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Subsequent events - (Details) - USD ($) $ / shares in Units, $ in Millions				1 Months Ended
	Jun. 17, 2026	Mar. 18, 2026	Mar. 13, 2026	Aug. 31, 2023	Dec. 31, 2025
Subsequent events
Repurchase of shares				$ 100.0
Repurchase period				12 months
Amount of cancelled treasury stock					$ 24.5
Subsequent event
Subsequent events
Repurchase of shares		$ 50.0
Repurchase period		24 months
Subsequent event | S 2026 Dividends
Subsequent events
Dividend Declared date			Mar. 13, 2026
Dividends payable, Record date	Jun. 17, 2026
Cash dividends	$ 31.0
Dividend payment date	Jun. 30, 2026
Subsequent event | Ordinary Shares | S 2026 Dividends
Subsequent events
Dividend declared per share	$ 0.135
Subsequent event | American Depository Shares | S 2026 Dividends
Subsequent events
Dividend declared per share	$ 0.135

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- Definition

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

+ References

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Detail information of subsequent event by type. User is expected to use existing line items from elsewhere in the taxonomy as the primary line items for this disclosure, which is further associated with dimension and member elements pertaining to a subsequent event.

+ References

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