Business Combinations - Additional Information (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended		9 Months Ended		12 Months Ended
	Sep. 30, 2023	Sep. 30, 2022	Sep. 30, 2023	Sep. 30, 2022	Dec. 31, 2022	Jul. 31, 2023	Apr. 10, 2023	Mar. 01, 2022
Business Combinations and Disposals [Line Items]
Common stock, par value (in Dollars per share)	$ 0.0001		$ 0.0001		$ 0.0001
Goodwill	$ 7,347		$ 7,347		$ 119,694
Liabilities	126,945		126,945		202,165
Fair value of warrants			3,735		$ 3,598
Expense reduction in fair value of warrants	$ (5,187)	$ (9,333)	$ (6,788)	$ (31,613)
Common stock, shares issued	193,659,133		193,659,133		148,921,187
Common stock, shares outstanding	193,659,133		193,659,133		148,921,187
Warrants outstanding to purchase shares of common stock						8,928,572
Aggregate purchase price			$ 12,750	$ 30,000
Legacy Celularity
Business Combinations and Disposals [Line Items]
Warrants outstanding to purchase shares of common stock								13,281,386
Class A Common Stock
Business Combinations and Disposals [Line Items]
Common stock, par value (in Dollars per share)	$ 0.0001		$ 0.0001		$ 0.0001
Warrants outstanding to purchase shares of common stock						8,571,429	9,230,770