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Investment Securities (Tables)

6 Months Ended

Jun. 30, 2018

Investments [Abstract]

Amortized Cost And Fair Value Of Investment Securities

		Amortized				Unrealized				Unrealized				Fair
		Cost				Gains				Losses				Value
June 30, 2018
Securities available for sale:
U.S. Government agency and government sponsored enterprises		$	162,330			$	11			$	4,815			$	157,526
Mortgage-backed securities:
Federal National Mortgage Association			296,084				52				9,954				286,182
Federal Home Loan Mortgage Corporation			38,387				15				1,655				36,747
Government National Mortgage Association			10,595				140				102				10,633
Collateralized mortgage obligations:
Federal National Mortgage Association			163				—				—				163
Federal Home Loan Mortgage Corporation			40				—				—				40
Privately issued			—				937				—				937
Total mortgage-backed securities			345,269				1,144				11,711				334,702
Total available for sale securities		$	507,599			$	1,155			$	16,526			$	492,228
Securities held to maturity:
State and political subdivisions			250,791				1,287				1,559				250,519
Mortgage-backed securities:
Federal National Mortgage Association			10,574				—				340				10,234
Federal Home Loan Mortgage Corporation			4,662				—				226				4,436
Government National Mortgage Association			33,934				13				954				32,993
Collateralized mortgage obligations:
Federal National Mortgage Association			68,906				—				2,966				65,940
Federal Home Loan Mortgage Corporation			85,824				—				3,705				82,119
Government National Mortgage Association			20,112				—				811				19,301
Total mortgage-backed securities			224,012				13				9,002				215,023
Total held to maturity securities		$	474,803			$	1,300			$	10,561			$	465,542
December 31, 2017
Securities available for sale:
U.S. Government agency and government sponsored enterprises		$	163,025			$	122			$	1,258			$	161,889
Mortgage-backed securities:
Federal National Mortgage Association			311,830				313				3,220				308,923
Federal Home Loan Mortgage Corporation			41,290				76				675				40,691
Government National Mortgage Association			12,051				193				12				12,232
Collateralized mortgage obligations:
Federal National Mortgage Association			217				1				1				217
Federal Home Loan Mortgage Corporation			45				—				—				45
Privately issued			—				976				—				976
Total mortgage-backed securities			365,433				1,559				3,908				363,084
Total available for sale securities		$	528,458			$	1,681			$	5,166			$	524,973

(4.) INVESTMENT SECURITIES (Continued)

		Amortized				Unrealized				Unrealized				Fair
		Cost				Gains				Losses				Value
December 31, 2017 (continued)
Securities held to maturity:
State and political subdivisions			283,557				2,317				662				285,212
Mortgage-backed securities:
Federal National Mortgage Association			9,732				16				88				9,660
Federal Home Loan Mortgage Corporation			3,213				—				119				3,094
Government National Mortgage Association			26,841				—				330				26,511
Collateralized mortgage obligations:
Federal National Mortgage Association			76,432				—				1,958				74,474
Federal Home Loan Mortgage Corporation			93,810				3				2,165				91,648
Government National Mortgage Association			22,881				5				502				22,384
Total mortgage-backed securities			232,909				24				5,162				227,771
Total held to maturity securities		$	516,466			$	2,341			$	5,824			$	512,983

Sales And Calls Of Securities Available For Sale

		Three months ended June 30,								Six months ended June 30,
		2018				2017				2018				2017
Proceeds from sales		$	5,768			$	12,957			$	5,768			$	25,307
Gross realized gains			9				210				9				416
Gross realized losses			2				—				2				—

Scheduled Maturities Of Securities Available For Sale And Securities Held To Maturity

		Amortized				Fair
		Cost				Value
Debt securities available for sale:
Due in one year or less		$	26,364			$	26,197
Due from one to five years			144,174				140,856
Due after five years through ten years			238,443				229,545
Due after ten years			98,618				95,630
		$	507,599			$	492,228
Debt securities held to maturity:
Due in one year or less		$	55,989			$	56,177
Due from one to five years			151,052				151,799
Due after five years through ten years			88,698				85,681
Due after ten years			179,064				171,885
		$	474,803			$	465,542

