EMPLOYEE BENEFIT PLANS (Tables)

6 Months Ended

Mar. 31, 2021

Retirement Benefits [Abstract]

Summary of Defined Benefit Plans Included in Other Income

Defined benefit pension expense (income) included in Other Income (Expense), net was as follows:

	Three Months Ended March 31,				Six Months Ended March 31,
	2021		2020		2021		2020
Interest cost	$	745	$	1,151	$	1,489	$	2,302
Expected return on plan assets	(2,545)		(2,586)		(5,089)		(5,172)
Amortization:
Prior service cost	—		4		—		8
Recognized actuarial loss	1,573		1,042		3,146		2,084
Net periodic expense (income)	$	(227)	$	(389)	$	(454)	$	(778)