Inventories (Schedule of Inventories) (Details) - USD ($) $ in Thousands		Sep. 30, 2022	Sep. 30, 2021
Inventory Net [Abstract]
Raw materials		$ 126,264	$ 107,412
Work in progress		123,005	95,846
Component parts	[1]	329,962	260,244
Finished goods		70,019	63,109
Customer supplied inventory		12,442	14,169
On-hand inventory for which control has transferred to the customer		(147,405)	(120,809)
Inventory, net		$ 514,287	$ 419,971

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