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RECEIVABLES (Detail) - USD ($)
$ in Thousands
Sep. 30, 2023
Dec. 31, 2022
Billed receivables:    
Trade and other receivables $ 465,138 $ 412,682
Unbilled receivables:    
Recoverable costs and estimated earnings not billed 329,439 315,383
Less: Progress payments applied (10) (67)
Net unbilled receivables 329,429 315,316
Less: Allowance for doubtful accounts (4,233) (4,694)
Receivables, net $ 790,334 $ 723,304