Quarterly report pursuant to Section 13 or 15(d)

Significant Accounting Policies - Percentage of Net Service Revenue Earned by Category of Payor (Details)

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Significant Accounting Policies - Percentage of Net Service Revenue Earned by Category of Payor (Details)
3 Months Ended 6 Months Ended
Jun. 30, 2022
Jun. 30, 2021
Jun. 30, 2022
Jun. 30, 2021
Home health services        
Disaggregation of Revenue [Line Items]        
Percentage of net service revenue 100.00% 100.00% 100.00% 100.00%
Hospice services        
Disaggregation of Revenue [Line Items]        
Percentage of net service revenue 100.00% 100.00% 100.00% 100.00%
Home and community-based services        
Disaggregation of Revenue [Line Items]        
Percentage of net service revenue 100.00% 100.00% 100.00% 100.00%
Facility-based services        
Disaggregation of Revenue [Line Items]        
Percentage of net service revenue 100.00% 100.00% 100.00% 100.00%
HCI        
Disaggregation of Revenue [Line Items]        
Percentage of net service revenue 100.00% 100.00% 100.00% 100.00%
Medicare | Home health services        
Disaggregation of Revenue [Line Items]        
Percentage of net service revenue 58.90% 62.20% 59.30% 63.10%
Medicare | Hospice services        
Disaggregation of Revenue [Line Items]        
Percentage of net service revenue 92.80% 93.80% 92.90% 94.00%
Medicare | Facility-based services        
Disaggregation of Revenue [Line Items]        
Percentage of net service revenue 53.60% 50.10% 53.00% 51.40%
Medicare | HCI        
Disaggregation of Revenue [Line Items]        
Percentage of net service revenue 11.10% 17.80% 10.40% 19.50%
Managed Care, Commercial, and Other | Home health services        
Disaggregation of Revenue [Line Items]        
Percentage of net service revenue 41.10% 37.80% 40.70% 36.90%
Managed Care, Commercial, and Other | Hospice services        
Disaggregation of Revenue [Line Items]        
Percentage of net service revenue 7.20% 6.20% 7.10% 6.00%
Managed Care, Commercial, and Other | Home and community-based services        
Disaggregation of Revenue [Line Items]        
Percentage of net service revenue 64.50% 67.90% 64.00% 69.30%
Managed Care, Commercial, and Other | Facility-based services        
Disaggregation of Revenue [Line Items]        
Percentage of net service revenue 46.40% 49.90% 47.00% 48.60%
Managed Care, Commercial, and Other | HCI        
Disaggregation of Revenue [Line Items]        
Percentage of net service revenue 88.90% 82.20% 89.60% 80.50%
Medicaid | Home and community-based services        
Disaggregation of Revenue [Line Items]        
Percentage of net service revenue 35.50% 32.10% 36.00% 30.70%