Share-Based Compensation (Summary of Stock Option Activity) (Details)	6 Months Ended
Sep. 30, 2020 shares
Number of Options
Beginning balance (in shares)	7,723,302
Granted (in shares)	1,679,338
Exercised (in shares)	(496,078)
Forfeited (in shares)	(422,505)
Ending balance (in shares)	8,484,057
Options vested and expected to vest (in shares)	8,484,057
Options exercisable (in shares)	4,360,312

The number of shares into which fully or partially vested stock options outstanding as of the balance sheet date can be currently converted under the option plan.

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- Definition

The number of shares under options that were cancelled during the reporting period as a result of occurrence of a terminating event specified in contractual agreements pertaining to the stock option plan.

+ References

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

+ References

No definition available.

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

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Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
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A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period.

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No definition available.

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Number of fully vested and expected to vest options outstanding that can be converted into shares under option plan. 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.

+ References

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

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