Fair Value Measurements and Investments - Schedule of Valuation Methodology and Unobservable Inputs for Level 3 Assets and Liabilities Measured at Fair Value (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021
Spinal Kinetics [Member] | Fair Value, Inputs, Level 3 [Member]
Fair Value Liabilities Measured On Recurring Basis Unobservable Input Reconciliation [Line Items]
Spinal Kinetics contingent consideration at January 1	$ 17,200	$ 35,400
Decrease in fair value recognized in acquisition-related amortization and remeasurement	(17,200)	(3,200)
Payment made		(15,000)
Spinal Kinetics contingent consideration at December 31		$ 17,200
Neo Medical [Member]
Fair Value Liabilities Measured On Recurring Basis Unobservable Input Reconciliation [Line Items]
Neo Medical Convertible Loans	$ 7,140
Fair value discount rate	18.00%
Fair value implied volatility	73.90%