Inventories (Tables)

6 Months Ended

Mar. 31, 2021

Inventory Net [Abstract]

Schedule of Inventories

	March 31,			September 30,
	2021			2020
Raw materials	$	122,056		$	123,626
Work in progress		92,124			92,934
Component parts(1)		254,042			255,980
Finished goods		70,321			66,889
Customer supplied inventory		15,790			14,955
On-hand inventory for which control has transferred to the customer		(132,012	)		(116,441	)
	$	422,321		$	437,943

(1) Component parts include items that can be sold separately as finished goods or included in the manufacture of other products.