Cash consideration per month.

No definition available.

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- Definition

Loan agreement.

+ References

No definition available.

+ Details

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Data Type:	xbrli:monetaryItemType
Balance Type:	credit
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- Definition

Nonqualified stock option to purchase shares of common stock.

+ References

No definition available.

+ Details

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- Definition

Number of shares holding.

+ References

No definition available.

+ Details

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- Definition

Payment for month.

+ References

No definition available.

+ Details

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Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Definition

Payment subscription period.

+ References

No definition available.

+ Details

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Data Type:	xbrli:durationItemType
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- Definition

Payments to related party.

+ References

No definition available.

+ Details

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Data Type:	xbrli:monetaryItemType
Balance Type:	credit
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- Definition

Related Party Cash Bonus

+ References

No definition available.

+ Details

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Namespace Prefix:	celu_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

Related Party Transactions (Details) [Line Items]

+ References

No definition available.

+ Details

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Data Type:	xbrli:stringItemType
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- Definition

Stock options vested.

+ References

No definition available.

+ Details

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Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	duration

- Definition

Number of securities into which the class of warrant or right may be converted. For example, but not limited to, 500,000 warrants may be converted into 1,000,000 shares.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 505
-SubTopic 10
-Section 50
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-URI http://asc.fasb.org/extlink&oid=123467817&loc=d3e21475-112644

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Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	instant

- Definition

Amount of transactions with related party during the financial reporting period.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
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Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

Gross number of share options (or share units) granted during the period.

+ References

No definition available.

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	duration

- Definition

Number of options outstanding, including both vested and non-vested options.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
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Related Party Transactions - Additional Information (Details) - USD ($) $ in Thousands				9 Months Ended
	May 05, 2021	Oct. 15, 2020	Apr. 13, 2020	Sep. 30, 2021	Sep. 30, 2020	Jun. 08, 2021
CURA Foundation
Related Party Transactions Details [Line Items]
Contribution made				$ 500	$ 375
COTA, Inc
Related Party Transactions Details [Line Items]
Contribution made				$ 149
Cryoport Systems, Inc
Related Party Transactions Details [Line Items]
Contribution made					139
Legacy Celularity \| CV Star Loan
Related Party Transactions Details [Line Items]
Loan agreement						$ 5,000
Legacy Celularity \| CV Star Loan \| Class A Common Stock
Related Party Transactions Details [Line Items]
Warrants to purchase Class A common stock				3,320,346
Number of shares holding				4,320,347
Legacy Celularity \| Palantir Technologies, Inc \| Master Subscription Agreement
Related Party Transactions Details [Line Items]
Contribution made	$ 40,000			$ 6,000
Payment subscription period	5 years
Legacy Celularity \| Palantir Technologies, Inc \| Class A Common Stock \| Master Subscription Agreement
Related Party Transactions Details [Line Items]
Number of shares holding	2,000,000
Consulting Agreement with Dr. Andrew Pecora
Related Party Transactions Details [Line Items]
Amount paid				$ 370	$ 340
Consulting Agreement with Dr. Andrew Pecora \| Legacy Celularity
Related Party Transactions Details [Line Items]
Payment for month			$ 20
Stock options issued to purchase shares of common stock			153,718
Options vested			76,859
Options outstanding			76,859
Cash consideration per month		$ 20
Cash bonus		$ 50
Nonqualified stock option to purchase shares of common stock		153,718