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Employee Benefit Plans (Tables)

12 Months Ended

Dec. 31, 2017

Employee Benefit Plans [Abstract]

Reconciliation Of The Plan's Benefit Obligations, Fair Value Of Assets And The Funded Status

		2017			2016
Change in projected benefit obligation:
Projected benefit obligation at beginning of period	$	63,002		$	59,232
Service cost		3,140			2,885
Interest cost		2,449			2,402
Actuarial (gain) loss		5,016			1,210
Benefits paid and plan expenses		(3,171	)		(2,727	)
Projected benefit obligation at end of period		70,436			63,002
Change in plan assets:
Fair value of plan assets at beginning of period		75,252			72,358
Actual return on plan assets		11,267			5,621
Employer contributions		-			-
Benefits paid and plan expenses		(3,171	)		(2,727	)
Fair value of plan assets at end of period		83,348			75,252
Funded status at end of period	$	12,912		$	12,250

Estimated Benefit Payments Under The Pension Plan

2018	$	2,846
2019		2,885
2020		3,109
2021		3,311
2022		3,528
2023 - 2027		20,500

Components Of Net Periodic Benefit Expense

		2017			2016			2015
Service cost	$	3,140		$	2,885		$	2,324
Interest cost on projected benefit obligation		2,449			2,402			2,328
Expected return on plan assets		(4,775	)		(4,600	)		(4,820	)
Amortization of unrecognized loss		1,142			938			926
Amortization of unrecognized prior service cost		17			20			20
Net periodic pension cost	$	1,973		$	1,645		$	778

Actuarial Assumptions Used

	2017		2016		2015
Weighted average discount rate	4.00	%	4.21	%	3.86	%
Rate of compensation increase	3.00	%	3.00	%	3.00	%
Expected long-term rate of return	6.50	%	6.50	%	6.50	%

	2017		2016		2015
Weighted average discount rate	3.49	%	4.00	%	4.21	%
Rate of compensation increase	3.00	%	3.00	%	3.00	%

Target Allocation, Percentage Of Plan Assets And Weighted Average Expected Rate Of Return

							Weighted
							Average
	2017		Percentage of Plan Assets				Expected
	Target		at December 31,				Long-term
	Allocation		2017		2016		Rate of Return
Asset category:
Cash equivalents	0 – 20%		6.4	%	6.1	%	0.18	%
Equity securities	40 – 60		50.2		47.9		4.02
Fixed income securities	40 – 60		40.2		42.6		2.06
Other financial instruments	0 – 5		3.2		3.4		0.24

Changes In Fair Value Of Plan Assets

Level 3 assets, January 1, 2016	$	2,670
Realized Gain		52
Sales		(381	)
Unrealized gains		296
Level 3 assets, December 31, 2016		2,637
Realized Gain		43
Purchases		103
Sales		(224	)
Unrealized gains		82
Level 3 assets, December 31, 2017	$	2,641

The Major Categories Of Plan Assets Measured At Fair Value On a Recurring Basis

		Level 1		Level 2		Level 3		Total
		Inputs		Inputs		Inputs		Fair Value
2017
Cash equivalents:
Cash (including foreign currencies)	$	726	$	-	$	-	$	726
Short term investment funds		-		4,635		-		4,635
Total cash equivalents		726		4,635		-		5,361
Equity securities:
Common stock		14,523		-		-		14,523
Depository receipts		368		-		-		368
Commingled pension trust funds		-		26,613		-		26,613
Preferred stock		320		-		-		320
Total equity securities		15,211		26,613		-		41,824
Fixed income securities:
Collateralized mortgage obligations		-		585		-		585
Commingled pension trust funds		-		19,524		-		19,524
Corporate bonds		-		3,068		-		3,068
FNMA		-		167		-		167
Government securities		-		10,117		-		10,117
Mortgage backed securities		-		61		-		61
Total fixed income securities		-		33,522		-		33,522
Other investments:
Commingled pension trust funds - Realty		-		-		2,641		2,641
Total Plan investments	$	15,937	$	64,770	$	2,641	$	83,348

		Level 1		Level 2		Level 3		Total
		Inputs		Inputs		Inputs		Fair Value
2016
Cash equivalents:
Foreign currencies	$	99	$	-	$	-	$	99
Short term investment funds		-		4,454		-		4,454
Total cash equivalents		99		4,454		-		4,553
Equity securities:
Common stock		13,326		-		-		13,326
Depository receipts		391		-		-		391
Commingled pension trust funds		-		22,302		-		22,302
Total equity securities		13,717		22,302		-		36,019
Fixed income securities:
Collateralized mortgage obligations		-		633		-		633
Commingled pension trust funds		-		18,151		-		18,151
Corporate bonds		-		2,862		-		2,862
FNMA		-		579		-		579
Government securities		-		9,783		-		9,783
Mortgage backed securities		-		35		-		35
Total fixed income securities		-		32,043		-		32,043
Other Investments:
Commingled pension trust funds - Realty		-		-		2,637		2,637
Total Plan investments	$	13,816	$	58,799	$	2,637	$	75,252

Components Of Accumulated Other Comprehensive Loss Related To Defined Benefit Plan And Postretirement Benefit Plan

		2017			2016
Defined benefit plan:
Net actuarial loss	$	(14,348	)	$	(16,966	)
Prior service credit (cost)		5			(12	)
		(14,343	)		(16,978	)
Postretirement benefit plan:
Net actuarial loss		(190	)		(198	)
Prior service credit		169			237
		(21	)		39
Total		(14,364	)		(16,939	)
Deferred tax benefit		5,723			6,717
Amounts included in accumulated other comprehensive loss	$	(8,641	)	$	(10,222	)

Changes In Plan Assets And Benefit Obligations Recognized In Other Comprehensive Income

		2017			2016
Defined benefit plan:
Net actuarial gain (loss)	$	1,475		$	(189	)
Amortization of net loss		1,142			938
Amortization of prior service cost		17			20
		2,634			769
Postretirement benefit plan:
Net actuarial loss		(15	)		(53	)
Amortization of net loss		24			17
Amortization of prior service credit		(68	)		(67	)
		(59	)		(103	)
Total recognized in other comprehensive income	$	2,575		$	666

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Tabular disclosure of benefits expected to be paid by pension plans and/or other employee benefit plans in each of the next five fiscal years and in the aggregate for the five fiscal years thereafter.

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