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RECEIVABLES (Detail) (USD $)
In Thousands, unless otherwise specified
Mar. 31, 2014
Dec. 31, 2013
Billed receivables:    
Trade and other receivables $ 453,190 $ 444,841
Less: Allowance for doubtful accounts (6,390) (6,857)
Net billed receivables 446,800 437,984
Unbilled receivables:    
Recoverable costs and estimated earnings not billed 187,801 184,120
Less: Progress payments applied (16,183) (18,512)
Net unbilled receivables 171,618 165,608
Receivables, net $ 618,418 $ 603,592