Revenue Recognition and Receivables - Schedule of Other Receivables and Advances (Details) - USD ($) $ in Thousands	Dec. 31, 2020	Dec. 31, 2019
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total accounts receivable	$ 53,691	$ 60,521
Medicaid
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total accounts receivable	17,354	21,998
Medicare
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total accounts receivable	14,273	11,811
Managed Care
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total accounts receivable	8,021	9,103
Private Pay and other
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total accounts receivable	$ 14,043	$ 17,609