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Securities (Tables)

12 Months Ended

Dec. 31, 2019

Investments, Debt and Equity Securities [Abstract]

Schedule of available for sale, debt securities

The following tables summarize available-for-sale securities held by the Company at December 31, 2019 and 2018:

	Available-for-Sale Securities
December 31, 2019	Amortized Cost				Gross Unrealized Gains				Gross Unrealized Losses				Fair Value
(In thousands)
U.S. Treasuries	$	1,840			$	0			$	0			$	1,840
Obligations of U.S. Government sponsored entities	$	367,551			$	5,021			$	84			$	372,488
Obligations of U.S. states and political subdivisions	96,668				1,178				61				97,785
Mortgage-backed securities – residential, issued by
U.S. Government agencies	164,643				1,327				1,519				164,451
U.S. Government sponsored entities	660,037				2,940				3,387				659,590
U.S. corporate debt securities	2,500				0				67				2,433
Total available-for-sale securities	$	1,293,239			$	10,466			$	5,118			$	1,298,587

	Available-for-Sale Securities
December 31, 2018	Amortized Cost				Gross Unrealized Gains				Gross Unrealized Losses				Fair Value
(In thousands)
U.S. Treasuries	$	289			$	0			$	0			$	289
Obligations of U.S. Government sponsored entities	$	493,371			$	80			$	7,553			$	485,898
Obligations of U.S. states and political subdivisions	86,260				113				933				85,440
Mortgage-backed securities – residential, issued by
U.S. Government agencies	131,831				168				3,732				128,267
U.S. Government sponsored entities	649,620				537				19,599				630,558
Non-U.S. Government agencies or sponsored entities	31				0				0				31
U.S. corporate debt securities	2,500				0				325				2,175
Total available-for-sale securities	$	1,363,902			$	898			$	32,142			$	1,332,658

Schedule of held to maturity securities

The following table summarizes held-to-maturity securities held by the Company at December 31, 2018:

	Held-to-Maturity Securities
December 31, 2018	Amortized Cost				Gross Unrealized Gains				Gross Unrealized Losses				Fair Value
(In thousands)
Obligations of U.S. Government sponsored entities	$	131,306			$	0			$	1,198			$	130,108
Obligations of U.S. states and political subdivisions	9,273				20				24				9,269
Total held-to-maturity debt securities	$	140,579			$	20			$	1,222			$	139,377

Schedule of sales transactions of available-for-sale securities

The following table sets forth information with regard to sales transactions of securities available-for-sale:

	Year ended December 31,
(In thousands)	2019				2018				2017
Proceeds from sales	$	232,598			$	70,652			$	64,106
Gross realized gains	1,123				327				19
Gross realized losses	(595		)		(767		)		(426		)
Net gains (losses) on sales of available-for-sale securities	$	528			$	(440	)		$	(407	)

Schedule of debt securities, available for sale with unrealized losses

The following table summarizes available-for-sale securities that had unrealized losses at December 31, 2019:

December 31, 2019
Available-for-Sale Securities	Less than 12 Months								12 Months or Longer								Total
(In thousands)	Fair Value				Unrealized Losses				Fair Value				Unrealized Losses				Fair Value				Unrealized Losses
Obligations of U.S. Government sponsored entities	$	18,654			$	76			$	3,479			$	8			$	22,133			$	84
Obligations of U.S. states and political subdivisions	10,456				54				2,300				7				12,756				61
Mortgage-backed securities – residential, issued by
U.S. Government agencies	54,846				489				45,999				1,030				100,845				1,519
U.S. Government sponsored entities	157,801				752				233,999				2,635				391,800				3,387
U.S. corporate debt securities	0				0				2,433				67				2,433				67
Total available-for-sale securities	$	241,757			$	1,371			$	288,210			$	3,747			$	529,967			$	5,118

Schedule of available for sale securities with unrealized losses

The following table summarizes available-for-sale securities that had unrealized losses at December 31, 2018: 

December 31, 2018
Available-for-Sale Securities	Less than 12 Months								12 Months or Longer								Total
(In thousands)	Fair Value				Unrealized Losses				Fair Value				Unrealized Losses				Fair Value				Unrealized Losses
Obligations of U.S. Government sponsored entities	$	21,660			$	183			$	449,141			$	7,370			$	470,801			$	7,553
Obligations of U.S. states and political subdivisions	11,971				19				49,756				914				61,727				933
Mortgage-backed securities – residential, issued by
U.S. Government agencies	16,854				22				96,247				3,710				113,101				3,732
U.S. Government sponsored entities	61,163				662				512,216				18,937				573,379				19,599
U.S. corporate debt securities	0				0				2,175				325				2,175				325
Total available-for-sale securities	$	111,648			$	886			$	1,109,535			$	31,256			$	1,221,183			$	32,142

Schedule held-to-maturity securities with unrealized losses

The following table summarizes held-to-maturity securities that had unrealized losses at December 31, 2018:

December 31, 2018
Held-to-Maturity Securities	Less than 12 Months								12 Months or Longer								Total
(In thousands)	Fair Value				Unrealized Losses				Fair Value				Unrealized Losses				Fair Value				Unrealized Losses
Obligations of U.S. Government sponsored entities	$	4,980			$	9			$	125,128			$	1,189			$	130,108			$	1,198
Obligations of U.S. sponsored entities	8,127				24				0				0				8,127				24
Total held-to-maturity securities	$	13,107			$	33			$	125,128			$	1,189			$	138,235			$	1,222

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

The amortized cost and estimated fair value of debt securities by contractual maturity are shown in the following table. Expected maturities may differ from contractual maturities because issuers may have the right to call or prepay obligations with or without call or prepayment penalties. Mortgage-backed securities are shown separately since they are not due at a single maturity date. 

December 31, 2019
(In thousands)	Amortized Cost				Fair Value
Available-for-sale securities:
Due in one year or less	$	107,975			$	108,089
Due after one year through five years	270,477				274,798
Due after five years through ten years	77,710				79,165
Due after ten years	12,397				12,494
Total	468,559				474,546
Mortgage-backed securities	824,680				824,041
Total available-for-sale debt securities	$	1,293,239			$	1,298,587

December 31, 2018
(In thousands)	Amortized Cost				Fair Value
Available-for-sale securities:
Due in one year or less	$	78,160			$	77,930
Due after one year through five years	355,499				350,470
Due after five years through ten years	139,560				136,734
Due after ten years	9,201				8,668
Total	582,420				573,802
Mortgage-backed securities	781,482				758,856
Total available-for-sale debt securities	$	1,363,902			$	1,332,658

December 31, 2018
(In thousands)	Amortized Cost				Fair Value
Held-to-maturity securities:
Due in one year or less	$	8,850			$	8,832
Due after one year through five years	86,520				85,645
Due after five years through ten years	45,209				44,900
Due after ten years	0				0
Total held-to-maturity debt securities	$	140,579			$	139,377

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