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Stockholders' equity (Details) - USD ($) $ / shares in Units, $ in Thousands | 3 Months Ended | 9 Months Ended
--- | --- | ---
Sep. 30, 2025 | Jun. 30, 2025 | Mar. 31, 2025 | Sep. 30, 2024 | Sep. 30, 2025 | Sep. 30, 2024
Stockholders' Equity Note [Abstract] |  |  |  |  |  |
Dividends declared on common stock | $ 228,127 | $ 228,300 | $ 228,300 | $ 227,191 | $ 684,772 | $ 676,733
Dividends declared on common stock (per share) | $ 1.32 | $ 1.32 | $ 1.32 | $ 1.30 | $ 3.96 | $ 3.87
Other Comprehensive Income (Loss), Foreign Currency Transaction and Translation Adjustment, Net of Tax | $ (4,788) |  |  | $ 5,181 | $ 14,049 | $ (6,633)
Shares of common stock authorized | 400,000,000.0 |  |  |  | 400,000,000.0 |
Shares of common stock issued and outstanding | 170,300,000 |  |  |  | 170,300,000 |
Shares of preferred stock authorized | 100,000,000.0 |  |  |  | 100,000,000.0 |
Shares of preferred stock issued and outstanding | 0 |  |  |  | 0 |
Number of "excess stock" authorized (in shares) | 200,000,000.0 |  |  |  | 200,000,000.0 |
Number of excess stock authorized issued and outstanding (in shares) | 0 |  |  |  | 0 |

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