Receivables (Tables)
 9 Months Ended
Oct. 02, 2020
Receivables [Abstract]  
Schedule of Receivables Receivables were comprised of the following:
(In thousands)October 2, 2020December 31, 2019
Billed receivables$59,445 $71,068 
Unbilled receivables (contract assets)199,301 186,365 
Other 9,397 11,711 
Total receivables$268,143 $269,144