Legal And Regulatory Matters (Narrative) (Details) - USD ($) $ in Thousands		1 Months Ended	3 Months Ended		12 Months Ended
	Oct. 30, 2017	Mar. 31, 2019	Dec. 31, 2017	Jun. 30, 2017	Dec. 31, 2019	Dec. 31, 2017	Dec. 31, 2018
Loss Contingencies [Line Items]
Accrued legal					$ 6,941		$ 1,857
Settlement Agreement [Member]
Loss Contingencies [Line Items]
Term to impose monitoring, reporting, certification, oversight, screening, and training	5 years
Litigation expenses						$ 75,000
U.S. v. VITAS [Member]
Loss Contingencies [Line Items]
Litigation expenses			$ 90,000	$ 90,000
Litigation expenses, after tax				$ 55,800
Attorney Fees U.S. v. VITAS [Member]
Loss Contingencies [Line Items]
Litigation expenses			5,500
Litigation expenses, after tax			$ 3,400
VITAS [Member]
Loss Contingencies [Line Items]
Period of preceding the filing of the lawsuit					4 years
Seper/Chhina v. VITAS [Member]
Loss Contingencies [Line Items]
Settlement amount		$ 5,750
Accrued legal					$ 6,000
Lax v. Roto-Rooter [Member]
Loss Contingencies [Line Items]
Period of preceding the filing of the lawsuit					4 years