Document And Entity Information
6 Months Ended
Jun. 30, 2017
Document And Entity Information [Abstract]  
Document Type 10-Q
Amendment Flag false
Document Period End Date Jun. 30, 2017
Document Fiscal Period Focus Q2
Document Fiscal Year Focus 2017
Entity Registrant Name CHEMED CORP
Trading Symbol CHE
Entity Central Index Key 0000019584
Current Fiscal Year End Date --12-31
Entity Filer Category Large Accelerated Filer
Entity Common Stock, Shares Outstanding 15,991,878