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Amount of amortization expense for asset recognized from cost incurred to obtain or fulfill contract with customer.

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Percentage of current income tax expense (benefit) and deferred income tax expense (benefit) pertaining to continuing operations.

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The number of businesses acquired by the entity during the period.

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Amount, including tax collected from customer, of revenue from satisfaction of performance obligation by transferring promised good or service to customer. Tax collected from customer is tax assessed by governmental authority that is both imposed on and concurrent with specific revenue-producing transaction, including, but not limited to, sales, use, value-added and excise.

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Basis Of Presentation (Narrative) (Details) $ in Thousands	3 Months Ended		9 Months Ended		12 Months Ended
Basis Of Presentation (Narrative) (Details) $ in Thousands	Sep. 30, 2023 USD ($)	Sep. 30, 2022 USD ($)	Sep. 30, 2023 USD ($)	Sep. 30, 2022 USD ($)	Dec. 31, 2019 USD ($) item	Dec. 31, 2022 USD ($)
Effective tax rate	19.60%	25.60%	22.30%	24.20%
Excess tax benefit on stock options	$ 225	$ 450	$ 3,400	$ 4,400
Income tax expense (benefit) resulting from realignment of state and local tax structure	(4,200)
Capitalized property and equipment	744		744			$ 1,900
Revenue from Contract with Customer, Including Assessed Tax	340,801	302,619	989,658	914,412
VITAS [Member] \| Cloud Computing [Member]
Capitalized contract cost	5,600		5,600
Capitalized contract cost, amortization expense	$ 249	249	$ 746	746
Capitalized contract cost, amortization period	5 years 8 months 12 days		5 years 8 months 12 days
Roto-Rooter [Member]
Total purchase price					$ 138,000
Reacquired Franchise Rights [Member] \| Roto-Rooter [Member]
Intangible assets acquired					$ 59,200
Quarterly amortization of reacquired franchise agreements			$ 2,000
Average remaining life			7 years
Reacquired Franchise Rights [Member] \| Roto-Rooter [Member] \| Annualized Through 2026 [Member]
Quarterly amortization of reacquired franchise agreements			$ 8,100
Reacquired Franchise Rights [Member] \| Franchise Fees [Member] \| Roto-Rooter [Member]
Revenue from Contract with Customer, Including Assessed Tax			470
Reacquired Franchise Rights [Member] \| Franchise Fees [Member] \| Roto-Rooter [Member] \| Annualized [Member]
Revenue from Contract with Customer, Including Assessed Tax			1,900
Roto-Rooter [Member]
Revenue from Contract with Customer, Including Assessed Tax	$ 237,162	235,566	733,391	711,971
Number of completed business combinations \| item					2
Roto-Rooter [Member] \| Franchise Fees [Member]
Revenue from Contract with Customer, Including Assessed Tax	$ 1,457	$ 1,559	$ 4,195	$ 4,246