Shareholders' equity - Schedule of Earnings (Loss) Per Share (Basic and Diluted) (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Earnings Per Share [Abstract]
Net income	$ 631,198	$ 478,197	$ 482,763
Net (income) loss attributable to noncontrolling interest	(729)	(1,242)	15
Adjustment of redeemable noncontrolling interest to redemption value	(560)	46	(948)
Earnings available to common shareholders	$ 629,909	$ 477,001	$ 481,830
Weighted average number of common shares outstanding - basic	223,652	221,504	219,232
Effect of dilutive securities
Weighted average number of common shares outstanding - diluted	224,486	222,471	219,733
Earnings per share - basic (in dollars per share)	$ 2.82	$ 2.15	$ 2.20
Earnings per share - diluted (in dollars per share)	$ 2.81	$ 2.14	$ 2.19
Restricted stock
Effect of dilutive securities
Effect of dilutive securities (in shares)	535	736	246
Performance share units
Effect of dilutive securities
Effect of dilutive securities (in shares)	299	230	254
Stock options
Effect of dilutive securities
Effect of dilutive securities (in shares)	0	1	1