GOODWILL (Detail) $ in Thousands	3 Months Ended
Mar. 31, 2021 USD ($)
Goodwill [Roll Forward]
December 31, 2020	$ 1,455,137
Goodwill, Other Increase (Decrease)	11,228
Foreign currency translation adjustment	(1,141)
March 31, 2021	1,465,224
Aerospace & Industrial
Goodwill [Roll Forward]
December 31, 2020	316,921
Foreign currency translation adjustment	432
March 31, 2021	317,353
Defense Electronics
Goodwill [Roll Forward]
December 31, 2020	703,915
Goodwill, Other Increase (Decrease)	11,228
Foreign currency translation adjustment	(1,320)
March 31, 2021	713,823
Naval & Power
Goodwill [Roll Forward]
December 31, 2020	434,301
Foreign currency translation adjustment	(253)
March 31, 2021	$ 434,048

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
-Publisher FASB
-Name Accounting Standards Codification
-Topic 942
-SubTopic 210
-Section S99
-Paragraph 1
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-Publisher FASB
-Name Accounting Standards Codification
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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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