GOODWILL (Detail) $ in Thousands	9 Months Ended
Sep. 30, 2018 USD ($)
Goodwill [Roll Forward]
December 31, 2017	$ 1,096,329
Goodwill, Acquired During Period	11,690
Goodwill, Period Increase (Decrease)	1,705
Foreign currency translation adjustment	(9,046)
September 30, 2018	1,097,268
Commercial Industrial [Member]
Goodwill [Roll Forward]
December 31, 2017	448,531
Goodwill, Period Increase (Decrease)	(111)
Foreign currency translation adjustment	(4,037)
September 30, 2018	444,383
Defense [Member]
Goodwill [Roll Forward]
December 31, 2017	460,332
Goodwill, Period Increase (Decrease)	1,594
Foreign currency translation adjustment	(4,926)
September 30, 2018	453,812
Power [Member]
Goodwill [Roll Forward]
December 31, 2017	187,466
Goodwill, Acquired During Period	11,690
Foreign currency translation adjustment	(83)
September 30, 2018	$ 199,073

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://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 350
-SubTopic 20
-Section 45
-Paragraph 5
-URI http://asc.fasb.org/extlink&oid=77989000&loc=SL49117168-202975

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
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Amount of increase in asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized resulting from a business combination.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
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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.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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Amount of increase (decrease) of an asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized.

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Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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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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No definition available.

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