Revenue Recognition (Schedule Of Patient Care Service Revenue) (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2022	Sep. 30, 2021	Sep. 30, 2022	Sep. 30, 2021
Revenue Recognition, Multiple-deliverable Arrangements [Line Items]
Care service revenue	$ 302,619	$ 322,757	$ 914,412	$ 965,611
Net revenue	296,536	317,411	893,506	945,135
Routine Home Care [Member]
Revenue Recognition, Multiple-deliverable Arrangements [Line Items]
Care service revenue	256,253	268,137	771,520	796,817
Continuous Care [Member]
Revenue Recognition, Multiple-deliverable Arrangements [Line Items]
Care service revenue	18,600	22,027	57,717	73,658
Inpatient Care [Member]
Revenue Recognition, Multiple-deliverable Arrangements [Line Items]
Care service revenue	24,526	29,368	75,714	85,895
Care Services Total [Member]
Revenue Recognition, Multiple-deliverable Arrangements [Line Items]
Care service revenue	299,379	319,532	904,951	956,370
All Other Revenue- Self-pay, Respite Care, Etc. [Member]
Revenue Recognition, Multiple-deliverable Arrangements [Line Items]
Care service revenue	3,240	3,225	9,461	9,241
Medicare Cap Adjustment [Member]
Revenue Recognition, Multiple-deliverable Arrangements [Line Items]
Medicare cap adjustment	(618)	(97)	(5,118)	(3,597)
Implicit Price Concessions [Member]
Revenue Recognition, Multiple-deliverable Arrangements [Line Items]
Implicit price concessions	(2,952)	(3,119)	(8,992)	(9,428)
Room And Board, Net [Member]
Revenue Recognition, Multiple-deliverable Arrangements [Line Items]
Room and board, net	(2,513)	(2,130)	(6,796)	(7,451)
Medicare [Member] | Routine Home Care [Member]
Revenue Recognition, Multiple-deliverable Arrangements [Line Items]
Care service revenue	239,670	249,633	722,035	742,759
Medicare [Member] | Continuous Care [Member]
Revenue Recognition, Multiple-deliverable Arrangements [Line Items]
Care service revenue	17,083	20,000	53,103	66,916
Medicare [Member] | Inpatient Care [Member]
Revenue Recognition, Multiple-deliverable Arrangements [Line Items]
Care service revenue	21,391	25,249	66,412	74,594
Medicare [Member] | Care Services Total [Member]
Revenue Recognition, Multiple-deliverable Arrangements [Line Items]
Care service revenue	278,144	294,882	841,550	884,269
Medicaid [Member] | Routine Home Care [Member]
Revenue Recognition, Multiple-deliverable Arrangements [Line Items]
Care service revenue	10,822	12,102	32,848	35,190
Medicaid [Member] | Continuous Care [Member]
Revenue Recognition, Multiple-deliverable Arrangements [Line Items]
Care service revenue	787	1,105	2,337	3,601
Medicaid [Member] | Inpatient Care [Member]
Revenue Recognition, Multiple-deliverable Arrangements [Line Items]
Care service revenue	1,838	2,628	5,608	7,168
Medicaid [Member] | Care Services Total [Member]
Revenue Recognition, Multiple-deliverable Arrangements [Line Items]
Care service revenue	13,447	15,835	40,793	45,959
Commercial [Member] | Routine Home Care [Member]
Revenue Recognition, Multiple-deliverable Arrangements [Line Items]
Care service revenue	5,761	6,402	16,637	18,868
Commercial [Member] | Continuous Care [Member]
Revenue Recognition, Multiple-deliverable Arrangements [Line Items]
Care service revenue	730	922	2,277	3,141
Commercial [Member] | Inpatient Care [Member]
Revenue Recognition, Multiple-deliverable Arrangements [Line Items]
Care service revenue	1,297	1,491	3,694	4,133
Commercial [Member] | Care Services Total [Member]
Revenue Recognition, Multiple-deliverable Arrangements [Line Items]
Care service revenue	$ 7,788	$ 8,815	$ 22,608	$ 26,142