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Basis Of Presentation (Narrative) (Details)
$ in Thousands
3 Months Ended 12 Months Ended
Mar. 31, 2022
USD ($)
item
Mar. 31, 2021
USD ($)
Dec. 31, 2019
USD ($)
Dec. 31, 2021
USD ($)
Effective tax rate 24.20% 21.80%    
Excess tax benefit on stock options $ 1,400 $ 3,200    
Capitalized property and equipment $ 754,000,000     $ 1,900
Cloud Computing [Member]        
Number of cloud computing arrangements | item 2      
Capitalized contract cost $ 5,600      
VITAS [Member] | Cloud Computing [Member]        
Capitalized contract cost, amortization expense $ 249 $ 199    
Capitalized contract cost, amortization period 5 years 8 months 12 days      
Roto-Rooter [Member]        
Total purchase price     $ 138,000  
Reacquired Franchise Rights [Member] | Roto-Rooter [Member]        
Total purchase price $ 59,200      
Amortization of business combinations 2,000      
Franchise fees $ 470      
Average remaining life 7 years      
Reacquired Franchise Rights [Member] | Roto-Rooter [Member] | Annualized Through 2026 [Member]        
Amortization of business combinations $ 8,100      
Reacquired Franchise Rights [Member] | Roto-Rooter [Member] | Annualized [Member]        
Franchise fees $ 1,900