Adjustment To Additional Paid In Capital, Reclassification Of Share-based Compensation Liability

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- Definition

Share-based compensation arrangement by share-based payment award, current year award vesting period.

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- Definition

Share based compensation arrangement by share based payment award options exercisable nonvested number of shares.

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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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-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (i)
-URI http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901

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- Definition

Amount of cost to be recognized for option under share-based payment arrangement.

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- Definition

Amount of noncash expense for share-based payment arrangement.

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 28
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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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-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
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- Definition

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

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- Definition

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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- 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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-Publisher FASB
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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.

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No definition available.

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- Definition

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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- Definition

Percentage of vesting of award under share-based payment arrangement.

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- Definition

Period from grant date that an equity-based award expires, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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Equity Incentive Plans - Additional Information (Details) - USD ($) $ / shares in Units, $ in Thousands	1 Months Ended	3 Months Ended		6 Months Ended
	Sep. 30, 2018	Oct. 31, 2020	Oct. 31, 2019	Oct. 31, 2020	Oct. 31, 2019
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Unvested stock options exercisable (in shares)		238,994		238,994
Weighted average grant date fair value (in dollars per share)		$ 56.37	$ 54.20	$ 56.37	$ 50.92
Unrecognized stock-based compensation expense related to unvested stock options		$ 38,900		$ 38,900
Unrecognized over a weighted-average period				1 year 9 months 14 days
Non-cash stock based compensation expense				$ 2,500
Reclassification of liability-classified awards		2,702		2,702
Additional Paid-in Capital
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Reclassification of liability-classified awards		2,702		$ 2,702
RSUs
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
RSUs granted (in shares)				668,605
Grant date fair value (in dollars per share)				$ 88.20
RSUs cancelled (in shares)				210,123
Equity settled RSUs
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Unrecognized stock-based compensation expense related to unvested stock options		$ 165,700		$ 165,700
Unrecognized over a weighted-average period				3 years 1 month 13 days
RSUs granted (in shares)		80,839		80,839
Cash Settled Restricted Stock Units R S U
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
RSUs cancelled (in shares)		80,839		80,839
2012 Plan \| Existing Employees
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based compensation payment vesting period	4 years
2012 Plan \| Stock options
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based compensation payment vesting period				4 years
Share-based compensation arrangement by share-based payment award expiration period	10 years
2012 Plan \| RSUs
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
RSUs granted (in shares)				668,605
Grant date fair value (in dollars per share)				$ 88.20
RSUs cancelled (in shares)				210,123
2012 Plan \| RSUs \| New Employees
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based compensation payment vesting period	4 years
2012 Plan \| RSUs \| Existing Employees
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based compensation payment vesting period	4 years
2012 Plan \| Tranche One \| New Employees
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based compensation arrangement by share-based payment award vesting rights percentage	25.00%
2012 Plan \| Tranche One \| Stock options
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based compensation payment vesting period	1 year
Share-based compensation arrangement by share-based payment award vesting rights percentage				25.00%
2012 Plan \| Tranche One \| RSUs \| New Employees
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based compensation arrangement by share-based payment award current year vesting period	1 year
2012 Plan \| Tranche Two \| Stock options
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based compensation payment vesting period				36 months
2012 Plan \| Tranche Two \| RSUs \| New Employees
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based compensation payment vesting period	3 years