Inventories (Schedule of Inventories) (Details) - USD ($) $ in Thousands		Sep. 30, 2024	Sep. 30, 2023
Inventory, Net [Abstract]
Raw materials		$ 161,734	$ 133,699
Work in progress		147,676	127,438
Component parts	[1]	376,456	327,522
Finished goods		91,787	74,594
Customer supplied inventory		20,563	14,543
On-hand inventory for which control has transferred to the customer		(189,124)	(159,953)
Inventory, net		$ 609,092	$ 517,843

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