Supplementary Balance Sheet Information (Tables)

3 Months Ended

Dec. 31, 2023

Organization, Consolidation and Presentation of Financial Statements [Abstract]

Summary of inventories

	December 31,		September 30,
	2023		2023
Raw materials and purchased parts	$	57,984	$	59,861
Work-in-process		12,460		11,400
Finished goods		56,740		56,937
Total inventories	$	127,184	$	128,198

Summary of product warranty and retrofit activity

	Three Months Ended December 31,
	2023		2022
Balance at beginning of period	$	10,223	$	2,890
Adjustment for acquisitions		—		2,303
Accruals for warranties during the period		692		307
Costs incurred during the period		(868)		(321)
Balance at end of period	$	10,047	$	5,179