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.

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- Definition

Represents the expense recognized during the period arising from equity-based compensation arrangements (for example, shares of stock, unit, stock options or other equity instruments) with employees, directors and certain consultants qualifying for treatment as employees.

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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

Unrecognized cost of unvested share-based compensation awards.

+ References

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- Definition

Weighted average period over which unrecognized compensation is expected to be recognized for equity-based compensation plans, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

+ References

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- Definition

Unrecognized cost of unvested options awarded to employees as compensation.

+ References

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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.

+ References

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- Definition

The maximum number of shares (or other type of equity) originally approved (usually by shareholders and board of directors), net of any subsequent amendments and adjustments, for awards under the equity-based compensation plan. As stock or unit options and equity instruments other than options are awarded to participants, the shares or units remain authorized and become reserved for issuance under outstanding awards (not necessarily vested).

+ References

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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

Amount of accumulated difference between fair value of underlying shares on dates of exercise and exercise price on options exercised (or share units converted) into shares.

+ References

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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.

+ References

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- Definition

Price of a single share of a number of saleable stocks of a company.

+ References

No definition available.

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- Definition

Expected term of share-based compensation awards, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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- Definition

Weighted average remaining contractual term for fully vested and expected to vest options outstanding, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days. Includes, but is not limited to, unvested options for which requisite service period has not been rendered but that are expected to vest based on achievement of performance condition, if forfeitures are recognized when they occur.

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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 - Additional Information (Detail) - USD ($) $ / shares in Units, $ in Thousands	1 Months Ended	12 Months Ended
	Dec. 31, 2014	Mar. 31, 2019	Mar. 31, 2018	Mar. 31, 2017	Mar. 29, 2019
Class of Stock [Line Items]
Stock-based compensation expense		$ 56,198	$ 40,598	$ 31,946
Shares available for issuance (in shares)		18,240,000	16,799,000
Weighted-average grant-date fair value of options granted (in usd per share)		$ 42.37	$ 21.40	$ 12.75
Intrinsic value of options exercised		$ 62,459	$ 53,200	$ 65,300
Total fair value of RSUs vested		38,200	$ 25,600	$ 17,100
Closing stock price reported (in usd per share)					$ 98.70
Unrecognized stock-based compensation cost related to outstanding unvested stock awards		$ 22,700
Stock-based compensation cost expected to be recognized over weighted-average period		2 years 4 months 24 days
Expected to vest unrecognized stock-based compensation cost related to outstanding unvested stock options		$ 186,900
Stock-based compensation cost expected to be recognized over weighted-average period		6 years 3 months 18 days
Unvested Stock Options
Class of Stock [Line Items]
Stock-based compensation cost expected to be recognized over weighted-average 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%
Common stock purchased under Employee Stock Purchase Plan (in shares)		200,000	200,000	200,000
Stock-based compensation expense		$ 3,600	$ 2,200	$ 1,800
Shares available for issuance (in shares)		2,273,989
Expected term (years)		6 months
2008 Equity Incentive Plan
Class of Stock [Line Items]
Shares available for issuance (in shares)		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)		10,795,889
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%