Description of Organization, Business Operations and Basis of Presentation (Details) - USD ($)						3 Months Ended		9 Months Ended		12 Months Ended
	Aug. 28, 2025	Aug. 25, 2025	Aug. 07, 2025	Jul. 16, 2025	Jan. 08, 2025	Sep. 30, 2025	Sep. 30, 2024	Sep. 30, 2025	Sep. 30, 2024	Dec. 31, 2024	May 21, 2024
Description of Organization, Business Operations and Basis of Presentation [Line Items]
Gross proceeds					$ 200,000,000			$ 200,000,000
Net proceeds from private placement								$ 5,000,000
Number of preferred stock (in Shares)
Preferred stock per share (in Dollars per share)						$ 0.0001		$ 0.0001		$ 0.0001
Exchange of bitcoin	$ 20
Amount of bitcoin		$ 1
Cash						$ 25,000		$ 25,000
Working capital deficit								417,000		299,000
Interest income on investments held in the trust account						$ 2,149,334		$ 5,465,011
Pubco [Member]
Description of Organization, Business Operations and Basis of Presentation [Line Items]
Principal amount				$ 320,000,000
July Convertible Notes Subscription Agreements [Member]
Description of Organization, Business Operations and Basis of Presentation [Line Items]
Convertible preferred stock			$ 223,620,000
Purchase price			$ 190,080,000
Preferred Stock [Member]
Description of Organization, Business Operations and Basis of Presentation [Line Items]
Number of preferred stock (in Shares)			2,236,000
Preferred stock per share (in Dollars per share)			$ 85
First Convertible Notes Option [Member]
Description of Organization, Business Operations and Basis of Presentation [Line Items]
Principal amount				125,000,000
First Convertible Notes Option [Member] | July Convertible Notes Subscription Agreements [Member]
Description of Organization, Business Operations and Basis of Presentation [Line Items]
Principal amount				34,870,000
Second Convertible Notes Option [Member]
Description of Organization, Business Operations and Basis of Presentation [Line Items]
Principal amount				125,000,000
Second Convertible Notes Option [Member] | July Convertible Notes Subscription Agreements [Member]
Description of Organization, Business Operations and Basis of Presentation [Line Items]
Principal amount				$ 9,323,000
August Convertible Notes Investors [Member]
Description of Organization, Business Operations and Basis of Presentation [Line Items]
Principal amount			$ 30,500,000
Number of preferred stock (in Shares)		482,924
Convertible preferred stock		$ 48,300,000
Preferred stock per share (in Dollars per share)		$ 85
Purchase price		$ 41,050,000
Convertible Notes [Member]
Description of Organization, Business Operations and Basis of Presentation [Line Items]
Principal amount			$ 574,693,000
Business Combination [Member]
Description of Organization, Business Operations and Basis of Presentation [Line Items]
Outstanding voting securities percentage						50.00%		50.00%
Business Combination [Member] | Trust Account [Member]
Description of Organization, Business Operations and Basis of Presentation [Line Items]
Fair market value percentage						80.00%		80.00%
CEPO Cash Equity PIPE Shares [Member]
Description of Organization, Business Operations and Basis of Presentation [Line Items]
Price per price (in Dollars per share)		$ 10
Purchase price		$ 400,000,000
July CEPO BTC PIPE [Member]
Description of Organization, Business Operations and Basis of Presentation [Line Items]
Price per price (in Dollars per share)		$ 10
August CEPO BTC Equity PIPE [Member]
Description of Organization, Business Operations and Basis of Presentation [Line Items]
Price per price (in Dollars per share)	$ 10
Sponsor [Member]
Description of Organization, Business Operations and Basis of Presentation [Line Items]
Price per price (in Dollars per share)					$ 10
Public share redemption price. (in Dollars per share)						$ 10.15		$ 10.15
Redeemed share price (in Dollars per share)								0.15
Reduction amount of funds in trust account (in Dollars per share)						$ 10.15		$ 10.15
Cash						$ 25,000		$ 25,000
Loan amount drawn								134,000
Loan amount						$ 330,000		$ 330,000		$ 0
Common Class A [Member]
Description of Organization, Business Operations and Basis of Presentation [Line Items]
Common stock par value (in Dollars per share)						$ 0.0001		$ 0.0001		$ 0.0001
Price per price (in Dollars per share)				$ 0.01
Public share redemption price. (in Dollars per share)						$ 12		$ 12
Number of share (in Shares)				1
Number of ordinary shares (in Shares)						500,000		500,000		500,000
Common Class A [Member] | CEPO Cash Equity PIPE Shares [Member]
Description of Organization, Business Operations and Basis of Presentation [Line Items]
