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				6 Months Ended
	Jun. 30, 2024	Mar. 31, 2024	Jun. 30, 2023	Mar. 31, 2023	Jun. 30, 2024	Jun. 30, 2023
Numerator:
Net income	$ 67,970	$ 247,187	$ 64,516	$ 119,296	$ 315,157	$ 183,812
Denominator:
Basic weighted average shares outstanding	56,451		57,920		56,499	57,895
Diluted weighted average shares outstanding	56,771		58,033		56,548	58,050
Earnings per share:
Earnings per share, basic	$ 1.2		$ 1.11		$ 5.58	$ 3.17
Earnings per share, diluted	$ 1.2		$ 1.11		$ 5.57	$ 3.17
Restricted Stock Units [Member]
Denominator:
Dilutive effect of unvested restricted stock and restricted stock units	320		113		49	155