Pension and Other Postretirement Benefits (Tables)

6 Months Ended

Sep. 30, 2019

The following summarizes the components of net periodic benefit cost:


	Pension Benefits
	Three Months Ended September 30,						Six Months Ended September 30,
	2019		2018		2019		2018
Operating expenses:
Service cost	$	117	$	120	$	235	$	240
Interest expense:
Interest expense	1,029		1,155		2,059		2,309
Expected return on plan assets	(1,121)		(1,286)		(2,242)		(2,572)
Amortization of prior service cost	10		11		21		21
Settlement loss⁽¹⁾	548		518		548		518
Actuarial loss	456		422		912		845
Net periodic pension cost	$	1,039	$	940	$	1,533	$	1,361
(1) During the three and six months ended September 30, 2019 and 2018, the Company's cash payments activity triggered settlement accounting. Settlement losses are recorded in interest expense.


	Other Postretirement Benefits
	Three Months Ended September 30,						Six Months Ended September 30,
	2019		2018		2019		2018
Operating expenses:
Service cost	$	2	$	4	$	3	$	7
Interest expense:
Interest expense	82		83		164		166
Amortization of prior service cost	(177)		(177)		(354)		(355)
Actuarial loss	109		109		219		219
Net periodic pension cost	$	16	$	19	$	32	$	37

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


	Three Months Ended September 30,						Six Months Ended September 30,
	2019		2018		2019		2018
Contributions made during the period	$	1,615	$	1,902	$	3,180	$	3,491
Contributions expected for the remainder of the fiscal year					3,942		3,756
Total					$	7,122	$	7,247