Fair value of common stock by applying discount for lack of marketability.

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- Definition

Investment measured at fair value using fair value option.

+ References

No definition available.

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- Definition

Amount of liability recognized arising from contingent consideration in a business combination.

+ References

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- Definition

Fair value of contingent consideration in a business combination that is classified in shareholders' equity.

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- Definition

The price per share of the conversion feature embedded in the debt instrument.

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- Definition

Fair value, after the effects of master netting arrangements, of a financial liability or contract with one or more underlyings, notional amount or payment provision or both, and the contract can be net settled by means outside the contract or delivery of an asset. Includes liabilities not subject to a master netting arrangement and not elected to be offset.

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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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Fair Value Measurement - Additional Information (Detail) $ / shares in Units, $ in Millions	Jun. 30, 2022 USD ($)	Dec. 31, 2021 USD ($)	Jun. 30, 2021 $ / shares	Jun. 30, 2021 € / shares	May 14, 2021 USD ($)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Debt conversion price \| (per share)			$ 1,654	€ 1,350
Fair value of the contingent milestone and royalty liabilities	$ 0.1	$ 0.1
Fair value of common stock by applying discount for lack of marketability	5.00%	5.00%
TryptageniX Inc. [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair value of the contingent milestone and royalty liabilities	$ 0.8	$ 0.9
Common Stock [Member] \| IntelGenx [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Investment measured at fair value as per fair value option					$ 3.0
Warrant [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Investment measured at fair value as per fair value option		1.2
Warrant [Member] \| IntelGenx [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Investment measured at fair value as per fair value option					1.2
Additional Warrants [Member] \| IntelGenx [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Investment measured at fair value as per fair value option					$ 8.2
Level 3 [Member] \| Neuronasal Inc [Member] \| Warrant [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair value of warrant liability	0.3	0.3
Contingent Milestone [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair value of the contingent milestone and royalty liabilities	1.4	1.5
Royalty Liabilities [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair value of the contingent milestone and royalty liabilities	$ 1.4	$ 1.5