Net Income Per Share (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	12 Months Ended
	Dec. 31, 2025	Dec. 31, 2024	Dec. 31, 2023
Net Income Per Share
Net income attributable to shareholders	$ 571,266	$ 392,074	$ 903,505
Weighted-average shares outstanding - basic	51,804	53,282	56,359
Net effect of various dilutive stock-based compensation awards	451	515	676
Weighted-average shares outstanding - diluted	52,255	53,797	57,035
Net income per share:
Basic	$ 11.03	$ 7.36	$ 16.03
Diluted (a)	$ 10.93	$ 7.29	$ 15.84
(a) Equity awards excluded from diluted net income per share as their effect would have been anti-dilutive	32	16	32