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Leases - Narrative (Details) | 1 Months Ended | 3 Months Ended | 12 Months Ended
--- | --- | --- | ---
Sep. 30, 2021 USD ($) | Sep. 30, 2023 USD ($) | Dec. 31, 2022 USD ($) | Dec. 31, 2023 USD ($) realEstateLease renewalPeriod financeLease
Lessee, Lease, Description [Line Items] |  |  |  |
Number of finance leases | financeLease |  |  |  | 4
Number of real estate leases | realEstateLease |  |  |  | 8
Property and equipment, gross |  |  | $ 24,098,000 | $ 21,226,000
Lessee, ground lease, number of optional renewal periods | renewalPeriod |  |  |  | 4
Operating lease right-of-use assets |  |  | 4,829,000 | $ 35,853,000
Present value of lease liabilities |  |  |  | 32,910,000
Reimbursable construction costs from the lessor |  | $ 5,600,000 |  | $ 677,000
Lunar Operations Center |  |  |  |
Lessee, Lease, Description [Line Items] |  |  |  |
Amount of lease costs able to be reimbursed | $ 40,000,000 |  |  |
Long-term debt |  |  | 9,100,000 |
Lessee, ground lease, term of contract (in years) |  |  |  | 20 years
Lessee, ground lease, term of renewal period (in years) |  |  |  | 5 years
Sale and leaseback transaction, gain (loss), net |  | 0 |  |
Operating lease right-of-use assets |  | 32,300,000 |  |
Extinguishment of debt, amount |  | 30,400,000 |  |
Present value of lease liabilities |  | 26,700,000 |  |
Construction in progress |  |  |  |
Lessee, Lease, Description [Line Items] |  |  |  |
Property and equipment, gross |  |  | 17,747,000 | $ 13,795,000
Construction in progress | Lunar Operations Center |  |  |  |
Lessee, Lease, Description [Line Items] |  |  |  |
Property and equipment, gross |  |  | 10,300,000 |
Property, plant and equipment, derecognized |  | (30,400,000) |  |
Construction Costs for Lunar Operations Center | Lunar Operations Center |  |  |  |
Lessee, Lease, Description [Line Items] |  |  |  |
Property and equipment, gross |  | 3,800,000 |  |
Operating lease right-of-use assets |  | 3,100,000 |  |
Operating lease, liability, reduction |  | $ 700,000 |  |
Small Engine Verification Facility "SEV Facility" | Lunar Operations Center |  |  |  |
Lessee, Lease, Description [Line Items] |  |  |  |
Sale and leaseback transaction, gain (loss), net |  |  | 0 |
Operating lease right-of-use assets |  |  | 3,100,000 | 2,900,000
Present value of lease liabilities |  |  | $ 3,100,000 | $ 3,200,000
Minimum |  |  |  |
Lessee, Lease, Description [Line Items] |  |  |  |
Operating lease term (in months) |  |  |  | 6 months
Finance lease term (in months) |  |  |  | 36 months
Maximum |  |  |  |
Lessee, Lease, Description [Line Items] |  |  |  |
Operating lease term (in months) |  |  |  | 250 months
Finance lease term (in months) |  |  |  | 60 months

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