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Investment Securities (Tables)

12 Months Ended

Dec. 31, 2012

Amortized cost and fair value of the securities available for sale

The amortized cost and fair value of the securities available for sale are as follows:

(dollars in thousands)	December 31, 2012
			Gross		Gross
	Amortized		Unrealized		Unrealized		Fair
	Cost		Gains		Losses		Value


U.S. government sponsored enterprises	$	262,063		1,055		10		263,108
State and political subdivisions		25,815		642		-		26,457
Mortgage backed securities and collateralized mortgage obligations - residential		515,322		3,982		528		518,776
Corporate bonds		26,312		336		119		26,529
Small Business Administration-guaranteed participation securities		75,674		888		-		76,562
Other		650		-		-		650
Total debt securities		905,836		6,903		657		912,082
Equity securities		10		-		-		10
Total securities available for sale	$	905,846		6,903		657		912,092

	December 31, 2011
			Gross		Gross
	Amortized		Unrealized		Unrealized		Fair
	Cost		Gains		Losses		Value

U.S. government sponsored enterprises	$	562,588		1,171		300		563,459
State and political subdivisions		42,812		1,156		-		43,968
Mortgage backed securities and collateralized mortgage obligations - residential		202,103		2,335		415		204,023
Corporate bonds		102,248		70		5,710		96,608
Other		650		-		-		650
Total debt securities		910,401		4,732		6,425		908,708
Equity securities		10		-		-		10
Total securities available for sale	$	910,411		4,732		6,425		908,718

Investment [Line Items]

Proceeds from sales and calls of securities available for sale, gross realized gains and gross realized losses

The proceeds from sales and calls of securities available for sale, gross realized gains and gross realized losses from sales and calls during 2012, 2011 and 2010 are as follows:

(dollars in thousands)	December 31,
	2012		2011		2010

Proceeds from sales	$	154,944		47,296		261,374
Proceeds from calls		1,049,442		1,124,649		937,061
Gross realized gains		2,584		1,472		3,769
Gross realized losses		423		44		417

Amortized cost and fair value of the held to maturity securities

The amortized cost and fair value of the held to maturity securities are as follows:

(dollars in thousands)	December 31, 2012
			Gross		Gross
	Amortized		Unrecognized		Unrecognized		Fair
	Cost		Gains		Losses		Value

Mortgage backed securities and collateralized mortgage obligations - residential	$	108,471		5,724		-		114,195
Corporate bonds		34,955		1,976		-		36,931
Total held to maturity	$	143,426		7,700		-		151,126

	December 31, 2011
			Gross		Gross
	Amortized		Unrecognized		Unrecognized		Fair
	Cost		Gains		Losses		Value

U.S. government sponsored enterprises	$	15,000		19		-		15,019
Mortgage backed securities and collateralized mortgage obligations - residential		141,857		7,727		46		149,538
Corporate bonds		59,431		834		382		59,883
Total held to maturity	$	216,288		8,580		428		224,440

Securities held in available for sale and held to maturity greater than 10% of shareholders equity

The Company has the following balances of securities held in the available for sale and held to maturity portfolios as of December 31, 2012 that represent greater than 10% of shareholders equity:

	Amortized		Fair
	Cost		Value
Small Business Administration	$	75,674		76,562
Federal Home Loan Mortgage Corporation		173,337		174,609
Government National Mortgage Association		123,664		129,106
Federal National Mortgage Association		572,970		576,347

Securities available for sale [Member]

Investment [Line Items]

Debt securities based on the securities final maturity

The following table distributes the debt securities included in the available for sale portfolio as of December 31, 2012, based on the securities' final maturity (mortgage-backed securities and collateralized mortgage obligations are stated using an estimated average life):

(dollars in thousands)	Amortized		Fair
	Cost		Value
Due in one year or less	$	13,392		13,462
Due in one year through five years		754,117		758,752
Due after five years through ten years		129,359		130,483
Due after ten years		8,968		9,385
	$	905,836		912,082

Gross unrealized losses on investment securities and the related fair values aggregated by the length of time that individual securities have been in an unrealized loss position

Gross unrealized losses on securities available for sale and the related fair values aggregated by the length of time that individual securities have been in an unrealized loss position, were as follows:

(dollars in thousands)	December 31, 2012
	Less than				12 months
	12 months				or more				Total
			Gross				Gross				Gross
	Fair		Unreal.		Fair		Unreal.		Fair		Unreal.
	Value		Loss		Value		Loss		Value		Loss
U.S. government sponsored enterprises	$	15,491		10		-		-		15,491		10
Mortgage backed securities and collateralized mortgage obligations - residential		178,689		528		-		-		178,689		528
Corporate bonds		10,283		119		-		-		10,283		119
Total	$	204,463		657		-		-		204,463		657

