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Share capital (Details) - USD ($) $ in Thousands	3 Months Ended	9 Months Ended
	Sep. 30, 2024	Sep. 30, 2024	Oct. 22, 2024	Feb. 20, 2024
Equity, Class of Treasury Stock [Line Items]
Share repurchase program, value of shares repurchased	$ 100,000
Subsequent event
Equity, Class of Treasury Stock [Line Items]
Stock repurchase program, authorized amount			$ 650,000
Buyback Program
Equity, Class of Treasury Stock [Line Items]
Share repurchase program, number of shares repurchased (in shares)		337,070
Share repurchase program, value of shares repurchased		$ 100,000
Buyback Program | Maximum
Equity, Class of Treasury Stock [Line Items]
Share repurchase program, authorized percentage		10.00%
February 2024
Equity, Class of Treasury Stock [Line Items]
Stock repurchase program, authorized amount				$ 500,000
October 2024 | Subsequent event
Equity, Class of Treasury Stock [Line Items]
Stock repurchase program, authorized amount			$ 250,000

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Stock Repurchase Program, Authorized Percentage

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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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Number of shares that have been repurchased and retired during the period.

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Equity impact of the value of stock that has been repurchased and retired during the period. The excess of the purchase price over par value can be charged against retained earnings (once the excess is fully allocated to additional paid in capital).

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