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Earnings Per Share Data and Stock Based Compensation - Additional Information (Detail) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2026	Jun. 30, 2025	Jun. 30, 2026	Jun. 30, 2025
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Anti-dilutive weighted average stock options excluded from computation of earnings per share	10,625	7,500	5,313	7,500
Compensation cost recognized			$ 45,413	$ 45,707
Employee Stock Option
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Compensation cost recognized, pre-tax charge	$ 3,700	$ 8,100	8,500	17,500
Restricted Stock Awards, Restricted Stock Units and Performance Based Restricted Stock Units
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Compensation cost recognized, pre-tax charge	18,600	$ 15,500	$ 36,000	$ 27,300
Unrecognized compensation cost vesting period			2 years 9 months 18 days
Unvested Stock option
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Unrecognized compensation cost related to unvested options and restricted stock	$ 199,200		$ 199,200
Restricted Stock \| 2020 Stock Incentive Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Restricted shares and restricted units, net of cancellations, granted during period			554,228
Weighted-average grant date fair value, per share			$ 184.94
Performance Based Restricted Stock Units \| 2020 Stock Incentive Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Restricted shares and restricted units, net of cancellations, granted during period			57,122