	December 31, 2011
	Less than				12 months
	12 months				or more				Total
			Gross				Gross				Gross
	Fair		Unreal.		Fair		Unreal.		Fair		Unreal.
	Value		Loss		Value		Loss		Value		Loss
U.S. government sponsored enterprises	$	147,881		300		-		-		147,881		300
Mortgage backed securities and collateralized mortgage obligations - residential		107,369		369		781		46		108,150		415
Corporate bonds		72,077		4,487		19,467		1,223		91,544		5,710
Total	$	327,327		5,156		20,248		1,269		347,575		6,425

Held to maturity securities [Member]

Investment [Line Items]

Debt securities based on the securities final maturity

The following table distributes the debt securities included in the held to maturity portfolio as of December 31, 2012, based on the securities' final maturity (mortgage-backed securities and collateralized mortgage obligations are stated using an estimated average life):

(dollars in thousands)	Amortized		Fair
	Cost		Value
Due in one year or less	$	25,025		25,220
Due in one year through five years		104,948		111,781
Due in five years through ten years		13,453		14,125
	$	143,426		151,126

Gross unrealized losses on investment securities and the related fair values aggregated by the length of time that individual securities have been in an unrealized loss position

There were no held to maturity securities in an unrealized loss position at December 31, 2012. Gross unrealized losses on held to maturity securities and the related fair values aggregated by the length of time that individual securities have been in an unrealized loss position at December 31, 2011, were as follows:

	December 31, 2011
	Less than				12 months
	12 months				or more				Total
			Gross				Gross				Gross
	Fair		Unrec.		Fair		Unrec.		Fair		Unrec.
	Value		Loss		Value		Loss		Value		Loss
Mortgage backed securities and collateralized mortgage obligations - residential	$	19,328		46		-		-		19,328		46
Corporate bonds		9,532		382		-		-		9,532		382
Total	$	28,860		428		-		-		28,860		428

- Definition

Tabular disclosure of all significant concentrations of risk, including credit risk and market risk, arising from all financial instruments (as defined), whether from an individual counterparty or groups of counterparties. The disclosure concerning concentrations of risk may consist of the following information: (1) for concentrations of credit risk disclosure may include: (a) information about the (shared) activity, region, or economic characteristic that identifies the concentration, (b) the maximum amount of loss due to credit risk that, based on the gross fair value of the financial instrument, the entity would incur if parties to the financial instruments that make up the concentration failed completely to perform according to the terms of the contracts and the collateral or other security, if any, for the amount due proved to be of no value to the entity, (c) the policy of requiring collateral or other security to support financial instruments subject to credit risk, information about the entity's access to that collateral or other security, and the nature and a brief description of the collateral or other security supporting those financial instruments, and (d) the policy of entering into master netting arrangements to mitigate the credit risk of financial instruments, information about the arrangements for which the entity is a party, and a brief description of the terms of those arrangements, including the extent to which they would reduce the entity's maximum amount of loss due to credit risk and (2) for disclosure of quantitative information about the market risks of financial instruments that is consistent with the way the company manages or adjusts those risks, disclosure may include: (a) more details about current positions and perhaps activity during the period, (b) the hypothetical effects on comprehensive income (or net assets), or annual income, of several possible changes in market prices, (c) a gap analysis of interest rate re-pricing or maturity dates, (d) the duration of the financial instruments, (e) the entity's value at risk from derivatives and from other positions at the end of the reporting period and the average value at risk during the year, or (f) other ways of reporting quantitative information as internally developed.

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- Definition

Tabular disclosure of all investments in certain debt and equity securities for which the entity has the positive intent and ability to hold until maturity.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 815

-SubTopic 10

-Section 50

-Paragraph 9

-URI http://asc.fasb.org/extlink&oid=6435544&loc=d3e41834-113960

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 310

-SubTopic 10

-Section 50

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-URI http://asc.fasb.org/extlink&oid=7512638&loc=d3e5086-111524

Reference 3: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

-Number 115

-Paragraph 137

-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 4: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 320

-SubTopic 10

-Section 50

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-URI http://asc.fasb.org/extlink&oid=6872113&loc=d3e27232-111563

Reference 5: http://www.xbrl.org/2003/role/presentationRef

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-Name Accounting Standards Codification

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-URI http://asc.fasb.org/extlink&oid=6872113&loc=d3e27337-111563

Reference 6: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

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-URI http://asc.fasb.org/extlink&oid=6872113&loc=d3e27405-111563

Reference 7: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

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-URI http://asc.fasb.org/extlink&oid=6957658&loc=d3e62586-112803

Reference 8: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

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-URI http://asc.fasb.org/extlink&oid=6957658&loc=d3e62557-112803

Reference 9: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 320

-SubTopic 10

-Section 50

-Paragraph 6

-URI http://asc.fasb.org/extlink&oid=6872113&loc=d3e27290-111563

+ Details