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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, 2025	Sep. 30, 2024	Sep. 30, 2025	Sep. 30, 2024	Dec. 31, 2024
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Shares available for grant under the stock incentive plan	2,457,001		2,457,001
Unrecognized compensation costs related to non-vested	$ 50.0		$ 50.0
Weighted-average period over which cost is expected to be recognized			1 year 9 months 18 days
Common stock, shares issued	41,107,947		41,107,947		41,020,421
Restricted Stock [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Number of non-option equity instruments granted during the period			176,590
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	97,712		97,712
Common stock, shares issued	10,343		10,343
Employees [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Share-based payment arrangement, amount capitalized	$ 0.5	$ 0.3	$ 1.2	$ 0.9
Employees [Member] \| Restricted Stock [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Weighted-average grant date fair value per share			$ 197.78
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			20,606
Number of stock option equity instruments granted during the period			35,549
Weighted-average fair value each option granted			$ 67.2
Weighted-average grant date fair value per share			$ 193.49