Balance Sheet Components - Narrative (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022
Property, Plant and Equipment [Line Items]
Inventory, finished goods, gross	$ 18,800	$ 15,600
Inventory, work in process, gross	1,400	1,700
Property and equipment, gross	31,246	25,771
Depreciation expense	5,400	$ 3,400
Construction in Progress, Surgical Placement Instrument Set
Property, Plant and Equipment [Line Items]
Property and equipment, gross	400
Construction in Progress, Santa Clara Lease
Property, Plant and Equipment [Line Items]
Property and equipment, gross	$ 3,500