Basic and Diluted Earnings per Share - Numerator and Denominator of the Basic and Diluted Per Share Computations for Earnings Attributable to Shareholders Per Share (Detail) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Net Earnings Attributable to Shareholders
Basic earnings attributable to shareholders	$ 752,883	$ 1,357,399	$ 1,415,492
Diluted earnings attributable to shareholders	$ 752,883	$ 1,357,399	$ 1,415,492
Weighted Average Shares
Weighted average basic shares outstanding	149,141	163,010	169,145
Effect of dilutive potential common shares	1,045	1,417	2,105
Weighted average diluted shares outstanding	150,186	164,427	171,250
Earnings Per Share [Abstract]
Basic earnings attributable to shareholders per share	$ 5.05	$ 8.33	$ 8.37
Diluted earnings attributable to shareholders per share	$ 5.01	$ 8.26	$ 8.27