Property and Equipment, net - Property and Equipment, Net (Details) - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2023	Dec. 31, 2022
Property Plant And Equipment [Line Items]
Property and equipment, gross	$ 253,181	$ 196,246
Less: accumulated depreciation and amortization	(119,396)	(94,294)
Property and equipment, net	$ 133,785	101,952
Surgical instruments
Property Plant And Equipment [Line Items]
Useful life (in years)	4 years
Property and equipment, gross	$ 206,748	158,906
Machinery and equipment
Property Plant And Equipment [Line Items]
Useful life (in years)	7 years
Property and equipment, gross	$ 11,421	9,502
Computer equipment
Property Plant And Equipment [Line Items]
Useful life (in years)	3 years
Property and equipment, gross	$ 5,388	4,753
Office furniture and equipment
Property Plant And Equipment [Line Items]
Useful life (in years)	5 years
Property and equipment, gross	$ 5,547	4,760
Leasehold improvements
Property Plant And Equipment [Line Items]
Useful lives	various
Property and equipment, gross	$ 3,797	2,965
Construction in progress
Property Plant And Equipment [Line Items]
Property and equipment, gross	$ 20,280	$ 15,360