Accounts Receivable and Notes Receivable - Accounts Receivable (Details) - USD ($) $ in Thousands	Mar. 31, 2022	Dec. 31, 2021
Accounts, Notes, Loans and Financing Receivable [Line Items]
Accounts receivable	$ 24,513	$ 20,007
Oral drug accounts receivable
Accounts, Notes, Loans and Financing Receivable [Line Items]
Accounts receivable	2,535	2,097
Capitated accounts receivable
Accounts, Notes, Loans and Financing Receivable [Line Items]
Accounts receivable	721	665
FFS accounts receivable
Accounts, Notes, Loans and Financing Receivable [Line Items]
Accounts receivable	15,518	12,530
Clinical trials accounts receivable
Accounts, Notes, Loans and Financing Receivable [Line Items]
Accounts receivable	1,849	1,823
Other trade receivables
Accounts, Notes, Loans and Financing Receivable [Line Items]
Accounts receivable	$ 3,890	$ 2,892