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.

+ References

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- Definition

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

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (c)(1)(ii)
-URI https://asc.fasb.org/extlink&oid=128089324&loc=d3e5070-113901

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (c)(1)(i)
-URI https://asc.fasb.org/extlink&oid=128089324&loc=d3e5070-113901

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- Definition

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

+ References

+ Details

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- Definition

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.

+ References

No definition available.

+ Details

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- Definition

The floor of a customized range of exercise prices for purposes of disclosing shares potentially issuable under outstanding stock option awards on all stock option plans and other required information pertaining to awards in the customized range.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (g)
-URI https://asc.fasb.org/extlink&oid=128089324&loc=d3e5070-113901

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- Definition

The ceiling of a customized range of exercise prices for purposes of disclosing shares potentially issuable under outstanding stock option awards on all stock option plans and other required information pertaining to awards in the customized range.

+ References

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- Definition

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

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (e)(1)
-URI https://asc.fasb.org/extlink&oid=128089324&loc=d3e5070-113901

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Stock-Based Compensation and Stock Options - Stock Options Outstanding and Exercisable (Detail) - $ / shares	3 Months Ended
	Jun. 30, 2022	Mar. 31, 2022	Jun. 30, 2021	Mar. 31, 2021
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Number of Outstanding Options	722,343	723,876	846,625	937,158
Weighted Average Remaining Contractual Life	3 years 3 months 18 days
Outstanding Options – Weighted Average Exercise Price	$ 90.94	$ 84.55	$ 68.50	$ 64.28
Exercisable Options – Number of Exercisable Options	338,791
Exercisable Options – Weighted Average Exercise Price	$ 63.61
Range of Exercise Price, $22.07 to $57.35 [Member]
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Range of Exercise Price, lower limit	22.07
Range of Exercise Price, upper limit	$ 59.32
Number of Outstanding Options	213,617
Weighted Average Remaining Contractual Life	2 years 3 months 25 days
Outstanding Options – Weighted Average Exercise Price	$ 48.76
Exercisable Options – Number of Exercisable Options	187,864
Exercisable Options – Weighted Average Exercise Price	$ 48.03
Range of Exercise Price, $57.36 to $77.93 [Member]
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Range of Exercise Price, lower limit	59.33
Range of Exercise Price, upper limit	$ 87.49
Number of Outstanding Options	191,401
Weighted Average Remaining Contractual Life	3 years 1 month 9 days
Outstanding Options – Weighted Average Exercise Price	$ 77.92
Exercisable Options – Number of Exercisable Options	99,870
Exercisable Options – Weighted Average Exercise Price	$ 77.16
Range of Exercise Price, $77.94 to $88.22 [Member]
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Range of Exercise Price, lower limit	87.50
Range of Exercise Price, upper limit	$ 148.89
Number of Outstanding Options	221,425
Weighted Average Remaining Contractual Life	3 years 8 months 1 day
Outstanding Options – Weighted Average Exercise Price	$ 105.87
Exercisable Options – Number of Exercisable Options	51,057
Exercisable Options – Weighted Average Exercise Price	$ 94.44
Range of Exercise Price, $88.23 to $197.16 [Member]
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Range of Exercise Price, lower limit	148.90
Range of Exercise Price, upper limit	$ 197.16
Number of Outstanding Options	95,900
Weighted Average Remaining Contractual Life	5 years 10 days
Outstanding Options – Weighted Average Exercise Price	$ 176.39
Exercisable Options – Number of Exercisable Options	0
Exercisable Options – Weighted Average Exercise Price	$ 0