Securities Available-for-Sale (Tables)

9 Months Ended

Sep. 30, 2013

Text Block [Abstract]

Summary of Securities Available-for-Sale

	September 30, 2013								December 31, 2012
	Amortized Cost		Gross Unrealized Gains		Gross Unrealized Losses		Fair Value		Amortized Cost		Gross Unrealized Gains		Gross Unrealized Losses		Fair Value
	(In thousands)
U.S. Treasury	$	1,997	$	—	$	1	$	1,996	$	2,000	$	4	$	—	$	2,004
U.S. Government Sponsored Enterprises		9,995		3		—		9,998		130,048		360		68		130,340
Small Business Administration		7,414		17		—		7,431		8,043		113		—		8,156
U.S. Government Agency and Sponsored Enterprises Mortgage Backed Securities		429,665		1,032		1,388		429,309		1,212,953		20,816		412		1,233,357
Privately Issued Residential Mortgage Backed Securities		2,434		6		22		2,418		2,938		31		22		2,947
Obligations Issued by States and Political Subdivisions		41,720		18		725		41,013		55,855		41		722		55,174
Other Debt Securities		2,300		—		111		2,189		2,300		—		47		2,253
Equity Securities		406		141		—		547		458		112		—		570
Total	$	495,931	$	1,217	$	2,247	$	494,901	$	1,414,595	$	21,477	$	1,271	$	1,434,801

Maturity Distribution of Securities Available-for-Sale

The following table shows the maturity distribution of the Company’s securities available-for-sale at September 30, 2013.

	Amortized Cost		Fair Value
	(In thousands)
Within one year	$	36,030	$	36,072
After one but within five years		228,332		228,266
After five but within ten years		217,786		217,202
More than 10 years		11,876		11,426
Non-maturing		1,907		1,935
Total	$	495,931	$	494,901

Continuous Unrealized Loss Position for 12 Months or Less and 12 Months or Longer

The following table shows the temporarily impaired securities of the Company’s available-for-sale portfolio at September 30, 2013. This table shows the unrealized market loss of securities that have been in a continuous unrealized loss position for 12 months or less and a continuous loss position for 12 months and longer. There are 51 and 4 securities that are temporarily impaired for less than 12 months and for 12 months or longer, respectively, out of a total of 245 holdings at September 30, 2013.

	September 30, 2013
	Less than 12 months				12 months or longer				Total
Temporarily Impaired Investments	Fair Value		Unrealized Losses		Fair Value		Unrealized Losses		Fair Value		Unrealized Losses
	(In thousands)
U.S. Government Sponsored Enterprises	$	1,996	$	1	$	—	$	—	$	1,996	$	1
U.S. Government Agency and Sponsored Enterprises Mortgage Backed Securities		328,829		1,368		1,945		20		330,774		1,388
Privately Issued Residential Mortgage Backed Securities		1, 575		22		—		—		1,575		22
Obligations Issued by States and Political Subdivisions		—		—		3,963		725		3,963		725
Other Debt Securities		—		—		1,389		111		1,389		111
Total temporarily impaired securities	$	332,400	$	1,391	$	7,297	$	856	$	339,697	$	2,247

The following table shows the temporarily impaired securities of the Company’s available-for-sale portfolio at December 31, 2012. This table shows the unrealized market loss of securities that have been in a continuous unrealized loss position for 12 months or less and a continuous loss position for 12 months and longer. There are 20 and 7 securities that are temporarily impaired for less than 12 months and for 12 months or longer, respectively, out of a total of 458 holdings at December 31, 2012.

	December 31, 2012
	Less than 12 months				12 months or longer				Total
Temporarily Impaired Investments	Fair Value		Unrealized Losses		Fair Value		Unrealized Losses		Fair Value		Unrealized Losses
	(In thousands)
U.S. Government Sponsored Enterprises	$	34,967	$	68	$	—	$	—	$	34,967	$	68
U.S. Government Agency and Sponsored Enterprises Mortgage Backed Securities		93,006		383		10,169		29		103,175		412
Privately Issued Residential Mortgage Backed Securities		—		—		1,863		22		1,863		22
Obligations Issued by States and Political Subdivisions		—		—		3,963		722		3,963		722
Other Debt Securities		—		—		1,453		47		1,453		47
Equity Securities		—		—		—		—		—		—
Total temporarily impaired securities	$	127,973	$	451	$	17,448	$	820	$	145,421	$	1,271