Additional shares for future issuance under employee stock purchase plan.

No definition available.

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- Definition

Increase in shares reserved for employee stock purchase plan percentage.

+ References

No definition available.

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- Definition

Percentage of shares of company common stock outstanding for increase in shares reserved for issuance under stock plan.

+ References

No definition available.

+ Details

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- Definition

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

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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.

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- Definition

Aggregate number of common shares reserved for future issuance.

+ References

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- Definition

Amount of cost not yet recognized for nonvested award under share-based payment arrangement.

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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.

+ References

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- Definition

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

+ References

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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

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

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- Definition

The difference between the maximum number of shares (or other type of equity) authorized for issuance under the plan (including the effects of amendments and adjustments), and the sum of: 1) the number of shares (or other type of equity) already issued upon exercise of options or other equity-based awards under the plan; and 2) shares (or other type of equity) reserved for issuance on granting of outstanding awards, net of cancellations and forfeitures, if applicable.

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- Definition

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

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- Definition

Number of shares of capital stock issued (purchased by employees) in connection with an employee stock ownership plan.

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Common Stock and Stockholders' Equity - Narrative (Detail) - USD ($) $ in Thousands	1 Months Ended	3 Months Ended		6 Months Ended
	Dec. 31, 2014	Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019
Class of Stock [Line Items]
Stock-based compensation expense		$ 35,367	$ 23,358	$ 66,575	$ 44,546
Unrecognized stock-based compensation cost		36,300		$ 36,300
Stock-based compensation cost expected to be recognized over weighted-average period				3 years
RSUs
Class of Stock [Line Items]
Stock-based compensation cost expected to be recognized over weighted-average period				2 years 10 months 24 days
Unrecognized stock-based compensation cost related to outstanding unvested stock awards		262,500		$ 262,500
PSUs
Class of Stock [Line Items]
Stock-based compensation cost expected to be recognized over weighted-average period				2 years 6 months
Unrecognized stock-based compensation cost related to outstanding unvested stock awards		8,500		$ 8,500
PSUs \| Minimum
Class of Stock [Line Items]
Percentage of total shareholder return				0.00%
PSUs \| Maximum
Class of Stock [Line Items]
Percentage of total shareholder return				200.00%
PSUs \| Share-based Payment Arrangement, One-Year
Class of Stock [Line Items]
Measurement period				1 year
PSUs \| Share-based Payment Arrangement, Two-Year
Class of Stock [Line Items]
Measurement period				2 years
PSUs \| Share-based Payment Arrangement, Three-Year
Class of Stock [Line Items]
Measurement period				3 years
ESPP shares
Class of Stock [Line Items]
Shares reserved for issuance under plan (in shares)	1,000,000
Additional shares available for issuance under the plan (in shares)	500,000
Percentage of common stock shares increased under the plan	1.00%
Shares purchased under plan (in shares)				136,978	117,115
Stock-based compensation expense		$ 1,400	$ 1,500	$ 2,400	$ 2,700
Shares available for issuance (in shares)		2,866,596		2,866,596
2008 Equity Incentive Plan
Class of Stock [Line Items]
Shares available for issuance (in shares)		0		0
2014 Equity Incentive Plan
Class of Stock [Line Items]
Shares reserved for issuance under plan (in shares)	5,000,000
Shares available for issuance (in shares)		12,066,410		12,066,410
Shares available for grant under plan (in shares)	5,184,878
Increase in shares available under plan, percentage of outstanding common stock shares	5.00%