Employee Stock Purchase Plan, Maximum Percentage of Compensation to Purchase Shares by Eligible Participants

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- Definition

Employee Stock Purchase Plan, Minimum Percentage of Common Stock Fair Value Defined to Purchase Shares by Eligible Participants

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- Definition

Employee Stock Purchase Plan, Number of Exercise Periods

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- Definition

Employee Stock Purchase Plan, Term of Exercise Period

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- Definition

Employee Stock Purchase Plan, Term of Offering Period

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- Definition

Share-based Compensation Arrangement by Share-based Payment Award, Value of Shares Authorized

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- Definition

Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Expected Volatility, Market Capitalization

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- Definition

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

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- Definition

Number of shares of equity interests issued or issuable to acquire entity.

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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 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

Amount of cash paid to settle liability for award under share-based payment arrangement.

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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

The estimated dividend rate (a percentage of the share price) to be paid (expected dividends) to holders of the underlying shares over the option's term.

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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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- Definition

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

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Number of shares issued under share-based payment arrangement.

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- Definition

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

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Equity Compensation - Additional Information (Details)		3 Months Ended		12 Months Ended
Equity Compensation - Additional Information (Details)	Mar. 31, 2021 shares	Apr. 30, 2021 USD ($) period shares	Apr. 30, 2020 USD ($)	Jan. 31, 2021 USD ($) shares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Allocated share-based compensation expense		$ 115,800,000	$ 98,200,000
Settlement of liability-classified restricted stock units		0	$ 28,700,000
Market capitalization		$ 2,000,000,000.0
Award vesting period		1 year
Expected dividend yield (in percentage)		0.00%
1998 Employee Qualified Stock Purchase Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Percentage of compensation that eligible employees can use to purchase common stock, maximum		15.00%
Percentage of fair market value eligible employees can purchase common stock, minimum		85.00%
Number of exercise period \| period		4
Term of exercise period		6 months
Term of offering period		24 months
Expected dividend yield (in percentage)		0.00%	0.00%
Storm UK Holdco Limited
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Business acquisition, equity interest issued or issuable, number of shares \| shares	9,277
Common stock and additional paid-in capital
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Settlement of liability-classified restricted stock units		$ 0	$ 28,700,000
Restricted Stock Units (RSUs) and Performance Shares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Awards vested in period, fair value		$ 148,800,000	111,400,000
Awards granted in period (in shares) \| shares		1,582,800
Restricted Stock Units (RSUs)
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Awards granted in period (in shares) \| shares		1,300,000
Allocated share-based compensation expense		$ 89,600,000	76,900,000
Performance Stock Units
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Awards granted in period (in shares) \| shares		200,000
Allocated share-based compensation expense		$ 11,800,000	$ 7,400,000
Award vesting period		3 years
Expected dividend yield (in percentage)		0.00%	0.00%
Performance Stock Units \| Share-based Compensation Award, Tranche One
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
PSU annual vesting percentage		33.33%
Performance Stock Units \| Share-based Compensation Award, Tranche Two
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
PSU annual vesting percentage		33.33%
Performance Stock Units \| Share-based Compensation Award, Tranche Three
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
PSU annual vesting percentage		33.33%
Performance Stock Units \| Certain employees
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Awards granted in period (in shares) \| shares		96,564
Common Stock
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Allocated share-based compensation expense		$ 2,600,000	$ 0
Common Stock \| Spacemaker
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Value of shares authorized				$ 4,900,000
Shares of common stock reserved for issuance (in shares) \| shares		16,786
Restricted Stock \| Spacemaker
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Award vesting period				3 years
Shares issued in period (in shares) \| shares				73,632