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	3 Months Ended
	Mar. 31, 2024	Mar. 31, 2023
Net Earnings Attributable to Shareholders
Basic earnings attributable to shareholders	$ 169,152	$ 226,011
Diluted earnings attributable to shareholders	$ 169,152	$ 226,011
Weighted Average Shares
Weighted average basic shares outstanding	143,194	154,164
Effect of dilutive potential common shares	931	1,308
Weighted average diluted shares outstanding	144,125	155,472
Earnings Per Share [Abstract]
Basic earnings attributable to shareholders per share	$ 1.18	$ 1.47
Diluted earnings attributable to shareholders per share	$ 1.17	$ 1.45