Earnings Per Share - Computation of Basic and Diluted Net Earnings Per Share (Detail) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended
	Mar. 31, 2024	Mar. 31, 2023
Numerator:
Net income	$ 247,187	$ 119,296
Denominator:
Basic weighted average shares outstanding	56,546	57,867
Diluted weighted average shares outstanding	56,552	57,991
Earnings per share:
Earnings per share, basic	$ 4.37	$ 2.06
Earnings per share, diluted	$ 4.37	$ 2.06
Restricted Stock Units [Member]
Denominator:
Dilutive effect of unvested restricted stock and restricted stock units	6	124