Securities (Tables)

12 Months Ended

Dec. 31, 2017

Investments [Abstract]

Schedule of Securities Available-for-Sale

The amortized cost, unrealized gross gains and losses recognized in accumulated other comprehensive income (loss), and fair value of Securities Available-for-Sale were as follows:

Securities Available-for-Sale:	Amortized Cost		Gross Unrealized Gains		Gross Unrealized Losses			Fair Value
2017
Obligations of State and Political Subdivisions	$	267,437	$	6,733	$	(861	)	$	273,309
MBS/CMO – Residential	476,205		416		(9,289		)	467,332
Equity Securities	353		—		—			353
Total	$	743,995	$	7,149	$	(10,150	)	$	740,994
2016
Obligations of State and Political Subdivisions	$	247,350	$	3,847	$	(3,678	)	$	247,519
MBS/CMO - Residential	471,852		480		(10,418		)	461,914
Equity Securities	353		—		—			353
Total	$	719,555	$	4,327	$	(14,096	)	$	709,786

Schedule of Securities by Contractual Maturity

The amortized cost and fair value of Securities at December 31, 2017 by contractual maturity are shown below. Expected maturities may differ from contractual maturities because some issuers have the right to call or prepay certain obligations with or without call or prepayment penalties. Mortgage-backed and Equity Securities are not due at a single maturity date and are shown separately.

	Amortized Cost		Fair Value
Securities Available-for-Sale:
Due in one year or less	$	2,706	$	2,739
Due after one year through five years	23,789		24,531
Due after five years through ten years	78,661		81,215
Due after ten years	162,281		164,824
MBS/CMO - Residential	476,205		467,332
Equity Securities	353		353
Total	$	743,995	$	740,994

Schedule of Proceeds from the Sales of Securities

	2017		2016		2015
Proceeds from the Sales of Securities are summarized below:	Available- for-Sale		Available- for-Sale		Available- for-Sale
Proceeds from Sales	$	49,459	$	165,102	$	18,999
Gross Gains on Sales	596		1,979		725
Income Taxes on Gross Gains	209		693		254

Schedule of Securities with Unrealized Losses

Below is a summary of securities with unrealized losses as of year-end 2017 and 2016, presented by length of time the securities have been in a continuous unrealized loss position: 

	Less than 12 Months					12 Months or More					Total
	Fair Value		Unrealized Loss			Fair Value		Unrealized Loss			Fair Value		Unrealized Loss
At December 31, 2017
Obligations of State and Political Subdivisions	$	33,230	$	(237	)	$	24,161	$	(624	)	$	57,391	$	(861	)
MBS/CMO - Residential	172,354		(2,048		)	250,520		(7,241		)	422,874		(9,289		)
Equity Securities	—		—			—		—			—		—
Total	$	205,584	$	(2,285	)	$	274,681	$	(7,865	)	$	480,265	$	(10,150	)

	Less than 12 Months					12 Months or More					Total
	Fair Value		Unrealized Loss			Fair Value		Unrealized Loss			Fair Value		Unrealized Loss
At December 31, 2016
Obligations of State and Political Subdivisions	$	108,918	$	(3,678	)	$	—	$	—		$	108,918	$	(3,678	)
MBS/CMO - Residential	356,040		(8,782		)	47,271		(1,636		)	403,311		(10,418		)
Equity Securities	—		—			—		—			—		—
Total	$	464,958	$	(12,460	)	$	47,271	$	(1,636	)	$	512,229	$	(14,096	)