Summary of Significant Accounting Policies - Percentage of Patient Accounts Receivable by Payor (Details) - Customer concentration risk - Accounts Receivable	12 Months Ended
Dec. 31, 2022	Dec. 31, 2021
Concentration Risk [Line Items]
Concentration risk percentage	100.00%	100.00%
Medicare
Concentration Risk [Line Items]
Concentration risk percentage	65.60%	60.30%
Medicaid
Concentration Risk [Line Items]
Concentration risk percentage	5.20%	7.50%
Managed Care, Commercial, and Other
Concentration Risk [Line Items]
Concentration risk percentage	29.20%	32.20%

For an entity that discloses a concentration risk in relation to quantitative amount, which serves as the "benchmark" (or denominator) in the equation, this concept represents the concentration percentage derived from the division.

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
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