v3.20.2
Segment and Geographic Information - Summary of Financial Information for Each Reportable Segment (Detail) - USD ($)
$ in Thousands
 3 Months Ended 9 Months Ended
Sep. 30, 2020
Sep. 30, 2019
Sep. 30, 2020
Sep. 30, 2019
Segment Reporting Information [Line Items]        
Revenues $ 289,366 $ 190,541 $ 770,582 $ 513,197
Loss from operations (847,777) (144,140) (1,017,107) (428,993)
Operating Segments [Member]        
Segment Reporting Information [Line Items]        
Revenues 289,366 190,541 770,582 513,197
Loss from operations 163,458 28,883 395,094 82,233
Government [Member] | Operating Segments [Member]        
Segment Reporting Information [Line Items]        
Revenues 162,561 96,801 420,257 242,843
Loss from operations 93,962 23,934 226,186 46,614
Commercial [Member] | Operating Segments [Member]        
Segment Reporting Information [Line Items]        
Revenues 126,805 93,740 350,325 270,354
Loss from operations $ 69,496 $ 4,949 $ 168,908 $ 35,619