Number of ordinary shares (in Shares)		40,000,000
Common Class A [Member] | CEPO BTC Equity PIPE Investors [Member]
Description of Organization, Business Operations and Basis of Presentation [Line Items]
Price per price (in Dollars per share)						$ 10		$ 10
Exchange of bitcoin								$ 4,176.11
Class B Ordinary Shares
Description of Organization, Business Operations and Basis of Presentation [Line Items]
Common stock par value (in Dollars per share)						$ 0.0001		$ 0.0001		$ 0.0001
Number of share (in Shares)				1
Number of ordinary shares (in Shares)						5,000,000		5,000,000		5,000,000
Pubco Class A Stock [Member]
Description of Organization, Business Operations and Basis of Presentation [Line Items]
Price per price (in Dollars per share)				$ 0.01
Pubco Class B Stock [Member]
Description of Organization, Business Operations and Basis of Presentation [Line Items]
Price per price (in Dollars per share)				$ 0.01
Convertible Preferred Stock [Member]
Description of Organization, Business Operations and Basis of Presentation [Line Items]
Convertible preferred stock, share (in Shares)				3,200,000
Percentage of convertible preferred stock				7.00%
July Preferred Stock Investor [Member]
Description of Organization, Business Operations and Basis of Presentation [Line Items]
Number of preferred stock (in Shares)			300,000
Convertible preferred stock			$ 30,000,000
Preferred stock per share (in Dollars per share)			$ 85
Purchase price			$ 25,500,000
Preferred Stock Private Placements [Member]
Description of Organization, Business Operations and Basis of Presentation [Line Items]
Number of preferred stock (in Shares)		3,019,200
Convertible preferred stock		$ 301,920,000
Purchase price		$ 256,632,000
IPO [Member]
Description of Organization, Business Operations and Basis of Presentation [Line Items]
Price per price (in Dollars per share)					$ 10
Offering cost										$ 218,000
Loan amount						$ 330,000		$ 330,000		$ 0
IPO [Member] | Sponsor [Member]
Description of Organization, Business Operations and Basis of Presentation [Line Items]
Loan amount						$ 1,750,000		$ 1,750,000			$ 300,000
IPO [Member] | CF Secured, LLC [Member]
Description of Organization, Business Operations and Basis of Presentation [Line Items]
Gross proceeds					$ 200,000,000
IPO [Member] | Common Class A [Member]
Description of Organization, Business Operations and Basis of Presentation [Line Items]
Number of shares (in Shares)					20,000,000
Common stock par value (in Dollars per share)					$ 0.0001
Public share redemption price. (in Dollars per share)					$ 10
Private Placement [Member]
Description of Organization, Business Operations and Basis of Presentation [Line Items]
Net proceeds from private placement					$ 5,000,000
Offering cost					4,500,000
Underwriting fees					4,100,000
Other offering cost					$ 400,000
Public share redemption price. (in Dollars per share)					$ 10
Percentage of principal amount				1.00%
Private Placement [Member] | Convertible Notes [Member]
Description of Organization, Business Operations and Basis of Presentation [Line Items]
Principal amount				$ 500,000,000
Private Placement [Member] | Newco Equity Investors [Member]
Description of Organization, Business Operations and Basis of Presentation [Line Items]
Price per price (in Dollars per share)		$ 10
Exchange of bitcoin		$ 865
Private Placement [Member] | Common Class A [Member]
Description of Organization, Business Operations and Basis of Presentation [Line Items]
Number of shares (in Shares)					500,000
Price per price (in Dollars per share)	$ 10	$ 10			$ 10
Net proceeds from private placement					$ 5,000,000
Exchange of bitcoin	$ 20	$ 4,156.11
Public Shares [Member]
Description of Organization, Business Operations and Basis of Presentation [Line Items]
Public share redemption price. (in Dollars per share)						$ 10.15		$ 10.15
Redemption shares percentage								15.00%
Public Shares [Member] | Sponsor [Member]
Description of Organization, Business Operations and Basis of Presentation [Line Items]
Redeemed share price (in Dollars per share)								$ 0.15
Redemption shares percentage								100.00%
Newco Private Placement [Member]
Description of Organization, Business Operations and Basis of Presentation [Line Items]
Price per price (in Dollars per share)		$ 10
Exchange of bitcoin	20
Newco Private Placement [Member] | August CEPO BTC Equity PIPE [Member]
Description of Organization, Business Operations and Basis of Presentation [Line Items]
Exchange of bitcoin	$ 5,021.11