Supplemental Condensed Balance Sheet Information - Schedule of Property and Equipment, net (Details) - USD ($) $ in Thousands	Sep. 30, 2024	Dec. 31, 2023
Property, Plant and Equipment [Line Items]
Property and equipment, gross	$ 75,705	$ 65,074
Accumulated depreciation and amortization	(30,384)	(24,635)
Property and equipment, net	45,321	40,439
Leasehold improvements
Property, Plant and Equipment [Line Items]
Property and equipment, gross	37,042	32,490
Furniture, fixtures and equipment
Property, Plant and Equipment [Line Items]
Property and equipment, gross	2,974	2,607
Medical equipment
Property, Plant and Equipment [Line Items]
Property and equipment, gross	10,343	8,566
Computer equipment
Property, Plant and Equipment [Line Items]
Property and equipment, gross	3,818	3,285
Signs
Property, Plant and Equipment [Line Items]
Property and equipment, gross	227	153
Automobiles
Property, Plant and Equipment [Line Items]
Property and equipment, gross	101	59
Software
Property, Plant and Equipment [Line Items]
Property and equipment, gross	8,394	7,829
Construction-in-progress
Property, Plant and Equipment [Line Items]
Property and equipment, gross	5,564	2,985
Finance Right of Use Assets
Property, Plant and Equipment [Line Items]
Property and equipment, gross	$ 7,242	$ 7,100