Pension and Other Postretirement Benefits (Tables)

3 Months Ended

Jun. 30, 2020

Retirement Benefits [Abstract]

Schedule of Net Periodic Benefit Cost

The following summarizes the components of net periodic benefit cost:

	Defined Benefit Plans
	Three Months Ended June 30,
	2020		2019
Operating expenses:
Service cost	$	106	$	117
Interest expense:
Interest expense	957		1,029
Expected return on plan assets	(740)		(1,121)
Amortization of prior service cost	10		10
Actuarial loss	521		456
Net periodic pension cost	$	854	$	491

	Other Postretirement Benefits
	Three Months Ended June 30,
	2020		2019
Operating expenses:
Service cost	$	2	$	2
Interest expense:
Interest expense	69		82
Amortization of prior service cost	(176)		(177)
Actuarial loss	94		109
Net periodic pension cost	$	(11)	$	16

Schedule of Contributions to Pensions Plans and Postretirement Health and Life Insurance Benefits

The following summarizes contributions to pension plans and postretirement health and life insurance benefits:

	Three Months Ended June 30,
	2020		2019
Contributions made during the period	$	875	$	1,565
Contributions expected for the remainder of the fiscal year	6,306		5,557
Total	$	7,181	$	7,122