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Fair Value Measurements - Additional Information (Detail) $ in Thousands	12 Months Ended
	Mar. 31, 2021 USD ($)	Mar. 31, 2020 USD ($)	Jun. 30, 2021 USD ($)
Fair Value Disclosures [Line Items]
Fair value of options	$ 25,711	$ 33,789
Fair value of options	61,500		$ 62,400
Liability Instruments Measured At Fair Value [Member]
Fair Value Disclosures [Line Items]
Fair value of options	$ 62,400	$ 95,900
Minimum | Measurement Input, Discount Rate [Member]
Fair Value Disclosures [Line Items]
Discount rate	0.06		0.11
Maximum | Measurement Input, Discount Rate [Member]
Fair Value Disclosures [Line Items]
Discount rate	0.17		0.12

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Equity interest option to third party purchaser.

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- Definition

Value of input used to measure debt instrument, including, but not limited to, convertible and non-convertible debt.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 820
-SubTopic 10
-Section 50
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- Definition

Fair value of options vested. Excludes equity instruments other than options, for example, but not limited to, share units, stock appreciation rights, restricted stock.

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-Publisher FASB
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