Fair Value Measurements and Investments - Schedule of Reconciliation For Convertible Loan Measured At Fair Value Using Significant Unobservable Inputs (Level 3) (Detail) - Neo Medical SA [Member] $ in Thousands	12 Months Ended
	Dec. 31, 2020 USD ($)
Fair Value Liabilities Measured On Recurring Basis Unobservable Input Reconciliation [Line Items]
Issuance date	$ 5,000
Interest recognized in interest income, net	103
Foreign currency remeasurement recognized in other income (expense), net	176
Unrealized gain (loss) recognized in other comprehensive income (loss)	1,881
Fair Value of convertible loan ending balance	7,160
Amortized cost basis of Neo Medical Convertible Loan at December 31	$ 5,279