Summary of Significant Accounting Policies - Narrative (Details) $ / shares in Units, $ in Thousands		12 Months Ended
	May 21, 2021 agreement	Dec. 31, 2021 USD ($) segment $ / shares	Dec. 31, 2020 USD ($) $ / shares	Jan. 01, 2020 USD ($)
Cash and Cash Equivalents [Line Items]
Common stock, par value (in dollars per share) | $ / shares		$ 0.00001	$ 0.00001
Restricted cash, current		$ 197	$ 100
Restricted cash, non-current		314	415
Deferred fulfillment and prepaid launch costs		3,000	4,700
Number of launch agreements terminated | agreement	2
Impairment of prepaid launch costs		8,700	1,500
Unrelated impairment		800	200
Revenue recognized previously recorded as contract liability		1,600	2,600
Revenue recognized for cancelled contracts previously recorded as contract liability		300
Reduction in cost of revenue		(135)	368
Refund liability, current		$ 1,400
Number of operating segments | segment		1
Number of reportable segments | segment		1
Operating right-of-use assets		$ 7,604	316	$ 550
Operating lease liabilities		$ 8,473	$ 326	$ 560
Patents
Cash and Cash Equivalents [Line Items]
Intangible asset amortization period		10 years
Cloud Computing Implementation Costs
Cash and Cash Equivalents [Line Items]
Intangible asset amortization period		3 years
Cash Designated for Collateral
Cash and Cash Equivalents [Line Items]
Restricted cash		$ 400
Restricted cash, current		100
Restricted cash, non-current		300
Cash Designated for Expenditures under National Security Agreement
Cash and Cash Equivalents [Line Items]
Restricted cash		$ 100