v3.25.4
Fair Value Measurement on a Recurring Basis (Details)
Sep. 30, 2025
Cantor Equity Partners, Inc. [Member]
Fair Value Measurement on a Recurring Basis (Details) [Line Items]
Consummation of the business combination percentage
15.80%
X
- Definition
Consummation business combination percentage.
+ References
No definition available.
+ Details
Name:
xxi_ConsummationOfBusinessCombinationPercentage
Namespace Prefix:
xxi_
Data Type:
dtr:percentItemType
Balance Type:
na
Period Type:
instant
X
- References
No definition available.
+ Details
Name:
xxi_FairValueMeasurementonaRecurringBasisDetailsLineItems
Namespace Prefix:
xxi_
Data Type:
xbrli:stringItemType
Balance Type:
na
Period Type:
duration
X
- Details
Name:
srt_ConsolidatedEntitiesAxis=xxi_CantorEquityPartnersIncMember
Namespace Prefix:
Data Type:
na
Balance Type:
Period Type: