Net Income Per Share (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Net Income Per Share
Net income attributable to shareholders	$ 392,074	$ 903,505	$ 1,426,884
Weighted-average shares outstanding - basic	53,282	56,359	64,838
Net effect of various dilutive stock-based compensation awards	515	676	615
Weighted-average shares outstanding - diluted	53,797	57,035	65,453
Net income per share:
Basic	$ 7.36	$ 16.03	$ 22.01
Diluted (a)	$ 7.29	$ 15.84	$ 21.80
(a) Equity awards excluded from diluted net income per share as their effect would have been anti-dilutive	16	32	53