Stockholders' equity - Common stock - Additional Information (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2024	Sep. 30, 2023	Sep. 30, 2024	Sep. 30, 2023	Jun. 30, 2024	Dec. 31, 2023	Jun. 30, 2023	Dec. 31, 2022
Stockholders Equity Note
Cash dividends	$ 44,614	$ 39,675	$ 134,309	$ 118,924
Dividends Declared per Common Share	$ 0.62	$ 0.55	$ 1.86	$ 1.65
Dividend payable, to be paid date			Oct. 01, 2024
Dividends payable, record date			Sep. 13, 2024
Stockholders' equity	$ 5,790,514	$ 4,457,608	$ 5,790,514	$ 4,457,608	$ 5,372,678	$ 5,146,953	$ 4,565,009	$ 4,093,425