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Inventories (Schedule of Inventories) (Details) - USD ($) $ in Thousands		Mar. 31, 2020	Sep. 30, 2019
Inventories
Raw materials		$ 143,165	$ 134,878
Work in progress		131,479	133,885
Component parts	[1]	303,149	287,128
Finished goods		81,765	59,051
Customer supplied inventory		13,884	13,396
On-hand inventory for which control has transferred to the customer		(142,536)	(111,502)
Inventory, net		$ 530,906	$ 516,836
[1] Component parts include items that can be sold separately as finished goods or included in the manufacture of other products.

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Carrying amount, net of valuation reserves and adjustments, as of the balance sheet date of merchandise or goods held by the company that are readily available for sale.

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Amount after valuation and LIFO reserves of inventory expected to be sold, or consumed within one year or operating cycle, if longer.

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Carrying amount, net of valuation reserves and adjustments, as of the balance sheet date of unprocessed items to be consumed in the manufacturing or production process.

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Carrying amount, net of valuation reserves and adjustments, as of the balance sheet date of component parts, which includes items that can be sold separately as finished goods or included in the manufacture of other products.

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On hand inventory held by the Company for which control of the inventory has passed to the customer.

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