Inventories (Schedule of Inventories) (Details) - USD ($) $ in Thousands		Dec. 31, 2022	Sep. 30, 2022
Inventory Net [Abstract]
Raw materials		$ 148,862	$ 126,264
Work in progress		126,281	123,005
Component parts	[1]	355,712	329,962
Finished goods		87,400	70,019
Customer supplied inventory		13,210	12,442
On-hand inventory for which control has transferred to the customer		(157,631)	(147,405)
Inventory, net		$ 573,834	$ 514,287

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