SECURITIES (Tables)

3 Months Ended

Mar. 31, 2015

Investments Debt And Equity Securities [Abstract]

Components of Available for Sale Portfolio

Components of the available for sale portfolio are as follows:

	March 31, 2015
			Gross		Gross
	Amortized		unrealized		unrealized			Fair
	cost		gains		losses			value
	(Dollars in thousands)
Available for Sale
U.S. Treasury and government sponsored entities' securities	$	226,812	$	947	$	(866	)	$	226,893
Mortgage-backed GSE securities: residential		266,255		770		(1,506	)		265,519
Total	$	493,067	$	1,717	$	(2,372	)	$	492,412

	December 31, 2014
			Gross		Gross
	Amortized		unrealized		unrealized			Fair
	cost		gains		losses			value
	(Dollars in thousands)
Available for Sale
U.S. Treasury and government sponsored entities' securities	$	232,225	$	184	$	(4,452	)	$	227,957
Mortgage-backed GSE securities: residential		274,204		331		(2,702	)		271,833
Total	$	506,429	$	515	$	(7,154	)	$	499,790

Debt Securities Available for Sale by Contractual Maturity

Debt securities available for sale by contractual maturity, repricing or expected call date are shown below:

	March 31, 2015
	Amortized cost		Fair value
	(Dollars in thousands)
Due in one year or less	$	—	$	—
Due after one year through five years		—		—
Due after five years through ten years		199,464		199,567
Due after ten years		27,348		27,326
Mortgage-backed GSE securities: residential		266,255		265,519
Total	$	493,067	$	492,412

Securities Available for Sale in Unrealized Loss Position

Securities available for sale that have been in an unrealized loss position for less than twelve months or twelve months or more are as follows:

	March 31, 2015
	Less than 12 months					12 months or more					Total
	Fair		Unrealized loss			Fair		Unrealized loss			Fair		Unrealized loss
	value		Loss			value		Loss			value		Loss
	(Dollars in thousands)
Description of securities:
U.S. Treasury and government sponsored entities	$	41,547	$	(104	)	$	55,810	$	(762	)	$	97,357	$	(866	)
Mortgage-backed GSE securities: residential		30,851		(92	)		108,848		(1,414	)		139,699		(1,506	)
Total temporarily impaired securities	$	72,398	$	(196	)	$	164,658	$	(2,176	)	$	237,056	$	(2,372	)

	December 31, 2014
	Less than 12 months					12 months or more					Total
	Fair		Unrealized loss			Fair		Unrealized loss			Fair		Unrealized loss
	value		Loss			value		Loss			value		Loss
	(Dollars in thousands)
Description of securities:
U.S. Treasury and government sponsored entities	$	—	$	—		$	214,495	$	(4,452	)	$	214,495	$	(4,452	)
Mortgage-backed GSE securities: residential		4,625		(40	)		193,434		(2,662	)		198,059		(2,702	)
Total temporarily impaired securities	$	4,625	$	(40	)	$	407,929	$	(7,114	)	$	412,554	$	(7,154	)