Investments Gross Unrealized Losses And Fair Value

		Less than 12 months								12 months or longer												Total
		Fair				Unrealized				Fair						Unrealized						Fair				Unrealized
		Value				Losses				Value						Losses						Value				Losses
June 30, 2018
Securities available for sale:
U.S. Government agency and government sponsored    enterprises		$	123,345			$	3,328			$	30,701					$	1,487					$	154,046			$	4,815
Mortgage-backed securities:
Federal National Mortgage Association			219,797				7,637				63,598						2,317						283,395				9,954
Federal Home Loan Mortgage Corporation			21,415				751				14,438						904						35,853				1,655
Government National Mortgage Association			4,410				97				789						5						5,199				102
Collateralized mortgage obligations:
Federal National Mortgage Association			—				—				77						—						77				—
Federal Home Loan Mortgage Corporation			—				—				7						—						7				—
Total mortgage-backed securities			245,622				8,485				78,909						3,226						324,531				11,711
Total available for sale securities			368,967				11,813				109,610						4,713						478,577				16,526
Securities held to maturity:
State and political subdivisions			65,548				883				15,698						676						81,246				1,559
Mortgage-backed securities:
Federal National Mortgage Association			7,662				202				2,572						138						10,234				340
Federal Home Loan Mortgage Corporation			1,474				13				2,962						213						4,436				226
Government National Mortgage Association			11,967				399				13,627						555						25,594				954
Collateralized mortgage obligations:
Federal National Mortgage Association			16,268				500				49,672						2,466						65,940				2,966
Federal Home Loan Mortgage Corporation			20,606				799				61,513						2,906						82,119				3,705
Government National Mortgage Association			6,940				282				12,361						529						19,301				811
Total mortgage-backed securities			64,917				2,195				142,707						6,807						207,624				9,002
Total held to maturity securities			130,465				3,078				158,405						7,483						288,870				10,561
Total temporarily impaired securities		$	499,432			$	14,891			$	268,015					$	12,196					$	767,447			$	27,087
December 31, 2017
Securities available for sale:
U.S. Government agencies and government sponsored    enterprises		$	95,046			$	571			$	31,561					$	687					$	126,607			$	1,258
Mortgage-backed securities:
Federal National Mortgage Association			201,754				1,855				67,383						1,365						269,137				3,220
Federal Home Loan Mortgage Corporation			20,446				192				15,601						483						36,047				675
Government National Mortgage Association			2,432				—				880						12						3,312				12
Collateralized mortgage obligations:
Federal National Mortgage Association			—				—				119						1						119				1
Federal Home Loan Mortgage Corporation			—				—				8						—						8				—
Total mortgage-backed securities			224,632				2,047				83,991						1,861						308,623				3,908
Total available for sale securities			319,678				2,618				115,552						2,548						435,230				5,166

(4.) INVESTMENT SECURITIES (Continued)

		Less than 12 months								12 months or longer								Total
		Fair				Unrealized				Fair				Unrealized				Fair				Unrealized
		Value				Losses				Value				Losses				Value				Losses
December 31, 2017 (continued)
Securities held to maturity:
State and political subdivisions			36,368				295				14,492				367				50,860				662
Mortgage-backed securities:
Federal National Mortgage Association			3,766				29				2,694				59				6,460				88
Federal Home Loan Mortgage Corporation			—				—				3,094				119				3,094				119
Government National Mortgage Association			17,327				136				9,184				194				26,511				330
Collateralized mortgage obligations:
Federal National Mortgage Association			16,830				202				57,645				1,756				74,475				1,958
Federal Home Loan Mortgage Corporation			23,727				337				66,467				1,828				90,194				2,165
Government National Mortgage Association			15,401				340				5,635				162				21,036				502
Total mortgage-backed securities			77,051				1,044				144,719				4,118				221,770				5,162
Total held to maturity securities			113,419				1,339				159,211				4,485				272,630				5,824
Total temporarily impaired securities		$	433,097			$	3,957			$	274,763			$	7,033			$	707,860			$	10,990

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+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 320
-SubTopic 10
-Section 50
-Paragraph 6
-URI http://asc.fasb.org/extlink&oid=82897076&loc=d3e27290-111563

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