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Investments and Fair Value Instruments - Summary of Changes in Fair Value and Other Adjustments of Liabilities (Detail) - Level 3 [Member] $ in Thousands	9 Months Ended
	Sep. 30, 2023 USD ($)
Fair Value Liabilities Measured On Recurring Basis Unobservable Input Reconciliation [Line Items]
Beginning Balance	$ 2,806
Initial recognition	6,810
Change in fair value and other adjustments	(5,780)
Ending Balance	3,836
March 2023 Options - Series A [Member]
Fair Value Liabilities Measured On Recurring Basis Unobservable Input Reconciliation [Line Items]
Beginning Balance	0
Initial recognition	4,324
Change in fair value and other adjustments	(2,934)
Ending Balance	1,390
March 2023 Options - Series B [Member]
Fair Value Liabilities Measured On Recurring Basis Unobservable Input Reconciliation [Line Items]
Beginning Balance	0
Initial recognition	2,274
Change in fair value and other adjustments	(2,090)
Ending Balance	184
March 2023 Placement Agent Options [Member]
Fair Value Liabilities Measured On Recurring Basis Unobservable Input Reconciliation [Line Items]
Beginning Balance	0
Initial recognition	212
Change in fair value and other adjustments	(146)
Ending Balance	66
August 2022 Options [Member]
Fair Value Liabilities Measured On Recurring Basis Unobservable Input Reconciliation [Line Items]
Beginning Balance	767
Initial recognition	0
Change in fair value and other adjustments	(575)
Ending Balance	192
August 2022 Placement Agent Options [Member]
Fair Value Liabilities Measured On Recurring Basis Unobservable Input Reconciliation [Line Items]
Beginning Balance	39
Initial recognition	0
Change in fair value and other adjustments	(35)
Ending Balance	4
Contingent Liabilities [Member]
Fair Value Liabilities Measured On Recurring Basis Unobservable Input Reconciliation [Line Items]
Beginning Balance	2,000
Initial recognition	0
Change in fair value and other adjustments	0
Ending Balance	$ 2,000

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Amount of increase (decrease) of financial instrument classified as a liability measured using unobservable inputs that reflect the entity's own assumption about the assumptions market participants would use in pricing.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Name Accounting Standards Codification
-Section 50
-Paragraph 2
-Subparagraph (c)
-SubTopic 10
-Topic 820
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147482106/820-10-50-2

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-Section 50
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-Publisher FASB
-URI https://asc.fasb.org//1943274/2147482106/820-10-50-2

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