Earnings Per Share - Basic and Diluted Weighted Average Shares Outstanding Used to Compute Earnings Per Share (Detail) - $ / shares shares in Thousands	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Earnings Per Share [Abstract]
Basic weighted average shares outstanding	37,600	37,546	37,468
Dilutive effect of stock options and full value awards	72	108	175
Diluted weighted average shares outstanding	37,672	37,654	37,643
Basic earnings per share	$ 7.29	$ 6.87	$ 6.68
Diluted earnings per share	$ 7.28	$ 6.85	$ 6.65