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Long-Term Trade And Unbilled Receivables (Tables)
12 Months Ended
Dec. 31, 2020
Billed and Unbilled Contract Claims Subject to Uncertainty [Abstract]  
Schedule Of Long-Term Trade And Unbilled Receivables
The following table presents the components of long-term trade and unbilled receivables and contract assets as of December 31, 2020 and 2019.
 December 31,
 20202019
Trade and unbilled receivables$178,484 $128,481 
Contract assets (*)
133,613 130,669 
 $312,097 $259,150