INVESTMENT SECURITIES (Tables)

12 Months Ended

Dec. 31, 2013

Investment securities available-for-sale portfolio

			Gross		Gross		Estimated
	Amortized		Unrealized		Unrealized		Fair
	Cost		Gains		Losses		Value
			(In thousands)
As of December 31, 2013
Investment securities available-for-sale:
U.S. Treasury securities	$	495,053	$	201	$	(3,622)	$	491,632
U.S. Government agency and U.S. Government sponsored enterprise debt securities	406,807		242		(12,726)		394,323
U.S. Government agency and U.S. Government sponsored enterprise mortgage-backed securities:
Commercial mortgage-backed securities	182,257		1,062		(4,449)		178,870
Residential mortgage-backed securities	892,435		7,729		(14,927)		885,237
Municipal securities	297,390		1,122		(17,533)		280,979
Other residential mortgage-backed securities:
Investment grade	48,129		—		(1,802)		46,327
Other commercial mortgage-backed securities:
Investment grade	51,000		617		—		51,617
Corporate debt securities:
Investment grade	312,726		613		(3,344)		309,995
Non-investment grade (1)	20,668		62		(5,629)		15,101
Other securities	80,025		555		(864)		79,716
Total investment securities available-for-sale	$	2,786,490	$	12,203	$	(64,896)	$	2,733,797

			Gross		Gross		Estimated
	Amortized		Unrealized		Unrealized		Fair
	Cost		Gains		Losses		Value
			(In thousands)
As of December 31, 2012
Investment securities available-for-sale:
U.S. Treasury securities	$	459,613	$	1,135	$	(71)	$	460,677
U.S. Government agency and U.S. Government sponsored enterprise debt securities	197,264		673		(82)		197,855
U.S. Government agency and U.S. Government sponsored enterprise mortgage-backed securities:
Commercial mortgage-backed securities	174,036		6,665		(36)		180,665
Residential mortgage-backed securities	1,123,880		20,883		(678)		1,144,085
Municipal securities	163,333		4,491		(731)		167,093
Other commercial mortgage-backed securities:
Investment grade	16,999		85		—		17,084
Corporate debt securities:
Investment grade	429,318		237		(17,572)		411,983
Non-investment grade (1)	24,620		355		(7,558)		17,417
Other securities	9,955		215		—		10,170
Total investment securities available-for-sale	$	2,599,018	$	34,739	$	(26,728)	$	2,607,029

(1) For 2013, the Company did not record any OTTI. For 2012, the Company recorded $99 thousand, on a pre-tax basis, of the credit portion of OTTI through earnings and $5.1 million of the non-credit portion of OTTI for pooled trust preferred securities in other comprehensive income.

Schedule of other than temporary impairment, credit losses recognized in earnings

	2013		2012
	(In thousands)
Beginning balance	$	115,511	$	115,412
Addition of other-than-temporary impairment that was not previously recognized	—		—
Additional increases to the amount related to the credit loss for which an other-than-temporary impairment was previously recognized	—		99
Reduction for securities sold	—		—
Ending balance	$	115,511	$	115,511

Gross unrealized losses and related fair values of investment securities available-for-sale

	Less Than 12 Months					12 Months or More					Total
	Fair			Unrealized		Fair			Unrealized		Fair			Unrealized
	Value			Losses		Value			Losses		Value			Losses
						(In thousands)
As of December 31, 2013
Investment securities available-for-sale:
U.S. Treasury securities	$		337,248	$	(3,622)	$	—		$	—	$		337,248	$		(3,622)
U.S. Government agency and U.S. Government sponsored enterprise debt securities	387,097			(12,726)		—			—		387,097			(12,726)
U.S. Government agency and U.S. Government sponsored enterprise mortgage-backed securities:
Commercial mortgage-backed securities	114,754			(3,280)		16,065			(1,169)		130,819			(4,449)
Residential mortgage-backed securities	502,285			(10,570)		92,540			(4,357)		594,825			(14,927)
Municipal securities	173,782			(10,765)		47,892			(6,768)		221,674			(17,533)
Other residential mortgage-backed securities:
Investment grade	46,328			(1,802)		—			—		46,328			(1,802)
Corporate debt securities:
Investment grade	193,482			(1,538)		79,442			(1,806)		272,924			(3,344)
Non-investment grade	—			—		14,422			(5,629)		14,422			(5,629)
Other securities	48,098			(864)		—			—		48,098			(864)
Total investment securities available-for-sale	$	1,803,074		$	(45,167)	$		250,361	$	(19,729)	$	2,053,435		$	(64,896)

