EMPLOYEE BENEFIT PLANS (Tables)

9 Months Ended

Dec. 31, 2015

Compensation And Retirement Disclosure [Abstract]

Schedule of Carrying Value of Trust Assets, Including Unrealized Gains or Losses

The following table summarizes the carrying value of the trust assets, including unrealized gains or losses at December 31, 2015 and March 31, 2015:

	December 31,		March 31,
(In thousands)	2015		2015
Investments held in Rabbi Trust	$	9,072		9,915
Unrealized gains (losses) in fair value of trust assets		233		235
Obligations under the supplemental plan		27,143		25,510

Schedule of Net Periodic Benefit Cost

The net periodic benefit cost for the company’s U.S. defined benefit pension plan and supplemental plan (referred to collectively as “Pension Benefits”) and the postretirement health care and life insurance plan (referred to collectively as “Other Benefits”) is comprised of the following components:

	Quarter Ended						Nine Months Ended
	December 31,						December 31,
(In thousands)	2015			2014			2015			2014
Pension Benefits:
Service cost	$	234			206			702			618
Interest cost		935			968			2,805			2,904
Expected return on plan assets		(530	)		(685	)		(1,590	)		(2,055	)
Amortization of prior service cost		9			12			27			36
Recognized actuarial loss		567			247			1,701			741
Net periodic benefit cost	$	1,215			748			3,645			2,244
Other Benefits:
Service cost	$	41			68			191			204
Interest cost		103			226			524			678
Amortization of prior service cost		(899	)		(508	)		(1,920	)		(1,524	)
Recognized actuarial benefit		(281	)		(325	)		(770	)		(975	)
Net periodic benefit cost	$	(1,036	)		(539	)		(1,975	)		(1,617	)