Earnings Per Share - Basic and Diluted Weighted Average Shares Outstanding Used to Compute Earnings Per Share (Detail) - $ / shares shares in Thousands	3 Months Ended
	Mar. 31, 2024	Mar. 31, 2023
Earnings Per Share [Abstract]
Basic weighted average shares outstanding	37,740	37,478
Dilutive effect of stock options and full value awards	50	167
Diluted weighted average shares outstanding	37,790	37,645
Basic earnings per share	$ 1.92	$ 1.96
Diluted earnings per share	$ 1.92	$ 1.96