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Inventories (Schedule of Inventories) (Details) - USD ($) $ in Thousands		Sep. 30, 2020	Sep. 30, 2019
Inventory Net [Abstract]
Raw materials		$ 123,626	$ 134,878
Work in progress		92,934	133,885
Component parts	[1]	255,980	287,128
Finished goods		66,889	59,051
Customer supplied inventory		14,955	13,396
On-hand inventory for which control has transferred to the customer		116,441	111,502
Inventory, net		$ 437,943	$ 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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- Definition

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 reserves and adjustments, as of the balance sheet date of merchandise or goods which are partially completed. This inventory is generally comprised of raw materials, labor and factory overhead costs, which require further materials, labor and overhead to be converted into finished goods, and which generally require the use of estimates to determine percentage complete and pricing.

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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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