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Revenue Recognition (Narrative) (Details) - USD ($) | 3 Months Ended | 9 Months Ended | 12 Months Ended |
--- | --- | --- | --- | ---
Sep. 30, 2019 | Sep. 30, 2018 | Sep. 30, 2019 | Sep. 30, 2018 | Dec. 31, 2015 | Dec. 31, 2013 | Dec. 31, 2018
Revenue Recognition [line items] |  |  |  |  |  |  |
Medicare cap liability | $ 11,800,000 |  | $ 11,800,000 |  |  |  | $ 6,400,000
Three Program Projected Measurement Period Liability [Member] |  |  |  |  |  |  |
Revenue Recognition [line items] |  |  |  |  |  |  |
Additional Medicare cap adjustment related to prior cap liabilities |  |  |  |  | $ 6,700,000 |  |
Roto-Rooter [Member] |  |  |  |  |  |  |
Revenue Recognition [line items] |  |  |  |  |  |  |
Credit payment terms |  |  | 30 days |  |  |  |
Duration of advance notice of cancellation without penalty for both parties |  |  | 90 days |  |  |  |
Term of contract |  |  | 10 years |  |  |  |
Duration of advance notice of cancelation without penatly |  |  | 60 days |  |  |  |
Roto-Rooter [Member] | Maximum [Member] |  |  |  |  |  |  |
Revenue Recognition [line items] |  |  |  |  |  |  |
Duration of services provided |  |  | 5 days |  |  |  |
Roto-Rooter [Member] | Minimum [Member] |  |  |  |  |  |  |
Revenue Recognition [line items] |  |  |  |  |  |  |
Duration of services provided |  |  | 3 days |  |  |  |
VITAS [Member] |  |  |  |  |  |  |
Revenue Recognition [line items] |  |  |  |  |  |  |
Period of tier one care rate |  |  | 60 days |  |  |  |
Period of tier two care rate |  |  | 61 days |  |  |  |
Period of services provided after discharge |  |  | 12 months |  |  |  |
Period of service intensity add-on payment |  |  | 7 days |  |  |  |
Reimbursement period per day |  |  | 4 hours |  |  |  |
Reimbursement increments |  |  | 15 minutes |  |  |  |
Minimum amount of care per 24-hr period |  |  | 8 hours |  |  |  |
Charity care cost | 2,300,000 | $ 2,000,000.0 | $ 6,600,000 | $ 6,200,000 |  |  |
Inpatient Cap percentage Max |  |  | 20.00% |  |  |  |
Percentage of automatic budget reductions |  |  |  |  |  | 2.00% |
Percentage of medicaid reimbursement |  |  | 95.00% |  |  |  |
Percentage of expenses |  |  | 5.00% |  |  |  |
VITAS [Member] | Two Program Projected Measurement Period Liability [Member] |  |  |  |  |  |  |
Revenue Recognition [line items] |  |  |  |  |  |  |
Medicare cap adjustment |  | $ 2,000,000.0 |  | 487,000 |  |  |
Additional Medicare cap adjustment related to prior cap liabilities |  |  |  | $ 181,000 |  |  |
VITAS [Member] | Four Programs Projected Measurement Period Liability [Member] |  |  |  |  |  |  |
Revenue Recognition [line items] |  |  |  |  |  |  |
Medicare cap adjustment | $ 1,300,000 |  | $ 7,100,000 |  |  |  |
Additional Medicare cap adjustment related to prior cap liabilities |  |  | $ 847,000 |  |  |  |

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