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ACQUISITIONS (Narrative) (Detail)
$ in Thousands
12 Months Ended
Dec. 31, 2019
Mar. 15, 2019
Apr. 02, 2018
Dec. 31, 2019
USD ($)
NumberAcquisitions
Dec. 31, 2018
USD ($)
NumberAcquisitions
Dec. 31, 2017
USD ($)
Business Acquisition [Line Items]            
Number of Businesses Acquired | NumberAcquisitions       2 1  
Business Combination, Pro Forma Information, Revenue of Acquiree since Acquisition Date, Actual       $ 11,000 $ 64,000  
Business Combination, Pro Forma Information, Earnings or Loss of Acquiree since Acquisition Date, Actual       0 1,000  
Payments to Acquire Businesses, Gross       185,209 210,167 $ 232,630
901D Holdings, LLC (901D) [Member] | Defense            
Business Acquisition [Line Items]            
Effective date of acquisition Dec. 31, 2019          
Payments to Acquire Businesses, Net of Cash Acquired       135,100    
Tactical Communications Group (TCG) [Member] | Defense            
Business Acquisition [Line Items]            
Effective date of acquisition   Mar. 15, 2019        
Payments to Acquire Businesses, Net of Cash Acquired       $ 50,100    
Dresser-Rand Government Business (DRG) [Member] | Power            
Business Acquisition [Line Items]            
Effective date of acquisition     Apr. 02, 2018      
Payments to Acquire Businesses, Gross         $ 210,200