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Investment in Securities (Tables)

9 Months Ended

Sep. 30, 2018

Investments, Debt and Equity Securities [Abstract]

Schedule of Investment Securities

The amortized cost, gross unrealized gains, gross unrealized losses and fair value of investment securities are summarized as follows:

		September 30, 2018
					Gross			Gross
		Amortized			Unrealized			Unrealized
(In thousands)		Cost			Gains			Losses			Fair Value
State and political subdivisions		$	337,378		$	2,187		$	4,691		$	334,874
U.S. government agencies			108,158			—			2,337			105,821
Certificates of deposit			5,745			—			—			5,745
Total		$	451,281		$	2,187		$	7,028		$	446,440
		December 31, 2017
					Gross			Gross
		Amortized			Unrealized			Unrealized
(In thousands)		Cost			Gains			Losses			Fair Value
State and political subdivisions		$	408,165		$	9,528		$	661		$	417,032
U.S. government agencies			46,222			—			722			45,500
Certificates of deposit			7,991			—			—			7,991
Total		$	462,378		$	9,528		$	1,383		$	470,523

Schedule of the Fair Value of Securities with Unrealized Losses

The fair values of securities with unrealized losses are as follows:

		September 30, 2018
		Less than 12 months						12 months or more						Total
		Estimated			Unrealized			Estimated			Unrealized			Estimated			Unrealized
(In thousands)		Fair Value			Losses			Fair Value			Losses			Fair Value			Losses
State and political subdivisions		$	178,137		$	2,905		$	36,804		$	1,786		$	214,941		$	4,691
U.S. government agencies			79,513			974			26,308			1,363			105,821			2,337
Total		$	257,650		$	3,879		$	63,112		$	3,149		$	320,762		$	7,028
		December 31, 2017
		Less than 12 months						12 months or more						Total
		Estimated			Unrealized			Estimated			Unrealized			Estimated			Unrealized
(In thousands)		Fair Value			Losses			Fair Value			Losses			Fair Value			Losses
State and political subdivisions		$	34,755		$	123		$	31,251		$	538		$	66,006		$	661
U.S. government agencies			34,183			376			11,317			346			45,500			722
Total		$	68,938		$	499		$	42,568		$	884		$	111,506		$	1,383

Schedule of Amortized Cost and Fair Value of Investment

The amortized cost and fair value of investment securities by contractual maturity are shown in the following table. Expected maturities may differ from contractual maturities because borrowers have the right to prepay obligations with or without prepayment penalties.

		September 30, 2018
(In thousands)		Amortized Cost			Fair Value
Due in 1 year or less		$	13,741		$	13,782
Due after 1 year through 5 years			121,838			121,626
Due after 5 years through 10 years			232,821			231,333
Due after 10 years			82,881			79,699
Total		$	451,281		$	446,440

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- Definition

Tabular disclosure of available-for-sale securities which includes, but is not limited to, changes in the cost basis and fair value, fair value and gross unrealized gain (loss), fair values by type of security, contractual maturity and classification, amortized cost basis, contracts to acquire securities to be accounted for as available-for-sale, debt maturities, transfers to trading, change in net unrealized holding gain (loss) net of tax, continuous unrealized loss position fair value, aggregate losses qualitative disclosures, other than temporary impairment (OTTI) losses or other disclosures related to available for sale securities.

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For all investments in an unrealized loss position, including those for which other-than-temporary impairments have not been recognized in earnings (including investments for which a portion of an other-than-temporary impairment has been recognized in other comprehensive income), a tabular disclosure of the aggregate related fair value of investments with unrealized losses and the aggregate amount of unrealized losses (that is, the amount by which amortized cost basis exceeds fair value).

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-Publisher FASB
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Tabular disclosure of the amount of amortization expense expected to be recorded in succeeding fiscal years for finite-lived intangible assets.

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-Publisher FASB
-Name Accounting Standards Codification
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