GOODWILL (Detail) $ in Thousands	6 Months Ended
Jun. 30, 2021 USD ($)
Goodwill [Roll Forward]
December 31, 2020	$ 1,455,137
Goodwill, Other Increase (Decrease)	9,845
Foreign currency translation adjustment	1,753
June 30, 2021	1,466,735
Aerospace & Industrial [Member]
Goodwill [Roll Forward]
December 31, 2020	316,921
Foreign currency translation adjustment	650
June 30, 2021	317,571
Defense Electronics [Member]
Goodwill [Roll Forward]
December 31, 2020	703,915
Goodwill, Other Increase (Decrease)	9,845
Foreign currency translation adjustment	250
June 30, 2021	714,010
Naval & Power [Member]
Goodwill [Roll Forward]
December 31, 2020	434,301
Foreign currency translation adjustment	853
June 30, 2021	$ 435,154

Amount after accumulated impairment loss of an asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized.

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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Reference 3: http://www.xbrl.org/2003/role/exampleRef
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Amount of foreign currency translation gain (loss) which increases (decreases) an asset representing future economic benefits from other assets acquired in a business combination that are not individually identified and separately recognized.

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Amount of increase (decrease), classified as other, of an asset representing the future economic benefits from other assets acquired in a business combination that are not individually identified and separately recognized.

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A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period.

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