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Face amount or stated value per share of common stock.

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Fair value portion of borrowing which can be exchanged for a specified number of another security at the option of the issuer or the holder, for example, but not limited to, the entity's common stock.

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Cost of crypto asset. Excludes crypto asset held for platform user.

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Face (par) amount of debt instrument at time of issuance.

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Amount after tax of income (loss) from continuing operations attributable to the parent.

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Organization and Description of Business - Additional Information (Details) $ / shares in Units, shares in Thousands	1 Months Ended	3 Months Ended			9 Months Ended
	Jun. 30, 2025 USD ($)	Sep. 30, 2025 USD ($) Bitcoin $ / shares	Dec. 31, 2024 USD ($) Bitcoin $ / shares	Sep. 30, 2024 USD ($)	Sep. 30, 2025 USD ($) Bitcoin $ / shares shares	Sep. 30, 2024 USD ($)	Feb. 14, 2025 $ / shares
Subsidiary, Sale of Stock [Line Items]
Cash and cash equivalents		$ 6,663,463	$ 18,330,359		$ 6,663,463
Common stock, par value \| $ / shares		$ 0.0001	$ 0.0001		$ 0.0001		$ 0.0001
Working capital		$ 6,100,000			$ 6,100,000
Operating loss		5,940,318		$ 4,169,159	21,766,205	$ 6,212,867
Accumulated deficit		136,247,912	$ 101,348,522		136,247,912
SAFE notes		98,000,000			98,000,000
Loss on extinguishment of debt		0		$ 0	9,612,199	0
Fair value adjustments on convertible debt instruments		$ 14,500,000			$ 14,500,000
Crypto asset, number of units \| Bitcoin		1,575	1,094		1,575
Bitcoin investment treasury		$ 114,300,000	$ 67,900,000		$ 114,300,000
Crypto asset number of restricted units \| Bitcoin		800			800
Newly issues share value of stock					$ 3,434,331
Sale of common stock \| shares					1,150
Gross proceeds from sale of common stock					$ 3,478,137	0
Equity Purchase Facility [Member]
Subsidiary, Sale of Stock [Line Items]
Aggregate value available from purchase agreement	$ 250,000,000
Newly issues share value of stock	$ 250,000,000
March 2025 Investor Note [Member]
Subsidiary, Sale of Stock [Line Items]
Principal debt outstanding		$ 46,300,000			$ 46,300,000
Conversion price \| $ / shares		$ 12.5			$ 12.5
June 2025 Amended Investor Note [Member]
Subsidiary, Sale of Stock [Line Items]
Principal debt outstanding		$ 20,000,000			$ 20,000,000
Conversion price \| $ / shares		$ 9			$ 9
Fold Holdings [Member]
Subsidiary, Sale of Stock [Line Items]
Common stock, par value \| $ / shares							$ 0.0001
Convertible Note [Member]
Subsidiary, Sale of Stock [Line Items]
Principal debt outstanding		$ 66,300,000			$ 66,300,000
Bitcoin [Member] \| March 2025 Investor Note [Member] \| Fold's Assets as Collateral [Member]
Subsidiary, Sale of Stock [Line Items]
Crypto asset, number of units \| Bitcoin		500			500
Bitcoin [Member] \| December 2024 Senior Secured Investor Note [Member] \| Fold's Assets as Collateral [Member]
Subsidiary, Sale of Stock [Line Items]
Crypto asset, number of units \| Bitcoin		300			300
Investment Treasury [Member]
Subsidiary, Sale of Stock [Line Items]
Fair value adjustments on the Company's digital assets			$ (29,624,615)		$ (31,203,938)	377,039
Crypto asset, number of units \| Bitcoin		1,494	1,002		1,494
Investment Treasury [Member] \| Bitcoin [Member]
Subsidiary, Sale of Stock [Line Items]
Crypto asset, number of units \| Bitcoin		1,494			1,494
Bitcoin investment treasury		$ 170,400,000			$ 170,400,000
Bitcoin investment treasury restricted		$ 91,300,000			$ 91,300,000
Crypto asset number of restricted units \| Bitcoin		800			800
Rewards Treasury [Member]
Subsidiary, Sale of Stock [Line Items]
Fair value adjustments on the Company's digital assets			$ (2,993,182)		$ (1,961,803)	(2,639,860)
Crypto asset, number of units \| Bitcoin		81	92		81
Rewards Treasury [Member] \| Bitcoin [Member]
Subsidiary, Sale of Stock [Line Items]
Crypto asset, number of units \| Bitcoin		81			81
Bitcoin investment treasury		$ 9,300,000			$ 9,300,000
Digital Assets [Member]
Subsidiary, Sale of Stock [Line Items]
Fair value adjustments on the Company's digital assets			$ (32,617,797)		$ (33,165,741)	$ (2,262,821)