SECURITIES (Tables)

6 Months Ended

Jun. 30, 2016

SECURITIES [Abstract]

Amortized Cost And Estimated Fair Values Of Available-For-Sale Securities

		June 30, 2016
			Gross	Gross	Estimated
		Amortized	Unrealized	Unrealized	Fair
		Cost	Gains	Losses	Value
	(In thousands)
U.S. Government agencies		$   1,302,238	$        8,565	$                -	$   1,310,803
Government agency issued residential
mortgage-backed securities		177,195	3,066	83	180,178
Government agency issued commercial
mortgage-backed securities		188,222	5,268	15	193,475
Obligations of states and political subdivisions		374,134	25,263	6	399,391
Other		19,173	863	-	20,036
Total		$   2,060,962	$      43,025	$           104	$   2,103,883

		December 31, 2015
			Gross	Gross	Estimated
		Amortized	Unrealized	Unrealized	Fair
		Cost	Gains	Losses	Value
	(In thousands)
U.S. Government agencies		$   1,246,261	$           826	$        2,447	$   1,244,640
Government agency issued residential
mortgage-backed securities		138,759	1,957	176	140,540
Government agency issued commercial
mortgage-backed securities		261,544	2,414	3,265	260,693
Obligations of states and political subdivisions		394,769	22,813	83	417,499
Other		18,112	845	-	18,957
Total		$   2,059,445	$      28,855	$        5,971	$   2,082,329

	June 30, 2015
		Gross	Gross	Estimated
	Amortized	Unrealized	Unrealized	Fair
	Cost	Gains	Losses	Value
	(In thousands)
U.S. Government agencies	$   1,331,589	$        5,341	$             84	$   1,336,846
Government agency issued residential
mortgage-backed securities	214,390	3,518	717	217,191
Government agency issued commercial
mortgage-backed securities	224,386	2,064	2,000	224,450
Obligations of states and political subdivisions	434,980	23,488	146	458,322
Other	13,123	1,221	-	14,344
Total	$   2,218,468	$      35,632	$        2,947	$   2,251,153

Amortized Cost And Estimated Fair Value Of Available-For-Sale Securities By Contractual Maturity

	June 30, 2016
		Estimated	Weighted
	Amortized	Fair	Average
	Cost	Value	Yield
	(Dollars in thousands)
Maturing in one year or less	$      380,547	$      381,075	0.91	%
Maturing after one year through five years	1,023,283	1,033,003	1.36
Maturing after five years through ten years	49,906	53,281	5.77
Maturing after ten years	241,809	262,871	5.72
Mortgage-backed securities	365,417	373,653	2.08
Total	$   2,060,962	$   2,103,883

Temporarily Impaired Available-For-Sale Securities With Continuous Unrealized Loss Positions

	June 30, 2016
	Continuous Unrealized Loss Position
	Less Than 12 Months		12 Months or Longer		Total
	Fair	Unrealized	Fair	Unrealized	Fair	Unrealized
	Value	Losses	Value	Losses	Value	Losses
	(In thousands)
Government agency issued residential
mortgage-backed securities	$       21,771	$            76	$       4,691	$              7	$       26,462	$            83
Government agency issued commercial
mortgage-backed securities	14,049	13	658	2	14,707	15
Obligations of states and
political subdivisions	657	6	-	-	657	6
Total	$       36,477	$            95	$       5,349	$              9	$       41,826	$          104

	December 31, 2015
	Continuous Unrealized Loss Position
	Less Than 12 Months		12 Months or Longer		Total
	Fair	Unrealized	Fair	Unrealized	Fair	Unrealized
	Value	Losses	Value	Losses	Value	Losses
	(In thousands)
U.S. Government agencies	$     762,568	$        2,447	$                -	$                -	$     762,568	$        2,447
Government agency issued residential mortgage-backed securities	34,238	176	-	-	34,238	176
Government agency issued commercial mortgage-backed securities	193,621	2,710	31,166	555	224,787	3,265
Obligations of states and political subdivisions	13,576	70	2,856	13	16,432	83
Total	$  1,004,003	$        5,403	$      34,022	$           568	$  1,038,025	$        5,971