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Summary Of Significant Accounting Policies (Narrative) (Details) | 3 Months Ended | 6 Months Ended | 12 Months Ended | 23 Months Ended
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Sep. 30, 2023 USD ($) | Jun. 30, 2022 | Dec. 31, 2022 | Dec. 31, 2023 USD ($) item entity | Dec. 31, 2022 USD ($) | Dec. 31, 2021 USD ($) | Dec. 31, 2020 USD ($) | Mar. 31, 2022
Summary Of Significant Accounting Policies [Line Items] |  |  |  |  |  |  |  |
Covid-19 related costs |  |  |  |  |  | $ 14,000,000.0 |  |
Number of wholly-owned subsidiaries | entity |  |  |  | 2 |  |  |  |
Standby letters of credit outstanding |  |  |  | $ 45,200,000 |  |  |  |
Deferred payroll taxes |  |  |  |  | $ (18,175,000) | (18,175,000) | $ 36,400,000 |
Deferred payroll taxes paid |  |  |  |  | 18,200,000 | 18,200,000 |  |
Percentage of Medicare sequestration reimbursement |  | 1.00% | 2.00% |  |  |  |  |
Revenue |  |  |  | 2,264,417,000 | 2,134,963,000 | 2,139,261,000 |  |
Advertising expense in continuing operations |  |  |  | 72,200,000 | 68,600,000 | 62,100,000 |  |
Adjustments to casualty and workers compensation accrual, net pretax debits/(credits) |  |  |  | $ (6,862,000) | $ (5,790,000) | $ (6,332,000) |  |
Historical claims data, period of time |  |  |  | 10 years |  |  |  |
Effective income tax rate |  |  |  | 22.20% | 24.30% | 23.30% |  |
Excess tax benefit on stock options |  |  |  | $ 4,300,000 | $ 5,900,000 | $ 9,900,000 |  |
Lessee, Operating Lease, Option to Extend |  |  |  | up to 5 years |  |  |  |
Lessee, Operating Lease, Option to Terminate |  |  |  | options to terminate the lease within 1 year |  |  |  |
Income tax expense (benefit) resulting from realignment of state and local tax structure | $ (4,200,000) |  |  |  |  |  |  |
Roto Rooter And Corporate Office [Member] |  |  |  |  |  |  |  |
Summary Of Significant Accounting Policies [Line Items] |  |  |  |  |  |  |  |
Exposure on single claim |  |  |  | $ 750,000 |  |  |  |
Roto-Rooter [Member] |  |  |  |  |  |  |  |
Summary Of Significant Accounting Policies [Line Items] |  |  |  |  |  |  |  |
Number of operating segments | item |  |  |  | 1 |  |  |  |
Percent of population serviced |  |  |  | 90.00% |  |  |  |
VITAS [Member] |  |  |  |  |  |  |  |
Summary Of Significant Accounting Policies [Line Items] |  |  |  |  |  |  |  |
Covid-19 related costs |  |  |  |  |  | 10,000,000.0 |  |
Revenue |  |  |  | $ 0 |  |  |  |
Number of service providers | item |  |  |  | 1 |  |  |  |
Exposure on single claim |  |  |  | $ 1,000,000 |  |  |  |
Professional liability and other risks, insurance deductible |  |  |  | $ 1,000,000 |  |  |  |
Minimum [Member] |  |  |  |  |  |  |  |
Summary Of Significant Accounting Policies [Line Items] |  |  |  |  |  |  |  |
Lessee, Operating Lease, Remaining Lease Term |  |  |  | 1 year |  |  |  |
Maximum [Member] |  |  |  |  |  |  |  |
Summary Of Significant Accounting Policies [Line Items] |  |  |  |  |  |  |  |
Lessee, Operating Lease, Remaining Lease Term |  |  |  | 10 years |  |  |  |
Cloud Computing [Member] | Roto-Rooter [Member] |  |  |  |  |  |  |  |
Summary Of Significant Accounting Policies [Line Items] |  |  |  |  |  |  |  |
Capitalized contract cost, amortization period |  |  |  | 5 years 8 months 12 days |  |  |  |
Cloud Computing [Member] | ASU No. 2018-15 [Member] |  |  |  |  |  |  |  |
Summary Of Significant Accounting Policies [Line Items] |  |  |  |  |  |  |  |
Capitalized contract cost |  |  |  | $ 5,600,000 |  |  |  |
Capitalized contract cost, amortization expense |  |  |  | $ 995,000 |  |  |  |
Customer Concentration Risk [Member] | Medicare [Member] | Accounts Receivable [Member] |  |  |  |  |  |  |  |
Summary Of Significant Accounting Policies [Line Items] |  |  |  |  |  |  |  |
Concentration risk, percentage |  |  |  | 75.00% | 64.00% |  |  |
Customer Concentration Risk [Member] | Medicaid [Member] | Accounts Receivable [Member] |  |  |  |  |  |  |  |
Summary Of Significant Accounting Policies [Line Items] |  |  |  |  |  |  |  |
Concentration risk, percentage |  |  |  | 19.00% | 29.00% |  |  |
Customer Concentration Risk [Member] | Medicare, Medicaid, And Managed Medicaid [Member] | Accounts Receivable [Member] |  |  |  |  |  |  |  |
Summary Of Significant Accounting Policies [Line Items] |  |  |  |  |  |  |  |
Concentration risk, percentage |  |  |  | 80.00% |  |  |  |
CARES Act [Member] | VITAS [Member] |  |  |  |  |  |  |  |
Summary Of Significant Accounting Policies [Line Items] |  |  |  |  |  |  |  |
Percentage of Medicare sequestration reimbursement |  |  |  |  |  |  |  | 2.00%
Revenue |  |  |  |  | $ 8,600,000 | $ 23,900,000 | $ 16,800,000 |

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