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Basis Of Presentation (Narrative) (Details) - USD ($) | 3 Months Ended | 12 Months Ended |
--- | --- | --- | ---
Mar. 31, 2023 | Mar. 31, 2022 | Dec. 31, 2019 | Dec. 31, 2022
Effective tax rate | 23.90% | 24.20% |  |
Excess tax benefit on stock options | $ 1,700,000 | $ 1,400,000 |  |
Capitalized property and equipment | 1,700,000 |  |  | $ 1,900,000
Revenue from Contract with Customer, Including Assessed Tax | 319,105,000 | 306,791,000 |  |
VITAS [Member] | Cloud Computing [Member] |  |  |  |
Capitalized contract cost | 5,600,000 |  |  |
Capitalized contract cost, amortization expense | $ 249,000 | $ 249,000 |  |
Capitalized contract cost, amortization period | 5 years 8 months 12 days |  |  |
Roto-Rooter [Member] |  |  |  |
Total purchase price |  |  | $ 138,000,000.0 |
Reacquired Franchise Rights [Member] | Roto-Rooter [Member] |  |  |  |
Intangible assets acquired |  |  | $ 59,200,000 |
Quarterly amortization of reacquired franchise agreements | $ 2,000,000.0 |  |  |
Average remaining life | 7 years |  |  |
Reacquired Franchise Rights [Member] | Roto-Rooter [Member] | Annualized Through 2026 [Member] |  |  |  |
Quarterly amortization of reacquired franchise agreements | $ 8,100,000 |  |  |
Reacquired Franchise Rights [Member] | Franchise Fees [Member] | Roto-Rooter [Member] |  |  |  |
Revenue from Contract with Customer, Including Assessed Tax | 470,000 |  |  |
Reacquired Franchise Rights [Member] | Franchise Fees [Member] | Roto-Rooter [Member] | Annualized [Member] |  |  |  |
Revenue from Contract with Customer, Including Assessed Tax | $ 1,900,000 |  |  |

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