Details of Significant Accounts - Capital surplus, reconciliation of capital surplus (Details) $ in Thousands	12 Months Ended
Dec. 31, 2023 USD ($)
Share Repurchase Plan:
Shares retired	$ 1,634
Increase (decrease) through treasury share transactions, equity	(51,064)
Shares repurchased
Share Repurchase Plan:
Shares repurchased	(1,064)
Shares retired	0
Shares Surrender
Share Repurchase Plan:
Increase (decrease) through treasury share transactions, equity	0
Tender Offer
Share Repurchase Plan:
Increase (decrease) through treasury share transactions, equity	(50,000)
Capital stock
Share Repurchase Plan:
Shares retired	0
Increase (decrease) through treasury share transactions, equity	(1,634)
Capital stock \| Shares repurchased
Share Repurchase Plan:
Shares repurchased	0
Shares retired	(19)
Capital stock \| Shares Surrender
Share Repurchase Plan:
Increase (decrease) through treasury share transactions, equity	(2)
Capital stock \| Tender Offer
Share Repurchase Plan:
Increase (decrease) through treasury share transactions, equity	(1,613)
Additional paid-in capital [member]
Share Repurchase Plan:
Increase (decrease) through treasury share transactions, equity	(76,475)
Additional paid-in capital [member] \| Shares repurchased
Share Repurchase Plan:
Shares repurchased	0
Shares retired	(893)
Additional paid-in capital [member] \| Shares Surrender
Share Repurchase Plan:
Increase (decrease) through treasury share transactions, equity	2
Additional paid-in capital [member] \| Tender Offer
Share Repurchase Plan:
Increase (decrease) through treasury share transactions, equity	(75,584)
Other \| Shares repurchased
Share Repurchase Plan:
Shares repurchased	0
Shares retired	38
Other \| Shares Surrender
Share Repurchase Plan:
Increase (decrease) through treasury share transactions, equity	0
Other \| Tender Offer
Share Repurchase Plan:
Increase (decrease) through treasury share transactions, equity	27,197
Treasury shares \| Shares repurchased
Share Repurchase Plan:
Shares repurchased	(1,064)
Shares retired	874
Treasury shares \| Shares Surrender
Share Repurchase Plan:
Increase (decrease) through treasury share transactions, equity	0
Treasury shares \| Tender Offer
Share Repurchase Plan:
Increase (decrease) through treasury share transactions, equity	0
Additional paid-in capital [member]
Share Repurchase Plan:
Increase (decrease) through treasury share transactions, equity	(76,475)
Other
Share Repurchase Plan:
Increase (decrease) through treasury share transactions, equity	27,235
Treasury shares
Share Repurchase Plan:
Increase (decrease) through treasury share transactions, equity	$ (190)

The amount of treasury stock cancelled during the period. [Refer: Treasury shares]

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Name IAS
-Number 1
-IssueDate 2023-01-01
-Paragraph 106
-Subparagraph d
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-URIDate 2023-03-23

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The increase (decrease) in equity resulting from treasury share transactions. [Refer: Equity; Treasury shares]

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Name IAS
-Number 1
-IssueDate 2023-01-01
-Paragraph 106
-Subparagraph d
-URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=1&code=ifrs-tx-2023-en-r&anchor=para_106_d&doctype=Standard
-URIDate 2023-03-23

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The decrease in equity resulting from the purchase of treasury shares. [Refer: Treasury shares]

+ References

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Share Repurchase Plan

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No definition available.

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