Summary of Significant Accounting Policies - Computation of Basic EPS to Dilutive EPS (Detail) - USD ($) $ / shares in Units, $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Earnings Per Share [Abstract]
Net earnings per share, basic, Net Earnings	$ 198,977	$ 234,475	$ 227,562
Effect of stock options and stock grants, Net Earnings	0	0	0
Net earnings per share, diluted, Net Earnings	$ 198,977	$ 234,475	$ 227,562
Net earnings per share, basic, Weighted Average Shares	142,688,585	142,596,252	142,291,939
Effect of stock options and stock grants, Weighted Average Shares	250,392	611,647	842,281
Net earnings per share, diluted, Weighted Average Shares	142,938,977	143,207,899	143,134,220
NET EARNINGS PER SHARE, BASIC	$ 1.39	$ 1.64	$ 1.60
Effect of stock options and stock grants, Per Share Amount	0	0	(0.01)
Net earnings per share, diluted, Per Share Amount	$ 1.39	$ 1.64	$ 1.59