Retirement Plans (tables)

12 Months Ended

Mar. 31, 2016

General Discussion Of Pension And Other Postretirement Benefits [Abstract]

Schedule of Changes in Projected Benefit Obligations [Table Text Block]

		2016		2015
		(In thousands)
Change in Benefit Obligation
Benefit obligation at beginning of year	$	212,908	$	170,478
Service cost		10,502		8,515
Interest cost		8,902		8,236
Plan amendments		-		952
Actuarial (gain) loss		(11,340)		30,556
Benefit payments and expenses		(6,936)		(5,829)
Benefit obligation at end of year	$	214,036	$	212,908
Change in Plan Assets
Fair value of plan assets at beginning of year	$	157,948	$	154,650
Actual gain on plan assets		2,126		8,777
Employer contributions		23,100		350
Benefit payments and expenses		(6,936)		(5,829)
Fair value of plan assets at end of year	$	176,238	$	157,948
Unfunded Status	$	(37,798)	$	(54,960)

Schedule of Amounts in Accumulated Other Comprehensive Income (Loss) to be Recognized over Next Fiscal Year [Table Text Block]

		2016		2015
		(In thousands)
Amounts Recognized in Accumulated Other
Comprehensive Pre-Tax Loss
Prior service cost	$	(843)	$	(952)
Net loss		(45,248)		(50,883)
Accumulated other comprehensive pre-tax loss	$	(46,091)	$	(51,835)

Schedule of Amounts Recognized In Other Comprehensive Income Loss [Table Text Block]

		Pension and
		post retirement plan
		adjustments, net
		of tax
		(In thousands)
Accumulated Other Comprehensive Loss
Balance at March 31, 2015	$	(31,804)
Other comprehensive loss before reclassifications		3,408
Reclassified from accumulated other comprehensive loss		-
Net current period other comprehensive loss		3,408
Balance at March 31, 2016	$	(28,396)

Schedule of Costs of Retirement Plans [Table Text Block]

The following table provides the components of net periodic benefit cost for the Plan for fiscal years 2016, 2015, and 2014:
		2016		2015		2014
		(In thousands)
Service cost	$	10,502	$	8,515	$	7,752
Interest cost		8,902		8,236		7,592
Expected return on plan assets		(11,685)		(11,360)		(9,938)
Amortization of net loss		3,854		350		2,434
Prior service cost		109		-		-
Net periodic benefit cost	$	11,682	$	5,741	$	7,840

Schedule of Assumptions Used [Table Text Block]

	2016		2015
Discount rate - projected benefit obligation	4.36	%	4.15	%
Discount rate - pension expense	4.15	%	4.85	%
Expected return on plan assets	7.25	%	7.25	%
Rate of compensation increase	3.00	%	3.00	%

Schedule of Allocation of Plan Assets [Table Text Block]

The Company's plan assets consist of the following:
	Target		Percentage of Plan
	Allocation		Assets at March 31,
	2017		2016		2015
Plan Assets
Equity securities	99	%	99	%	97	%
Debt securities	-		-		-
Real estate	-		-		-
Cash	1		1		3
Total	100	%	100	%	100	%

Schedule Of Derivative Assets At Fair Value [Table Text Block]

		2016		2015
		Market Value		Market Value
		(In thousands)
Assets by Industry Type
Asset Category
Cash and cash equivalents:
Money market funds	$	1,497	$	5,545
Total cash and cash equivalents		1,497		5,545
Common equity securities:
Materials		9,379		5,460
Industrials		30,355		33,813
Telecommunication services		9,325		11,393
Consumer staples		33,048		23,410
Energy		14,658		15,062
Financials		34,891		32,808
Health Care		10,538		7,503
Information technology		9,681		5,608
Utilities		22,866		17,346
Total common equity securities		174,741		152,403
Total assets	$	176,238	$	157,948

Schedule of Expected Benefit Payments [Table Text Block]

Estimated future benefit payments reflecting expected future
service for the fiscal years ending March 31 (in thousands):
2017	$	6,799
2018		7,394
2019		7,964
2020		8,577
2021		9,324
2022-2024		57,417