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Stock-Based Compensation Plans - Additional Information (Detail) - USD ($) $ / shares in Units, $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2024	Sep. 30, 2023	Sep. 30, 2024	Sep. 30, 2023	Dec. 31, 2023
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Shares available for grant under the stock incentive plan	2,545,015		2,545,015
Unrecognized compensation costs related to non-vested	$ 51.9		$ 51.9
Weighted-average period over which cost is expected to be recognized			1 year 10 months 24 days
Common stock, shares issued	41,034,858		41,034,858		40,940,769
Restricted Stock [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Number of non-option equity instruments granted during the period			149,253
Employees Stock Purchase Plan [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Shares available for grant under the stock incentive plan	108,055		108,055
Common stock, shares issued	8,511		8,511
Employees [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Share-based payment arrangement, amount capitalized	$ 0.3	$ 0.2	$ 0.9	$ 0.6
Employees [Member] \| Restricted Stock [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Weighted-average grant date fair value per share			$ 217.6
Employees [Member] \| Performance Based Share [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Number of non-option equity instruments granted during the period			20,793
Number of stock option equity instruments granted during the period			32,608
Weighted-average fair value each option granted			$ 77.16
Weighted-average grant date fair value per share			$ 219.32
Employees [Member] \| Employees Stock Purchase Plan [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Shares available for grant under the stock incentive plan	121,221		121,221