,884			1,884
State and municipal
Available for sale securities
Amortized Cost	303,380			303,380		320,269
Gross Unrealized Gains	29,224			29,224		24,723
Gross Unrealized Losses	(15)			(15)		(115)
Fair Value	332,589			332,589		344,877
Available for Sale, Amortized Cost
Total available for sale securities	303,380			303,380		320,269
Available for Sale, Fair Value
Total securities available-for-sale	332,589			332,589		344,877
Securities in a continuous unrealized loss position with unrealized losses presented by length of time
Less than 12 months, Fair Value	340			340		1,576
Less than 12 months, Unrealized Losses	(6)			(6)		(72)
12 months or longer, Fair Value	282			282		237
12 months or longer, Unrealized Losses	(9)			(9)		(43)
Total Fair Value	622			622		1,813
Total Unrealized Losses	(15)			(15)		(115)
Mortgage-backed securities-residential (GSE's)
Available for sale securities
Amortized Cost	226,028			226,028		264,619
Gross Unrealized Gains	9,570			9,570		7,074
Gross Unrealized Losses						(189)
Fair Value	235,598			235,598		271,504
Available for Sale, Amortized Cost
Debt securities without single maturity date	226,028			226,028
Total available for sale securities	226,028			226,028		264,619
Available for Sale, Fair Value
Debt securities without single maturity date	235,598			235,598
Total securities available-for-sale	235,598			235,598		271,504
Securities in a continuous unrealized loss position with unrealized losses presented by length of time
Less than 12 months, Fair Value						50,493
Less than 12 months, Unrealized Losses						(189)
Total Fair Value						50,493
Total Unrealized Losses						(189)
Collateralized mortgage obligations
Available for sale securities
Amortized Cost	319,147			319,147		246,985
Gross Unrealized Gains	4,653			4,653		3,807
Gross Unrealized Losses	(187)			(187)		(25)
Fair Value	323,613			323,613		250,767
Available for Sale, Amortized Cost
Debt securities without single maturity date	319,147			319,147
Total available for sale securities	319,147			319,147		246,985
Available for Sale, Fair Value
Debt securities without single maturity date	323,613			323,613
Total securities available-for-sale	323,613			323,613		250,767
Securities in a continuous unrealized loss position with unrealized losses presented by length of time
Less than 12 months, Fair Value	36,516			36,516		25,527
Less than 12 months, Unrealized Losses	(187)			(187)		(25)
Total Fair Value	36,516			36,516		25,527
Total Unrealized Losses	(187)			(187)		(25)
Agency collateralized mortgage obligations
Available for sale securities
Gross Unrealized Losses	187			187
Equity securities
Available for sale securities
Amortized Cost	4,939			4,939		5,410
Fair Value	4,939			4,939		5,410
Available for Sale, Amortized Cost
Total available for sale securities	4,939			4,939		5,410
Available for Sale, Fair Value
Total securities available-for-sale	4,939			4,939		5,410
Other securities
Available for sale securities
Amortized Cost	3,567			3,567		3,589
Gross Unrealized Losses	(12)			(12)		(57)
Fair Value	3,555			3,555		3,532
Available for Sale, Amortized Cost
Total available for sale securities	3,567			3,567		3,589
Available for Sale, Fair Value
Total securities available-for-sale	3,555			3,555		3,532
Securities in a continuous unrealized loss position with unrealized losses presented by length of time
Less than 12 months, Fair Value	990			990		945
Less than 12 months, Unrealized Losses	(12)			(12)		(57)
Total Fair Value	990			990		945
Total Unrealized Losses	$ (12)			$ (12)		$ (57)
Other-Than-Temporary-Impairment
Number of single issue trust preferred securities to which the unrealized losses on other securities are related				1