Share capital - Narrative (Details) - USD ($) $ in Thousands |
1 Months Ended | 3 Months Ended | 6 Months Ended | 12 Months Ended | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Jun. 23, 2025 |
Mar. 19, 2025 |
Nov. 07, 2024 |
Oct. 31, 2024 |
Sep. 25, 2024 |
Jun. 30, 2025 |
Mar. 31, 2025 |
Dec. 19, 2024 |
Jun. 30, 2025 |
Mar. 31, 2025 |
Jun. 30, 2025 |
Dec. 31, 2024 |
Feb. 18, 2025 |
|
| Equity [Abstract] | |||||||||||||
| Stock repurchase program, additional amount authorized | $ 750,000 | ||||||||||||
| Stock repurchase program, authorized amount | $ 1,000,000 | ||||||||||||
| Total number of shares purchased (in shares) | 1,717,181 | 1,360,537 | 479,524 | 409,512 | 337,070 | 1,717,181 | 1,360,537 | 953,593 | 3,077,718 | 2,179,699 | |||
| Share repurchase program, value of shares repurchased | $ 250,000 | $ 250,000 | $ 250,000 | $ 250,000 | $ 500,000 | ||||||||
| Approximate dollar value of shares that may yet be purchased under the program (in millions) | $ 500,000 | $ 750,000 | $ 450,000 | $ 556,400 | $ 400,000 | $ 500,000 | $ 250,000 | $ 500,000 | $ 500,000 | ||||