Cash consideration per month.

No definition available.

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

- Definition

Nonqualified stock option to purchase shares of common stock.

+ References

No definition available.

+ Details

Name:	celu_NonqualifiedStockOptionToPurchaseSharesOfCommonStock
Namespace Prefix:	celu_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	duration

- Definition

Payment for month.

+ References

No definition available.

+ Details

Name:	celu_PaymentForMonth
Namespace Prefix:	celu_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Definition

Payments to related party.

+ References

No definition available.

+ Details

Name:	celu_PaymentsToRelatedParty
Namespace Prefix:	celu_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Definition

Related Party Cash Bonus

+ References

No definition available.

+ Details

Name:	celu_RelatedPartyCashBonus
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

Name:	celu_RelatedPartyTransactionsDetailsLineItems
Namespace Prefix:	celu_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

- 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
-Topic 850
-SubTopic 10
-Section 50
-Paragraph 1
-Subparagraph (c)
-URI https://asc.fasb.org/extlink&oid=6457730&loc=d3e39549-107864

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 850
-SubTopic 10
-Section 50
-Paragraph 3
-URI https://asc.fasb.org/extlink&oid=6457730&loc=d3e39603-107864

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

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

+ References

+ Details

Name:	us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross
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://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (c)(1)(ii)
-URI https://asc.fasb.org/extlink&oid=128089324&loc=d3e5070-113901

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (c)(1)(i)
-URI https://asc.fasb.org/extlink&oid=128089324&loc=d3e5070-113901

+ Details

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

- Definition

Number of options vested.

+ References

No definition available.

+ Details

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

- Details

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Namespace Prefix:
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Balance Type:
Period Type:

- Details

Name:	us-gaap_RelatedPartyTransactionsByRelatedPartyAxis=celu_COTAIncMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_RelatedPartyTransactionsByRelatedPartyAxis=celu_CryoportSystemsIncMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_RelatedPartyTransactionsByRelatedPartyAxis=celu_SorrentoTherapeuticsIncMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_RelatedPartyTransactionAxis=celu_ScientificAndClinicalAdvisorAgreementMember
Namespace Prefix:
Data Type:	na
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Period Type:

- Details

Name:	us-gaap_RelatedPartyTransactionsByRelatedPartyAxis=celu_DrAndrewPecoraMember
Namespace Prefix:
Data Type:	na
Balance Type:
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- Details

Name:	us-gaap_BusinessAcquisitionAxis=celu_LegacyCelularitysMember
Namespace Prefix:
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Related Party Transactions - Additional Information (Details) - USD ($)			6 Months Ended
	Oct. 15, 2020	Apr. 13, 2020	Jun. 30, 2022	Jun. 30, 2021
CURA Foundation
Related Party Transactions Details [Line Items]
Contribution made			$ 0	$ 0
COTA, Inc
Related Party Transactions Details [Line Items]
Contribution made			0	149,000
Cryoport Systems, Inc
Related Party Transactions Details [Line Items]
Contribution made			35,000	32,000
Sorrento Therapeutics, Inc
Related Party Transactions Details [Line Items]
Contribution made			$ 1,821,000	0
SAB Agreement \| Dr. Andrew Pecora
Related Party Transactions Details [Line Items]
Amount paid				$ 240,000
SAB Agreement \| Legacy Celularity \| Dr. Andrew Pecora
Related Party Transactions Details [Line Items]
Payment per month		$ 20,000
Options Granted		153,718
Vested options to acquire shares		76,859
Estimated fair value		76,859
Cash consideration per month	$ 20,000
One-time cash bonus	$ 50,000
Nonqualified stock option to purchase shares of common stock	153,718