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            <identifier scheme="http://www.sec.gov/CIK">0001752828</identifier>
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    <dei:AmendmentFlag contextRef="From2025-01-01to2025-12-31" id="Fact000003">false</dei:AmendmentFlag>
    <dei:EntityCentralIndexKey contextRef="From2025-01-01to2025-12-31" id="Fact000004">0001752828</dei:EntityCentralIndexKey>
    <dei:DocumentType contextRef="From2025-01-01to2025-12-31" id="xdx2ixbrl0010">PRE 14A</dei:DocumentType>
    <dei:EntityRegistrantName contextRef="From2025-01-01to2025-12-31" id="Fact000011">CELULARITY INC.</dei:EntityRegistrantName>
    <ecd:InsiderTrdPoliciesProcNotAdoptedTextBlock contextRef="From2025-01-01to2025-12-31" id="Fact000012">Our insider trading policy expressly prohibits short sales and derivative transactions of
our stock by our executive officers, directors, employees and certain designated consultants and contractors, including short sales of
our securities. &lt;span class="xdx_phnt_RGlzY2xvc3VyZSAtIEluc2lkZXIgVHJhZGluZyBQb2xpY2llcyBhbmQgUHJvY2VkdXJlcwA_" id="xdx_900_eecd--InsiderTrdPoliciesProcAdoptedFlag_dbF_c20250101__20251231_zCmKfWubWdBh"&gt;Our insider trading policy&lt;/span&gt; expressly prohibits, without the advance approval of our audit committee, purchases or sales
of puts, calls, or other derivative securities of the company or any derivative securities that provide the economic equivalent of ownership.</ecd:InsiderTrdPoliciesProcNotAdoptedTextBlock>
    <ecd:InsiderTrdPoliciesProcAdoptedFlag contextRef="From2025-01-01to2025-12-31" id="Fact000013">false</ecd:InsiderTrdPoliciesProcAdoptedFlag>
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      id="Fact000014">Our
board of directors adopted a compensation recovery policy (the &#x201c;&lt;b&gt;&lt;i&gt;Clawback Policy&lt;/i&gt;&lt;/b&gt;&#x201d;), designed to comply with
Rule 10D-1 of the Exchange Act and Nasdaq Listing Rule 5608, which provides for recoupment of incentive compensation in the event of
an accounting restatement resulting from material noncompliance with financial reporting requirements under the relevant securities laws.
The policy applies to our current and former executive officers. Erroneously Awarded Compensation (as defined in the Clawback Policy)
that is granted, earned or vested may be subject to recoupment.</ecd:ErrCompAnalysisTextBlock>
    <ecd:AwardTmgMnpiDiscTextBlock contextRef="From2025-01-01to2025-12-31" id="Fact000016">The
Compensation Committee last granted a stock option in February 2024. &lt;span class="xdx_phnt_RGlzY2xvc3VyZSAtIEF3YXJkIFRpbWluZyBEaXNjbG9zdXJlAA__" id="xdx_90C_eecd--AwardTmgMethodTextBlock_c20250101__20251231_zrIZb3iM0JU8"&gt;The Company does not grant stock options or similar awards to Section
16 Insiders, most SVPs, and other Vice Presidents and above who directly report to the CEO in anticipation of the release of material
nonpublic information that is likely to result in changes to the price of the Company&#x2019;s stock, such as a significant positive or
negative earnings announcement, or time the public release of such information based on stock option grant dates. In addition, the Company
does not grant stock options or similar awards during the four business days prior to or the one business day following the filing of
our periodic reports or the filing or furnishing of a Current Report on Form 8-K that discloses material nonpublic information.&lt;/span&gt; These
restrictions do not apply to RSUs or other types of equity awards that do not include an exercise price related to the market price of
the Company&#x2019;s stock on the date of grant. &lt;span class="xdx_phnt_RGlzY2xvc3VyZSAtIEF3YXJkIFRpbWluZyBEaXNjbG9zdXJlAA__" id="xdx_90F_eecd--AwardTmgHowMnpiCnsdrdTextBlock_c20250101__20251231_zSZzDvoJkWa9"&gt;The Company also &lt;span class="xdx_phnt_RGlzY2xvc3VyZSAtIEF3YXJkIFRpbWluZyBEaXNjbG9zdXJlAA__" id="xdx_90A_eecd--AwardTmgMnpiCnsdrdFlag_dbT_c20250101__20251231_za2973cNCGNh"&gt;grants&lt;/span&gt; stock options to eligible new hires on the first day of the month
following the employee start date.&lt;/span&gt;The Company&#x2019;s executive
officers would not be permitted to choose the grant date for any stock option grants. During fiscal 2025, the Company did not grant equity
awards to any of its named executive officers, and the Company did &lt;span class="xdx_phnt_RGlzY2xvc3VyZSAtIEF3YXJkIFRpbWluZyBEaXNjbG9zdXJlAA__" id="xdx_90E_eecd--MnpiDiscTimedForCompValFlag_dbF_c20250101__20251231_zJMqPphq00Bg"&gt;not&lt;/span&gt; time the disclosure of material nonpublic information for the purpose
of affecting the value of executive compensation.</ecd:AwardTmgMnpiDiscTextBlock>
    <ecd:AwardTmgMethodTextBlock contextRef="From2025-01-01to2025-12-31" id="Fact000017">The Company does not grant stock options or similar awards to Section
16 Insiders, most SVPs, and other Vice Presidents and above who directly report to the CEO in anticipation of the release of material
nonpublic information that is likely to result in changes to the price of the Company&#x2019;s stock, such as a significant positive or
negative earnings announcement, or time the public release of such information based on stock option grant dates. In addition, the Company
does not grant stock options or similar awards during the four business days prior to or the one business day following the filing of
our periodic reports or the filing or furnishing of a Current Report on Form 8-K that discloses material nonpublic information.</ecd:AwardTmgMethodTextBlock>
    <ecd:AwardTmgHowMnpiCnsdrdTextBlock contextRef="From2025-01-01to2025-12-31" id="Fact000018">The Company also &lt;span class="xdx_phnt_RGlzY2xvc3VyZSAtIEF3YXJkIFRpbWluZyBEaXNjbG9zdXJlAA__" id="xdx_90A_eecd--AwardTmgMnpiCnsdrdFlag_dbT_c20250101__20251231_za2973cNCGNh"&gt;grants&lt;/span&gt; stock options to eligible new hires on the first day of the month
following the employee start date.</ecd:AwardTmgHowMnpiCnsdrdTextBlock>
    <ecd:AwardTmgMnpiCnsdrdFlag contextRef="From2025-01-01to2025-12-31" id="Fact000019">true</ecd:AwardTmgMnpiCnsdrdFlag>
    <ecd:MnpiDiscTimedForCompValFlag contextRef="From2025-01-01to2025-12-31" id="Fact000020">false</ecd:MnpiDiscTimedForCompValFlag>
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