	Less Than 12 Months				12 Months or More				Total
	Fair		Unrealized		Fair		Unrealized		Fair			Unrealized
	Value		Losses		Value		Losses		Value			Losses
					(In thousands)
As of December 31, 2012
Investment securities available-for-sale:
U.S. Treasury securities	$	95,232	$	(71)	$	—	$	—	$		95,232	$	(71)
U.S. Government agency and U.S. Government sponsored enterprise debt securities	24,912		(82)		—		—		24,912			(82)
U.S. Government agency and U.S. Government sponsored enterprise mortgage-backed securities:
Commercial mortgage-backed securities	10,013		(36)		—		—		10,013			(36)
Residential mortgage-backed securities	215,826		(678)		—		—		215,826			(678)
Municipal securities	48,363		(731)		—		—		48,363			(731)
Corporate debt securities:
Investment grade	225,819		(5,391)		182,697		(12,181)		408,516			(17,572)
Non-investment grade	—		—		12,574		(7,558)		12,574			(7,558)
Other securities	—		—		—		—		—			—
Total investment securities available-for-sale	$	620,165	$	(6,989)	$	195,271	$	(19,739)	$	815,436		$	(26,728)

Schedule maturities of investment securities

The scheduled maturities of investment securities at December 31, 2013 are presented as follows:

	Amortized		Estimated
	Cost		Fair Value
	(In thousands)
Due within one year	$	417,774	$	401,970
Due after one year through five years	547,189		542,293
Due after five years through ten years	750,811		732,404
Due after ten years	1,070,716		1,057,130
Total investment securities available-for-sale	$	2,786,490	$	2,733,797

- Definition

Tabular disclosure of available-for-sale securities which includes, but is not limited to, changes in the cost basis and fair value, fair value and gross unrealized gain (loss), fair values by type of security, contractual maturity and classification, amortized cost basis, contracts to acquire securities to be accounted for as available-for-sale, debt maturities, transfers to trading, change in net unrealized holding gain (loss) net of tax, continuous unrealized loss position fair value, aggregate losses qualitative disclosures, other than temporary impairment (OTTI) losses or other disclosures related to available for sale securities.

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- Definition

Tabular disclosure of the amount of other than temporary impairment (OTTI) related to credit losses recognized in earnings including: (a) the beginning balance of the amount related to credit losses on debt securities held by the investor at the beginning of the period for which a portion of an OTTI was recognized in other comprehensive income; (b) additions for the amount related to the credit loss for which an OTTI was not previously recognized; (c) reductions for securities sold during the period (realized); (d) reductions for securities for which the amount previously recognized in other comprehensive income was recognized in earnings because the investor intends to sell the security or more likely than not will be required to sell the security before recovery of its amortized cost basis; (e) additional increases to the amount related to the credit loss for which an OTTI was previously recognized when the investor does not intend to sell the security and it is not more likely than not that the investor will be required to sell the security before recovery of its amortized cost basis; (f) reductions for increases in cash flows expected to be collected that are recognized over the remaining life of the security; and (g) the ending balance of the amount related to credit losses on debt securities held by the entity at the end of the period for which a portion of an OTTI was recognized in other comprehensive income.

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