Share-based Compensation - Additional Information (Detail)		1 Months Ended	3 Months Ended		6 Months Ended
	Aug. 07, 2024	May 31, 2023	Jun. 30, 2025 USD ($) shares	Jun. 30, 2024 USD ($)	Jun. 30, 2025 USD ($) $ / shares shares	Jun. 30, 2024 USD ($) $ / shares shares	Dec. 31, 2024 shares	May 23, 2023 shares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock split, description					On July 11, 2024, the Company announced a 10-for-1 stock split of the Company’s class A common stock and class B common stock. The stock split was effected by means of a stock dividend to the holders of record of the Company’s class A common stock and class B common stock as of the close of business on August 1, 2024, the record date for the dividend. Shares held in treasury by the Company were not impacted by the stock split. The dividend was distributed after the close of trading on August 7, 2024 and trading commenced on a split-adjusted basis at market open on August 8, 2024. As a result of the stock split, all applicable share, per share, and equity award information has been retroactively adjusted in the Consolidated Financial Statements and Notes to Consolidated Financial Statements to reflect the stock split for all periods presented.
Stock split, conversion ratio	10
Stock Option Awards
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Options outstanding, shares			4,158,000		4,158,000		4,956,000
Stock options vested					1,161,010	1,384,650
Aggregate fair value of stock option vested | $					$ 34,500,000	$ 37,500,000
Weighted average grant date fair value of stock option awards | $ / shares					$ 296.15	$ 111.23
Share-based compensation expense recognized | $			$ 5,200,000	$ 10,300,000	$ 11,800,000	$ 20,100,000
Unrecognized share-based compensation expense | $			29,500,000		$ 29,500,000
Unrecognized compensation expense expected to be recognized					2 years 3 months 18 days
Share-settled Restricted Stock Units
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Aggregate fair value of stock option vested | $					$ 18,300,000	11,700,000
Share-based compensation expense recognized | $			7,100,000	7,400,000	12,300,000	$ 12,100,000
Unrecognized share-based compensation expense | $			$ 74,300,000		$ 74,300,000
Unrecognized compensation expense expected to be recognized					3 years
Restricted stock units outstanding			880,000		880,000		1,231,000
Share-settled restricted stock units vested					334,120	374,580
Number of shares withheld to satisfy tax obligations						25,060
Shares issued						349,520
Granted, weighted average grant date fair value (in dollars per share) | $ / shares					$ 281.3	$ 145.22
Share-settled Performance Stock Units
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Aggregate fair value of stock option vested | $					$ 0	$ 0
Unrecognized share-based compensation expense | $			$ 21,900,000		$ 21,900,000
Unrecognized compensation expense expected to be recognized					2 years 1 month 6 days
Restricted stock units outstanding			279,000		279,000		307,000
Class A | Stock Option Awards
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Options outstanding, shares			4,158,290		4,158,290
2013 Equity Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Equity compensation plan expiration period		2023-05
2013 Equity Plan | Other Stock Based Awards and Cash Settled RSUs
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based compensation expense recognized | $			$ 0	100,000	$ 1,100,000	$ 1,900,000
2023 Equity Plan | Share-settled Performance Stock Units
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Weighted average grant date fair value of stock option awards | $ / shares					$ 445.66	$ 307.13
Share-based compensation expense recognized | $			$ 2,700,000	2,400,000	$ 3,400,000	$ 3,500,000
Restricted stock units outstanding			279,264		279,264
2023 Equity Plan | Class A
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based compensation, stock authorized								19,327,030
Shares of class A common stock reserved and available for future issuance			2,878,780		2,878,780
2021 Employee Stock Purchase Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based compensation expense recognized | $			$ 800,000	$ 400,000	$ 1,200,000	$ 800,000
Unrecognized share-based compensation expense | $			$ 500,000		$ 500,000
Unrecognized compensation expense expected to be recognized					2 months 12 days
2021 Employee Stock Purchase Plan | Class A
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based compensation, stock authorized			1,000,000		1,000,000
Shares of class A common stock reserved and available for future issuance			476,404		476,404
Common stock, shares issued					25,998
Stock Incentive Plan | Share-settled Restricted Stock Units
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Restricted stock units outstanding			880,064		880,064