Independent Contractor Operations (Schedule Of Independent Contractors) (Details) - USD ($) $ in Thousands	3 Months Ended
Mar. 31, 2016	Mar. 31, 2015
Independent Contractor Operations [Abstract]
Revenues	$ 9,858	$ 9,464
Pretax profits	$ 6,155	$ 5,557

Net service revenues attributable to the independent contractors.

No definition available.

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Namespace Prefix:	che_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration