INVENTORIES (Detail) - USD ($) $ in Thousands	Dec. 31, 2019	Dec. 31, 2018
Inventory, Net [Abstract]
Raw material	$ 183,576	$ 214,442
Work-in-process	105,874	74,536
Finished goods and component parts	131,124	143,016
Inventory costs related to U.S. Government and other long-term contracts	70,998	54,195
Gross inventories	491,572	486,189
Less: Inventory reserves	(58,594)	(55,776)
Progress payments applied, principally related to long-term contracts	(8,143)	(6,987)
Inventories, net	$ 424,835	$ 423,426

Amount before valuation and LIFO reserves of completed merchandise or goods expected to be sold within one year or operating cycle, if longer.

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Amount before valuation and LIFO reserves, and progress payments, of inventory associated with long-term contracts, expected to be sold, or consumed within one year or operating cycle, if longer.

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Gross amount, as of the balance sheet date, of merchandise, goods, commodities, or supplies held for future sale or to be used in manufacturing, servicing or production process.

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

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Amount before valuation and LIFO reserves of merchandise or goods in the production process expected to be completed within one year or operating cycle, if longer.

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Amount of advances received from customers under long-term contracts which have been offset against inventories accounts at the balance sheet date.

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