INVESTMENT SECURITIES (Tables)

12 Months Ended

Dec. 31, 2012

INVESTMENT SECURITIES

Schedule of amortized cost, gross unrealized gains and losses and carrying value, which is the estimated fair value of securities available-for-sale

	December 31, 2012
Security Type	Amortized Cost		Gross Unrealized Gains		Gross Unrealized Losses			Carrying Value
	(In thousands)
Residential mortgage-backed securities:
Government agency and government-sponsored enterprise pass through securities	$	774,677	$	33,618	$	(453	)	$	807,842
Government agency and government-sponsored enterprise collateralized mortgage obligations		99,956		1,870		(132	)		101,694
Covered private label collateralized mortgage obligations		36,078		8,729		(123	)		44,684
Municipal securities		339,547		10,445		(1,951	)		348,041
Corporate debt securities		42,014		432		(81	)		42,365
Other securities		6,389		4,370		—			10,759
Total securities available-for-sale	$	1,298,661	$	59,464	$	(2,740	)	$	1,355,385

	December 31, 2011
Security Type	Amortized Cost		Gross Unrealized Gains		Gross Unrealized Losses			Carrying Value
	(In thousands)
Residential mortgage-backed securities:
Government agency and government-sponsored enterprise pass through securities	$	1,011,222	$	31,350	$	(65	)	$	1,042,507
Government agency and government-sponsored enterprise collateralized mortgage obligations		80,353		1,710		(36	)		82,027
Covered private label collateralized mortgage obligations		41,426		5,878		(2,155	)		45,149
Municipal securities		124,079		2,774		(56	)		126,797
Corporate debt securities		25,077		77		(26	)		25,128
Other securities		4,885		—		(135	)		4,750
Total securities available-for-sale	$	1,287,042	$	41,789	$	(2,473	)	$	1,326,358

Schedule of carrying values and the gross unrealized losses on securities by length of time the securities were in an unrealized loss position

	December 31, 2012
	Less than 12 months					12 months or longer					Total
Security Type	Carrying Value		Gross Unrealized Losses			Carrying Value		Gross Unrealized Losses			Carrying Value		Gross Unrealized Losses
	(In thousands)
Residential mortgage-backed securities:
Government agency and government-sponsored enterprise pass through securities	$	67,299	$	(452	)	$	60	$	(1	)	$	67,359	$	(453	)
Government agency and government-sponsored enterprise collateralized mortgage obligations		18,317		(132	)		—		—			18,317		(132	)
Covered private label collateralized mortgage obligations		—		—			1,692		(123	)		1,692		(123	)
Municipal securities		90,303		(1,951	)		—		—			90,303		(1,951	)
Corporate debt securities		16,819		(81	)		—		—			16,819		(81	)
Total	$	192,738	$	(2,616	)	$	1,752	$	(124	)	$	194,490	$	(2,740	)

	December 31, 2011
	Less than 12 months					12 months or longer					Total
Security Type	Carrying Value		Gross Unrealized Losses			Carrying Value		Gross Unrealized Losses			Carrying Value		Gross Unrealized Losses
	(In thousands)
Residential mortgage-backed securities:
Government agency and government-sponsored enterprise pass through securities	$	34,682	$	(64	)	$	22	$	(1	)	$	34,704	$	(65	)
Government agency and government-sponsored enterprise collateralized mortgage obligations		10,790		(21	)		1,530		(15	)		12,320		(36	)
Covered private label collateralized mortgage obligations		5,228		(595	)		4,427		(1,560	)		9,655		(2,155	)
Municipal securities		7,755		(56	)		—		—			7,755		(56	)
Corporate debt securities		10,758		(26	)		—		—			10,758		(26	)
Other securities		2,445		(135	)		—		—			2,445		(135	)
Total	$	71,658	$	(897	)	$	5,979	$	(1,576	)	$	77,637	$	(2,473	)

Schedule of contractual maturity distribution of the entity's available-for-sale securities portfolio based on amortized cost and carrying value

	December 31, 2012
Maturity	Amortized Cost		Carrying Value
	(In thousands)
Due in one year or less	$	11,687	$	16,185
Due after one year through five years		3,180		3,311
Due after five years through ten years		31,013		33,008
Due after ten years		1,252,781		1,302,881
Total securities available-for-sale	$	1,298,661	$	1,355,385