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Stock Option Plans - Additional information (Detail) - USD ($) $ / shares in Units, $ in Millions					3 Months Ended
	Mar. 15, 2023	May 10, 2022	Mar. 15, 2022	Feb. 01, 2022	Mar. 31, 2023	Mar. 31, 2022
Stock Option Plans [Line Items]
Compensation expense related to stock option grants					$ 7.7	$ 5.7
Total intrinsic value of options exercised					77.5	$ 77.4
Total unrecognized compensation cost related to nonvested options					$ 138.2
Weighted average period, years					4 years
Black-Scholes Option Pricing Model [Member]
Stock Option Plans [Line Items]
Weighted average fair value per option for all options					$ 46.25	$ 33.18
Long Term Incentive Plan [Member]
Stock Option Plans [Line Items]
Stock option granted, Share pool		13,500,000
Shares against the pool		3.8
Maximum number of shares available		3,500,000			2,900,000
Number Of Periods Options Expire					7 years
Shares available for grant					11,900,000
Long Term Incentive Plan [Member] | Officer and Key Employees [Member]
Stock Option Plans [Line Items]
Shares available for grant	1,131,000
Long Term Incentive Plan [Member] | Maximum [Member]
Stock Option Plans [Line Items]
Minimum exercise price of stock options, percent of fair market value of a share of common stock on the date of grant					100.00%
2017 Long Term Incentive Plan [Member] | Officer and Key Employees [Member]
Stock Option Plans [Line Items]
Shares available for grant			1,141,000	1,197,000
Stock options granted, exercise percentage, on the third anniversary date of the grant	34.00%		34.00%	34.00%
Stock options granted, exercise percentage, on the fourth anniversary date of the grant	33.00%		33.00%	33.00%
Stock options granted, exercise percentage, on the fifth anniversary date of the grant	33.00%		33.00%	33.00%
2017 Long Term Incentive Plan [Member] | Maximum [Member]
Stock Option Plans [Line Items]
Maximum period for the exercise of stock options, years					7 years	7 years
2017 Long Term Incentive Plan [Member] | Minimum [Member]
Stock Option Plans [Line Items]
Period of service from grant date stock options awarded not subject to forfeiture					2 years	2 years
2017 Long Term Incentive Plan [Member] | Minimum [Member] | Executive Officer [Member]
Stock Option Plans [Line Items]
Minimum age of employee with not subject to award forfeiture on condition compliance					55 years	55 years

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