Segments - Summary of Information by Reportable Segment (Detail) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021
Sales Information [Line Items]
Cost of revenues	$ 50,516	$ 8,817	$ 87,484	$ 25,598
Gross profit (loss)	4,958	2,463	8,693	3,874
Launch Services [Member]
Sales Information [Line Items]
Revenues	19,109	7,618	25,685	24,080
Cost of revenues	21,421	7,829	28,765	23,695
Gross profit (loss)	(2,312)	(211)	(3,080)	385
Space Systems [Member]
Sales Information [Line Items]
Revenues	36,365	3,662	70,492	5,392
Cost of revenues	29,095	988	58,719	1,903
Gross profit (loss)	$ 7,270	$ 2,674	$ 11,773	$ 3,489