INVESTMENT SECURITIES (Tables)

6 Months Ended

Jun. 30, 2015

			Gross		Gross			Estimated
	Amortized		Unrealized		Unrealized			Fair
	Cost		Gains		Losses			Value
	(Dollars in thousands)
At June 30, 2015:
Held to Maturity:
Mortgage-backed securities:
Residential - U.S. Government sponsored entities	$	166,200	$	111	$	(3,081	)	$	163,230
Commercial - U.S. Government sponsored entities	96,578		—		(658		)	95,920
Total	$	262,778	$	111	$	(3,739	)	$	259,150

Available for Sale:
Debt securities:
States and political subdivisions	$	188,899	$	2,169	$	(2,811	)	$	188,257
Corporate securities	98,454		1,262		(154		)	99,562
Mortgage-backed securities:
Residential - U.S. Government sponsored entities	776,223		7,559		(5,715		)	778,067
Residential - Non-government agencies	69,603		1,273		(519		)	70,357
Commercial - Non-government agencies	135,535		2,566		(950		)	137,151
Other	817		101		—			918
Total	$	1,269,531	$	14,930	$	(10,149	)	$	1,274,312

At December 31, 2014:
Held to Maturity:
Mortgage-backed securities:
Residential - U.S. Government sponsored entities	$	140,741	$	196	$	(2,150	)	$	138,787
Commercial - U.S. Government sponsored entities	97,546		—		(736		)	96,810
Total	$	238,287	$	196	$	(2,886	)	$	235,597

Available for Sale:
Debt securities:
States and political subdivisions	$	191,280	$	2,054	$	(1,689	)	$	191,645
Corporate securities	99,237		1,492		(125		)	100,604
Mortgage-backed securities:
Residential - U.S. Government sponsored entities	744,527		11,064		(4,033		)	751,558
Residential - Non-government agencies	45,275		1,510		(92		)	46,693
Commercial - Non-government agencies	135,630		2,946		(935		)	137,641
Other	757		120		—			877
Total	$	1,216,706	$	19,186	$	(6,874	)	$	1,229,018

	June 30, 2015
	Amortized Cost		Estimated Fair Value
	(Dollars in thousands)
Held to Maturity
Mortage-backed securities:
Residential - U.S. Government sponsored entities	$	166,200	$	163,230
Commercial - U.S. Government sponsored entities	96,578		95,920
Total	$	262,778	$	259,150

Available for Sale
Due in one year or less	$	2,567	$	2,660
Due after one year through five years	76,206		77,321
Due after five years through ten years	96,501		96,678
Due after ten years	112,079		111,160
Mortage-backed securities:
Residential - U.S. Government sponsored entities	776,223		778,067
Residential - Non-government agencies	69,603		70,357
Commercial - Non-government agencies	135,535		137,151
Other	817		918
Total	$	1,269,531	$	1,274,312

	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 June 30, 2015:
Debt securities:
States and political subdivisions	$	66,678	$	(1,558	)	$	22,780	$	(1,253	)	$	89,458	$	(2,811	)
Corporate securities	26,349		(154		)	—		—			26,349		(154		)
Mortgage-backed securities:
Residential - U.S. Government sponsored entities	464,847		(6,464		)	87,126		(2,332		)	551,973		(8,796		)
Residential - Non-government agencies	30,478		(519		)	—		—			30,478		(519		)
Commercial - U.S. Government sponsored entities	95,920		(658		)	—		—			95,920		(658		)
Commercial - Non-government agencies	57,620		(794		)	4,653		(156		)	62,273		(950		)
Total temporarily impaired securities	$	741,892	$	(10,147	)	$	114,559	$	(3,741	)	$	856,451	$	(13,888	)

At December 31, 2014:
Debt securities:
States and political subdivisions	$	23,591	$	(145	)	$	68,622	$	(1,544	)	$	92,213	$	(1,689	)
Corporate securities	23,938		(125		)	—		—			23,938		(125		)
Mortgage-backed securities:
Residential - U.S. Government sponsored entities	107,755		(487		)	318,571		(5,696		)	426,326		(6,183		)
Residential - Non-government agencies	15,895		(92		)	—		—			15,895		(92		)
Commercial - U.S. Government sponsored entities	11,455		(34		)	85,355		(702		)	96,810		(736		)
Commercial - Non-government agencies	4,962		(8		)	47,539		(927		)	52,501		(935		)
Total temporarily impaired securities	$	187,596	$	(891	)	$	520,087	$	(8,869	)	$	707,683	$	(9,760	)