Annual report pursuant to Section 13 and 15(d)

Revenue Recognition - Schedule of Disaggregation of Revenue (Details)

v3.20.1
Revenue Recognition - Schedule of Disaggregation of Revenue (Details)
$ in Thousands
12 Months Ended
Dec. 31, 2018
USD ($)
Total $ 384,755
Infrastructure [Member]  
Total 383,778
Technology [Member]  
Total $ 977