Pension Plans (Tables)

6 Months Ended

Mar. 31, 2021

Pension Plans

Components of net periodic pension cost (benefit)

The components of net periodic pension cost (benefit) are as follows (in thousands):

	Three Months Ended				Six Months Ended
	March 31,				March 31,
	2021		2020		2021		2020
Service cost	$	162	$	164	$	320	$	329
Interest cost		1,346		1,507		2,679		3,038
Expected return on plan assets		(2,686)		(2,946)		(5,335)		(5,892)
Amortization of actuarial loss		1,165		968		2,305		1,969
Administrative expenses		89		83		178		169
Net pension cost (benefit)	$	76	$	(224)	$	147	$	(387)