Employee Stock Purchase Plan, Duration Of Offering Period

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- Definition

Employee Stock Purchase Plan, Number Of Six Month Purchasing Periods

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- Definition

Maximum percentage of market-performance based restricted stock units during vesting period.

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- Definition

Restricted Stock Units, Shares Issued Net of Shares for Tax Withholdings

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No definition available.

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- Definition

Share-based Compensation Arrangement by Share-based Payment Award, Weight Of Awarded Shares Against Authorized Maximum

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- Definition

Stockholders Equity Note [Line Items]

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- Definition

Amount of expense for award under share-based payment arrangement. Excludes amount capitalized.

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- Definition

Aggregate number of common shares reserved for future issuance.

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- Definition

Amount of cost not yet recognized for nonvested award under share-based payment arrangement.

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- Definition

Weighted-average period over which cost not yet recognized is expected to be recognized for award under share-based payment arrangement, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days.

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- Definition

Amount of tax benefit for recognition of expense of award under share-based payment arrangement.

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- Definition

Period over which grantee's right to exercise award under share-based payment arrangement is no longer contingent on satisfaction of service or performance condition, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days. Includes, but is not limited to, combination of market, performance or service condition.

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- Definition

The weighted average fair value at grant date for nonvested equity-based awards issued during the period on other than stock (or unit) option plans (for example, phantom stock or unit plan, stock or unit appreciation rights plan, performance target plan).

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- Definition

The number of equity-based payment instruments, excluding stock (or unit) options, that vested during the reporting period.

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- Definition

Fair value of share-based awards for which the grantee gained the right by satisfying service and performance requirements, to receive or retain shares or units, other instruments, or cash.

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- Definition

Number of shares authorized for issuance under share-based payment arrangement.

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- Definition

The difference between the maximum number of shares (or other type of equity) authorized for issuance under the plan (including the effects of amendments and adjustments), and the sum of: 1) the number of shares (or other type of equity) already issued upon exercise of options or other equity-based awards under the plan; and 2) shares (or other type of equity) reserved for issuance on granting of outstanding awards, net of cancellations and forfeitures, if applicable.

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- Definition

Purchase price of common stock expressed as a percentage of its fair value.

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No definition available.

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- Definition

Number of shares used to settle grantee's tax withholding obligation for award under share-based payment arrangement.

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No definition available.

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Stockholders' Equity - Additional Information (Detail) $ / shares in Units, $ in Thousands	12 Months Ended
	Dec. 31, 2021 USD ($) purchase_period $ / shares shares	Dec. 31, 2020 USD ($) $ / shares	Dec. 31, 2019 USD ($) $ / shares	May 31, 2021 shares
Stockholders Equity Note [Line Items]
Stock-based compensation, income tax benefit \| $	$ 13,800	$ 11,900	$ 10,300
Stock-based compensation expense \| $	$ 114,336	98,427	88,184
Restricted Stock Units (RSUs)
Stockholders Equity Note [Line Items]
Vesting period	4 years
Restricted stock units, shares vested and released (shares)	264,655
Restricted stock units, shares withheld for tax payments	78,930
Restricted stock units, net issuance (in shares)	185,725
Vested in period, Fair value \| $	$ 158,800	$ 89,600	$ 112,400
Granted (usd per share) \| $ / shares	$ 600.10	$ 267.24	$ 255.42
Total unamortized compensation cost \| $	$ 116,800
Weighted average period of total unamortized cost	2 years 1 month 6 days
Market Performance Based Restricted Stock Units
Stockholders Equity Note [Line Items]
Vesting period	3 years
Restricted stock units, shares vested and released (shares)	229,877
Restricted stock units, shares withheld for tax payments	104,317
Restricted stock units, net issuance (in shares)	125,560
Vested in period, Fair value \| $	$ 135,600	$ 47,100	$ 47,700
Granted (usd per share) \| $ / shares	$ 658.02
Total unamortized compensation cost \| $	$ 38,500
Weighted average period of total unamortized cost	1 year
Percentage of market-performance based restricted stock units eligible to vest over the vesting period	250.00%
Employee Stock Purchase Plan
Stockholders Equity Note [Line Items]
Number of shares available for grant (shares)	2,194,566
Total unamortized compensation cost \| $	$ 10,400
Weighted average period of total unamortized cost	6 months
ESPP offering period	24 months
Number of offering periods \| purchase_period	4
Purchase price of shares, percent of fair market value	85.00%
Number of shares reserved for issuance (in shares)				4,400,000
Stock-based compensation expense \| $	$ 12,200	$ 10,500	$ 12,100
Stock Incentive Plan 2005
Stockholders Equity Note [Line Items]
Share award ratio	1.9
Number of shares reserved for issuance (in shares)	27,783,379
Number of shares available for grant (shares)	4,244,723