Commitments and Contingencies - Schedule of Related-party Rent Expense (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021
Loss Contingencies [Line Items]
Total rent expense	$ 12,137	$ 7,526	$ 23,296	$ 14,104
Center Costs Excluding Depreciation and Amortization
Loss Contingencies [Line Items]
Total rent expense	11,998	7,173	23,018	13,576
General And Administrative Expense
Loss Contingencies [Line Items]
Total rent expense	$ 139	$ 353	$ 278	$ 528