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Amount authorized for purchase of share under share repurchase plan. Includes, but is not limited to, repurchase of stock and unit of ownership.

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Total number of common shares of an entity that have been sold or granted to shareholders (includes common shares that were issued, repurchased and remain in the treasury). These shares represent capital invested by the firm's shareholders and owners, and may be all or only a portion of the number of shares authorized. Shares issued include shares outstanding and shares held in the treasury.

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The number of shares issued or sold by the subsidiary or equity method investee per stock transaction.

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Equity impact of the value of stock that has been repurchased during the period and has not been retired and is not held in treasury. Some state laws may mandate the circumstances under which an entity may acquire its own stock and prescribe the accounting treatment therefore. This element is used when state law does not recognize treasury stock.

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Ordinary shares and treasury shares (Details) - USD ($)			12 Months Ended
Ordinary shares and treasury shares (Details) - USD ($)	Mar. 28, 2025	Jul. 15, 2024	Dec. 31, 2025	Dec. 31, 2024	Mar. 31, 2026	Dec. 31, 2023
Ordinary Share
Amount of shares authorized			$ 50,000
Ordinary shares, shares authorized (in shares)			10,000,000,000
Convertible notes payable			$ 7,664,000
Share-based compensation arrangement by share-based payment award, shares to be repurchased		4,500,000
Share repurchase program, authorized, amount				$ 20,000,000
Share repurchase program, authorized (in shares)			20,897,751	503,000
Repurchase of ordinary shares			$ 28,985,000	$ 1,019,000
Treasury Shares
Ordinary Share
Repurchase of ordinary shares			$ 28,985,000	$ 1,019,000
Forecast
Ordinary Share
Share repurchase program, authorized, amount					$ 40,000,000
Common Class A
Ordinary Share
Ordinary shares, shares authorized (in shares)			8,000,000,000	8,000,000,000
Ordinary shares, par value per share (in USD per share)			$ 0.000005	$ 0.000005
Ordinary shares, shares issued (in shares)			336,406,528	296,169,110
Convertible notes payable (in shares)			4,107,146
Convertible notes payable			$ 7,664,000
Common Class A \| Follow-On Public Offering
Ordinary Share
Number of shares issued in transaction (in shares)	25,000,000
Share price (in USD per share)	$ 1.80
Consideration received	$ 42,578,000
Common Class A \| Share Incentive 2022 Plan
Ordinary Share
Ordinary shares, shares issued (in shares)			8,130,272	7,180,061		554,575
Class B Ordinary Shares
Ordinary Share
Ordinary shares, shares authorized (in shares)			1,000,000,000	1,000,000,000
Ordinary shares, par value per share (in USD per share)			$ 0.000005	$ 0.000005
Ordinary shares, shares issued (in shares)			45,960,916	48,960,916
Convertible notes payable (in shares)			3,000,000
Designated Shares
Ordinary Share
Ordinary shares, shares authorized (in shares)			1,000,000,000
Ordinary shares, par value per share (in USD per share)			$ 0.000005