Schedule Of Computation of Earnings Per Share - Summary of Calculation of Basic Earnings Per Common Share and Diluted Earnings Per Common Share (Detail) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended
	Mar. 31, 2024	Mar. 31, 2023
Numerator:
Net Income (Loss)	$ 90,695	$ 76,097
Denominator:
Denominator for basic earnings per share-weighted average common shares	26,672	26,600
Dilutive effect of share-based awards	122	102
Denominator for diluted earnings per share-adjusted weighted average common shares	26,794	26,702
Basic Earnings Per Share	$ 3.4	$ 2.86
Diluted Earnings Per Share	$ 3.38	$ 2.85