Stock-Based Compensation - Additional Information (Detail) - USD ($) $ / shares in Units, $ in Millions				12 Months Ended
	Feb. 07, 2024	Feb. 05, 2024	Nov. 23, 2020	Dec. 31, 2024		Dec. 31, 2023	Dec. 31, 2022	May 31, 2023
Share-based Compensation Arrangement by Share-based Payment Award, Compensation Cost [Line Items]
Capitalized compensation cost				$ 17.5		$ 14.7	$ 9.0
Compensation expense related to ESPP				(22.9)		129.8	94.9
Software and Capitalized Software Costs [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Compensation Cost [Line Items]
Capitalized compensation cost				$ 17.5		14.7	9.0
2023 Long-Term Incentive Plan [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Compensation Cost [Line Items]
Maximum number of shares authorized								3,600,000
Time-based Restricted Stock Units [Member] | Executive Officers [Member] | 2023 Long-Term Incentive Plan [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Compensation Cost [Line Items]
Maximum number of shares authorized				31,473
Restricted Stock [Member] | 2023 Long-Term Incentive Plan [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Compensation Cost [Line Items]
Restricted shares of common stock issued				894,475
Restricted Stock [Member] | Executive Officers [Member] | 2023 Long-Term Incentive Plan [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Compensation Cost [Line Items]
Maximum number of shares authorized				17,209
Restricted Stock [Member] | Non-Employee Members [Member] | 2023 Long-Term Incentive Plan [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Compensation Cost [Line Items]
Restricted shares of common stock issued				8,255
Restricted Stock [Member] | Market-Based Shares [Member] | 2023 Long-Term Incentive Plan [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Compensation Cost [Line Items]
Restricted shares of common stock issued				187,174
Restricted Stock [Member] | Time-Based Shares [Member] | 2023 Long-Term Incentive Plan [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Compensation Cost [Line Items]
Restricted shares of common stock issued				707,301
Restricted Stock [Member] | Time-Based Shares [Member] | Minimum [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Compensation Cost [Line Items]
Share-Based Compensation Arrangement by Share-Based Payment Award, Award Vesting Period				3 years
Restricted Stock [Member] | Time-Based Shares [Member] | Maximum [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Compensation Cost [Line Items]
Share-Based Compensation Arrangement by Share-Based Payment Award, Award Vesting Period				4 years
Restricted Stock [Member] | Time-Based Shares [Member] | Non-Employee Members [Member] | 2023 Long-Term Incentive Plan [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Compensation Cost [Line Items]
Share-based compensation arrangement by share-based payment award, award vesting rights				Such shares of restricted stock will cliff-vest on the seventh day following the first anniversary date of the grant, provided that such director is providing services to the Company through the applicable vesting date, and subject to the terms and conditions of the 2023 LTIP and the applicable restricted stock award agreement.
Restricted Stock [Member] | VWAP Value Equals or Exceeds $222 Per Share [Member] | 2023 Long-Term Incentive Plan [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Compensation Cost [Line Items]
VWAP Share Price				$ 222
Vesting percentage, restricted shares				50.00%
Restricted Stock [Member] | VWAP Value Equals or Exceeds $251 Per Share [Member] | 2023 Long-Term Incentive Plan [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Compensation Cost [Line Items]
VWAP Share Price				$ 251
Vesting percentage, restricted shares				50.00%
Restricted Stock [Member] | February 2025 | 2023 Long-Term Incentive Plan [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Compensation Cost [Line Items]
Vesting percentage, restricted shares				24.00%
Restricted Stock [Member] | February 2026 | 2023 Long-Term Incentive Plan [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Compensation Cost [Line Items]
Vesting percentage, restricted shares				24.00%
Restricted Stock [Member] | February 2027 | 2023 Long-Term Incentive Plan [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Compensation Cost [Line Items]
Vesting percentage, restricted shares				52.00%
Performance-Based Restricted Stock Units [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Compensation Cost [Line Items]
Number of units vested				4,500
Restricted shares of common stock issued				50,500
Shares eligible to vest based on performance				75,464
Restricted shares of common stock forfeitured				59,500
Performance-Based Restricted Stock Units [Member] | Executive Officers [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Compensation Cost [Line Items]
Number of units vested		4,472
Performance-Based Restricted Stock Units [Member] | Executive Officers [Member] | 2023 Long-Term Incentive Plan [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Compensation Cost [Line Items]
Maximum number of shares authorized				50,473
Market-Based Restricted Stock Awards [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Compensation Cost [Line Items]
Number of units vested				81,600
Restricted shares of common stock issued			1,610,000	187,200
Compensation expense related to ESPP			$ 117.5	$ 117.5
Restricted shares of common stock forfeitured	1,610,000			1,655,400	[1]
Restricted Stock Awards and PSU Awards [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Compensation Cost [Line Items]
Capitalized compensation cost				$ 22.9
Restricted Stock Units and PSU Units [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Compensation Cost [Line Items]
Compensation expense related to ESPP						$ 129.8	$ 94.9

[1] The change in Mr. Richison’s position from Chief Executive Officer to Co-Chief Executive Officer, effective February 7, 2024, triggered the forfeiture of 1,610,000 shares of restricted stock granted to him on November 23, 2020, in accordance with the terms of the award. As a result, $117.5 million of previously recognized compensation costs that were recorded in reporting periods prior to 2024 were reversed to additional paid-in capital in the consolidated balance sheets and to general and administrative expenses in the consolidated statements of comprehensive income.