Common Stock - Additional Information (Detail) - USD ($)	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020	Jul. 31, 2024	Jan. 01, 2024
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Dividends declared and paid, per share	$ 0.8	$ 0.8	$ 0.8
Stock repurchase programs authorized to purchase, value	$ 824,360,000					$ 1,000,000,000	$ 422,880,000
Stock repurchased, value	674,980,000	$ 552,608,000	$ 832,918,000
Compensation cost recognized	$ 99,349,000	87,720,000	85,378,000
Restricted stock units granted	3,000
Weighted-average grant date fair value	$ 44.58
Forfeitures utilization term	5 years
Total in-the-money value of all stock options exercised during the year	$ 185,300,000	$ 57,100,000	49,400,000
Weighted average grant-date fair value of restricted stock units	$ 42.56	$ 39.22
Revision of Prior Period, Accounting Standards Update, Adjustment
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
New accounting adoption impact on income taxes and net income	$ 15,900,000	$ 4,700,000	636,000
New accounting adoption impact on executive compensation	10,200,000
Employee Stock Option
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based compensation cost recognized, pre-tax charge	54,300,000	64,200,000	66,200,000
Restricted Stock
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based compensation cost recognized, after-tax	45,100,000	$ 23,500,000	$ 19,100,000
Unrecognized compensation cost	$ 149,400,000
Unrecognized compensation cost vesting period	2 years 3 months 18 days
Unvested Stock option
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Unrecognized compensation cost	$ 149,400,000
Unrecognized compensation cost vesting period	2 years 3 months 18 days
Income Tax Withholding Obligations
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock repurchased, shares	375,248	164,649	153,305
Stock repurchased, value	$ 72,200,000	$ 22,900,000	$ 22,000,000
Stock Repurchase Programs Twenty Twenty Three
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock repurchased, shares	2,982,906	3,855,046
Stock repurchased, value	$ 598,500,000	$ 524,500,000
Total number of shares cancelled		2,356
Stock Repurchase Programs Twenty Twenty Two
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock repurchase programs authorized to purchase, value			$ 1,400,000,000
Stock repurchased, shares			6,666,547
Stock repurchased, value			$ 810,900,000
Total number of shares cancelled			8,467
Stock Repurchase Programs Twenty Twenty One
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock repurchase programs authorized to purchase, value	$ 1,000,000,000
Total number of shares cancelled	107
Stock Incentive Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Weighted-average grant date fair value of option granted, number of shares					2,200,000
Additional stock options granted	0
2020 Stock Incentive Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Weighted-average grant date fair value of option granted, number of shares	3,000	1,600,000	1,500,000
Total number of shares cancelled	0
Weighted-average grant date fair value	$ 44.58	$ 41.88	$ 45.63
2020 Stock Incentive Plan | Restricted Stock Units (RSUs)
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Restricted stock units granted	514,765	255,085	207,253
Weighted average grant-date fair value of restricted stock units	$ 181.05	$ 118.14	$ 142.7
2020 Stock Incentive Plan | Performance Based Restricted Stock Units [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Restricted stock units granted	63,362	93,606	65,768
2010 Employees' Restricted Stock Purchase Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Additional stock options granted	0
Stock Incentive Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Options are exercisable, in period				4 years
Employee Stock Purchase Plan Twenty Zero Five
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Restricted stock units granted	81,146	100,507	127,538
Common Stock remain available for issuance	1,100,000
Stock issued during period, net of cancellations	1,900,000
Class B
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Common Stock, shares issued	57,726,557	59,930,083
Issuance upon conversion of shares	24,386,891
Class B | Stock Incentive Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares reserved	35,600,000
Class B | 2020 Stock Incentive Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Common Stock, shares issued					18,100,000
Common Stock remain available for issuance	8,620,000
Class B | Employee Stock Purchase Plan Twenty Zero Five
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares reserved	3,000,000
Special Dividend 2024
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Dividends declared and paid	$ 53,300,000
Special Dividend 2023
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Dividends declared and paid		$ 55,500,000
Special Dividends 2022
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Dividends declared and paid			$ 58,400,000