Segments - Summary of Information by Reportable Segment (Detail) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2022	Sep. 30, 2021	Sep. 30, 2022	Sep. 30, 2021
Sales Information [Line Items]
Cost of revenues	$ 54,590	$ 17,738	$ 142,074	$ 43,337
Gross profit (loss)	8,467	(12,451)	17,160	(8,578)
Launch Services [Member]
Sales Information [Line Items]
Revenues	22,983	1,123	48,668	25,202
Cost of revenues	23,818	16,521	52,583	40,216
Gross profit (loss)	(835)	(15,398)	(3,915)	(15,014)
Space Systems [Member]
Sales Information [Line Items]
Revenues	40,074	4,164	110,566	9,557
Cost of revenues	30,772	1,217	89,491	3,121
Gross profit (loss)	$ 9,302	$ 2,947	$ 21,075	$ 6,436