Revenue Recognition - Percentages By Source of Net Operating Revenue (Details) - Customer Concentration Risk	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Revenue from Contract with Customer Benchmark | Commercial insurers
Concentration Risk [Line Items]
Concentration risk percentage	70.00%	69.00%	69.00%
Revenue Benchmark
Concentration Risk [Line Items]
Concentration risk percentage	100.00%	100.00%	100.00%
Revenue Benchmark | Government payers
Concentration Risk [Line Items]
Concentration risk percentage	16.00%	17.00%	17.00%
Revenue Benchmark | Patient
Concentration Risk [Line Items]
Concentration risk percentage	14.00%	14.00%	14.00%