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Details of Significant Accounts - Share-based payment, shareholder earnout - Narrative (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Service agreements with Board of Directors
Share-based payment arrangements
Expenses recorded	$ 0	$ 58	$ 0
Shareholder Earnout Shares
Share-based payment arrangements
Threshold trading days over which the daily volume-weighted average price of the perfect class A ordinary shares is considered	20 days
Threshold trading day period over which the daily volume-weighted average price of the perfect class A ordinary shares is considered	30 days
Shareholder Earnout Shares | If daily volume-weighted average price of the Perfect Class A Ordinary Shares is greater than or equal to $11.50
Share-based payment arrangements
Number of earnout shares issuable (in shares)	3,000
Daily volume-weighted average price of the perfect class A ordinary shares considered (in USD per share)	$ 11.50
Shareholder Earnout Shares | If daily volume-weighted average price of the Perfect Class A Ordinary Shares is greater than or equal to $13.00
Share-based payment arrangements
Number of earnout shares issuable (in shares)	3,000
Daily volume-weighted average price of the perfect class A ordinary shares considered (in USD per share)	$ 13.00
Shareholder Earnout Shares | If daily volume-weighted average price of the Perfect Class A Ordinary Shares is greater than or equal to $14.50
Share-based payment arrangements
Number of earnout shares issuable (in shares)	4,000
Daily volume-weighted average price of the perfect class A ordinary shares considered (in USD per share)	$ 14.50

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Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Name IFRS
-Number 2
-IssueDate 2023-01-01
-Paragraph 51
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