Share-Based Compensation - Additional Information (Detail) - $ / shares shares in Thousands	3 Months Ended	9 Months Ended
Sep. 30, 2023	Sep. 30, 2022	Sep. 30, 2023	Sep. 30, 2022
Restricted Stock Units (RSUs)
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Share-based compensation arrangement by share- based payment award equity instruments other than options grants in period			342	345
Share-based compensation arrangement by share-based payment award, equity Instruments other than options, grants in period. Weighted average fair value			$ 113.29	$ 102.65
Share-based compensation arrangement by share-based payment award, award vesting period			3 years	3 years
Share-based compensation arrangement by share-based payment award, award vesting percentage			100.00%	100.00%
Restricted Stock Units (RSUs) \| Non-Employee Directors
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Share-based compensation arrangement by share- based payment award equity instruments other than options grants in period			14	16
Performance Stock Units (PSUs)
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Share-based compensation arrangement by share- based payment award equity instruments other than options grants in period			78	84
Share-based compensation arrangement by share-based payment award, equity Instruments other than options, grants in period. Weighted average fair value			$ 113.24	$ 102.65
Share-based compensation arrangement by share-based payment award, award vesting percentage			100.00%	100.00%
Maximum adjustment factor			200.00%	200.00%
Minimum adjustment factor			50.00%	50.00%
Minimum shares issued			0	0
Employee Stock Purchase Plan
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Stock issued during period, shares, employee stock purchase plans	640	650	640	650
Fair value of the employee stock purchase rights granted	$ 31.56	$ 27.07	$ 31.56	$ 27.07

Maximum adjustment factor allowed under the form of performance share award agreement.

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Minimum adjustment factor allowed under the form of performance share award agreement.

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The minimum number of awards to be issued if minimum performance targets are not achieved.

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Share-based compensation arrangement by share-based payment award, equity instruments other than options, number of common shares awarded upon settlement.

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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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The number of grants made 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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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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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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The weighted average grant-date fair value of options granted during the reporting period as calculated by applying the disclosed option pricing methodology.

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Number of shares issued during the period as a result of an employee stock purchase plan.

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