Securities (Tables)

12 Months Ended

Dec. 31, 2013

Investments Debt And Equity Securities [Abstract]

Amortized Cost, Gross Unrealized Gains and Losses and Estimated Fair Value of Securities Classified as Available for Sale and Held to Maturity

The following table sets forth the amortized cost, gross unrealized gains and losses and the estimated fair value of securities classified as available for sale and held to maturity at December 31:

	2013								2012
	Amortized Cost		Gross Unrealized				Estimated Fair Value		Amortized Cost		Gross Unrealized				Estimated Fair Value
			Gains		Losses						Gains		Losses
	(In thousands)
Classified as Available for Sale
U.S. Treasury and government agencies	$	94,427	$	35	$	770	$	93,692	$	53,197	$	36	$	10	$	53,223
Mortgage-backed securities — residential		349,216		2,211		11,732		339,695		290,063		5,337		312		295,088
Obligations of states and political subdivisions		87,884		1,520		100		89,304		79,638		2,974		10		82,602
Other debt securities		9,529		4		4		9,529		11,319		1		7,572		3,748
Total debt securities		541,056		3,770		12,606		532,220		434,217		8,348		7,904		434,661
Mutual funds and other equity securities		9,729		636		387		9,978		10,026		507		124		10,409
Total	$	550,785	$	4,406	$	12,993	$	542,198	$	444,243	$	8,855	$	8,028	$	445,070

	Amortized Cost		Gross Unrecognized				Estimated Fair Value		Amortized Cost		Gross Unrecognized				Estimated Fair Value
			Gains		Losses						Gains		Losses
	(In thousands)
Classified as Held To Maturity
Mortgage-backed securities — residential	$	3,133	$	249		—	$	3,382	$	5,083	$	415		—	$	5,498
Obligations of states and political subdivisions		3,105		69		—		3,174		5,142		185		—		5,327
Total	$	6,238	$	318		—	$	6,556	$	10,225	$	600		—	$	10,825

Change in Pretax OTTI Credit Related Losses on Securities Available for Sale

The following table summarizes the change in pretax OTTI credit related losses on securities available for sale for the periods indicated:

	2013		2012			2011
	(In thousands)
Balance at beginning of period:
Total OTTI credit related impairment charges beginning of period	$	10,002	$	9,478		$	9,110
Increase to the amount related to the credit loss for which other-than-temporary impairment was previously recognized		1,240		528			368
Credit related impairment dispositions		—		(4	)		—
Credit related impairment not previously recognized		—		—			—
Balance at end of period:	$	11,242	$	10,002		$	9,478

Fair Value and Gross Unrealized Loss, Aggregated by Investment Category and Length of Time Individual Securities

The following tables reflect the Company’s investments fair value and gross unrealized loss, aggregated by investment category and length of time the individual securities have been in a continuous unrealized loss position at the dates indicated:

	Less Than 12 Months				Greater than 12 Months				Total
December 31, 2013	Fair Value		Gross Unrealized Loss		Fair Value		Gross Unrealized Loss		Fair Value		Gross Unrealized Loss
	(In thousands)
Available for sale:
U.S. Treasuries and government agencies	$	53,299	$	761	$	3,469	$	9	$	56,768	$	770
Mortgage-backed securities — residential		240,192		10,593		20,216		1,139		260,408		11,732
Obligations of states and political subdivisions		8,060		94		1,322		6		9,382		100
Other debt securities		203		2		98		2		301		4
Total debt securities		301,754		11,450		25,105		1,156		326,859		12,606
Mutual funds and other equity securities		—		—		8,785		387		8,785		387
Total temporarily impaired securities	$	301,754	$	11,450	$	33,890	$	1,543	$	335,644	$	12,993

	Less Than 12 Months				Greater than 12 Months				Total
December 31, 2012	Fair Value		Gross Unrealized Loss		Fair Value		Gross Unrealized Loss		Fair Value		Gross Unrealized Loss
	(In thousands)
Available for sale:
U.S. Treasuries and government agencies	$	8,048	$	10		—		—	$	8,048	$	10
Mortgage-backed securities — residential		47,211		312		—		—		47,211		312
Obligations of states and political subdivisions		2,963		10		—		—		2,963		10
Other debt securities		367		1	$	2,950	$	7,571		3,317		7,572
Total debt securities		58,589		333		2,950		7,571		61,539		7,904
Mutual funds and other equity securities		12		1		96		123		108		124
Total temporarily impaired securities	$	58,601	$	334	$	3,046	$	7,694	$	61,647	$	8,028

Contractual Maturity of All Debt Securities

The contractual maturity of all debt securities held at December 31, 2013 is shown below. Actual maturities may differ from contractual maturities because some issuers have the right to call or prepay obligations with or without call or prepayment penalties.

	Available for Sale				Held to Maturity
	Amortized Cost		Fair Value		Amortized Cost		Fair Value
	(In thousands)
Contractual Maturity
Within 1 year	$	24,731	$	24,830		—		—
After 1 year but within 5 years		151,886		152,384	$	3,105	$	3,174
After 5 year but within 10 years		6,470		6,558		—		—
After 10 years		8,753		8,753		—		—
Mortgage-backed securities — residential		349,216		339,695		3,133		3,382
Total	$	541,056	$	532,220	$	6,238	$	6,556