Summary of Stock Option Activity (Detail) - Stock Option Awards - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	6 Months Ended
Jun. 30, 2024
Options outstanding, shares
Beginning Balance	1,294
Granted	10
Exercised	(695)
Forfeited/Expired	(17)
Ending Balance	592
Exercisable as of June 30, 2024	302
Expected to vest as of June 30, 2024	290
Total	592
Weighted Average Exercise Price Per Share
Beginning Balance	$ 286.78
Granted	1,594.74
Exercised	220.77
Forfeited/Expired	447.47
Ending Balance	379.99
Exercisable as of June 30, 2024	344.16
Expected to vest as of June 30, 2024	417.41
Total	$ 379.99
Aggregate Intrinsic Value
Exercised	$ 612,055
Exercisable as of June 30, 2024	312,250
Expected to vest as of June 30, 2024	279,809
Total	$ 592,059
Weighted Average Remaining Contractual Term (Years)
Exercisable as of June 30, 2024	6 years 2 months 12 days
Expected to vest as of June 30, 2024	7 years 8 months 12 days
Total	7 years

Share-based compensation arrangement by share-based payment award, options, aggregate intrinsic value.

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Aggregate intrinsic value of share options expected to vest at the date of the latest statement of financial position. Excludes options already vested.

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Share options expected to vest at the date of the latest statement of financial position. In other words, unvested shares, net of expected forfeitures.

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Weighted average exercise price of share options expected to vest at the date of the latest statement of financial position. Excludes options already vested.

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Weighted average remaining contractual term of share options expected to vest at the date of the latest statement of financial position. Excludes options already vested.

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Share-based compensation arrangement by share-based payment award options outstanding weighted average remaining contractual term.

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The number of shares into which fully or partially vested stock options outstanding as of the balance sheet date can be currently converted under the option plan.

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The weighted-average price as of the balance sheet date at which grantees can acquire the shares reserved for issuance on vested portions of options outstanding and currently exercisable under the stock option plan.

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- Definition

Amount of accumulated difference between fair value of underlying shares on dates of exercise and exercise price on options exercised (or share units converted) into shares.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 718
-SubTopic 10
-Name Accounting Standards Codification
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-Paragraph 2
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- Definition

For presentations that combine terminations, the number of shares under options that were cancelled during the reporting period as a result of occurrence of a terminating event specified in contractual agreements pertaining to the stock option plan or that expired.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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- Definition

Weighted average price of options that were either forfeited or expired.

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- Definition

Gross number of share options (or share units) granted during the period.

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- Definition

Number of options outstanding, including both vested and non-vested options.

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- Definition

A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period.

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Weighted average price at which grantees can acquire the shares reserved for issuance under the stock option plan.

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- Definition

Amount by which current fair value of underlying stock exceeds exercise price of fully vested and expected to vest options outstanding. Includes, but is not limited to, unvested options for which requisite service period has not been rendered but that are expected to vest based on achievement of performance condition, if forfeitures are recognized when they occur.

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Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 718
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- Definition

Number of fully vested and expected to vest options outstanding that can be converted into shares under option plan. Includes, but is not limited to, unvested options for which requisite service period has not been rendered but that are expected to vest based on achievement of performance condition, if forfeitures are recognized when they occur.

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Weighted-average exercise price, at which grantee can acquire shares reserved for issuance, for fully vested and expected to vest options outstanding. Includes, but is not limited to, unvested options for which requisite service period has not been rendered but that are expected to vest based on achievement of performance condition, if forfeitures are recognized when they occur.

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Weighted average price at which option holders acquired shares when converting their stock options into shares.

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- Definition

Weighted average per share amount at which grantees can acquire shares of common stock by exercise of options.

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Amount of difference between fair value of the underlying shares reserved for issuance and exercise price of vested portions of options outstanding and currently exercisable.

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Weighted average remaining contractual term for vested portions of options outstanding and currently exercisable or convertible, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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Weighted average remaining contractual term for fully vested and expected to vest options outstanding, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days. Includes, but is not limited to, unvested options for which requisite service period has not been rendered but that are expected to vest based on achievement of performance condition, if forfeitures are recognized when they occur.

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- Definition

Number of share options (or share units) exercised during the current period.

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Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Name Accounting Standards Codification
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