Leases - Additional Information (Details) $ in Thousands			3 Months Ended		9 Months Ended
	Sep. 14, 2023 USD ($)	Mar. 13, 2019 USD ($) ft²	Sep. 30, 2023 USD ($)	Sep. 30, 2022 USD ($)	Sep. 30, 2023 USD ($) ft²	Sep. 30, 2022 USD ($)	Dec. 31, 2022 USD ($)
Leases [Line Items]
Area of building | ft²					147,215
Restricted cash			$ 14,825		$ 14,825		$ 14,836
Right-of-use-assets			11,039		11,039		13,060
Lease liability			$ 26,074		$ 26,074
Weighted average remaining lease term			22 years 6 months		22 years 6 months
Weighted average discount rate			14.24%		14.24%
Rent expense			$ 892	$ 957	$ 2,687	$ 2,880
Florham Park, New Jersey
Leases [Line Items]
Reduction in line of credit	$ 4,900
New line of credit	9,883
Base rental payment	400
Right-of-use-assets	2,083
Lease liability	$ 2,083
Office, Manufacturing and Laboratory Space | Florham Park, New Jersey | Legacy Celularity
Leases [Line Items]
Area of building | ft²		147,215
Operating lease expiry year		2036
Option to renew lease for two additional term period		5 years
Operating lease commencement date		Mar. 01, 2020
Restricted cash			$ 14,722		$ 14,722		$ 14,722
Tenant improvement allowance		$ 14,722