Stock-Based Compensation - Additional Information (Detail) - USD ($)	1 Months Ended						12 Months Ended
	Jul. 31, 2023	Jan. 31, 2023	Jul. 31, 2022	Jan. 31, 2022	Jul. 31, 2021	Jan. 31, 2021	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Share-based Compensation Arrangement by Share-based Payment Award
Allocated share-based compensation expense.							$ 57,682,000	$ 48,228,000	$ 45,643,000
Total shareholder return performance measurement period							3 years
Restricted stock unit awards granted							728,000	660,000	447,000
Weighted average grant date fair value of restricted stock units granted							$ 105.05	$ 108.74	$ 115.51
Stock price							$ 104.15	$ 112.12	$ 113.48
Tax benefit from compensation expense							$ 10,397,000	$ 11,493,000	$ 14,389,000
Total unrecognized expense related to non-vested restricted stock unit awards and stock options							$ 73,700,000
Unrecognized expense related to non-vested restricted stock unit awards and stock options expected to be recognized over weighted average period, in years							2 years 6 months
Maximum percent of shares allowed to purchase							10.00%
Fair market value							$ 25,000
Maximum number of shares allowed to purchase							6,000
Percentage of common stock price paid							85.00%
Common stock issued to employees	200,000	200,000	200,000	200,000	100,000	100,000
Value of common stock issued to employees per share	$ 94.64		$ 76.12		$ 113.87		$ 92.25	$ 74.25	$ 139
Number of shares available for grant							4,353,000	5,062,000	5,713,000	6,123,000
Retirement Agreement [Member]
Share-based Compensation Arrangement by Share-based Payment Award
Allocated share-based compensation expense.							$ 5,900,000
Employee Stock Option [Member]
Share-based Compensation Arrangement by Share-based Payment Award
Cash received from employees, employee stock options exercises							2,200,000	$ 900,000	$ 3,100,000
Tax benefit from compensation expense							$ 200,000	$ 100,000	$ 400,000
Percentage of common stock price paid							100.00%
Employee Stock Option [Member] | Maximum [Member]
Share-based Compensation Arrangement by Share-based Payment Award
Period of stock granted to employees and executive officers vest in equal installments							7 years
Employee Stock Option [Member] | Measurement Input, Expected Dividend Payment [Member]
Share-based Compensation Arrangement by Share-based Payment Award
Estimated annual dividend amount per share							$ 0.44		$ 0.4
Restricted Stock Units
Share-based Compensation Arrangement by Share-based Payment Award
Restricted stock unit awards granted							728,000	660,000	447,000
Restricted Stock Units | Employees
Share-based Compensation Arrangement by Share-based Payment Award
Period of stock granted to employees and executive officers vest in equal installments							4 years
Percentage of awards vesting on the first anniversary of grant date							100.00%
Restricted Stock Units | Director
Share-based Compensation Arrangement by Share-based Payment Award
Period of stock granted to employees and executive officers vest in equal installments							1 year
TSR Performance-Based Restricted Stock Units
Share-based Compensation Arrangement by Share-based Payment Award
Total shareholder return performance measurement period							3 years
Minimum years of service for retirement to be eligible for PRSUs							10 years
Restricted stock unit awards granted							100,000	100,000	100,000
Weighted average grant date fair value of restricted stock units granted							$ 139.04	$ 101.06	$ 125.02
Stock price							104.12	112.12	113.48
TSR Performance-Based Restricted Stock Units | Measurement Input, Expected Dividend Payment [Member]
Share-based Compensation Arrangement by Share-based Payment Award
Estimated annual dividend amount per share							$ 0.44	$ 0.44	$ 0.4
TSR Performance-Based Restricted Stock Units | Share-based Compensation Award, Tranche One
Share-based Compensation Arrangement by Share-based Payment Award
Percentage of vesting of target shares upon performance achieved							0.00%
TSR Performance-Based Restricted Stock Units | Share-based Compensation Award, Tranche Two
Share-based Compensation Arrangement by Share-based Payment Award
Percentage of vesting of target shares upon performance achieved							200.00%
Employee Stock Purchase Plan
Share-based Compensation Arrangement by Share-based Payment Award
Number of shares available for grant							3,500,000
Employee Stock Purchase Plan | Minimum [Member]
Share-based Compensation Arrangement by Share-based Payment Award
Period of stock granted to employees and executive officers vest in equal installments							4 years
PBIT Performance-Based Restricted Stock Units
Share-based Compensation Arrangement by Share-based Payment Award
Restricted stock unit awards granted							100,000	100,000	100,000
Weighted average grant date fair value of restricted stock units granted							$ 102.91	$ 110.84	$ 113.65
Service-Based Restricted Stock Units | Employees
Share-based Compensation Arrangement by Share-based Payment Award
Restricted stock unit awards granted							500,000	400,000	300,000
Weighted average grant date fair value of restricted stock units granted							$ 102.45	$ 109.42	$ 114.16
Service-Based Restricted Stock Units | Non Employees
Share-based Compensation Arrangement by Share-based Payment Award
Weighted average grant date fair value of restricted stock units granted							$ 90.5	$ 105.93	$ 128.7
Service-Based Restricted Stock Units | Executive Officer
Share-based Compensation Arrangement by Share-based Payment Award
Restricted stock unit awards granted							100,000	100,000	100,000
TERService Based Stock Options | Non Employee Directors
Share-based Compensation Arrangement by Share-based Payment Award
Restricted stock unit awards granted							100,000	100,000	100,000
Service Based Stock Options | Executive Officer
Share-based Compensation Arrangement by Share-based Payment Award
Weighted average grant date fair value of restricted stock units granted							$ 41.23	$ 39.01	$ 36.6