Equity-Based Compensation - Schedule of Equity-based Compensation Expense on Statement of Operations (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020
Share-based Payment Arrangement, Expensed and Capitalized, Amount [Line Items]
Total equity-based compensation expense	$ 30,887	$ 350	$ 62,674	$ 676
Selling, General and Administrative Expenses
Share-based Payment Arrangement, Expensed and Capitalized, Amount [Line Items]
Total equity-based compensation expense	28,430	350	53,651	676
Medical Expenses
Share-based Payment Arrangement, Expensed and Capitalized, Amount [Line Items]
Total equity-based compensation expense	$ 2,457	$ 0	$ 9,023	$ 0