Fair Value Measurements - Additional Information (Detail) $ in Millions	Mar. 31, 2021 USD ($)
Lacerta Therapeutics Inc [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Additional investment	$ 1.8

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.

No definition available.

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