Revenue Recognition (Schedule Of Patient Care Service Revenue) (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021
Revenue Recognition, Multiple-deliverable Arrangements [Line Items]
Care service revenue	$ 305,001	$ 319,657	$ 611,792	$ 642,854
Net revenue	297,781	311,935	596,970	627,723
Routine Home Care [Member]
Revenue Recognition, Multiple-deliverable Arrangements [Line Items]
Care service revenue	257,631	264,926	515,267	528,680
Continuous Care [Member]
Revenue Recognition, Multiple-deliverable Arrangements [Line Items]
Care service revenue	19,538	24,282	39,116	51,631
Inpatient Care [Member]
Revenue Recognition, Multiple-deliverable Arrangements [Line Items]
Care service revenue	24,619	27,371	51,189	56,527
Care Services Total [Member]
Revenue Recognition, Multiple-deliverable Arrangements [Line Items]
Care service revenue	301,788	316,579	605,572	636,838
All Other Revenue- Self-pay, Respite Care, Etc. [Member]
Revenue Recognition, Multiple-deliverable Arrangements [Line Items]
Care service revenue	3,213	3,078	6,220	6,016
Medicare Cap Adjustment [Member]
Revenue Recognition, Multiple-deliverable Arrangements [Line Items]
Medicare cap adjustment	(2,000)	(2,000)	(4,500)	(3,500)
Implicit Price Concessions [Member]
Revenue Recognition, Multiple-deliverable Arrangements [Line Items]
Implicit price concessions	(3,054)	(3,065)	(6,039)	(6,309)
Room And Board, Net [Member]
Revenue Recognition, Multiple-deliverable Arrangements [Line Items]
Room and board, net	(2,166)	(2,657)	(4,283)	(5,322)
Medicare [Member] | Routine Home Care [Member]
Revenue Recognition, Multiple-deliverable Arrangements [Line Items]
Care service revenue	241,028	247,061	482,365	493,125
Medicare [Member] | Continuous Care [Member]
Revenue Recognition, Multiple-deliverable Arrangements [Line Items]
Care service revenue	18,044	22,010	36,020	46,917
Medicare [Member] | Inpatient Care [Member]
Revenue Recognition, Multiple-deliverable Arrangements [Line Items]
Care service revenue	21,595	23,905	45,022	49,346
Medicare [Member] | Care Services Total [Member]
Revenue Recognition, Multiple-deliverable Arrangements [Line Items]
Care service revenue	280,667	292,976	563,407	589,388
Medicaid [Member] | Routine Home Care [Member]
Revenue Recognition, Multiple-deliverable Arrangements [Line Items]
Care service revenue	11,119	11,509	22,026	23,088
Medicaid [Member] | Continuous Care [Member]
Revenue Recognition, Multiple-deliverable Arrangements [Line Items]
Care service revenue	735	1,237	1,550	2,496
Medicaid [Member] | Inpatient Care [Member]
Revenue Recognition, Multiple-deliverable Arrangements [Line Items]
Care service revenue	1,807	2,069	3,770	4,539
Medicaid [Member] | Care Services Total [Member]
Revenue Recognition, Multiple-deliverable Arrangements [Line Items]
Care service revenue	13,661	14,815	27,346	30,123
Commercial [Member] | Routine Home Care [Member]
Revenue Recognition, Multiple-deliverable Arrangements [Line Items]
Care service revenue	5,484	6,356	10,876	12,467
Commercial [Member] | Continuous Care [Member]
Revenue Recognition, Multiple-deliverable Arrangements [Line Items]
Care service revenue	759	1,035	1,546	2,218
Commercial [Member] | Inpatient Care [Member]
Revenue Recognition, Multiple-deliverable Arrangements [Line Items]
Care service revenue	1,217	1,397	2,397	2,642
Commercial [Member] | Care Services Total [Member]
Revenue Recognition, Multiple-deliverable Arrangements [Line Items]
Care service revenue	$ 7,460	$ 8,788	$ 14,819	$ 17,327