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INVESTMENT SECURITIES (Tables)

3 Months Ended

Mar. 31, 2014

INVESTMENT SECURITIES

Summary of available for sale and held to maturity investment securities

					Gross			Gross			Estimated
		Amortized			Unrealized			Unrealized			Fair
		Cost			Gains			Losses			Value
		(Dollars in thousands)
At March 31, 2014:
Held to Maturity:
Mortgage-backed securities - U.S. Government sponsored entities		$	248,788		$	—		$	(10,006	)	$	238,782

Available for Sale:
Debt securities:
States and political subdivisions		$	191,556		$	861		$	(7,291	)	$	185,126
Corporate securities		156,686			2,332			(727		)	158,291
Mortgage-backed securities:
U.S. Government sponsored entities		902,088			6,948			(9,970		)	899,066
Non-agency collateralized mortgage obligations		166,535			1,423			(3,099		)	164,859
Other		672			110			—			782
Total		$	1,417,537		$	11,674		$	(21,087	)	$	1,408,124

At December 31, 2013:
Held to Maturity:
Mortgage-backed securities - U.S. Government sponsored entities		$	252,047		$	—		$	(13,342	)	$	238,705

Available for Sale:
Debt securities:
States and political subdivisions		$	191,158		$	305		$	(12,106	)	$	179,357
Corporate securities		157,337			1,878			(1,120		)	158,095
Mortgage-backed securities:
U.S. Government sponsored entities		936,144			7,085			(15,603		)	927,626
Non-agency collateralized mortgage obligations		147,902			81			(5,937		)	142,046
Other		755			120			—			875
Total		$	1,433,296		$	9,469		$	(34,766	)	$	1,407,999

Schedule of amortized cost and estimated fair value of investment securities by contractual maturity

		March 31, 2014
		Amortized Cost			Estimated Fair Value
		(Dollars in thousands)
Held to Maturity
Mortage-backed securities		$	248,788		$	238,782

Available for Sale
Due in one year or less		$	2,188		$	2,192
Due after one year through five years		98,528			100,233
Due after five years through ten years		122,509			121,335
Due after ten years		125,017			119,657
Mortage-backed securities		1,068,623			1,063,925
Other		672			782
Total		$	1,417,537		$	1,408,124

Schedule of investment securities in an unrealized loss position

		Less than 12 months						12 months or longer						Total
					Unrealized						Unrealized						Unrealized
Description of Securities		Fair Value			Losses			Fair Value			Losses			Fair Value			Losses
		(Dollars in thousands)
At March 31, 2014:
Debt securities:
States and political subdivisions		$	101,558		$	(4,194	)	$	48,502		$	(3,097	)	$	150,060		$	(7,291	)
Corporate securities		58,999			(727		)	—			—			58,999			(727		)

Mortgage-backed securities:
U.S. Government sponsored entities		802,107			(19,176		)	17,192			(800		)	819,299			(19,976		)
Non-agency collateralized mortgage obligations		78,555			(3,099		)	—			—			78,555			(3,099		)
Total temporarily impaired securities		$	1,041,219		$	(27,196	)	$	65,694		$	(3,897	)	$	1,106,913		$	(31,093	)

At December 31, 2013:
Debt securities:
States and political subdivisions		$	137,176		$	(8,985	)	$	32,747		$	(3,121	)	$	169,923		$	(12,106	)
Corporate securities		75,368			(1,120		)	—			—			75,368			(1,120		)

Mortgage-backed securities:
U.S. Government sponsored entities		909,585			(28,386		)	4,848			(559		)	914,433			(28,945		)
Non-agency collateralized mortgage obligations		129,991			(5,937		)	—			—			129,991			(5,937		)
Total temporarily impaired securities		$	1,252,120		$	(44,428	)	$	37,595		$	(3,680	)	$	1,289,715		$	(48,108	)