Percentage of outstanding common shares and preferred shares on fully diluted basis.

No definition available.

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- Definition

Stockholders Equity Note [Line Items]

+ References

No definition available.

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- Definition

Amount of cash inflow from exercise of stock options granted under share-based compensation arrangement.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2A
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- Definition

Period which an employee's right to exercise an award is no longer contingent on satisfaction of either a service condition, market condition or a performance condition, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

+ References

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Period Type:	duration

- 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).

+ References

+ Details

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- Definition

Number of equity instruments other than options outstanding, including both vested and non-vested instruments.

+ References

+ Details

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Balance Type:	na
Period Type:	instant

- Definition

Net number of share options (or share units) granted during the period.

+ References

+ Details

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- Definition

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

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-Publisher FASB
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- Definition

For net-share settlement of share-based awards when the employer settles employees' income tax withholding obligations, this element represents the number of shares the employees use to repay the employer.

+ References

No definition available.

+ Details

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- Definition

Number of shares (or other type of equity) issued during the period as a result of any equity-based compensation plan other than an employee stock ownership plan (ESOP), net of any shares forfeited. Shares issued could result from the issuance of restricted stock, the exercise of stock options, stock issued under employee stock purchase plans, and/or other employee benefit plans.

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- Definition

Number of share options (or share units) exercised during the current period.

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Equity - Incentive Equity Awards - Additional Information (Detail) - USD ($) $ in Thousands						1 Months Ended	3 Months Ended
	Feb. 01, 2019	Nov. 01, 2018	May 14, 2018	Mar. 12, 2018	Feb. 01, 2018	Sep. 30, 2018	Mar. 31, 2019	Mar. 31, 2018
Stockholders Equity Note [Line Items]
Stock options, outstanding							16,837,051
Shares issued, exercise of stock options							3,838,739	782,553
Proceeds from exercise of stock options, net of transaction costs							$ 15,456	$ 1,548
Restricted Stock Units (RSUs)
Stockholders Equity Note [Line Items]
Restricted stock units, outstanding							9,341,393
Percentage of outstanding shares on a fully diluted basis							2.00%
Restricted Stock Units (RSUs) \| Stock Incentive Plan 2011
Stockholders Equity Note [Line Items]
Stock units, Granted	757,800		190,034		1,305,575
Stock units, Vesting Period	3 years		3 years		3 years
Restricted Stock Units (RSUs) \| Stock Incentive Plan 2011 \| Vesting Period
Stockholders Equity Note [Line Items]
Stock units, Granted		90,000		970,000
Stock units, Vesting Period				3 years
Restricted Stock Units (RSUs) \| Stock Incentive Plan 2011 \| Vest over a three year period
Stockholders Equity Note [Line Items]
Shares issued, related to the vesting of RSUs							387,715
Treasury shares for settlement of employee tax obligations							139,928
Restricted Stock Units (RSUs) \| Employees \| Stock Incentive Plan 2011
Stockholders Equity Note [Line Items]
Stock units, Granted	580,000
Stock Options
Stockholders Equity Note [Line Items]
Percentage of outstanding shares on a fully diluted basis							4.00%
Stock Options \| Stock Incentive Plan 2011
Stockholders Equity Note [Line Items]
Stock options, Granted	1,193,400		286,536		2,205,075
Stock units, Vesting Period	4 years				4 years
Performance-Based RSUs
Stockholders Equity Note [Line Items]
Shares issued, related to the vesting of RSUs						2,499,750
Treasury shares for settlement of employee tax obligations						764,819